Carrier 50PEC09-18 Installation, Start-Up And Service Instructions Manual page 23

Water source heat pump console unit with puron refrigerant (r-410a) 50 hz
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Deluxe D
AL
— Alarm Relay Contacts
BR
— Blower Relay
CAP
— Capacitor
CB
— Circuit Breaker
CO
— Sensor, Condensate Overflow
CR
— Compressor Relay
DM
— Damper Motor
FP1
— Sensor, Water Coil Freeze Protection
FP2
— Sensor, Air Coil Freeze Protection
FSS
— Fan Speed Switch
HP
— High-Pressure Switch
JW4
— Jumper Wire for Alarm
LOC
— Loss of Charge Pressure Switch
NLL
— Night Low Limit
PB
— Power Terminal Block
RVS
— Reversing Valve Solenoid
TRANS — Transformer
WV
— Water Valve
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Field Line Voltage Wiring
Field Low-Voltage Wiring
Fig. 22 — 50PEC Unit Remote-Mounted Thermostat with Deluxe D Controller Wiring
LEGEND
Printed Circuit Trace
Option Low Voltage Wiring
Relay/Contactor Coil
Solenoid Coil
Thermistor
Circuit Breaker
Relay Contacts-N.O.
Switch-High Pressure
Switch-Low Pressure
Ground
Wire Nut
Mate-N-Lock
23
Deluxe D
*Optional wiring.
NOTES:
1. Compressor and blower motor thermally protected
internally.
2. All wiring to the unit must comply with local codes.
3. Transformer is wired to 240-V (ORG) lead for 240-
1-50 units. For 220-1-50 operation, switch the RED
and ORG leads at L1 and insulate the RED lead.
Transformer is energy limiting or may have a circuit
breaker.
4. FP1 thermistor provides freeze protection for
water. When using anti-freeze solutions, cut JW3
jumper.
5. Low voltage wiring must be class 1 and voltage
rated equal or greater than unit supply voltage.
6. Factory cut jumper (JW4). Dry contact will be avail-
able between AL1 and AL2.
7. Transformer secondary ground via GRN/YEL wire
from C to control box.
8. See view A for wiring of units with water valve (part
no. 23B00112N01) or view B for units with water
valve (part no. 23B00112N03).

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