Sanyo CG1411 User Manual download pdf (Page 37)

100

8-3. Heating

8-3-1. Room Temperature Control

● Room temperature control is obtained by cycling the compressor ON and OFF under control of the room

temperature sensor in the indoor unit.

● All information is transmitted every 3 minutes by the remote control unit to the controller in the indoor unit.

● The control circuit will not attempt to turn the compressor ON until the compressor has been OFF for at

least 3 minutes. To protect the compressor from stalling out when trying to start against the high side

refrigerant pressure, the control circuit has a built-in automatic time delay to allow the internal pressure to

equalize.

● As a protective measure, the control circuit switches the compressor OFF after 3 minutes or more of com-

pressor operation.

● Thermo. ON: When the room temperature is below T + 1°F (T°F is set temperature).

Compressor ➔ ON

● Thermo. OFF: When the room temperature is equal to or below set temperature T + 2°F.

Compressor ➔ OFF

3 minutes 3 minutes

Thermo.

OFF

Thermo.

OFF

Thermo.

OFF

OFF OFF

OFF

Set temp.

T+2°F

T+1°F

113°F

(45°C)

90°F

(32°C)

Compressor

Indoor fan

Combustion

Indoor heat exch.

coil temp.

Operation button

More than

3 minutes

More than

3 minutes

LL LL

Reversing

valve coil

sec.

Set speed

Set

speed

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 99 100

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Sanyo CG1411 User Manual Page 37

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