2. Processes and functions

Section

1

2

3

4

2-8 Discharge Temperature Control (Cooling and Heating)

This function prevents the compressor motor from burnout by overheating.

 

239

 

 

 

 

221

 

 

 

 

203

 

 

 

 

200

 

 

 

DISCHARGE GAS

 

 

 

 

TEMP. (°F)

194

 

 

 

 

 

 

 

 

185

 

 

 

OUTDOOR

 

 

 

 

FAN SPEED

 

H OR M

M

H OR M

 

 

 

 

COMPRESSOR

 

 

ON

 

 

 

 

ELECTRONIC REF.

 

 

 

CONTROL VALVE

OPEN

 

OPEN

(DISCHARGE TEMP.)

 

 

 

 

TRIP IS OPERATED.

1141_THS_I

Fig. 11

Chart Summary and Explanations

Discharge temperature is sensed by TH8 (discharge gas sensor).

When the temperature rises above 203°F the electronic refrigerant control valve opens at 50 steps/30 seconds until the temperature falls below 200°F.

During HEATING operation, when the temperature rises above 221°F, the control circuit stops the outdoor fan motor until the temperature falls below 194°F. Please note that this control does not function during COOLING operation.

For both COOLING and HEATING modes, if the temperature reaches 239°F the operation shuts down and alarm P3 appears on the remote controller.

The outdoor fan speed is controlled on discharge temp. at heating mode.

SM830076

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Sanyo CH2432, XHS3632, XHS2432, CH3632 service manual Discharge Temperature Control Cooling and Heating

XHS3632, XHS2432, CH3632, CH2432 specifications

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