Electrical Data; Wiring; Equipment Damage Hazard - Midea DLCERAA12AAJ Service Manual

ELECTRICAL DATA

Cooling Only
Power Supply
Compressor
Outdoor Fan Motor
Heat Pump
Power Supply
Compressor
Outdoor Fan Motor
*Permissible limits of the voltage range at which the unit will operate satisfactorily.
LEGEND
FLA - Full Load Amps
MCA - Minimum Circuit Amps
MOCP - Maximum Over-Current Protection
RLA - Rated Load Amps

WIRING

All wires must be sized per NEC (National Electrical Code) or CEC
(Canadian Electrical Code) and local codes. Use Electrical Data table
MCA (minimum circuit amps) and MOCP (maximum over current
protection) to correctly size the wires and the disconnect fuse or
breakers respectively.
Recommended Connection Method for Power and Communication
Wiring:
The main power is supplied to the outdoor unit. The field supplied 14/3
stranded wire with ground with a 600 volt insulation rating,
power/communication wiring from the outdoor unit to indoor unit
consists of four (4) wires and provides the power for the indoor unit.
Two wires are line voltage AC power, one is communication wiring (S)
and the other is a ground wire. Wiring between indoor and outdoor unit
is polarity sensitive. The use of BX wire is NOT recommended.
If installed in a high Electromagnetic field (EMF) area and
communication issues exists, a 14/2 stranded shielded wire can be used
to replace L2/N and (S) between outdoor unit and indoor unit landing
the shield onto ground in the outdoor unit only.
32808001101
Table 6—Electrical Data
Outdoor Unit Size
Volts-PH-Hz
Max – Min*
127-104
Oper. Voltage
MCA
MOCP
RLA
FLA
Rated HP
Output
Outdoor Unit Size
Volts-PH-Hz (115V)
Max – Min*
127-104
Oper. Voltage
MCA
MOCP
RLA
FLA
Rated HP 0.054
Output
Specifications subject to change without notice.
12K 12K
(115V) (208/230V)
253-187
7 7
15 15
9.5 4.5
0.6 0.4
0.054 0.054
40 40
12K 9K
(208/230V) (208/230V)
253-187 253-187
13 8
20 15
10.5 5.5
0.6 0.4
0.054
40 40
CAUTION
!

EQUIPMENT DAMAGE HAZARD

Failure to follow this caution may result in equipment
damage or improper operation.
Wires should be sized based on NEC and local codes.
CAUTION
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage
or improper operation.
S Be sure to comply with local codes while running wire from
the indoor unit to the outdoor unit.
S Every wire must be connected firmly. Loose wiring may
cause the terminal to overheat or result in unit malfunction.
A fire hazard may also exist. Ensure all wiring is tightly
connected.
S No wire should touch the refrigerant tubing, compressor or
any moving parts.
S Disconnecting means must be provided and shall be located
within sight and readily accessible from the air conditioner.
S Connecting cable with conduit shall be routed through the
hole in the conduit panel.
18K
(208/230V) (208/230V)
253-187 253-187
11
15
7
0.5
0.065 0.068
48
12K 18K
(208/230V) (208/230V)
253-187
10 15
15 20
6.8 11.5
0.4 0.5
0.054 0.054
40 40
24K
16
25
11
0.6
45
24K
253-187
18
25
12
0.6
0.068
50
9