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OUTDOOR UNIT
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These instructions are intended as an aid to qualified, licensed service
personnel for proper installation, adjustment and operation of this unit. Read
these instructions thoroughly before attempting installation or operation.
Failure to follow these instructions may result in improper installation, adjust-
ment, service or maintenance possibly resulting in fire, electrical shock, prop-
erty damage, personal injury or death.
4.0 ELECTRICAL WIRING
Field wiring must comply with the National Electric Code (C.E.C. in Canada) and any
applicable local ordinance.
WARNING
Disconnect all power to unit before installing or servicing. More than one
disconnect switch may be required to de-energize the equipment. Hazard-
ous voltage can cause severe personal injury or death.
4.1 POWER WIRING
It is important that proper electrical power is available for connection to the unit model
being installed. See the unit nameplate, wiring diagram and electrical data in the
installation instructions.
• If required, install a branch circuit disconnect of adequate size, located within sight
of, and readily accessible to the unit.
•
IMPORTANT
: After the Electric Heater is installed, units may be equipped with
one, two, or three 30/60 amp. circuit breakers. These breaker(s) protect the internal
wiring in the event of a short circuit and serve as a disconnect. Circuit breakers
installed within the unit do not provide over-current protection of the supply wiring
and therefore may be sized larger than the branch circuit protection.
• Supply circuit power wiring must be 75°C minimum copper conductors only. See
Electrical Data in this section for ampacity, wire size and circuit protector require
ment. Supply circuit protective devices may be either fuses or “HACR” type circuit
breakers.
• Power wiring may be connected to either the right, left side or top. Three 7/8”,
1-3/8”, 1-3/4” dia. concentric knockouts are provided for connection of power wiring
to unit.
• Power wiring is connected to the power terminal block in unit electric cabinet.
3.4 INSTALLATION IN AN UNCONDITIONED SPACE
IMPORTANT:
There are two pairs of coil rails in the air handler for default and counter
flow application. If the air handler is installed in an unconditioned space, the two
unused coil rails should be removed to minimize air handler surface sweating. The coil
rails can be easily removed by taking off the 6 mounting screws from both sides of the
cabinet.
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PLUG PLATE
NOTES:
1: For the Air handler without installing Electric Heat; connect the supply power to
Ā
L1
ā
and
Ā
L2
ā
.
2: For the Air handler with Electric Heat, connect the supply power to circuit breaker. If you order the Heat Kit without
circuit breaker, connect the power supply to the terminal block provided on the heater.
3: Remove the red lead from
Ā
240V
ā
terminal and then connect the red lead to
Ā
208V
ā
terminal on the transformer for 208 volts.
4: Exchange the blower motor red wire and blue wire for low speed ;exchange the blower motor red wire and black wire for high speed
default as medium speed of factory settings.
5: TDR has a 1-20s on delay when
Ā
G
ā
is energized and a 70-110s off delay when
Ā
G
ā
is de-energized.
6:
Ā
W2
ā
wire is not provided in some models, and tap and seal the unused wire.
HEATER KIT PLUG
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