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FDQ125C7VEB
Split System air conditioners
4PW71105-1 – 08.2011

Installation manual

8

5

When the air conditioning unit has stopped, check on an indoor
unit if the second code No. of mode No. 21 is set to "02".

If the air conditioning unit does not stop operating or the second
code No. is not "02", repeat step 4.
If the outdoor unit is not turned on, the display on the remote
controller will show "

U4

" or "

UH

" (refer to 

"Test operation" on

page 8

). However, you can continue setting this function

because these messages are only applicable to outdoor units.
After setting this function, be sure to turn on the outdoor unit
before performing the test operation on the outdoor unit.
If any other error display occurs on the display of the remote
controller, refer to 

"Test operation" on page 8

 and the operation

manual of the outdoor unit. Check the defective point.

Using the remote controller

Check on an indoor unit if the second code of mode No. 21 is set to
"01" (= factory setting). Change the second code according to the
external static pressure of the duct to be connected as shown in
table 2.

Table 2

Setting air filter sign

Remote controllers are equipped with liquid crystal display air
filter signs to display the time to clean air filters.

Change the SECOND CODE No. According to 

Table 3

depending on the amount of dirt or dust in the room. (SECOND
CODE No. Is factory set to "01" for filter contamination-light.)

Table 3

Control by 2 Remote Controllers (Controlling 1 indoor 
unit by 2 remote controllers)

When using 2 remote controllers, one must be set to "MAIN" and the
other to "SUB".

I

NSTALLATION

 

OF

 

THE

 

DECORATION

 

PANEL

Refer to the installation manual attached to the decoration panel.

After installing the decoration panel, ensure that there is no space
between the unit body and decoration panel.

T

EST

 

OPERATION

Refer to the section of 

"For the following items, take special care

during construction and check after installation is finished" on page 2

.

After finishing the construction of refrigerant piping, drain piping,
and electric wiring, conduct test operation accordingly to protect
the unit.

1

Open the gas side stop valve.

2

Open the liquid side stop valve.

3

Electrify crank case heater for 6 hours.

4

Set to cooling operation with the remote controller and start
operation by pushing ON/OFF button.

5

Press Inspection/Test Operation button 4 times and operate at
Test Operation mode for 3 minutes.

6

Press Inspection/Test Operation button and operate normally.

7

Confirm function of unit according to the operation manual.

If there is no change after airflow adjustment in the
ventilation paths, be sure to perform setting the
automatic airflow adjustment again.

Contact your dealer if there is no change after
performing airflow adjustment in the ventilation paths,
after performing the test operation of the outdoor unit
or when the air conditioning unit is moved to another
location.

If booster fans, an outdoor air processing unit or HRV
via duct are used, do not use automatic airflow
adjustment control with a remote controller.

If the ventilation paths have been changed, perform
the setting of the airflow automatic adjustment again
as described above from step 3 onwards.

NOTE

The second code No. is set to "02" by default.

Mode No.

First code No.

Second code No.

External static pressure (Pa)

13 (23)

6

01

40

02

50

03

60

04

70

05

80

06

90

07

100

08

110

09

120

10

130

11

140

12

150

13

160

14

180

15

200

Setting

Spacing time of 
display air filter 

sign (long life type)

Mode No.

First 

code No.

Second 

code No.

Air filter 

contamination - 

light

±2500 hrs

10 (20)

0

01

Air filter 

contamination - 

heavy

±1250 hrs

02

NOTE

If the main power supply is turned off during operation,
operation will restart automatically after the power
turns back on again.

Summary of Contents for FDQ125C7VEB

Page 1: ...INSTALLATION MANUAL FDQ125C7VEB Split System air conditioners ...

Page 2: ... 680 1 5 3 4 2 7 180 460 160 160 300 425 1 3 2 180 460 350 1 2 2 3 5 0 75 625 A 300 mm 1 1 5 m 2 3 1 4 100 mm 1 0 625 mm 1 1 2 4 5 3 6a 7a 7b 7c 6b 6c 8 9 10 11 2 1 3 5 4 700 630 A B 4 3 2 1 1 1 2 4 5 6 2 1 5 4 1 3 2 6 4 4 A A 1 2 3 4 5 6a 6b 6c 7a 7b 7c 8 9 10 11 ...

Page 3: ...ÙÔ ÈÛÙÔ ÔÈËÙÈÎfi C 08 Nota tal como estabelecido em A e com o parecer positivo de B de acordo com o Certificado C 09 Примечание как указано в A и в соответствии с положительным решением B согласно Свидетельству C 10 Bemærk som anført i A og positivt vurderet af B i henhold til Certifikat C 11 Information enligt A och godkänts av B enligt Certifikatet C 12 Merk som det fremkommer i A og gjennom posi...

Page 4: ...east 2 5 m from the floor Where the air contains high levels of salt such as air near the ocean and where voltage fluctuates a lot e g in factories Also in vehicles or vessels Do not install accessories on the casing directly Drilling holes in the casing may damage electrical wires and consequently cause fire Accessories Check if the following accessories are included with your unit Screws for fix...

Page 5: ...e to prevent that the fan blades or heat exchanger be touched The protection must comply with relevant European and national regulations 3 Use suspension bolts for installation Check whether the ceiling is strong enough to support the weight of the indoor unit If there is a risk reinforce the ceiling before installing the unit PREPARATIONS BEFORE INSTALLATION 1 Relation of ceiling opening to unit ...

Page 6: ...e gas piping and the liquid piping Otherwise this can sometimes result in water leakage Before rigging tubes check which type of refrigerant is used Use a pipe cutter and flare suitable for the used refrigerant To prevent dust moisture or other foreign matter from infiltrating the tube either pinch the end or cover it with tape Use copper alloy seamless pipes ISO 1337 The outdoor unit is charged w...

Page 7: ...t of at least 1 100 so that air may not remain trapped inside the pipe Keep pipe size equal to or greater than that of the connecting pipe vinyl pipe of 25 mm nominal diameter and 32 mm outer diameter Push the supplied drain hose as far as possible over the drain socket Tighten the metal clamp until the screw head is less than 4 mm from the metal clamp part as indicated in the illustration Wrap th...

Page 8: ...l board and confirm drain operation Be aware that the fan will turn during the operation After confirming drainage turn off the power 1 Ceiling slab 2 Hanger bracket 3 Adjustable range 4 Drain raising pipe 5 Drain hose supplied with the unit 6 Clamp metal supplied with the unit Installation A mm Rear suction installation 231 When canvas duct is installed 350 530 When air inlet panel is directly in...

Page 9: ... the terminal Use torques according to the table below When attaching the control box lid make sure not to pinch any wires After all wiring connections are done fill in any gaps in the casing wiring holes with putty or insulation material field supply thus to prevent small animals or dirt from entering the unit from outside and causing short circuits in the control box 2 Do not connect wires of di...

Page 10: ... fan operation mode perform the next steps stop the air conditioning unit go to field setting mode select mode No 21 or 11 in case of group setting set the first code No to 7 set the second code No to 03 Return to normal operating mode after setting these settings and press the ON OFF operation button The operation lamp will light up and the air conditioning unit will start the fan operation for a...

Page 11: ...and decoration panel TEST OPERATION Refer to the section of For the following items take special care during construction and check after installation is finished on page 2 After finishing the construction of refrigerant piping drain piping and electric wiring conduct test operation accordingly to protect the unit 1 Open the gas side stop valve 2 Open the liquid side stop valve 3 Electrify crank c...

Page 12: ...DIODE BRIDGE V2R POWER MODULE X1M TERMINAL STRIP POWER SUPPLY X2M TERMINAL STRIP CONTROL Z1C NOISE FILTER FERRITE CORE Z1F NOISE FILTER CONNECTOR OPTIONAL ACCESSORY X28A CONNECTOR POWER SUPPLY FOR WIRING X33A CONNECTOR FOR WIRING X35A CONNECTOR ADAPTOR WIRED REMOTE CONTROLLER R1T THERMISTOR AIR SS1 SELECTOR SWITCH MAIN SUB FIELD WIRING BLK BLACK ORG ORANGE CONNECTOR BLU BLUE PNK PINK WIRE CLAMP BR...

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Page 15: ... 2 3 4 5 P1 P2 6 2 3 4 5 P1 P2 2 3 4 5 P1 P2 P1 P2 1 2 3 1 2 3 1 2 3 4 5 P1 P2 P1 P2 6 13 1 2 3 2 3 1 2 3 4 5 P1 P2 P1 P2 P1 P2 6 6 1 2 L N 3 2 3 2 3 1 2 3 4 5 P1 P2 P1 P2 6 L N L N 1 1 1 1 1 1 L N 1 2 3 L N 1 2 3 1 2 3 L N 1 2 3 1 2 3 L N 1 2 3 12 13 14 15 16 17 ...

Page 16: ...4PW71105 1 08 2011 Copyright 2011 Daikin ...

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