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Outline of Functions (Outdoor unit)
SiBE811001EB
81
CONVENI-PACK
(2)-1 Startup control (for refrigeration)
The operation sequence of actuators when thermostat is turned ON
Open Y3E.
The outdoor unit fan will start to operate for 10 sec. (This is intended to measure the outdoor
air temperature accurately.)
Operation output controls low pressure condition (refer to time chart at left) operation output
[R1 signal (P1 and P2)] being ON/OFF.
The compressor will be activated, and open Y1E.
SV1 becomes ON/OFF with high pressure.
DS1
Tsd (Lpm1)
(Factory setting)
-10°C
(0.47MPa)
-20°C
(0.29MPa)
-15°C
(0.37MPa)
-5°C
(0.56MPa)
1
2
3
4
ON
OFF
1
2
3
4
ON
OFF
1
2
3
4
ON
OFF
1
2
3
4
ON
OFF
DS1
Tsd (Lpm1)
0°C
(0.69MPa)
5°C
(0.82MPa)
10°C
(0.98MPa)
1
4
3
2
ON
OFF
1
2
4
3
ON
OFF
1
2
3
4
ON
OFF
Lpm1: Pressure equivalent evaporative pressure set with DIP
switch (Evaporative temperature set with DIP switch: Tsd)
LP1: Pressure detected by low pressure sensor [S1NPL1]
52Hz
15sec.
56Hz
15sec.
480pls
480pls
Airflow rate corresponding to the outdoor air temperature
10pls/sec.
Fan
INV. Compressor
Y3E
Y1E
SV1
Activation complete
Operation output
90sec.
This may be turned ON in order to raise
LP, depending on outdoor air temperature
and the thermostat OFF time.
LP > 0.49MPa: Operation output OFF
LP < 0.294MPa: Operation output ON