8. low temperature cutff (heating) – Sanyo CH1852 User Manual
Page 57
53
■
Defrosting Mode Timing Chart
*1: Refer to "8-6 Cold Draft Prevention".
8-8. Low Temperature Cutff (Heating)
●
This function protect the compressor from being damaged due to flow back of the liquid refrigerant to the com-
pressor when the outdoor temperature is very low.
●
Low ambient operation during heating can cause the outdoor heat exchanger to become super–cooled which
may result in liquid back–flow. To protect the compressor from this condition, both compressor and outdoor fan
stop if the outdoor temperature drops around 5°F. However, the indoor fan continues to operate even after the
compressor has stopped. Note that standby lamp does not lights up during this period.
5
¡
F
17
¡
F
Outdoor
air temp.
Compressor
and
Outdoor fan
Indoor fan
Standby lamp
ON
OFF
OFF
ON
ON
ON
ON
NOTE
ON
ON
ON
ON
ON
ON
ON
ON
Set speed
OFF
OFF
OFF
OFF
32 seconds
Max. 11 minutes
32 seconds
Start of defrosting
Release of defrosting
OFF
OFF
Release of
cold draft prevention
Compressor
Outdoor fan
Solenoid coil
(4 – way valve)
Indoor fan
Standby lamp
Indoor heat
exch. coil
temp.
ON
ON
Set speed
* 1
2 seconds
2 seconds
95
¡
F
77
¡
F
LL
000-111
SM
(18-68)
00.3.17
11:49
AM
y [ W 53