47
Description of the Switch panel
Function
Water Pump : Control the Water Cycle Pump
E-Heater : Control the Electrical Heater 1 and 2
Connect to the PCB 2 ( CN1 L-IN)
common
Terminal
(CT)
Connect
to
Connect
to
WTP1
When test or repair the machine, the compressor,
be force manual startup.
water cycle pump and outdoor fan motor can
WATER
PUMP
E- HEATER
O - WARM
WATER
I -
HEATING
ROOM
RESERVED
ROOM HEATING
WARM WATER
NORMAL
WARNING !
THE SWITCH BOARD IS FOR EMERGENCY ONLY,
AND MUST BE OPERATED BY SERVICE ENGINEER ONLY!
1
˖
The switch board is only for emergency, such as circuit boards were broken; and it must be operated by
service engineer only.
2
˖
When control systems are normal, it is forbidden to operate the switch board; the switch boards are only
available when circuit board or compressor broken; before using the switch board, it must set and ensure the
OPER. is OFF at the display.
A> NORMAL:
switch boards must keep the position as drawing then allow heat pump to runs normally.
B> ROOM HEATING:
room heating only; switch boards must keep the position as drawing then allow heat pump to heat room,
the feed water temperature is fixed with 40
ć
; before using this mode, it must set and ensure the OPER. is
OFF at the display .
C> WARMEATER:
water tank heating only; switch boards must keep the position as drawing then allow heat pump to heat
water tank, the feed water temperature is fixed with 70
ć
; before using this mode, it must set and ensure the
OPER. is OFF at the display.
,
ROOM 20
MONDAY
11:30
1
HDO
CSP
OPER.OFF
Connect
to
common
Terminal
(CT)
O-Warm Water : Control the 3 way valve turn to the Water Tank
Heating side ( B side )
I-Room Heating : Control the 3 way valve turn to the Room
Heating side ( A side )
Reserved : Invalid
The manual switch board is use only if
the necessary
for
test
or
repair.
When the heat pump
is
running
normally,
the switch board must be in normal state.
NOTICE!
