Indoor Unit Wiring - Carrier 40MUAA Installation Instructions Manual

40MUAA: Installation Instructions
6. Tighten the screws.
Fig. 44 — Tighten the Screws
7. Wiring according to the wiring template.
8. Install the upper cover.
9. Install the Resilient Cover.
Fig. 45 — Wiring According to the Wiring Template
After the electric heating wiring is connected and before powering on:
• check all wiring and ensure a reliable connection of the wire body
• ensure the electric heating screw is tightened
• ensure the size selection of the power wire meets the power supply
requirements.
NOTE: An electric auxiliary heating wiring diagram is supplied with
the accessories. For maintenance convenience, paste the wiring
diagram in the inside cover after the installation of electric auxiliary
heating modules is complete.
NOTE: After installing the electric auxiliary heat module, adhere the
circuit breaker label near the upper cover circuit breaker.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Fig. 46 —Electrical Disconnect
IMPORTANT:

INDOOR UNIT WIRING

Before proceeding with electrical connections, make certain that the
A220795
supply voltage, frequency, phase, and ampacity are as specified on the
unit rating plate. Review the unit wiring label for proper field high and
low voltage wiring.
Ensure all electrical connections are in accordance with the NEC and any
local codes or ordinances that may apply. Use copper wire only.
PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in product or property
damage. If a disconnect switch is to be mounted on the unit, select
a location where the drill or fastener will not contact electrical or
refrigerant components.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or
death. Field wires on the line side of the disconnect found in the
fan coil unit remain live, even when the pull-out is removed.
Service and maintenance to incoming wiring cannot be performed
until the main disconnect switch (remote to the unit) is turned off.
A220796
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage or
improper operation. Size the wires in accordance with NEC and
local codes.
Use the following steps to wire the indoor unit.
NOTE: Wiring in this section is for the base unit ONLY. Auxiliary
Electric Heat wiring is covered in "Step 4 - Installing Ductwork" on
page 11.
18
Electrical disconnect
Electrical heater unit power wires
Electrical
heater unit
CAUTION
WARNING
CAUTION