Ameristar M4HP40 Series, Руководство по установке

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NOTE
NOTE
7.4 DEFROST MODE INTRODUCTION (Heat pump only)
Fig.11 SW3 Switch Location in the PCB Board
SW3 Switch
Manual defrost mode
When the switch SW3-1 is set to “ON”, the system turns to the defrost mode.
By the logic of
Shut-down conditions of defrost mode
to exit the defrost mode.
Caution: Once the manual defrost mode is finished, please switch the PCB switch
back to “1”.
Start-up conditions of defrost mode:
7.4.1 When SW3-3 switch is set to “ON”(See in Fig 11), the mode will start up in any of
the following conditions:
1. Compressor operating, when T3 is < 30.2 °F last for 30 minutes;
2.T3 is < 28.4 °F and compressor operating for the first time after connected to the
power source.
3. When T3 is < 28.4 °F and The system standby two hours continuously .
7.3 PROTECTION FUNCTION INTRODUCTION
(Heat pump only)
Sensor T3 (condenser pipe temperature) and T4 (outdoor ambient temperature
)
When open-circuit, compressor, outdoor fan motor and reverse valve will be OFF.
T3
＞
143.6° F ,compressor stop working ; T3
＜
125.6° F ,compressor start working.
When T4 < 5 ° F
,
compressor will stop.If the electrical heater kit is installed in the
indoor unit, the outdoor unit would provide a signal to drive up the heater.
When T4 > 10.4 ° F , compressor will restart.
Discharge temperature protection (
optional)
When discharge temp. > 275 °
F , the compressor will stop.
When discharge temp. < 194 °
F , the compressor will restart.
High pressure protection (
optional)
When high pressure > 638 PSIG, the compressor and outdoor fan motor will stop.
When high pressure < 464 PSIG, the compressor and outdoor fan motor will restart
(3 minutes delay necessary).
Low pressure protection
Low pressure < 21 PSIG, the compressor and outdoor fan motor will stop.
Low pressure > 44 PSIG, the compressor and outdoor fan motor will restart
(3 minutes delay necessary).
In stand-by status, the compressor will not start in low pressure protection.
Within 30 mins, if 4 protection cycles occurs.The system will be locked. It will
be restore after power cycle.
MANU A L DEF R O ST
AUTO M ATI C D EFROST
NO R M A L D E F R OST
D E FROS T IN G CY C LE:60 M IN
DE F R O STI N G CYC L E : 30M IN
R E S E R V ED
NOTE:
14 SEER
C
RE
D
YE
LL
O
W
GR
EE
N
Y
R
G
INDOOR UNIT
OUTDOOR UNIT
G
C
Y
B
LA
C
K
R
C
B
LA
C
K
GROUND
PLUG PLA TE