Sanyo CH3632 Benutzerhandbuch

 – 37 –

SM830076

When the outdoor temperature is low, frost may form on the outdoor heat exchanger coil.
When this occurred, the defrosting system operates. The microprocessor in the outdoor unit
monitors the relationship between the temperature of the outdoor heat exchanger coil and the
outdoor temperature so it can defrost when necessary.

COMPRESSOR

OFF  OR  LL

OFF  

OR  LL

Release of
Defrosting

Defrosting
Start

SOLENOID COIL
(4 WAY VALVE)

OUTDOOR FAN
(H  OR  L)

INDOOR FAN
(SET SPEED)

“STANDBY”
INDICATOR

MAX.  9 MINUTES

1 MINUTE

1 MINUTE

ON

ON

ON

ON

ON

ON

ON

“STANDBY”  APPEARS

❑

During the defrost cycle, STANDBY appears on the remote controller.

❑

*......Cold Draft Prevention may operate occasionally

Occurs either when the temperature of C1 (the outdoor
heat exchanger coil) has reached 50

°

F or above,

or when the maximum defrosting time (9 minutes)
has elapsed.

Refer to time chart.

*Minimum continuous operating time by defrosting is 48 minutes (= 15 + 8 + 25).

Release of defrosting

Defrosting

Stand by time for defros: 
25 minutes

Flow of Defrosting

Heating operation

No counting time for detecting 
frost : 15 minutes

Detecting the frost

OUTDOOR  COIL
TEMP.    C1  (

°

F)

Y

“RELEASE OF
DEFROSTING”
RANGE

50

7.3

50

OUTDOOR  AIR  TEMP.

(

°

F)

X

27

18

The area below the heavy line 
is the frost detection area.

–4

Either continuous 8 minutes or cumulative 60 minutes 
are required to detect frost in the “Frosting” range.