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After the electric heating wiring is connected, please
confirm before power on:
• Check all wiring and ensure secure connection of
all wiring.
• Ensure that wire size is properly selected per NEC
or local codes.
* Use copper wire only to connect unit. If other than uncoated (non-plated) 75°C copper
wire (solid wire for 10 AWG and smaller, stranded wire for larger than 10 AWG) is used
consult applicable tables of the National Electric Code (ANSI/NFPA 70).
UNITS WITHOUT ELECTRICAL HEAT Branch Circuit
Unit Volts-Phase
Rated
Current (A)
Min Ckt Amps
Min Wire Size
AWG*
Fuse/Ckt Bkr
Amps
18K 208/230-1 2.0 2.5 16# 15.0
24K 208/230-1 3.0 4.0 16# 15.0
30K 208/230-1 3.5 4.5 16# 15.0
36K 208/230-1 4.0 5.0 16# 15.0
48K 208/230-1 6.0 7.5 16# 15.0
60K 208/230-1 7.0 9.0 16# 15.0
Specifications
Number
of circuit
breakers
Number
of relays
Number of
power cord
groups
Number of
power cord
grounding
screws
3kW 1 1 2 2
5kW 1 1 2 2
8kW 1 2 2 2
10kW 1 2 2 2
15kW 2 3 3 3
20kW 2 4 3 3
25kW 3 5 4 4
NOTICE
The specification may be different between different models, please refer to
indoor unit’s nameplate.
NOTICE
Electric auxiliary heating
wiring diagram packed with
the accessories.
NOTICE
If branch circuit wire lenght
exceeds 100 ft (30.5m),
consult NEC 210-19a to
determine maximum wire
length. Use 2% voltage drop.
Indoor Unit
Installation
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