01-21
Operation mode : Heating mode
Compressor : ON
Indoor fan : ON
Model type : Heat pump
1-22. EXTERNAL ELECTRICAL HEATER CONTROL
(Fig 15 : External Electrical Heater control)
When the room
temperature rises
When the room
temperature drops
Ts : Setting temperature
Heater : OFF
Heater : ON
Heater : OFF
Ts -10
°
C
Ts -1
°
C
Ts -3
°
C
Ts -12
°
C
The External Electrical Heater operates when it meets all the following conditions.
1-23. LOW NOISE OPERATION
Low Noise mode
LEVEL 1
LEVEL 2
Cooling
Heating
Cooling
Heating
Cooling
Heating
Outdoor Fan
Upper Limit Speed
( rpm )
Compressor
Speed ( rps )
The compressor speed and the outdoor unit fan speed are limited to reduce the operation noise
by External Input.
During the LOW NOISE OPERATION,
"CURRENT OVERLOAD OPERATION", "ECONOMY OPERATION" and "PEAK CUT OPERATION"
are effective, and the outdoor unit operates by lowest current of them.
However, during the DEFROST OPERATION, the compressor operates by the speed
for DEFROST OPERATION.
( Table 19 : Detail of Low Noise Operation )
LEVEL 3
520
520
520
520
520
520
58
58
37
39
27
33
*The performance drops when operating in the
LOW NOISE OPERATION
.
AMP Air Conditioning
www.ampair.co.uk | [email protected]
