18-BB38D1-1D-EN
17
Figure 13.
Field Wiring — 4WCY5024–042
Notes:
1. Fused disconnect size, power wiring and
grounding of equipment must comply with
codes.
2. Be sure power supply agrees with equipment
and heater nameplate.
3. Low voltage wiring to be 18 AWG minimum
conductor.
4. See heater nameplate for current rating of
heater used.
5. See unit and heater diagram for electrical
connection details.
6. If electric heater accessory is not installed,
omit the electric heater, associated power
wires and the “W” and “X2” thermostat wires.
7. Fig 3 demonstrates connection of the
outdoor thermostat accessory only.
For further unit connection details, refer
to the other figures.
8. The W1 (WH) wire is first stage electric heat.
If the electric heater accessory has two
heating stages, the W2 (WH) wire is second
stage electric heat.
9. When the BAYECONO54A or -055A
economizer is installed, the BAYRLAY003
relay accessory kit is required to interface
the economizer to the heat pump for proper
system operation. When the BAYECONO54B,
-055B or 073A economizer is installed, the
BAYRLAY004A relay accessory kit is required
to interface the economizer to the heat pump
for proper system operation.
10. The BAYSTAT033A outdoor thermostat
accessory kit contains a thermostat and
a relay. The relay is not required to be
used in this application.
