Electrical Wiring; Electrical Installation; Wiring Diagram; Electrical Data - Westinghouse WHM36SZA21S Instrucciones De Uso E Instalación

5. Electrical Wiring

5.1 Electrical Installation

CAUTION
·
Before proceeding with electrical connections, make certain the power supply matches the information on the
unit rating label. See unit wiring label for proper high and low-voltage wiring. Make all electrical connections in
accordance with the NEC and any local codes or ordinances that may apply. Refer to the NEC(USA) or CSA
(Canada) for wire sizing. Use copper wire only.
·
Every installation must include an NEC(USA) or CSA (Canada) approved over-current protection device.
WARNING
Disconnect all power before servicing or installing this unit.
To avoid electrical shock, please ensure the air conditioner is properly grounded.
All routing of electrical wiring must be made through provided electrical knockouts. Do not cut, puncture or
alter the cabinet provided for electrical wiring.
Knockouts are provide on the indoor unit top panel and sides of the cabinet to allow for the entry of the power
supply cable conductors. If the knockouts on the cabinet sides are used for electrical conduit, an adapter ring
must be used in order to meet UL 1995 safety requirements. An MEC or CEC approved strain relief is to be
used at this entry point. Some codes/municipalities require the supply wire to be enclosed in conduit. Consult
your local codes.

Wiring diagram

W1
B
C
R
Y
G
Thermostat
NOTE:
(1) Do
not
connect
dashed
line
when
electric
heater
is
not
used.

(2) Wiring
must
be
performed
according
to
wiring
diagram
that
pasted
on
indoor
unit.
(3) The SI wire between the indoor and outdoor units is not indispensable, especially when the outdoor unit is connected to
an indoor unit of a different brand. It is more energy-saving when the outdoor unit is connected to an indoor unit of the
same brand by SI wire. However, it still can run without it.
(4) Since the thermostat is locally provided, the terminal block in the diagram may differ from the actual one. The letter Y is the
same as Y1.

Electrical data

Model
Power Supply
(Capacity)
24K/36K 208/230V ~/60Hz
48K/60K 208/230V ~/60Hz
G R C W1 SI
Indoor unit
L1 L2 PE
Power supply
ELB
Rated Current Nominal Sensitive
(A) Current (mA)
15 30
15 30
Installation and Maintenance
(L1) (L2) ( )
C B Y W SI
Outdoor unit
Power supply
Power Source
Cable Size
3×16AWG
3×16AWG
8
Power
terminal
panel
Transmitting Thermostat
Cable Size Signal Size
5×18AWG/
5×16AWG
6×18AWG
5×18AWG/
5×16AWG
6×18AWG