Carrier 38AN,BK Heat Pump User Manual


 
4O
DEFROST REGION THREE
(NO DEFROST OPERATION)
3O
LU
LU
Q.
LU
I--
O
o
o
Q
F-
0
2O
10
0
DEFROST REGION TWO
(MINIMUM UNIT RUNTIME
= 6 HOURS*)
-10
-10 0 10 20
ADJUSTS IF LONG
DEFROST I
(MORE THAN
6 MINUTES)
ADJUSTS IF SHORT
LESS THAN
_ MINUTES)
DEFROST REGION ORE
(MINIMUM UNIT RUN TIME
= 50 MIN.*)
2O 4O
OUTDOORAIRTEMPERATURE(F)
*A defrostwill be initiatedafter 30 minutes of compressor runtime _fthe outdoor
coil temperature is less than -4 = F.
Fig. 16 -- Electronic Control Defrost Regions Map
TEST_]REMOTE
EMER,
LEGEND
EMER -- Emergency
Fig. 17 -- Slide Switch
17