Heat Mode; Deice Control - Vivax ACP-09CH25ZNM Service Manual

CONTROL SPECIFICATION

HEAT MODE

If the air conditioner is off and then turned on while set at COOL ,HEAT or DRY mode, it will
take approximately 3 minutes for the compressor to start.
The ST at heat mode is adjustable within16 -31 .
When RT ST, the compressor stops; when RT<ST-1 , the compressor starts.
Once turning on the unit while set at heat mode, if all the conditions meet with the
requirement of compressor operation, the four-way valve gets charged and 8 seconds later,
the compressor and outdoor fan start running.
Strong-wing prevention :
A.PT<27,the indoor fan stops running, the swing louver cannot be controlled by the remote
controller.
B.34>PT 27,the indoor fan runs at low speed, the sweep louver erects.
C.PT 34,the indoor fan and the swing louver can be controlled normally.
Heat overload protection:
For 7000 BTU/h Model
fan starts; when PT 60 , the compressor stops.
For 9000 BTU/h Model
fan starts; when PT 63 , the compressor stops.
For 9000 BTU/h Model
fan starts; when PT 63 , the compressor stops.

Deice control:

Conditions for activating deice:
a. The working hours of compressor accumulates to be 40 minutes.
b. When OT -4
Conditions for terminating deice:
a. When OT 15
b. Over 10 minutes of deicing operation.
Electric-heat control:
Conditions for initiating electric-heat function:
a. RT 23 ; b. RT+3
d. Turn on the electric-heat key; e. PT<50
Conditions for terminating electric-heat function:
a. PT 50 ; b. RT 26 ;
d. Turn off the electric-heat key; e. Mode change.
Conditions for terminating electric-heat function:
a. PT 50 ; b. RT 26 ;
d. Turn off the electric-heat key; e. Mode change.
OT
COMP
OFAN
4-way
valve
TIME
, when PT 47 , the outdoor fan stops; when PT 42 , the outdoor
, when PT 50 , the outdoor fan stops; when PT 47 , the outdoor
, when PT 55 , the outdoor fan stops; when Pt 50 , the outdoor
for 1 minute.
for 1 minute.
ST; c. The indoor fan runs;
c. The indoor fan stops running;
c. The indoor fan stops running;
15
-4
ON
OFF
ON
OFF
ON
OFF
30S 15S
10 minutes at most
18
30S 15S