IMPORTANT!
For your personal safety, be sure to read
and understand the following precautions
before servicing.
●
To avoid risk of injury when servicing the outdoor unit
(for instance, when replacing the compressor or
repairing a refrigerant leak), follow the procedure
12-1-1. Confirm mains power is switched OFF, then
open the electrical box in order to access to
the Power Control Board (PCB).
IMPORTANT!
Always check for fan running during the
servicing. This ensure you that the solenoid
valves SVa1 and SVa3 are open.
12. SPECIAL PRECAUTIONS WHEN SERVICING THE UNIT
Injuries can occur from burns or inhalation of
toxic gas if servicing is performed while
refrigerant remains in the refrigeration circuit.
This servicing includes disassembling brazed
tubing connections and removing any
refrigeration parts or components.
WARNING
Fig.12-1
Fig.12-2
The following procedures are outlined as if SYSTEM A
has to be serviced. The same steps, obviously, applies
in case of SYSTEM B servicing.
NOTE
12-1-2. Disconnect the brown wire from the terminal
of PCB's compressor relay. (Fig.12-1)
12-1-3. Connect two wires between poles L, 1, and 3
of the terminal plate (Fig.12-2)
Supply power to the outdoor unit. After 3 minutes
the outdoor fan A will start running and the solenoid
valves SVa1 and Sva3 will open.
In some cases it is required to have solenoid valves opened
during servicing. When so, perform the following steps:
50
below for the refrigerant circuit of system A or B
12-1. Solenoid valves opening for servicing
Содержание GR360M3R5TAA
Страница 15: ...Outdoor Unit GR360M3R5TAA 11...
Страница 24: ...8 2 Electric Wiring Diagrams Outdoor Unit GR360M3R5TAA Indoor Unit MCA90MR5TAA 20 Indoor Unit MCA180MR5TAA...
Страница 51: ...11 ARRANGEMENT OF ELECTRICAL COMPONENTS Terminal Plate Outdoor Unit GR360M3R5TAA 47 Electric Parts...
Страница 52: ...Outdoor Unit GR360M3R5TAA Parts Layout in Unit 48 Electronic Control Board Compressor A Compressor B...
Страница 53: ...Outdoor Unit GR360M3R5TAA 49 Solenoid valves lay out...