Hitachi UTOPIA RAS-4HVRP2E - Test Run from the Outdoor Unit

7 Commissioning
Test run from the outdoor unit
SMGB0136 rev.0 - 07/2021
148
(*) Procedures for recovery when transmitting circuit fuse is blown out:
a. Correct the wiring for the terminal board.
b. Setting positions of the model code are shown below.
Indoor unit PCB
Outdoor unit PCB
RAS-3HVRC2
Outdoor unit PCB
RAS-(4-6)H(V)(R/N)(C/P)2E
DSW7 DSW5 DSW5
12
ON
12
ON
12
ON
After checking procedure back to Step 1.
7.4 Test run from the outdoor unit
The procedure of test run from the outdoor unit is indicated below. The setting of this DSW is available with power source
ON. Setting of DSW (before shipment):
RAS-3HVRC2- Outdoor unit PCB - DSW301
RAS-(4-6)HV(R/N)(C/P)2E - Outdoor unit PCB2 - DSW1
RAS-(4-6)H(R/N)(C/P)2E - Outdoor unit PCB1 - DSW1
Switch for setting of service operation and function Switch for setting of service operation and function
Pin Function Pin Function
1 Cooling 1 Test run
2 Heating 2
COOL/HEATsetting
(OFF: cooling mode)
(ON: heating mode)
3 OFF(xed) 3 OFF(xed)
4 Manual compressor OFF 4 Manual compressor OFF
! DANGER
• Do not touch any other electrical component part when operating switches on the PCB.
• Do not attach or detach service cover when the power source for the outdoor unit is supplied and the outdoor unit is
operated.
• Turn all the dip switches of OFF when the test run operation is completed.