43
FIGURE 70 — 52CE AND 52PE — TYPICAL WIRING SCHEMATIC FOR
STANDARD HEAT/COOL UNITS
COMPONENT LEGEND
Component Connection (Marked)
Component Connection (Unmarked)
Accessory or Optional Wiring
To Indicate Common Potential Only
Not To Represent Wire
CAP —
Capacitor
COMP —
Compressor
FM —
Fan Motor
FCS —
Fan Cycle Switch
HTR —
Heater
IT —
Indoor Thermostat
NEC —
National Electrical Code
OL —
Overload
PLS —
Primary Limit Switch
SLS —
Secondary Limit Switch
ST —
Start Thermistor
SW —
Switch
NOTES:
1. Recommended for use on grounded power sup-
ply only.
2. Compressor and fan motor thermally protected.
3. Use copper conductors only.
4. All wiring must conform with NEC and local
codes.
5. Dashed lines indicate components when used.
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