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·

If the fuses burn up, please call the authorized service dealer. Please do not replace it by yourself, as it may 

    result in accident or electric shock.
(1) Remove the screws and the electric box cover as shown in the Fig. 6.1.
(2) Pass connection cable and wired controller cable through the two holes on the conduit panel.
(3) Fasten the conduit connection to the conduit panel using the lock nut.
(4) Connect the connection cable and wired controller cable to the terminal.
(5) Tie the cable in the electric box with the clamp tightly.
(6) After completing the wiring, seal the wiring hole with the sealing material (with the lid) to prevent the 
     condensation and insects entering the control box.
(7) Put the electric box cover back after completion of the work.

12

Installation and Maintenance

WARNING

6. Electrical Wiring

 

·

When clamping the wiring, use the included clamping material to prevent external pressure being exerted on

    the wiring connections and clamp firmly.

·

While performing wiring work, make sure the wiring is proper and does not cause the control box lid to

    stick up, then close the cover firmly. When attaching the control lid, make sure you do not pinch any wires.

·

Outside the indoor unit and outdoor unit, separate the weak wiring (remote controller and transmission wiring)

    and strong wiring (ground and power supply wiring) at least 2 in. (50mm) so that they do not pass through the 
    same place together. Proximity may cause electrical interference malfunction and breakage.

CAUTION

6.1 

 

General Check

Electric box

Electric box

Electric box cover

Electric box cover

Wired controller cable

Wired controller cable

Fig.6.1

Conduit connection

Conduit connection

Connection cable

Connection cable

Conduit panel

Conduit panel

Lock nut

Lock nut

9K~18K

24K~36K

Summary of Contents for 24K-36K

Page 1: ......

Page 2: ...Safety Notice 6 2 Tools and Instruments for Installation 7 3 Installation of the Indoor Unit 7 3 1 Initial Check 7 3 2 Installation 8 4 Refrigerant Pip e 10 4 1 Pip Material e 10 4 2 Piping Connection 10 5 Condensate drain piping 11 6 Electrical Wiring 12 6 1 General heck 1 C 2 6 2 Change of Static Pressure 13 6 3 Electrical Installation 14 7 Trial un R 14 ...

Page 3: ...here this product is installed must have the reliable electrical grounding facility and protection Please do not connect the grounding of this product to various kinds of air feeding ducts drain piping lightning protection facility as well as other piping lines to avoid receiving an electric shock and damages caused by other factors Wiring must be done by a qualified electrician All the wiring mus...

Page 4: ...ion manual The method of connection of the appliance to the electrical supply and interconnection of separate components is detailed in below part The wiring diagram with a clear indication of the connections and wiring to external control devices and supply cord is detailed in below part The cord of the H07RN F type or the electrically equivalent type must be used for power connection and interco...

Page 5: ...quid 4 Refrigerant pipe Gas 5 Drain pipe Connect with pump 6 Drain pipe 7 Air outlet 9K 18K 24K 36K Remote Controller Optional You can control the air conditioner with the wired or wireless remote controller It is used for power ON OFF setting the operation mode temperature fan speed etc There are different types of remote controllers that can be used Operation instruction will be further specifie...

Page 6: ...nd the fan speed resume Discharging the residual heating air When stopping the air conditioner in normal operation the fan motor will run with low speed for a while to blow out the residual hot air Auto restart from power outage When the power supply is recovered after power outage all presets still be in effect and the system will run according to the previous settings If the trouble issue persis...

Page 7: ...When the mode set at one or more indoor unit is different from the mode that outdoor unit is using mode interfere will occur cooling dry heating fan cooling normal dry mode interfere heating fan Outdoor units always use the mode of the first indoor unit that started operation When mode interfere occurs the unit in interference will emit 3 beeps and turn off automatically ...

Page 8: ...of wires for electrical connections between the indoor and outdoor units Firmly clamp the interconnecting wires so their terminals receive no external stresses Incomplete connections or clamping may cause terminal overheating or fire After connecting all the wires be sure to fix the cables so that they do not put undue force on the electrical covers or panels Install covers over the wires incomple...

Page 9: ...l Standard screwdriver Vacuum pump Charge hose Pipe bender Adjustable wrench Pipe cutter Cross head screwdriver Number 8 9 10 11 12 13 14 Tool Leveler Hammer Drill Knife or wire stripper Pipe expander Inner hexagon spanner and torque wrench Measuring tape 12 300 or more Maintenance space 24K 36K 3 4 20 or more Ceiling H 15 3 4 400 98 1 2 2500 or more Floor surface 9K 18K Fig 3 1 1 unit in mm 1 Res...

Page 10: ...revent electromagnetic interference Noise may be generated depending on the conditions under which the electric wave is generated even if a 3 3ft allowance is maintained Do not install the indoor unit in a machine shop or kitchen where vapor from oil or its mist flows to the indoor unit The oil will deposit on the heat exchanger thereby reducing the performance of the indoor unit and in severe cas...

Page 11: ... and apply the thread locker on the suspension to prevent the nuts from loosening 1 During the installation please cover the unit with plastic cover to keep it clean 2 Make sure that the unit is installed level by using a level or a plastic pipe filled with water Adjust the top surface of the unit to the surface of the water at both ends of the plastic pipe and adjust the unit horizontally If the ...

Page 12: ...m with the insulation material Fig 4 4 Piping insulation procedure Installation and Maintenance DANGER The pipe goes through the hole with the seal CAUTION Do not place the pipes on the floor directly Fig 4 3 Tightening torque for the nut Clamp attached Insulation attached Refrigerant pipe field supplied Side of the indoor unit Insulation field supplied Fig 4 2 The pipe diameter 9K 18K Ref gas pip...

Page 13: ...uld be insulated because condensation may happen there causing water leakage 1 Drain piping passing indoors 2 Drain sockets Referring the figure below insulate the drain socket and drain hose using the included large sealing pad Drain piping connections Do not connect the drain pipes directly to sewage pipes Ammonia in the sewage might enter the indoor unit through the drain pipes and corrode the ...

Page 14: ...ance WARNING 6 Electrical Wiring When clamping the wiring use the included clamping material to prevent external pressure being exerted on the wiring connections and clamp firmly While performing wiring work make sure the wiring is proper and does not cause the control box lid to stick up then close the cover firmly When attaching the control lid make sure you do not pinch any wires Outside the in...

Page 15: ...ssues Fig 6 2 The static pressure can be adjusted using wired controller 6 2 Change of Static Pressure Model Capacity Btu h The Range of Static Pressure Function Code Set 9K 12K 18K 0 0 20 in H O 2 0 50Pa 0 50 function code value equals static pressure value more than 50 is 0 20 in H O 50Pa 2 default 0 0 18 in H O or 45Pa 2 24K 0 0 40 in H O 2 0 100Pa 0 100 function code value equals static pressu...

Page 16: ...han 194 90 14 7 Trial Run Please perform trial run according to outdoor unit installation manual Model Capacity Btu h Transmission Cable Size 9K 36K 4 16AWG Note 1 Follow local codes and regulations when select field wires and all the above are the minimum wire size 2 Use copper supply wires 3 When transmission cable length exceeds 49 ft 15m a larger wire size should be selected 4 Install main swi...

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Page 52: ...Version No 2021669 F WESTINGHOUSE and INNOVATION YOU CAN BE SURE OF are trademarks of Westinghouse Electric Corporation Used under license by FUJITSU GENERAL AMERICA INC All Rights Reserved ...

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