Service manual

7HVW2SHUDWLRQ 6L(1%(
 7HVW2SHUDWLRQ
 2SHUDWLRQZKHQ3RZHULV7XUQHG2Q
 :KHQ7XUQLQJ2Q3RZHU)LUVW7LPH
7KHXQLWFDQQRWEHUXQIRUXSWRPLQXWHVWRDXWRPDWLFDOO\VHWWKHPDVWHUSRZHUDQGDGGUHVV
LQGRRURXWGRRUDGGUHVVHWF
6WDWXV
 :KHQ7XUQLQJ2Q3RZHUWKH6HFRQG7LPHDQG6XEVHTXHQW
7DSWKH5(6(7EXWWRQRQWKHRXWGRRUXQLW3&ERDUG2SHUDWLRQEHFRPHVSRVVLEOHIRUDERXW
PLQXWHV,I\RXGRQRWSXVKWKH5(6(7EXWWRQWKHXQLWFDQQRWEHUXQIRUXSWRPLQXWHVWR
DXWRPDWLFDOO\VHWPDVWHUSRZHU
6WDWXV
 :KHQDQ,QGRRU8QLWRU2XWGRRU8QLWKDVEHHQ$GGHGRU,QGRRURU
2XWGRRU8QLW3&%RDUGKDVEHHQ&KDQJHG
%HVXUHWRSXVKDQGKROGWKH5(6(7EXWWRQIRUVHFRQGV,IQRWWKHDGGLWLRQFDQQRWEH
UHFRJQL]HG,QWKLVFDVHWKHXQLWFDQQRWEHUXQIRUXSWRPLQXWHVWRDXWRPDWLFDOO\VHWWKH
DGGUHVVLQGRRURXWGRRUDGGUHVVHWF
6WDWXV
2XWGRRUXQLW 7HVWODPS+3%OLQNV
&DQDOVREHVHWGXULQJRSHUDWLRQGHVFULEHGDERYH
,QGRRUXQLW ,I21EXWWRQLVSXVKHGGXULQJRSHUDWLRQGHVFULEHGDERYHWKH8+
PDOIXQFWLRQLQGLFDWRUEOLQNV
5HWXUQVWRQRUPDOZKHQDXWRPDWLFVHWWLQJLVFRPSOHWH
2XWGRRUXQLW 7HVWODPS+3%OLQNV
&DQDOVREHVHWGXULQJRSHUDWLRQGHVFULEHGDERYH
,QGRRUXQLW ,I21EXWWRQLVSXVKHGGXULQJRSHUDWLRQGHVFULEHGDERYHWKHRSHUDWLRQODPS
OLJKWVEXWWKHFRPSUHVVRUGRHVQRWRSHUDWH5HWXUQVWRQRUPDOZKHQ
DXWRPDWLFVHWWLQJLVFRPSOHWH
2XWGRRUXQLW 7HVWODPS+321
&DQDOVREHVHWGXULQJRSHUDWLRQGHVFULEHGDERYH
,QGRRUXQLW ,I21EXWWRQLVSXVKHGGXULQJRSHUDWLRQGHVFULEHGDERYHWKH8+RU8
PDOIXQFWLRQLQGLFDWRUEOLQNV5HWXUQVWRQRUPDOZKHQDXWRPDWLFVHWWLQJLV
FRPSOHWH
A
A
O
pera
ti
ng w
ith
se
t
a
i
r
fl
ow ra
t
e
20E :
-2-4
Suction air temp.
Set temp.
b
a
(3)
(2)
(1)
*9. Fan operation
By setting the remote controller to Fan, the fan
will operate with thermostat OFF in set
temperature control operation mode.
*10. Set wind direction
According to wind direction instruction from the
remote controller, the wind direction is set to
100% horizontal while in heating operation.
*11. Fan
According to fan speed instruction from the
remote controller, the fan is put into operation in
LL mode while in heating operation.
*12. Wind direction
When the heating thermostat turns OFF, the wind direction will be set to 100% horizontal.
*13. Hot start
If the condenser inlet temperature exceeds 34°C at the time of starting operation or after the
completion of defrost operation, or until 3 minutes pass or Tc is above 52°C, hot starting will be
conducted.
*14. Thermostat status
*15. Outlet air temperature drop protection
When the set temperature is b
elow 24°C or the electronic expansion valve opening is small, the
protection will be activated.
Electronic
expansion valve
Closed
Caution When the 400 volt power supply is applyed to "N" phase by mistake,
replace Inverter PC board (A2P) and control transformer (T1R, T2R) in
switch box together.
(V0847)