Bosch HPC User Manual

Wiring Diagrams | 31Heat Pump Controller
8733819577 (2019/02)Heat Pump Controller Subject to change without prior notice
Fig. 37 One Stage (2-Step) Single-Phase Unit with EON Motor and Electric Heat
ALARM STATUS LED - BLINK CODES
1
HIGH PRESSURE FAULT
2 LOW PRESSURE FAUL 3 CONDENDSER FREEZE CONDITION 4 CONDENSATE OVERFLOW FAULT 5 BROWNOUT FAULT 6 EVAPORATOR FREEZE CONDITION
THERMOSTAT
R C G O Y1 Y2 W1 W2 H RH
T1 - C
T1 - R
COMM
12 + - C
HPS
HPS
LPS
LPS
FZC
C
FZE
CON
X
X
EWT
EWT
LWT
LWT
RAT
RAT
DAT
DAT
SR C AUX C
10
9
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
4
3
2
1
5
4
3
2
1
X X
L1 L2 HRP HRP LP1 LP2
X
ERT
ERT
DWT
DWT
24DC
RPM
PWM
GND
1 2
3 4
5 6 7 8
CS1 C CS2
RV
C
HUM RHV/SEL
C
1 2
3 4
5 6 7 8
1
2
3
4
HPC
F4
3 AMP
2
1
1
2
3
4
5
6
7
8
9
10
SERVICE PORT
P1 P2 P3 P4 P5
ALRDISPLAY
P6 P7
P8 P9 P10
5
4
3
2
1
F5 -1A F6 -5A F7- 5A
PUMP FUSES
TO ECM MOTOR
WIM
12V - + GND
1 2 4 5
FOR REFERENCE ONLY Actual unit wiring
may vary from this example. Always refer to the
wiring diagram attached to the unit.

Bosch HPC Specifications

General

Brand	Bosch
Model	HPC
Category	Controller
Language	English