Carrier AQUAZONE 50HQP072-120 Installation And Service Instructions Manual page 11

BC — Blower Contactor
CB — Circuit Breaker
CC — Compressor Contactor
CO — Sensor, Condensate Overflow
DPP — Dual Point Power
FP1 — Sensor, Water Coil Freeze Protection
FP2 — Sensor, Air Coil Freeze Protection
HP — High-Pressure Switch
HPWR — High-Pressure Water Relay
JW3 — Clippable Field Selection Jumper
LOC — Loss of Charge Pressure Switch
PDB — Power Distribution Block
RVS — Reversing Valve Solenoid
TRANS — Transformer
TXV — Thermostatic Expansion Valve
Factory Line Voltage Wiring
Factory Low Voltage Wiring
NOTES:
1. Compressor and blower motor thermally protected internally.
2. All wiring to the unit must comply with NEC (National Electrical
Code, U.S.A.) and local codes.
3. 380/420-v transformers will be connected for 380-v operation. For
420-v operation, disconnect VIO lead at L1, and attach BRN lead
to L1. Close open end of VIO lead.
4. FPI thermistor provides freeze protection for WATER. When using
ANTIFREEZE solutions, cut JW3 jumper.
5. Typical heat pump thermostat wiring shown. Refer to thermostat
installation instructions for wiring to the unit. Thermostat wiring
Fig. 12 — 50HQP072-120 Units — Typical Control Wiring with Complete C Control
Complete C
Complete C1
Complete C
Complete C2
LEGEND
Field Line Voltage Wiring
Field Low Voltage Wiring
Printed Circuit Trace
Optional Wiring
Relay/Contactor Coil
Thermistor
Condensate Pan
Circuit Breaker
must be "Class 1" and voltage rating equal to or greater than unit
supply voltage.
6. 24-v alarm signal shown. For dry alarm contact, cut JW1 jumper
and dry contact will be available between AL1 and AL2.
7. Transformer secondary ground via Complete C board standoffs
and screws to control box. (Ground available from top two stand-
offs as shown.)
8. Suffix 1 designates association with lead compressor. Suffix 2
with lag compressor.
9. For dual point power (DPP) option, blower wire will connect to
other PBD.
11
Complete C1
Complete C2
Ground
Solenoid Coil
Relay Contacts - N.O.
Relay Contacts - N.C.
Temperature Switch
Switch - Low Pressure
Switch - High Pressure
Wire Nut