INSTALLATION MANUAL SPLIT SYSTEM HEAT PUMP MODELS Air Handling Unit FTQ18PBVJU FTQ24PBVJU English FTQ30PBVJU FTQ36PBVJU FTQ42PBVJU Français Español Read these instructions carefully before installation. Keep this manual in a handy place for future reference. This manual should be left with the equipment owner.
SPLIT SYSTEM HEAT PUMP Installation manual CONTENTS • Do not ground units to water pipes, gas pipes, tele- phone wires, or lightning rods as incomplete grounding 1. SAFETY CONSIDERATIONS ........... 1 can cause a severe shock hazard resulting in severe 2.
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If the refrigerant than those specifi ed by Daikin are used, fi re or explo- is charged in a state of gas, its composition can change sion may occur.
• Take adequate measures to prevent the outdoor unit Be sure to check the type of R410A refrigerant to be used from being used as a shelter by small animals. Small before installing the unit. animals making contact with electrical parts can cause (Using an incorrect refrigerant will prevent normal opera- malfunctions, smoke, or fi...
FOR THE FOLLOWING ITEMS, TAKE SPECIAL CARE SELECTING INSTALLATION SITE DURING CONSTRUCTION AND CHECK AFTER INSTALLATION IS FINISHED. CAUTION • If you think the humidity inside the installation space might a. Items to be checked after completion of work exceed 86°F and RH80%, reinforce the insulation on the unit body.
If installed horizontally PREPARATIONS BEFORE INSTALLA- TION AND INSTALLATION (Front view) When installing the product, refer to “3. SELECTING Air inlet Air outlet INSTALLATION SITE” and consider the product size as shown Fig. 2 and Table 1. (Side view) Fig. 2 24 or more 13-1/16...
Condensation may form on the product during COOL If installed horizontally operation. Be sure to provide (fi eld supplied) and install a second drain pan. If installed vertically Level Secure the unit fi rmly to prevent it from falling. REFRIGERANT PIPING WORK 〈Observe the requirements listed below for refrigerant piping sizes.〉...
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• Refer to Table 2 for the processing dimensions of the Refer to the illustration on the right-hand side and be sure fl are. to perform heat insulation work on the piping joints after • Use the fl are nut provided with the unit. gas leakage checks.
• When brazing the refrigerant piping, perform nitrogen re- In case of horizontal installation placement fi rst, or perform the brazing while feeding nitro- gen into the refrigerant piping. (Refer to Fig. 6) Pressure-reducing valve Part to be brazed Taping Nitrogen hands valve...
〈PRECAUTIONS〉 <When bending the end> Drain piping connections Bend the end to avoid Metal clamp (4) • Do not connect the drain piping directly to sewage piping tearing the Sealing (accessory) Main unit that smell of ammonia. The ammonia in the sewage might pad (large) (9).
WIRING EXAMPLE DANGER • Do not ground units to water piping, telephone wires or HOW TO CONNECT WIRINGS lightning rods because incomplete grounding could cause a severe shock hazard resulting in severe injury or death, nor 〈Precautions when laying power supply wiring〉 to gas piping because a gas leak could result in an explo- •...
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Remove the front panel (upper). Transformer High-voltage hole Top panel Terminal block Low-voltage hole <FTQ18,24,30,36PBVJU models> Terminal block Remove the electric component box cover. Transformer Terminal block <FTQ42PBVJU model> Fig. 8 Terminal block Changing the transformer wire connection Connector (Connect the wire to the 208V terminal. Be sure to insert the wire securely until a clicking sound is produced.) Wire (Red)
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How to use insulation tube. • Outside the air conditioners, separate the low voltage wiring • Use the insulation tube to cover the wiring. (remote controller and transmission wiring) and high voltage • Joint the insulation tube with the tape and cut off the tube wiring (ground wire and power supply wiring) by at least 5 in.
When using 2 remote controllers for 1 indoor unit. REMOTE CONTROL (FORCED OFF AND ON/ OFF OPERATION) Power supply 208/230V • Connect input lines from the outside to the terminals T ¹ and Outdoor unit T ² on the terminal block (6P) for remote controller to achieve 60Hz Control box remote control.
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10-1 SETTINGS WHEN USING THE OPTIONAL RE- 10-3 SETTING THE FILTER SIGN DISPLAY INTERVAL MOTE SENSOR • Explain the following to the customer if the fi lter dirt settings have been changed. This product does not include an air inlet thermistor. •...
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10-5 INSTALLATION OF AN AIR FILTER Connect the wires • Run the wires through the low-voltage hole. Take off the part on the bottom of the front panel. • Connect the wires to the terminal block (10P) of the product. The terminal Nos. for wire connection are shown below.
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10-7 SETTINGS FOR SEPARATELY SOLD ACCES- SORIES • See the instruction manuals included with optional accesso- ries for the necessary settings. 〈When using a wireless remote controller〉 • A wireless remote controller address needs to be set when using a wireless remote controller. See the installation manual included with the wireless remote controller for details on how to make the settings.
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1645 Wallace Drive, Suite 110 Carrollton, TX 75006 USA info@daikinac.com www.daikinac.com 3P250363-4C EM11A011 (1201) HT...