18
Fig. 17 — 50PEC Unit Manual or Auto Changeover with Complete C Controller Wiring
LEGEND
NOTES:
1. Compressor and blower motor thermally pro-
tected internally.
2. All wiring to the unit must comply with local
codes.
3. Transformer is wired to 115-V (WHT) lead for
115/1/60 units; 265-V (BRN) lead for 265/1/60
units; or 208-V (RED) lead for 208/1/60 units.
For 230/1/60 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. For remote sensor, position jumper J1 on upper
2 pins.
6. For F position, position jumper on both pins.
For C, position jumper on one pin.
7. Transformer secondary ground via Complete C
board standoffs and screws to control box.
(Ground available from top two standoffs as
shown.)
8. Mate-N-Lok† plug is optional.
9. Factory-cut jumper (JW1). Dry contact will be
available between AL1 and AL2.
°
°
AL — Alarm Relay Contacts
BM — Blower Motor
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
HP — High-Pressure Switch
JW1 — Jumper Wire for Alarm
LOC — Loss of Charge Pressure Switch
PB — Power Terminal Block
RAS — Return Air Sensor
RVS — Reversing Valve Solenoid
TRANS
—
Transformer
WV
—
Water Valve
---------- Field Line Voltage Wiring
Field Low-Voltage Wiring
Printed Circuit Trace
Option Low Voltage Wiring
*Optional wiring.
†Registered trademark of AMP Incorporated.
Relay/Contactor Coil
Solenoid Coil
Thermistor
Circuit Breaker
Relay Contacts-N.O.
Switch-Temperature
Switch-High Pressure
Switch-Low Pressure
Ground
Wire Nut
Mate-N-Lok
>
>
Complete C
Complete C
SEE NOTE 9
BLOWER MOTOR WIRING
UNIT SIZE POLE A POLE B
09-18 5 4
a50-8452
