Carrier AQUAZONE 50RHC Installation And Service Instructions Manual page 19

AL — Alarm Relay Contacts
BM — Blower Motor
BMC — Blower Motor Capacitor
BR — Blower Relay
CB — Circuit Breaker
CC — Compressor Contactor
CO — Sensor, Condensate Overflow
COMPR — Compressor
FP1 — Sensor, Water Coil Freeze Protection
FP2 — Sensor, Air Coil Freeze Protection
HP — High-Pressure Switch
HWTS — High (Leaving) Water Temperature
Switch
JW1 — Jumper, Alarm
*Optional wiring.
NOTES:
1. Compressor and blower motor thermally protected internally.
2. All wiring to the unit must comply with NEC and local codes.
3. Transformer is wired to 265 v (BRN) lead for 265/1/60 units, or
208 v (RED) lead for 208/1/60. For 230/1/60 switch RED and
ORG leads at L1 and insulate RED lead. Transformer is energy
limiting or may have circuit breaker.
4. FP1 thermistor provides freeze protection for water. When using
antifreeze solutions, cut JW3 jumper.
5. Typical Aquazone thermostat wiring shown. Refer to thermostat
installation instructions for wiring to the unit. Thermostat wiring
must be Class 1 and voltage rating equal to or greater than unit
supply voltage.
LOC — Loss of Charge Pressure Switch
MV — Motorized Valve
NEC — National Electrical Code
P1 — Field Wiring Terminal Block
PM — Performance Monitor
RV — Reversing Valve Coil
TRANS — Transformer
TXV — Thermostatic Expansion Valve
Fig. 19 — Typical Aquazone™ Complete C Control Wiring
LEGEND
Field Line Voltage Wiring
Field Low Voltage Wiring
Printed Circuit Trace
Optional Wiring
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 control board standoffs and
screws to control box. (Ground available from top two standoffs
as shown.)
8. For high or low speed remove BLU wire from BR 'NO'
and replace with BLK or RED wire respectively. Tape off unused
terminal.
9. Both DIP switches need to be in the ON position.
19
a50-8160
Relay/Contactor Coil
Condensate Pan
Solenoid Coil
Temperature Switch
Thermistor
Ground
Wire Nut