Main/Sub Changeover; Test Operation - Daikin FDY125B7V1 Installation Manual

Note
1. All transmission wiring except for the remote controller wires
must match the terminal symbol.
2. Use shield wire in transmission wiring. Ground the shield of
the shield wire to " ", at the grounding screw of the remote
controller cord grounding terminal inside the control box.
3. For group control remote controller, choose the remote
controller that suits the indoor unit which has the most
functions (as attached swing flap).
F
IELD SETTING
S
ETTING EXTERNAL STATIC PRESSURE
Depending on the external static pressure (ducts, filter, etc.) which
is connected to the air conditioning unit the fan speed should be set
by changing the wires in the switch box. (Refer to Fig. 9)
Factory set: fan speed is M.
High ESP: fan speed is H.
Low ESP: fan speed is L.
S
ETTING 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 the table
depending on the amount of dirt or dust in the room. (SECOND
CODE No. is factory set to "01" for filter contamination-light.)
Setting Spacing time
of display air filter sign
(long life type)
Air filter
contamination- Approx. 2500 hrs
light
Air filter
Approx. 1250 hrs
contamination-
heavy
S
ETTING THE REMOTE SENSOR
The customer has the ability to select the thermistor. Both unit and
remote controller are equipped with a thermistor.
Setting
°
Setting Mode n
Enabled 20
Disabled 20
Change the second code n° according to the table to enable or
disable the remote sensor.
Mode No. FIRST SECOND
CODE No.
CODE
No.
01
10 (20) 0
02
° °
1st code n 2nd code n
2 01
2 02
C 2 R C
ONTROL BY EMOTE ONTROLLERS
(C 1
ONTROLLING INDOOR UNIT BY
When using 2 remote controllers, one must be set to "MAIN" and
the other to "SUB".

MAIN/SUB CHANGEOVER

1. Insert a wedge-head screwdriver into the recess between the
upper and lower part of the remote controller and, working from
the 2 positions, pry off the upper part. (see figure 10)
(The remote controller PC board is attached to the upper part of
the remote controller.)
2. Turn the main/sub changeover switch on one of the two remote
controller PC boards to "S". (see figure 11)
(Leave the switch of the other remote controller set to "M".)
1 Remote controller PC board
2 Factory setting
3 Only one remote controller needs to be changed
C
HECK LIST
For the following items, take special care during construction and
check after installation is finished.
❏ Is the indoor unit securely installed?
❏ Is the gas leakage checked?
❏ Is the heat insulation:
❏ For the gas pipe adequate?
❏ For the liquid pipe adequate?
❏ For the indoor side extension drain hose adequate?
❏ Does the drain flow out smoothly?
❏ Are the line voltages within tolerance?
❏ Is the earth wire earthed?
❏ Are wiring and piping correct?
❏ Are the air inlet and outlet of the indoor and outdoor unit not
blocked?
❏ Are refrigerant piping length and additional refrigerant charge
noted down?
T
EST OPERATION
Refer to of "CHECK LIST".
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.
P
RECAUTIONS
In case something is wrong with the unit and it does not operate,
refer to the malfunction diagnosis label attached to the unit.
2 )
REMOTE CONTROLLERS
4