Fig. 19 — 208/230-v ECM Motor without Controls
NOTES:
1. Make electrical installation in accordance with job diagram, and in compliance with national and
local electrical codes.
2. Low limit thermostat (LLT) is installed on all units with water coils.
3. Wire YEL/EC5 factory connected to LOW. Positions MED, HIGH, MAX are for field use with ESP.
4. Transformers shown wired for 240-v. However, transformers are factory-wired to match the volt-
age listed on the unit nameplate.
LEGEND
DISC — Disconnect Switch
DX — Direct Expansion
ECM — Electronically Commutated Motor
ESP — External Static Pressure
FU — Fuse
GND — Ground
LLR — DX Low Limit Switch
LLT — Water Coil Low Limit Thermostat
SW — Switch
TRAN — Transformer
Harness Connection
Connection Point Splice
Splice Terminal Connection
Component Tie Point
Optional Wiring
Factory Wiring
Chassis Ground
Earth Ground
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