Electrical Wiring Diagram And Dipswitch Settings; Reassembly; Confirmation Of Proper Operation - Mitsubishi Electric City Multi PAC-PH01EHYU-E Manuel D'installation

[Fig. 8.1.2.2]
<A> Screw down the metal sheet wiring cover and the fin
guard at three points.
A Fin guard
B Cover wiring 1
C Cover wiring 3
• Wiring on the right and left rear sides and installing the
wiring cover
[Fig. 8.1.2.3]
<A> As with <A> and <B> in [Fig.8.1.0.1], remove the water-
proof cap from the unit wiring connector.
<B> Pull up the panel heater wirings so that the wirings run
along the right rear pillar.
<C> Connect the panel heater wiring and the unit wiring and
run the connected wiring between the fin guard and the
pillar.
<D> As with <E> in [Fig.8.1.0.1], place the cover back and
fix the cover with the tie band.

9. Electrical wiring diagram and Dipswitch settings

<PAC-PH01EHYU-E>
[Fig. 9.0.1]
See the electrical wiring diagram.
[Fig. 9.1.1]
Dipswitch settings
1 Set the 10th bit of SW6 to ON.
2 Set SW4 as shown in the table below to select the
setting item No.974.
(The setting item No. will be displayed on LED1.)
3 Press SWP3 for two seconds or longer to change the
settings. (The settings can be checked on LED3.)
*1 Set SW4 while the unit is stopped.

10. Reassembly

Reinstall the parts in the reverse order in which they were removed.
<PAC-PH01EHYU-E>
[Fig. 10.0.1]
<A> Attach the supplied wiring diagram nameplate under the
caution plate on the main control box cover.
A Label
[Fig. 10.0.2]
Re-place all components as they were.

11. Confirmation of proper operation

Checking the panel heater for normal operation
(1) Use a tester to check that the heater wire is not broken for proper operation.
(2) Check the output voltage for proper circuit operation.
• Energizing conditions*1: Heating mode, outside temperature of 4°C or below, and the compressor is in operation
*1 To meet the above conditions, cool the outdoor temperature sensor (TH7) using a cold spray. When cooling the sensor, make
sure to close the control box panel to keep the cold spray from getting on the board inside of the control box.
• Use the supplied terminal block for the panel heater.
• Switch setting is required to use the panel heater.
30
A Unit wiring
B Cover
C Panel heater wiring
D Fin guard
E Pillar
F Tie band
[Fig. 8.1.2.4]
<A> Screw down the metal sheet wiring cover and the fin
guard at three points.
A Fin guard
B Cover wiring 1
C Cover wiring 2
D Cover wiring 3
<PAC-PH02EHYU-E> <PAC-PH03EHYU-E>
[Fig. 9.0.2]
See the electrical wiring diagram.
[Fig. 9.1.1]
Dipswitch settings
1 Set the 10th bit of SW6 to ON.
2 Set SW4 as shown in the table below to select the
setting item No.974.
(The setting item No. will be displayed on LED1.)
3 Press SWP3 for two seconds or longer to change the
settings. (The settings can be checked on LED3.)
*1 Set SW4 while the unit is stopped.
<PAC-PH02EHYU-E> <PAC-PH03EHYU-E>
[Fig. 10.1.1]
<A> Attach the supplied wiring diagram nameplate under the
caution plate on the control box front cover.
A Label
[Fig. 10.1.2]
Re-place all components as they were.