Iom Daikin Ahu Ddm Fuw Ddw

INSTALLATION, OPERATION & MAINTENANCE MANUAL

MODULAR AIR HANDLING UNIT CABINET FAN COIL UNIT

Please read this instruction thoroughly before using your units. Properly keep it. The above figures are for reference only. Please refer to the object.

1

DDM1401-A1 Part No.: M08019001007

Contents 1

Safety Precautions .....................................................................................................................3

2

User Instructions........................................................................................................................6

3

General........................................................................................................................................7 3.1. Modular Air Handling Unit............................................................................................................. 7 3.2. Cabinet Fan Coil Unit..................................................................................................................... 7

4

Installation ..................................................................................................................................9 4.1. Shipment......................................................................................................................................... 9 4.2. Acceptance ..................................................................................................................................... 9 4.3. Rigging............................................................................................................................................ 9 4.4. Storage............................................................................................................................................ 9 4.5. Assembly and Installation............................................................................................................. 9 4.6. Onsite Installation........................................................................................................................ 10 4.7. Ceiling Installation ....................................................................................................................... 12 4.8. Panel Holing*................................................................................................................................ 13 4.9. Pipeline Connection and Usage of Coils................................................................................... 13

5

Wiring Connection.................................................................................................................... 15 5.1. Lighting Connection*................................................................................................................... 15 5.2. Motor Cabling............................................................................................................................... 15 5.3. Motor Line Connection................................................................................................................ 15 5.4. Electrical Heating Connection* .................................................................................................. 17 5.5. Other Connection Lines*............................................................................................................. 18

6

Debugging and Commissioning.............................................................................................. 19 6.1. Debugging .................................................................................................................................... 19 6.2. Commissioning ............................................................................................................................ 19

7

Regular Maintenance ............................................................................................................... 20 7.1. Mixing Box*................................................................................................................................... 20 7.2. Filter Section*............................................................................................................................... 20 7.3. Coil Section .................................................................................................................................. 20 7.4. Fan and Motor .............................................................................................................................. 21 7.5. Silencer Section*.......................................................................................................................... 23 7.6. Electric Heater Section* .............................................................................................................. 23 7.7. Checking Section* ....................................................................................................................... 23 7.8. Others............................................................................................................................................ 23

8

Maintenance Plan of Units (Recommend)............................................................................... 24

2

9

Trouble-shooting ...................................................................................................................... 25

10 After-sales Service Warranty ................................................................................................... 27 10.1.

After-sales Service ................................................................................................................. 27

10.2.

Warranty .................................................................................................................................. 27

11 Repair and Maintenance Record ............................................................................................. 28 Appendix 1: Dimensions For DDW Frameless Unit ...................................................................... 29 Appendix 2: Dimensions For DDW Frame Unit ............................................................................. 31 Appendix 3: Dimensions For FUW-H/V Unit .................................................................................. 33 Appendix 4: Dimensions For FUW-A Unit...................................................................................... 35

Bulletin illustration covers the general appearance of our products at the time of publication and we reserve the right to make change in design and construction any time without notice.

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1 Safety Precautions Please read this instruction Warning: Incorrect operations may cause death or serious accidents. Caution: Measures need to be followed to avoid unit damages and personal injuries. Indicate important instructions that must be followed. Indicate actions strictly prohibited. Installation Preparations and Precautions for Use To ensure optimum performance of the unit, follow the instructions below during operations. If any specification is not met, take feasible measures to solve the issue before power-on.

WARNING Installation and maintenance should be performed only by professionals that are entrusted by the supplier.

Installation and maintenance are to be performed only by trained and qualified personnels. Ensure the installation follows the instructions on this manual. Improper installation may cause unit damage, casualties, electric shock, fire, or other accidents. Installation and construction of the units must abide by local regulations. Anti-wind, anti-shock and other preventive measures must be taken as regulated.

Otherwise, it may cause dumping or falling accidents. Increase equipment for rain and snow when the unit is installed outdoors;

The unit installation base `must be supportable enough. The unit must be installed on solid grounds to prevent from falling of the unit or injuries caused by insufficient strength.

The accessory can be installed by professionals that are entrusted. Select the optional components designed by manufacturer. Improper selection may cause electric chock, fire, or other accidents.

Electrical part must be moisture proof. Otherwise, it may cause electrical shock, fire, or other accidents.

Dedicated line should be installed by professionals in electrical installation. Electrical installation must abide by local regulations. Improper use of power cord may cause electric leakage or fire.

The design of water pipe and air pipe must abide by local regulations.

The highest operating temperature for the unit is 60°°C. Too high ambient temperature or internal temperature may damage the unit.

4

CAUTION PRECAUTIONS

BEFORE

INSTALLING

The cold/warm water used by the unit must meet the standard. Using unqualified water may affect the life and performance of the unit. In severe case, it may cause leakage. The requirement of water quality refers to Chapter 4.

Configure the residual current circuit breaker correctly. Install the residual current circuit breaker in accordance with electrical regulations. Error installation may cause electric shock or other accidents.

Do not install the unit in terrible environment. Do not install the unit near the exhaust outlet of a toilet, or a hospital operating room, or near the processing facilities of sewers, because filth, oil stain, salinity or large amount of sulfurized gas may cause the corrosion of the components. Do not install the unit in a place where combustible gas leakage may happens. If the gas leaks and gathers around the unit, there is a risk of explosion and fire accidents. If the unit is installed near the hospital, telecommunication station or other similar places, take proper measures to safeguard the unit. Frequency transformer, house generator, high frequency medical equipment and radio communication device may cause the air-conditioner to run abnormally or quit working.

Avoid tightening the power wire. Otherwise, heat is generated due to cable fracture, thereby causing fire or other accidents.

Pay attention to product transportation. If the weight of the product is over 20kg, transportation needs to be finished by specific machine rather than one person.

Correctly earthing of the unit. Earthing wires can not be connected to gas pipes, water pipes, lightening conductor and telephone lines. Error earthing may cause electric shock.

Safety guarantee Construction personnel must be well-educated for three-level safety knowledge, wear safety helmets on site, fasten the safety belt when working at heights (2m or above), and wear protective shoes. Be careful when using electric tools. Only electricians can connect and disconnect cables or use the power distribution cabinet. Coating operator must wear protective equipment and ensure ventilation on site.Open flame is prohibited at the construction site. Civilized construction is required. Do not dispose construction materials and wastes at discretion.

Do not use lubricating oil or anti-freezing solution of wrong types and version. Otherwise, it may cause damage to the unit.

The power supply voltage does not exceed rated voltage by ±10%, and the frequency does not exceed rated frequency by ±1%.

Power cable must be separate from solder transformer which may cause wide voltage range. Fan and motor must be equipped with overload protection. Otherwise, it may cause fire or other accidents. Do not touch the sharp plate and heat exchange edges.

Ensure the drainage is smooth. Improper drainage may cause poor drainage so as to dampen the device.

Civilized construction Stack materials in specified positions on site and take proper measures to protect the materials from moisture, rain, and snow if they are stacked open. During simultaneous operations in the same room, all construction operators must respect each other and work properly and cooperatively. Establish a civilized construction system. The construction team leader is responsible for civilized construction in the working area.

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CAUTION IINSTALLATION AND PRECAUTION Do not use power switch to start or stop the operation of unit directly. Such error operation may cause electric shock or fire accident. Do not change the set value of the safety protector. Otherwise, it may cause fire accident or explosion. Do not use fuse beyond the normal capacity. Replacing the fuse with wire may endanger the device or cause fire accident. Do not short-circuit the security device to start the unit. This may cause damage to the unit or fire and explosion accident. Do not use other functions of the unit beyond its scope of design. The unit is not applicable to preserve foods, plants and animals, precision instruments and artworks. Otherwise, the quality of these may be undermined. Do not dismantle the components and change the connection lines at will. If necessary, please contact the seller.

Do not use a damp hand to operate the unit. Otherwise it will cause electric shock.

Stop the unit and cut off the power before maintenance. After shutdown, the blades may still turn for one to three minutes. Do not force the blades to stop by hands or other objects. Proceed with the maintenance work after the blades stop completely. The unit can be installed and maintained only by professionals. Otherwise, it may cause electric shock, accidental injuries and other accidents. Empty the remaining water inside the unit when it stops working for a long time. When the unit is not operating, ensure that the water pipe is full of antifreeze or empty the remaining water inside the pipe. Otherwise, the coil may be cracked to leak water due to frost. Do not place and hang any object above the unit. Object dumping or falling may cause accidental injuries. Do not touch working components of the unit. Otherwise, accidents may occur. Do not touch high-temperature components such as the steam coil and electric heating. Otherwise it may cause burning. When the unit runs abnormally, cut off the power immediately and contact the seller.

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2 User Instructions Rights and Obligations To ensure the warranty service, only the service personnel of our company or experienced technical personnel is capable of the installation and maintenance work. We are not liable for any property loss or casualties as result of violation. Check All units should be carefully inspected for damage when received and check whether all the components are complete. Damage or loss of parts in shipment should be reported to the dealer in written form as soon as possible. Notice for Use Clean the water system regularly. In winter when the ambient temperature is below 0°C, take anti-freezing measures. Particularly, external pump must be connected to the communications of the unit. Otherwise, the coil may be frozen to damage due to water shortage. Do not put objects near the air inlet or outlet, for which may undermine the unit performance or cause unit shutdown. Precautions Precautions in chapter one are of great importance to follow. These precautions should be at hand for reference at any time.

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3 General This manual has been prepared as a guard for installing, operating and maintaining the modular air handling unit and cabinet fan coil unit of our company. We have produced a quality product that will effectively meet your application. However, proper installation, operation, and maintenance procedures must be followed to realize the full capability and life of the unit.

3.1. Modular Air Handling Unit DDM 06 07- C2 - H122310 Model name

Serial number

Width modular

Name of the series

Height modular Model name:

DDM

Height modular:

03, 04, 05

Width modular:

04, 05, 06 …

Name of the series:

C2- 25mm panel series;

C3- 30mm panel series;

XE- 50mm panel series;

E5- 50mm panel series

Serial number:

C5- 50mm panel series

Factory internal identification code

3.2. Cabinet Fan Coil Unit DDW 080 H R 15 - 4 L-F F B E Model name

Export label

Air flow code

Design version number

Structure type

Air outlet direction

Air Inlet condition

Power mode

External total pressure

Pipeline connection

Coil rows Model name:

DDW (Double-skin);

FUW (Single-skin)

Air flow code:

020, 030, 040, 050, 060, 080, 150,180, 200,… 080-air flow is 8000CMH,

Structure type:

H: Horizontal;

V: Vertical

Air inlet condition:

R: Return air unit;

F: Fresh air unit

External total pressure:

08, 15, 22, 30,… 08-80Pa, 15-150 Pa, 22-220 Pa, 30-300 Pa;

Coil rows:

4: 4 rows;

6: 6 rows

Pipe connection:

L: Left-oriented;

Power supply form:

F: 380V/3N ~ /50Hz

Air outlet direction:

T: Top air outlet (horizontal unit is Tl and vertical unit is T outlet);

R: Right-oriented

F: Horizontal air outlet (FI outlet)

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FUW 020 A - 4 L- A A A E

Model name Air flow code Structure type Coil rows Model name: Air flow code: Structure type: Coil rows: Pipe connection: Power supply form: Export label:

Export label Design version number Power mode Pipe connection type

FUW (Ultra-thin ceiling unit) 015, 020, 025, 030, 035, 040,050 020-air flow is 2000CMH, A 4: 4 rows; 6: 6 rows L: Left-oriented; R: Right-oriented A: 220V/50Hz K: 220V/60Hz E: Standard export unit U: Export unit configure with 60° threaded pipes skip the domestic sold unit

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4 Installation 4.1. Shipment The units can be delivered as separate section or completely assembled (ASS). For modular air handling unit, complete knock down shipment (CKD) is needed if the unit is big in size or there is special requirement from customers.

4.2. Acceptance Check if the sections, accessories and panels are intact in accordance with packing list before installation. If there is damage or loss in shipment, please inform the seller in written form as soon as possible.

4.3. Rigging To prevent damage to unit cabinet, a specific lifting method for offloading the units is recommended as shown in figure 1. A rod and ropes capable of bearing the weight during hoisting are required. The spreader bars must be in position to prevent straps or cables from rubbing the frame panel. Ensure stability and balance when lifting the units and avoid twisting or uneven lifting. Care should be taken to prevent coil connections, drain pan connection and accessory section from damage. It is proposed to handle the unit by forklift when it is on flat ground (Figure 2). The forks must only be applied under the unit base frame or wooden frame and not against the panel. In case when fork of the forklift is too short then suitable extensions should be used.

Figure 1

Figure 2

4.4. Storage For external storage prior to installation, the units should be more protected by tarpaulins or similar and to be protected from dust, rain, snow, constant sun exposure and rodents. Take care of the protection film on the surface. Do not stack the unit.

4.5. Assembly and Installation a. Adjust the base level. Uneven base may lead poor drainage of the condensate water and cause leakage, or damage the dynamic balance of the fan and cause breakdown and vibration of the bearing. When the unit is shut down during winter, residue water inside the coil may cause frost cracking. Therefore, the base must be placed horizontally and have enough strength. b. Usually, the operating weight of the unit is more than 120% of the unit weight. c.

For unit installed on the ground, make sure the base and floor have enough strength. To reduce the vibration of the unit, it is suggested to place a damping rubber cushion under the base. The factory can select a damping cushion for the entire unit.

d. The base of the unit can be made from concrete placement or channel steel welding. Ensure that the surface of the steel is straight during welding. The height of the concrete base should be at least 150 mm,

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reserve trenches and floor drains around the base to ensure condense water discharge. e. Drain pipes and traps must be at least same diameter as the drain pan connection. Drain pan must be level to permit condensation from coil drain freely. See figure 3 for the recommended depth and distance of drain trap installation. Drain pan are not designed to be walked on.

Negative Pressure Trap

Positive Pressure Trap

H ≥ Maximum negative pressure/9.8+20mm (1mmH2O=9.8Pa) Figure 3

4.6. Onsite Installation The unit can be installed onsite only by professionals that are familiar with the unit and are specially trained. Pay attention to the following: a. Unit should be assembled in according with the drawing provided by factory exactly. b. Installation and operation of the unit must abide by local codes and regulations.

Adequate space should be left around the unit for coils & drainage piping, filter replacement, and maintenance. (Figure 4 shows the reserved space of modular air handling unit; Figure 5 shows the reserved space of cabinet fan coil unit.) >=W+100mm

e.

>=600mm >=W+100mm

d.

Check whether the accessories and wooden case are in accordance with the packing list. Fix the accessories (air valve, flange and weather proof) onto the unit. Clear the impurities when you do installation and use compressed air or brush to clear up dust and correct deformed fins.

W

c.

Figure 4

11

50 0

50 0

0 50

00

0 50

10

10 00

Figure 5 f.

The design of air duct should abide by local codes and regulations.

g. Ensure that the length of straight duct is at least twice the length of the air outlet. Otherwise, it may cause pressure drop. h. The unit should not bear the weight of external pipelines and air ducts. i.

Thermal insulation must be achieved for air ducts.

j.

Flexible connection between the unit and external air ducts can avoid vibration. Ensure that the joint is sealed and treated with proper insulation to prevent condensation on the unit surface due to air leak.

k. Install the air filter before unit commissioning. Check whether the filter element of the air filter is damaged or contaminated. l.

Provide weather proof and shading devices when the unit is installed outdoors.

m. The transportation sections of units must be closely linked. Otherwise, it may cause air leakage or condensation. The method of linking between each transportation section is as follows: For DDM-C Series/DDM-XE Series/DDW Vertical Units: a. After install and level the first section in position, push the second section close to the first section after the alignment is correct. Connect the two sections with bolts at the unit base without fastening. (For DDW vertical unit, the channel steel does not need to be connected.) b. Coat the joint of sections with glass cement. Snap the four PVC strips into the joint of sections. c. Connect the top of the joint of the sections with connection blocks and bolts (Figure 7). d. Tighten the bolt connecting the channel steel base and the connection blocks. Fix the PVC strips with screws and cover the hole.

Figure 6

Figure 7

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For DDM-E Series Units: a. After install and level the first section in position, push the second section close to the first section after the alignment is correct. b. Connect the channel steel bases of the two sections with bolts, and tighten the bolts (Figure 6). c. Snap the four connection strips into the joint of sections, and fix them with ST4.8*16 screws. d. Install the cover plate attached with sealing strip to the joint of sections, and fix it with ST5.5*25 screw (Figure 8).

Figure 8

4.7. Ceiling Installation Assemble the unit before ceiling operation. Ensure that the components are installed and the sections are properly connected. The unit should be placed on an integrated channel steel for hoisting, or the unit performance may be undermined by the inconsistent installation heights. Roof hoisting is prohibited since the roof cannot bear the weight of the unit. Ensure that the construction components for ceiling, the integrated channel steel and hoisting rod have enough strength to meet the standard of operation weight. Determine the position of the hoisting rod and adjust the fixed screw to keep the unit balanced. Add a bumper on top to reduce vibrations (Figure 9). A spring bumper is recommended.

Figure 9

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4.8. Panel Holing* The holing of onsite electric and control wiring follows the steps below: a. Determine the number and location of holes required for electrical conduit, piping, and control wiring. Mark them with black oil pen. Do not open holes on the access panel. b. Once a proper location is determined, drill a small pilot hole completely through the panel. Then use a sharp hole saw or a saber saw and cut from each side of the panel. c. Seal the double-wall panel on each side with an industrial/commercial grade silicone sealant or duct seal compound. It is extremely important to seal each panel hole or penetration securely so it is airtight, watertight, and so that there is no exposed insulation.

Figure 10 *For FUW units, there is no need for extra holes as electric wiring is led to the terminal block.

4.9. Pipeline Connection and Usage of Coils a. The installation of water system pipes should abide by local laws and regulations. b. In order to optimize performance and save installation cost, designer should manage to reduce bending and replacement during design stage. The pipeline system must be treated with proper insulation. Wash the pipes after being installed. Ensure the valves connecting units are closed during washing to prevent the sundries in the pipe from being flushed into the coil and block the passage. c. Pipes connecting to the coil should in according with the stickers. (Cooling coil is in bottom-up direction, while steam coil is in top-down direction) to avoid wrong connection. d. Do not change the orientation of pipeline connection. e. To avoid damaging the coil connections at coil header, it is essential to hold the hexagonal connector with tools whilst applying counter force to tighten the joint. (Figure 11).

Figure 11

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f.

Install a steam trap at the outlet of steam coil to ensure smooth drainage if a steam coil is used. The installation of steam pipe must abide by local laws and regulations to ensure that the saturated steam enters the steam coil which prevents the coil from water hammer.

g. Allow the linkage between inlet water and fan to avoid the coil under-cooling or overheating. The coil operates only when the fan runs. h. The designed operation pressure of the coil is 1.6 MPa. Too high pressure will damage the coil. i.

During commission or out running of the unit in the winter, discharge the remaining water in the coil (system) timely or adopt other methods (for example, add anti-freezing solution) to prevent the coil from crack in low temperature (for details, refer to the maintenance and preservation of the coil).

Warning: Improper commissioning and maintenance may cause coil crack in low temperature. j.

If the ambient temperature or air inlet temperature is equal to or lower than 2°C, install preheating device at the air inlet of a fresh air handling unit. In addition, a sealed regulating valve needs to be installed at the new air inlet. Install anti-freezing switch beside the coil and interlock it to the sealed regulating valve and the fan. When the unit starts, start the preheating coil or take other measures beforehand to prevent the coil from cracking in low temperature. And when the unit is running, constantly provide the coil with warm water with a temperature of no less than 60°C and ensure that the water flow speed inside the coil is no less than 1 m/s.

k. Water quality requirements: Water softening treatment must be given in advance to prevent scaling in the heat exchanger which may affect heat exchange effect. Moreover, water without softening treatment may form scale in the pipe to increase water resistance which will affect water flow and pump work efficiency. Reference value

Item pH(25℃) Conductivity (25℃) Benchmark items

7.5～9.0

○

○

＜800

○

○

-

－

mg(Cl )/L

＜200

○

SO42-

mg(SO42-)/L

＜200

○

Acid consumption (pH=4.8)

mg(CaCO3)/L

＜100

○

Full hardness

mg(CaCO3)/L

＜200

○

mg(Fe)/L

＜1.0

○

Cl

Fe Reference items

µS/cm

Tendency Scaling Corrosion

2-

mg(S )/L

0

○

NH4+

mg(NH4+)/L

＜1.0

○

SiO2

mg(SiO2)/L

＜50

S

2-

Note: ○ refers to that this factor is related to the tendency of corrosion or scaling

○

○

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5 Wiring Connection Electric connecting should be compliant with relevant local laws and regulations. Besides, pay attention to the following: a. Before connecting, check whether the power supply meets the requirement of the voltage value stipulated on the of unit nameplate; b. Set up an independent electrical power supply, power off and overload protection device for each unit. c. The voltage difference between any two-phrases of power supply should be smaller than 2% of the nominal voltage.

5.1. Lighting Connection* We provide 36V/24V light for modular air handling units. Ensure that correct power supply voltage is used during connecting (see Figure 15). Transformers are optional by user. *Apply to modular air handling units only.

Figure 15

5.2. Motor Cabling Motor wiring must go down along the enclosure and must be fixed by the cable clips, it is prohibited to go upwards or oblique and prevent condensation water flowing into motor and lead to a failure. The leading-out hole of the motor connection box must be sealed.

Correct connection

Wrong connection Figure 12

Wrong connection

5.3. Motor Line Connection The line connection method of motor varies with local power supply. Please refer to the motor nameplate. In the following figure, 380V/3N~/50Hz model is taken as an example to show the connection method:

16

MOTOR POWER≤3kW

3kW＜MOTOR POWER＜11kW

MOTOR POWER≥11kW

Figure 13 The following figure is the schematic diagram of motor line connection of FUW series unit. Contact the factory if the local power supply is not consistent with that shown in the diagram.

Figure 14

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5.4. Electrical Heating Connection* *Electrical heating section is available to only modular air handling units. Before leaving factory, internal lines of electrical heater have already been connected and an inlet for power cable connection has been left. Connect lines in strict accordance with electrical schematic diagram indicated on the device label. Do not change the connection at will. Warning: Change the connect wires without permission may cause fire, casualties, or other major accidents. In such cases, customers shall liable for the consequences. When the factory does not configure the control cabinet, on-site cable distribution must be performed in accordance with the instructions shown in Figure 16. Connection methods of electrical heater may be different due to the varied local power supplies in different regions. Refer to the circuit diagram in the connection box of the electrical heating section of the unit. The following figure takes the 380V/3N~/50Hz model as an example:

L1

L1 L2 L3 N PE

power supply L2 380V/3N~/50Hz L3 N PE

customer must configure another contactor

Q1

Q2

Qn

KM1

KM2

KMn

power supply

TB1

A

TB3

TB2 B

A B

L

R S T N

N

L

R S T N

N

KM1

DPS KMI 1

TBn R S T N

KM2

KM2

KMn

KMn

5

KM1 F1

F2

2

4

TH1

TH2

3

group 1

Description：

F1/F2: Fuse； TB1～TBn : Terminal Block； Q1~Qn: Breaker

group

2

group

n

TH1/TH2: Temperature Control Switch KM1～KMn: Contactor DPS: Differential Pressure Switch；

Figure 16 a. For each group of electric heater, third-party control cabinet must be configured with another contactor, cannot share the same contactor which is factory equipped. b. L, N port on the terminal board TB1 must be supplied with independent 220V single-phase power. c. Electrical heating high temperature protection and non-wind protection port A and B must be connected in serial to the control loop of electrical heater. d. Enable the fan before enable the electrical heater. After the fan starts and a certain air flow is reached, pressure difference switch will close, L and N power supply loops are connected. The contactor configured in the electrical heater connection box is connected simultaneously, and the electrical heater is allowed to operate. However, whether the electrical heater can be powered on and starts to operate is

18

determined by the connection of the contactor in the customer’s control cabinet (the connection of customer-configured connector is determined by the requirement of hot load capacity and electrical heating protection A and B loops); e. Fuse F1 and temperature control switch TH1 are installed on the top of electrical heating zone. Fuse F2 and temperature control switch TH2 are installed near the inlet of fan section. When the fan is running, the electrical heating is powered down if the protection switches A and B are disconnected. In this case, Users must check the equipment to ensure that no failure occurs before the electrical heater is started again. f.

If the fan goes down and the electrical heater is not closed, the trebling protection of DPS. F1 and TH1 will cut L and N power supply loops, and disable electrical heating;

g. If the fan runs in an over-low frequency and the air flow reduces but does not reach the set point of differential pressure switch, the air supply temperature increases until it reaches the set point of F2 or TH2. Then, F2 and TH2 protection will cut down L and N power supply loops and disable electrical heating. Warning: Electrical heating high-temperature protect and no flow protect switches should be connected to the control circuit in series. It can not be short circuit. The heating can be turned on only when the fan is work and the fan can only stop after 3 minutes since the heating off.

5.5. Other Connection Lines* Wiring of other components such as humidifier refer to the manufacture’s instructions attached. Notes: a. The humidifier must be interlocked with the fan. That is, the humidifier can be enabled only after the fan starts; the fan can be shut down only after the humidifier is disabled; b.

The fan should only be turned on after the damper actuators on and before the actuators off. The damer should be on when the fan running.

*Other sections such as humidifier is available to only modular air handling units. Warning: All electrics must be safety grounded, and cannot be connected to neutral instead. Incorrect connection can cause severe explosion, fire and personal injuries. A circuit-break device with sufficient capacity must be installed near the inlet power cable. The circuit-break device must support short-circuit protection and earth-fault protection, and the clearance between open contacts must be at least 3 mm.

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6 Debugging and Commissioning 6.1. Debugging a. Detect whether the installation is completed and whether internal sundries are removed; b. For model with spring isolators, temporary transport brackets are fitted to prevent damage during shipment. All transport brackets must be removed after installation and adjust the spring’s height accordingly to ensure the frame is level before commissioning by turn the adjustment nut bolt clockwise or anti-clockwise. Tighten the bolt after completing adjustment. (Figure 17);

Please remove them after installation and before commissioning.

Figure 17 c. Check whether the filter material is damaged or polluted. Install high efficiency particulate air filter after debugging. User may prepare primary filter for debugging; d. Check the lubrication of rotatable parts, whether the fan impeller collides with enclosure; e. Check the tightness of belt (see Figure 20); f.

Check whether the dampers are opened as designed and the locking mechanism is locked securely;

g. Check whether the water system is clean and out of air. Before supplying water, open the vent valve first and empty the air in the pipeline until water outputs; h. Avoid coil freezing during the debugging in winter. Constantly supply hot water with an temperature of not lower than 60°C to the unit coil and ensure that the water flow rate in the coil is not slower than 1 m/s. Drain all water or add anti-freezing solution if the unit is not to be operated after debugging (for details, refer to the maintenance and preservation of the coil). Warning: Improper debugging and maintenance may lead the coil to crack in low temperature. i.

Detect whether the motor insulation is qualified. Measure the motor insulation value before using. Note, discharge the wind after measurement immediately to avoid electric shock. If the insulation resistance cannot reach the related standard, dry the wind;

j.

Check the power supply voltage and the circuit connection. Inch the motor before officially launch it to ensure that the turning of the motor and fan is correct (the turning of fan should be consistent with the arrow direction specified on the fan).

6.2. Commissioning The unit can be started after the above checking procedure is completed. Check whether the running current of motor and unit sound is abnormal after the unit starts. Check the air flow, pressure of unit. Adjust the cooling capacity and humidification amount according to different working conditions. Check whether the fan speed exceeds the working speed stipulated on the fan nameplate. The following conditions are not considered abnormal: Noise: Noise is generated due to high speed air flow and the turning of fan and motor. Vibration: High speed turning of fan and motor generates vibration. It is normal that the noise and vibration do not exceed the value specified by relevant standard.

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7 Regular Maintenance Perform a good maintenance and preservation can reduce fault of running. The maintenance period of components see Chapter 8 (Recommend).

7.1. Mixing Box* a. Check the operation of damper mechanisms and adjust arms and damper blades for a proper position. b. Lubrication of bearings and connecting rod regularly c. Clear the damper regularly *Apply to modular air handling units and certain DDW series units only.

7.2. Filter Section* During system start up, filter are likely to become rapidly blocked. Disposable filters and bag filters must be replaced each time when pressure drop reaches the indicated dirty condition by Manometer. Washable filters must be cleaned periodically. The pressure drop indicated dirty is advised as following. Filter Specifications

Suggested Final Resistance (Pa)

G3

100~200

G4

150~250

F5~F6

250~300

F7~F8

300~400

F9~H10

400~450

H11~H13

400~600

*Apply to modular air handling units and certain DDW series units only.

7.3. Coil Section Periodic cleaning of coils is required. Clear the coil deposit regularly with low-pressure water hose or low-pressure air. Dry cleaning is done by using a powerful vacuum cleaner on the dust-accumulated side. Dirty coils have tendency to increase airside pressure drops and reduce cooling/heating efficiency. Ensure coil fins are not damage when performing dry/wet cleaning. Check that drain pan and drain trap are free from blockage and water accumulation at pan. Inspect and clean condensate pan to avoiding clogging of drainage of dirt, dust, etc. Inspect drainage piping to ensure the proper condensate flow. If humidifier is installed, check for build up of mineral deposits. Check that frost protection is working before starting of each winter season. Anti-freezing of Coil The daily operation cannot discharge the water from coil totally. Anti-freezing of coil consists of drying coil and washing coil with anti-freezing solution. The steps of drying coil are as follows: a. Shut off the water supply. Drain the coil, using vent and drain valves. This step requires opening of the header vent and removing the plug. b. Connect the blower to the return header of coil. Close vent and drain valve; c. Operate the blower for at least one-half hour and then check coil for dryness. This check may be made by

21

holding a mirror in front of the discharge from the coil. If water is still being removed, the mirror will become fogged. Continue to operate the blower until the coil is dry. d. Bump or jar the coil slightly during the blowing operation, if possible. This will free any water, that may be trapped and may also dislodge any dirt or scale which can trap water in the coil. Take care not to damage the coil. e. Allow the coil to stand for a few minutes after it is first blown out to give the moisture that adhered to the walls of the tube a chance to accumulate. Blow it out again and if any water comes out, repeat the blowing operation. f.

Leave drains open and all plugs out until the coil is returned to service.

The steps of washing coil with anti-freezing solution are as follows: To wash the coil with anti-freezing solution, a centrifugal pump with motor and a running piping holding anti-freezing solution and its container are required. The lowest temperature decides the concentration of anti-freezing solution. a. Shut off the water supply. Open the vents and drains provided to allow the coils to drain as complete as possible. b. Complete piping connections to the coil as shown in figure 3. Configure a throttling valve to the loop;

Figure 18 c.

With throttling valve and drain valves closed, start the solution pump and operate until air is vented from coil.

d.

Close air vent and open throttling valve about halfway. Circulate solution about 15 minute and then check the glycol solution strength .

e.

If the solution is too weak, add anti-freeze solution to bring it up to desired strength and again circulate through the coil for about 15 minutes.

f.

When the concentration of solution returning from the coils is found satisfactory, shut down the pump and drain anti-ffreeze from the coil.

g.

The same solution can be used for flushing additional coils, providing its concentration is maintained.

7.4. Fan and Motor a. Detect and clean to fan regularly to ensure nice running state of fan. b. Inspect for any obstructions or blockages at air intakes and discharges. c. Grease lubrication has been added to fan bearing and motor bearing when leaving factory. Motor bearing is closed and it is not required to add lubrication oil. Fans without bearing pedestal and there is bumper

22

rubber blanket, grease lubrication has been added to bearing and it is not required to add lubrication oil. Fans with bearing pedestal, add lubrication oil through nipple while lubrication oil exceeds the period of validity. The period of validity depends on grease type, rotate speed and working temperature of bearing. Regular detect the grease when using. When the grease eliminated is black and thick, which shows the oxidation of grease, change the lubrication oil and shorten the interval of changing. The recommended interval is 1000~2000 h. Note: Use only the lubricating oil with the same brand of the original one. The using of lubricating oil of another brand may cause bearing invalidation. d.

After running for a period of time, check the service condition of absorber. Determine whether the absorber can meet the shock absorption requirement according to practical running condition.

e. Regularly detect the bearing of fan and motor to see whether the bearing is loose. Fix the bolt on the bearing firmly. Detect the running condition by monitoring abnormal noises and vibrations. Stop the unit immediately when the abnormality happens. Then, find the cause and solve the problem. Install and replace the bearing with special tools, instead of knocking or prizing it with brute forces. f.

After running for a period of time, recheck the straightness of pulley and the tension of belt. Adjust and replace the pulley or belt in necessity.

g. Check whether the side of V pulleys of the fan and motor are on the same plane. Ensure the straightness of pulleys. Usually, the four-point method can be used to detect and adjust the straightness of pulley. (see Figure 19)

Figure 19 h. When changing the V belt, use the same brand V belt of the same model and ensure that the ribbon matches the race of pulley. i.

Detect and adjust the tension of V belt with a recognized belt tension gauge. (see Figure 20)

Measuring method: Measure the span Ls (mm) and calculate the bending ∆L: ∆L(mm) = Ls x 0.016. Extrude the tension gauge to bend the belt until the bending reaches ∆L. Then, read the tension gauge value and compare the value with those in the following table. Adjust the belt to a proper tension according to the comparison result.

Figure 20

23

Minimum tension load (unit: kgf/ pc of belt) SPZ/3V New product installation Re-adjustment SPA New product installation Re-adjustment SPB New product installation Re-adjustment SPC New product installation Re-adjustment

63~90 2.1 2.5 90~125 3.3 3.8 140~190 5.5 6.4 224~315 2.6 3.1

Belt diameter (mm) 91~125 126~160 2.6 2.8 3 3.2 Belt diameter (mm) 126~160 161~250 3.9 4.5 4.5 5.2 Belt diameter(mm) 191~236 237~315 6.2 6.9 7.2 8 Belt diameter(mm) 316~400 401~500 3 3.2 3.4 3.7

161~200 2.9 3.4 251~315 4.8 5.5 316~400 7.3 8.5 501~710 3.6 4.2

Notes: V pulley and its wheel are adjusted before leaving factory. check again before operation.; After running for 48 hours, re-adjust the tension of V belt to a proper value; After running for a month, re-adjust the tension of V belt; Interval check should be implemented every 3 months. Warning: Over tension toward drive belt will cause premature failure of belt and bearing.

7.5. Silencer Section* Regularly detect the silencer. Clean and replace it if damage or corrosion happens. Clean the muffler with a vacuum cleaner. Note: Do not damage the mute cotton in the muffler.

7.6. Electric Heater Section* Regularly detect whether the protector of electric heat section and fan section is valid.(DPS, temperature controller and fuse) Regularly clean the surface of electrical heating.

Note: Do not touch the surface of electrical heating to avoid being scratched or burnt.

7.7. Checking Section* The unit can be maintained through the access door. Open the access door by following the direction identified on the door. Note: Close and lock the access door after detection to prevent entrance of other people or object by accident.

7.8. Others For details about other components (such as the humidifier, transducer and heat runner), see the attached components introductions. *This functional section is available to only modular air handling units.

24

8 Maintenance Plan of Units (Recommend) Parts

Fan/motor

Inspection Item Fan in general

Check/Clean

Fan bearing

Check/Clean/ Greasing

Motor in general

Check/Clean

Motor bearing

Check

Motor Temperature

Check/Repair/ Replace fan

Belt drive tension

Check/ Re-tension

V belt

Detection/Clean/ Greasing

Corrosion damage

Coil Section

Maintenance Measure

Maintenance interval Weekly Monthly 3 Monthly 6 Monthly Yearly √ √ √ √ √ √ √

and Check/Treat/ Repair

√ √

S Bolt & nut secure

Check/Tighten

Excessive vibration

Check/Reset

√

Flexible connection

Check/Tighten

√

Vibration isolator

Check/ Adjustment

Blocking of duct

Check/Clean

Fin block

Check/Clean

Frost protection

Check/Apply

Drain trap clog

Check/Clean

Corrosion

Check/Treat/ Repair

Leakage

Check/Repair

√ √ √ √ √ √ √ √

Bolts & nuts secure Check/Tighten

Filter

Resistance (Washable)

Check/Clean

Resistance (Disposable)

Check/Change

Eliminator* Dirt accumulation

Check/Clean

Silencer*

Check/Clean

Health/corrode

Dirt retention Heat exchanger* Sealing strip Electric heater *

Trebling protection

√ √ √ √ √

Check/Clean Check/Change

√

Check/Repair

√

Electric heater tube Check/Clean

*This functional section is available to only modular air handling units.

√

25

9 Trouble-shooting Common Failure

Abnormal sound

Location

1. Impeller

2. Gearing

Possible Causes The impeller is eccentric. The gap between bearings is too large so that the connection is loose. The impeller is loose. The connection between the roller and bearing is loose. The impeller is damaged. The fan fastening bolt is loose. Sundries exist in fan. Pulley is not fixed on roller. V belt is loose, and is adjusted in 48 hours after the first running. V belt is too tight. Improper model of V belt is used. Lengths of V belts in a unit where multiple V belts are uses are different. Fan V pulley and motor V pulley are not aligned. V belt is damaged. Bolts on the motor and those fastening the motor cabinet are loose.

3. Bearing

The bearing fails. There is a lack of lubricating oil. The bearing cabinet is loose. Installation is not straight. Sundries exist in the bearing. The bearing is damaged. The bearing gets rusty.

4. Fan volute

There are sundries in the volute. The volute is loose. The inlet air volute is damaged.

5. Electrical part

The accessing cables are loose. Motor or relay generates hum supply noise. Three-phase machine supplies single-phase electricity.

6. Roller

The roller is bent or deformed. The counterbalance is loose. The roller is loose.

7. Excessive wind speed

Air pipe is too small. Static pressure is lower than design value in practice. The opening of air valve is small.

Solutions Contact the dealer. Contact the dealer. Contact the dealer. Contact the dealer. Contact the dealer. Fasten the bolt. Remove the sundries. Fasten the pulley. Adjust the V belt. Adjust the V belt. Replace the V belt. Replace the V belt and make sure all the V belts are of the same length. Justify the V pulleys. Replace the V belt. Fasten the bolt. Replace the bearing. Add lubricating oil. Fasten the bearing cabinet. Perform re-installation. Remove the sundries. Replace the bearing. Remove the rust or replace the bearing. Remove the sundries. Contact the dealer. Contact the dealer. Fasten the accessing cables. Contact the dealer. Supply three-phase electricity. Replace the roller. Fasten the counterbalance. Fasten the roller. Adjust the air pipe. Adjust the system. Enlarge the opening of the air valve.

26

8. Periodicity Vibration

Air pipe is too small. The return air valve or mixed air valve is loose. The system is unstable. Air pipe vibrates with the pulsation of fan.

9. Noise caused when high speed Air leaks from the air pipe. wind flows through gaps and holes The air valve is loose. The air valve is not closed tightly. The turn of the air pipe is not smooth. 10. Gurgle sound The air pipe is abruptly extended or or harsh squealing shrinks. generated when Wind speed in the air pipe is too large. high speed air is The anti-vibration pad (vibration blocked attenuation contact) is too tight. Effective vibration isolation measure is not taken for vibration components.

Insufficient air output although the fan runs normally

Fasten the air valve. Replace the air valve. Adjust the air pipe. Adjust the air pipe. Adjust the air pipe. Adjust the anti-vibration pad. Add vibration isolation device.

1. Fan

Contact the dealer. Adjust the phase sequence of power supply.

2. Ventilation pipe system

Practical resistance is lower than the design resistance. Air valve is closed. Air pipe seals improperly. FRD is closed.

Adjust the system. Open the air valve. Add sealant. Open the FRD.

3. Filter

The filter is dirty or even blocked.

4. Coil

2. Air duct

The filter is dirty or even blocked. Outlet and inlet area of the fan are not clearly distinguished. The wind flows from the outlet area directly to the inlet area through the loosely connected separation. Return air place is bend, and the fan port and unit wallboard are too close. There are obstacles in fan port. The capacity of fan can be reduced if no straight pipe is used. There are obstacles in the fan outlet. There is a bend in the fan outlet. The size of air pipe is improper. The access door is open. The system is not balance. Practical resistance is lower than the design resistance. Air valve or vanes are not installed. Filter falls off (or is not installed). Leakage exists in return air pipe.

1. Filter

The filter is dirty.

2. Fresh air

Fresh air output is insufficient.

5. Short cut of airflow

7. No straight pipe at fan outlet 8. Obstacles in the wind system

Stale air in the air-conditioned room

Add sealant.

The impeller is installed incorrectly. The impeller rotates reversely.

6. Blocked fan inlet

Excessive air output although the fan runs normally

Adjust the air pipe. Fasten the air valve. Adjust the system. Adjust the fan speed.

1. System

Clean or replace the filter. Clean the coil. Add a wind-separating board. Move the fan. Remove the obstacles. Install the straight pipe. Remove the obstacles. Adjust the air pipe. Adjust the air pipe. Close the access door. Adjust the system. Install the air valve or vanes. Reinstall the filter. Add sealant. Clean or replace the filter. Increase the fresh air output.

27

10 After-sales Service Warranty 10.1. After-sales Service To repair or maintain, please contact your dealer firstly. Improper repair or maintenance may cause leakage, electric shock or fire. To move and reinstall the unit, contact your dealer firstly. Improper installation may cause leakage, electric shock or fire When requiring repairmen, please provide the following details: Model (see the nameplate or warranty application form); Factory number and date of installation (for details, see the warranty application form); Details of the failure(s); Your name, full address and telephone number. Repair after the Warranty Period Expires Please contact your dealer. Chargeable service will be provided if the dealer can repair the unit. Checking and maintenance After several seasons’ operation, the units’ performance will be decreased because of dirt or dust accumulated inside units. Besides the owner’s daily maintenance, it is suggested to sign a contractor with maintenance with distributor or manufacturer. As for the details of service, please contact with distributor. Enquiry Any question about after-sales service please contact distributor.

10.2. Warranty A warranty application form is attached. The dealer will give you the warranty application form after filling in necessary items. Please keep warranty application form after checking the content. Warranty Period The product is warranted for one year since the date of purchase. For details, see the warranty application form. During the guarantee time, any services are free if presented warranty application Otherwise, you will be charged for the costs.

28

11 Repair and Maintenance Record The fault diagnosis and troubleshooting process should be described in details as possible. For details about troubleshooting, refer to Chapter 9 “Common Failure and Solution of Unit". Stop running the unit and cut the power when a failure is unclear. Consult the local dealers before further processing. Please properly keep the record. Model:

__________________________

Factory Number:___________________________ No.

Failure Description

Troubleshooting

Result

Recorded by

1

2

3

4

5

6

7

8

9

10

DAIKIN INDUSTRIES, LTD. Head Office: Umeda Center Bldg., 2-4-12, Nakazaki-Nishi, Kita-ku, Osaka, 530-8323 Japan

Recorded at

29

Appendix 1: Dimensions For DDW Frameless Unit 1. UnitSingle-fan Horizontal Unit

J

L F

S

D

S

N

D

N

F

45 Q

28.5

45

L Q

28.5

J

2. Double-fan Horizontal Unit

Hanging Holes 4-φ 15

Hanging Holes 4-φ15

F

F

S

D

D

A M M+60

S A M M+60 G

Air Vent

G

Air Vent

E

E Water Outlet

K E

K

Water Inlet

G

Water Inlet

P

I

G

I

C

E

H

Water Outlet

C

H

40

50

40

B

90

B

90

Condensation Pipe R1-1/4

Condensation Pipe R1-1/4

Table 1 Dimension

L

W

H

Model

A

B

C

DDW020H

900

960

DDW030H DDW040H

Unit: mm

Outlet Dim

Pipe Fix Dim

Inlet Dim

Hanging Hole Dim

Table 2 Dimension

L

W

H

Base

Model

A

B

C

P

97

242

625 130 109 109 82.5 137.5 1598 790 1810 1113

97

248

752 127 109 109 82.5 137.5 1598 910 1810 1113

50

292 375 407 222

97

237

863 137 123 109 110 137.5 1848 1040 2060 1113

DDW180H 2120 1310 1240

50

341 432 481 164

100

317

926 139 124 110 110 137.5 2028 1100 2240 1253

660 1440 1093

DDW200H 2300 1310 1240

50

456 559 481 111

100

314

926 135 124 110 110 137.5 2207 1100 2420 1253

660 1800 1093

DDW250H 2400 1310 1430

50

456 559 481 111

100

309 1104 143 124 110 110 137.5 2307 1290 2520 1253

DDW300H 2766 1646 1549

63

449 569 569 278

203

---

---

---

DDW350H 2766 1646 1709

63

449 569 569 278

203

---

---

185 164 150 110 137.5 2683 1556

---

---

DDW400H 2926 1646 1869

63

500 638 638 266

200

---

---

182 174 160 110 137.5 2843 1716

---

---

DDW450H 2926 1646 2029

63

500 638 638 262

200

---

---

182 174 160 110 137.5 2833 1876

---

---

97

208 256 123 109 82.5 137.5

808

460 1020

903

DDW100H 1690 1170 930

50

286

97

203 319 123 109 82.5 137.5

958

510 1170

943

DDW120H 1690 1170 1050

50

1080 1100 730 398 344

235

97

204 434 127 109 82.5 137.5

988

590 1200 1043

DDW150H 1940 1170 1180

DDW050H

1250 1060 730 398 344

319

97

217 434 127 109 82.5 137.5

1158

590 1370 1003

DDW060H

1320 1150 800 473 407

324

97

240 498 128 109 82.5 137.5

1228

DDW080H

1680 1150 800 473 407

532

97

237 498 128 109 82.5 137.5

1588

I

Q

L (4R)

Note: Air outlets with dotted lines are for units with fan top outlet. FI* and TI* means the fan discharge arrangement.

L (6R)

J

K

M

N

D

S

E

F

H

I

Q Q L L (4R) (6R) (4R) (6R)

Hanging Hole Dim

292 375 407 104

192

H

Inlet Dim

292 375 407 70

600 300 265

1050 1000 650 333 292

G (TI*)

Pipe Fix Dim G (TI*)

G (FI* )

E

Outlet Dim G (FI* )

F

D

Unit: mm

J

K

1167 191 154 140 110 137.5 2683 1396

M

N

30

3. Single-fan Vertical Unit

J

45

Q

J

D

F

E

G

D

N

40

G

40

L

L

Q

45

4. Double-fan Vertical Unit

D

F

E

Air Vent

Air Vent

C

Water Outlet

K

K

H

H

C

Water Outlet

Water Inlet

I

I

Water Inlet

L

W

H

90

Condensation Pipe R1-1/4

Condensation Pipe R1-1/4

Table 3 Dimension

A

90

B

63

B

63

A

Table 4

Unit: mm

Outlet Dim

Pipe Fix Dim

Model

A

B

C

D

E

F

G

H

I

Q (4R)

DDW040V

Inlet Dim

Dimension

L

W

H

Unit: mm

Outlet Dim

Pipe Fix Dim

Q (6R)

L (4R)

L (6R)

J

K

Model

A

B

C

D

E

F

G

N

H

Inlet Dim

I

Q (4R)

Q (6R)

L (4R)

L (6R)

J

K

980

650

1283

333

292

149

195

498

127

181

181

82.5

137.5

888

655

DDW150V

2090

900

1673

473

407

151

167

382

736

138

194

180

110

137.5

1997

902

DDW050V 1140

650

1343

397

343

86

267

498

129

180

180

82.5

137.5 1048

649

DDW180V

2240

900

1923

430

481

107

269

342

863

137

196

182

110

137.5

2147

1035

DDW060V 1210

650

1403

397

343

93

335

561

128

179

179

82.5

137.5 1118

709

DDW200V

2320

900

1983

559

481

112

140

465

926

137

204

190

110

137.5

2227

1095

DDW080V 1320

810

1613

473

407

88

329

688

132

177

177

82.5

137.5 1228

842

DDW250V

2670

900

2043

559

481

88

267

456

976

141

193

179

110

137.5

2577

1155

DDW100V 1390

900

1853

559

481

114

259

815

129

189

189

82.5

137.5 1297

965

DDW120V 1530

900

1923

559

481

115

337

879

130

179

179

82.5

137.5 1437

1035

31

Appendix 2: Dimensions For DDW Frame Unit 1. Single-fan Horizontal Unit

2. Double-fan Horizontal Unit J

46

45 Q

S

S

D

N

N

F

L

L 137

25

25

J

Hanging Holes 4-φ15 Hanging Holes 4-φ15

F

S

S

D A

F

D

M

A M M+60

M+60

40

Air Vent G

Water Outlet

K

C G

K

Water Inlet

I

I

C

Water Inlet

G E

H

H

Air Vent

E

Water Outlet

E

E

40

G

50

Unit: mm

L

W

H

Outlet Dim

Pipe Fix Dim

Model

A

B

C

D

E

F

G (FI* )

G (TI*)

H

I

90

Condensation Pipe R1-1/4

Table 1 Dimension

B

P

90

B Condensation Pipe R1-1/4

Table 2

Inlet Dim

Hanging Hole Dim M

L (4R)

L (6R)

J

K

N

Dimension

L

W

H

Base

Model

A

B

C

P

Unit: mm

Outlet Dim D

S

E

F

Pipe Fix Dim

G (FI* )

G (TI*)

H

I

Q Q L L (4R) (6R) (4R) (6R)

Inlet Dim J

K

Hanging Hole Dim M

N

960

600

300

265

191

366

462

256 158

82.5

137.5

808

460

1020 910

DDW100H 1690 1170 970

50

292 375 407 102

508

658

625 164 137 137 82.5 137.5 1598 790 1810 1120

DDW030H 1050 1000

650

333

292

286

393

512

320 158

82.5

137.5

958

510

1170 950

DDW120H 1690 1170 1085

50

292 375 407 102

508

658

752 164 137 137 82.5 137.5 1598 910 1810 1120

DDW040H 1080 1100

765

398

344

235

445

557

434 164

82.5

137.5

988

590

1200 1050

DDW150H 1940 1170 1215

50

292 375 407 223

508

658

863 172 150 137 110 137.5 1850 1040 2060 1120

DDW050H 1250 1060

765

398

344

319

445

574

434 164

82.5

137.5 1158

625

1390 1010

DDW180H 2120 1310 1275

50

341 432 481 165

586

785

926 172 150 137 110 137.5 2028 1100 2240 1260

DDW060H 1320 1150

839

473

407

324

508

646

498 164

82.5

137.5 1228

660

1440 1100

DDW200H 2300 1310 1275

50

456 559 481 107

586

805

926 172 150 137 110 137.5 2207 1100 2420 1260

DDW080H 1680 1150

839

473

407

530

508

646

498 164

82.5

137.5 1588

660

1800 1100

DDW250H 2400 1310 1465

50

456 559 481 111

586

805

1104 178 150 137 110 137.5 2307 1290 2520 1260

DDW300H 2766 1646 1549

63

450 569 569 277

772

891

1167 191 152 137 110 137.5 2683 1390

DDW350H 2766 1646 1709

63

450 569 569 277

772

891

---

DDW400H 2926 1806 1869

63

500 638 638 271

841

1046

---

DDW450H 2926 1806 2029

63

500 638 638 271

841

1046

---

DDW020H 900

Note: Air outlets with dotted lines are for units with fan top outlet. FI* and TI* means the fan discharge arrangement.

---

---

185 152 138 110 137.5 2683 1550

---

---

185 152 138 110 137.5 2827 1710

---

---

185 152 138 110 137.5 2827 1870

---

---

32

3. Single-fan Vertical Unit 137 G

D

E

40

LQ

L

J

F

D

N

G

D

E

F

40

J

4. Double-fan Vertical Unit

Water Outlet Water Outlet

Air Vent

C K

H

K

H

C

Air Vent

Water Inlet

I

I

63

63

Water Inlet

90

A

A

90

B

B

Condensation Pipe R1-1/4

Condensation Pipe R1-1/4

Table 3 Dimension

L

W

H

Unit: mm

Outlet Dim

Pipe Fix Dim

Inlet Dim

Model

A

B

C

D

E

F

G

H

I

L (4R)

J

K

DDW040V

980

650

1346

333

292

143

197

498

164

82.5

137.5

888

655

DDW050V

1140

650

1403

398

344

79

262

498

164

82.5

137.5

1048

687

DDW060V

1210

650

1460

398

344

79

332

561

164

82.5

137.5

1118

DDW080V

1320

810

1673

473

407

85

330

688

164

82.5

137.5

1228

DDW100V

1390

900

1933

559

481

111

257

815

164

82.5

137.5

1397

1014

DDW120V

1530

900

2010

559

481

114

332

879

164

82.5

137.5

1437

1070

L (6R)

Table 4 Dimension

L

W

H

Unit: mm

Outlet Dim

Pipe Fix Dim

Inlet Dim

H

I

Q (4R)

473 407 152 595 384

736

172

151

137

110

137.5

1997

902

432 481 109 768 341

863

172

151

137

110

137.5

2147

1035

2048

559 481 111 606 456

926

172

151

137

110

137.5

2227

1109

2108

559 481

829 456

977

178

151

137

110

137.5

2577

1155

1006

2555

569 569 131 900 450

1167

150

111

97

110

137.5

2683

1390

2766

1006

2715

569 569 131 900 450

---

144

111

97

110

137.5

2667

1550

DDW400V

2926

1166

3035

638 638 171 883 500

---

144

111

97

110

137.5

2827

1710

DDW450V

2926

1166

3195

638 638 171 874 500

---

144

111

97

110

137.5

2827

1870

Model

A

B

C

DDW150V

2090

900

1746

DDW180V

2240

900

1978

740

DDW200V

2320

900

842

DDW250V

2670

900

DDW300V

2766

DDW350V

D

E

F

87

G

N

Q (6R)

L (4R)

L (6R)

J

K

33

Appendix 3: Dimensions For FUW-H/V Unit 1. Horizontal Unit

2. Single-fan Vertical Unit

J

D

82

F

N

N

E

T

R

L

30

55

44

Hanging Holes 4-φ12

J M

S

Water Inlet

Terminal Box

26

Water Outlet

G E

C

H

Air Vent

38

D B M-50 M

K

S

F

Condensation Pipe R1-1/4

Q

35

I

Terminal Box

50

A

C

X

Water Outlet Water Inlet

W

H

Model

A

B

C

Outlet Dim

Pipe Fix Dim

Inlet Dim

Hanging Hole Dim

81

L

145

Unit: mm Dimension

K

1

H

Table

G

D

S

E

F

G

X

H

I

T

L(4R) L(6R)

J

K

Q

R

M

N

FUW020H 950 800 468

-

238 265 170 326

30

294 118 266

66

110

680

393 25

198 940 554

FUW030H 950 1040 468

-

302 265 313 326

30

294 118 266

66

110

920

393 25

198 1180 554

FUW040H 950 1300 468 180 235 265 244 326

40

294 118 266

66

110

1180 393 25

198 1440 554

FUW050H 950 1550 468 238 301 265 244 326

40

294 118 266

66

110

1430 393 25

198 1690 554

FUW060H 950 1800 468 238 301 265 367 326

40

294 118 266

66

110

1680 393 25

198 1940 554

T B

78

L

A

50

R

Condensation Pipe R1-1/4

Table 2 Dimension

L

Model

A

W

H

B

C

Unit: mm

Outlet Dim D

E

F

Pipe Fix Dim H

G

Inlet Dim

L(4R) L(6R) T(4R) T(6R)

Length

Hanging Hole Dim

J

K

R

M

N

585 1082 335 293 200 446 182

66

110

236

192

840

592

1055

968

520

FUW080H 1000 1800 606 242 311 343 349 407

40

392 118 303

138

138

1696 538 35

132 1940 755

FUW040V 935

FUW100H 1000 2180 606 242 311 343 658 407

40

392 118 303

138

138

2076 533 35

132 2320 755

FUW050V 1135 655 1320 395 341 254 546 152

66

110

326

282

1040 692

1255

1168

590

FUW120H 1050 2270 697 291 376 407 614 469

40

456 118 303

138

138

2164 612 35

132 2410 848

FUW060V 1135 655 1320 395 341 254 546 152

66

110

326

282

1040 692

1255

1168

590

FUW150H 1050 2490 723 381 474 407 580 470

40

519 118 303

138

138

2386 648 35

132 2630 848

Note: Upward table “4R” means 4 rows and “6R” means 6 rows. If D value is“-”means single-fan unit which only has one outlet.

Note: Upward table “4R” means 4 rows and “6R” means 6 rows.

34

4. Double-fan Vertical Unit 24

225

S

D

S

105

D

102

F

N

N

E

E

24

3. Single-fan Vertical Unit

J

1980

M

25

M

44

20

Terminal Box

Terminal Box

C

Water Outlet

K

H

K

H

C

Water Outlet

269 G

T

L

B

P

200

50

Q

200

176

Water Inlet

189

269

Water Inlet

P

A R

482 83

T

L

P

B

200

50

Q

200

A R

Condensation Pipe R1-1/4

72

Condensation Pipe R1-1/4

Table 3 Dimension

L

W

H

Model

A

B

C

Outlet Dim D

E

F

Unit: mm Pipe Fix Dim

H

G

L L T T (4R) (6R) (4R) (6R)

Inlet Dim J

K

Length R

Table 4

Base M

N

P

Q

Dimension

L

W

H

Outlet Dim

Model

A

B

C

S

D

E

Unit: mm

Pipe Fix Dim H

L L T T (4R) (6R) (4R) (6R)

Inlet Dim J

K

Length L

Base M

N

P

Q

FUW080V 1350 736 1676 471 404 281 720 182

83

137 343 288 1256

873

1493 1400 675 197 500

FUW180V 2124

955 2070 476 382 406 1077

83

137 224 180 2032 1253

2247

2175 907 334 1003

FUW100V 1350 736 1676 471 404 281 720 182

83

137 343 288 1256

873

1493 1400 675 197 500

FUW200V 2124

955 2070 476 382 406 1077

83

137 224 180 2032 1253

2247

2175 907 334 1003

FUW120V 1774 956 2036 561 482 483 950 480

83

137 228 184 1680 1112 1902 1826 907 334 655

FUW250V 2476

955 2191 561 454 478 1077

83

137 224 180 2379 1253

2597

2525 907 660

FUW150V 1774

83

137 228 184 1680 1112 1902 1826 907 334 655

956 2036 561 482 483 950 480

Note: Upward table “4R” means 4 rows and “6R” means 6 rows.

Note: Upward table “4R” means 4 rows and “6R” means 6 rows.

701

35

Appendix 4: Dimensions For FUW-A Unit

Table 1

Table 2

Unit: mm

Unit: mm

Dimension

W

Inlet Dim

Outlet Dim

Hanging Hole Dim

Dimension

W

Inlet Dim

Outlet Dim

Hanging Hole Dim

Model

A

B

C

D

Model

A

B

C

D

E

FUW015A

750

540

235

667

FUW030A

1220

1010

265

170

1137

FUW020A

910

700

315

827

FUW035A

1370

1160

320

210

1287

FUW025A

1070

860

395

987

FUW040A

1520

1310

330

340

1437

FUW050A

1850

1640

395

540

1767

36

While utmost care is taken in ensuring that all details in the publication are correct at the time of going to press, we are constantly striving for improvement and therefore reserve the right to alter model specifications and equipment without notice. Details of specifications and equipment are also subject to change to suit local conditions and requirements and not all models are available in every market.