Page 4
1 − Transformer T5
Transformer T5 is used on all J" voltage units. T5 is used as a
step-down transformer for the outdoor fan motor. The
transformer is located inside the unit control box (see figure 3).
The transformer is rated at 3.4 VA with a 575 volt primary and
a 460 volt secondary.
FIGURE 3
HP29 THREE-PHASE UNIT CONTROL BOX
TRANSFORMER(T5)
J" VOLTAGE
UNITS ONLY
GROUNDING
LUG
COMPRESSOR
CONTACTOR
(K1)
DEFROST
CONTRO
L
(CMC1)
RUN CAPACITOR
(C1)
OUTDOOR FAN
RELAY (K10) G"
& J" VOLTAGE
UNITS ONLY
FIGURE 4
DUAL CAPACITOR
(C12)
START
CAPACITOR
(C7)
COMPRESSOR
CONTACTOR
(K1)
HP29 SINGLE-PHASE UNIT CONTROL BOX WITH
RECIPROCATING COMPRESSOR
GROUNDING
LUG
DEFROST
CONTROL
(CMC1)
POTENTIAL
RELAY (K31)
2 − Dual Capacitor C12
The compressor (scroll or reciprocating) and fan in
single-phase units use permanent split capacitor motors. The
capacitor is located inside the unit control box (see figure 4 and
5). A single dual" capacitor (C12) is used for both the fan
motor and the compressor (see unit wiring diagram). The fan
side and the compressor side of the capacitor have different
MFD ratings. See table 1 for dual capacitor ratings.
FIGURE 5
DUAL CAPACITOR
(C12)
COMPRESSOR
CONTACTOR
(K1)
HP29 SINGLE−PHASE UNIT CONTROL BOX
WITH SCROLL COMPRESSOR
GROUNDING
LUG
DEFROST
CONTROL
(CMC1)
HP29−024
HP29−030
HP29−042
HP29−048
5
30
5
35
7.5
370
7.5
40
60
FAN
HERM
FAN
HERM
FAN
HERM
FAN
HERM
440
HP29−018
5
25
FAN
HERM
HP29−036
5
40
FAN
HERM
370
FAN
HERM
7.5
80
HP29−060
Unit
MFD
VAC
HP29 (C12) DUAL CAPACITOR RATING
HP29−261
HP29−311
HP29−461/511
HP29−651
5
30
5
35
7.5
370
7.5
50
70
Terminal
FAN
HERM
FAN
HERM
FAN
HERM
FAN
HERM
440
HP29−211
5
25
FAN
HERM
HP29−411
5
40
FAN
HERM
TABLE 1
