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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, 240-V (ORG) lead for 240/1/50 units, or
208-V (RED) lead for 208/1/60 units.
Rewire transformer L1 connection if voltage is
230-1-60 or 220-1-50, insulate unused lead.
4. FP1 thermistor provides freeze protection for
WATER. When using ANTI-FREEZE solutions,
cut JW3 jumper.
5. Refer to LonWorks† Installation, Application, and
Operation manual for control wiring to the unit.
Low voltage wiring must be “class 1” and voltage
rated equal to or greater than unit supply
voltage.
6. Factory-cut jumper (JW1). 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 2 standoffs as
shown.)
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
FSS — Fan Speed Switch
HP — High-Pressure Switch
JW1 — Jumper Wire for Alarm
LOC — Loss of Charge Pressure Switch
PB — Power Terminal Block
RVS — Reversing Valve Solenoid
TRANS — Trans fo rme r
WV — Water Valve
---------- Field Line Voltage Wiring
Field Low-Voltage Wiring
Option Low-Voltage Wiring
Printed Circuit Trace
*Optional wiring.
†Registered trademark of Echelon Corporation.
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-Lock
>
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COMPLETE C
COMPLETE C
PEC
PEC12-18
PEC
a50-8327.eps
Fig. 18 — 50PEC Unit with Complete C and LON Controllers