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I Installation Instructions R410-A Split System Condensers I
Electrical Wiring
A/C Control Box
Electrical Shock Hazard.
Shut off electric power at fuse box or service pan-
el before making any electrical connections.
Failure to shut off electric power can result in,
property damage, personal injury and/or death.
The supply voltage should be 208-230 volts (196 volt mini-
mum to 253 volts maximum) 60Hz single phase.
APPROVED FOR USE WITH COPPER CONDUCTORS
ONLY. DO NOT USE ALUMINUM WIRE.
REFER TO UNIT RATING PLATE FOR CIRCUIT
PROTECTION.
ALL Low Voltage
Connections MUST be
made in this AREA
Contactor
Low Voltage
Entrance
Ground Lug
Line Voltage
Entrance
Grounding
Permanently ground unit in accordance with the National
Electrical Code and local codes or ordinances. Use a cop-
per conductor of the correct size from the grounding termi-
nal in control box to a grounded connection in the service
panel ora properly driven and electrically grounded ground
rod.
Wiring Connections
Make all outdoor electrical supply (Line Voltage) connec-
tions with raintight conduit and fittings. Most codes require
a disconnect switch outdoors within sight of the unit.
Route Line Voltage wiring through entrance and through
hole in the bottom of the Control Box to connect to Contac-
tor and Ground Lug.
Route Low Voltage wiring through entrance ONLY and
make ALL low voltage connections to the low voltage pig-
tails in the area below the Control Box. (Two Yellow wires,
AC or W,Y,O,BL). The pigtail wires have 600V insulation
meeting approval for use in high voltage areas.
See Figures 10 thru 11 and Wiring Diagram on unit.
Use of Rigid Metal Conduit
It is recommended that wires be tied together or twisted to-
gether inside the conduit. This will minimize any buzzing
type sounds that could be produced with high current
loads, such as during starting. Under some conditions it
may be necessary to use a hard start kit to eliminate prob-
lem noises.
Control Box Access
Remove the four screws. Cover is notched so it will slide
out from under top edge of unit.
Figure 1 [ A/C Condenser Typical Low
! Voltage Connections
Indoor
Thermostat
( x2
R G
I I
(Compressor q
(Co
BL W
I J
Outdoor
Unit
ontactor)
Y--
nmon 24V)
A y _
INDOOR
GAS
BLOWER OR FURNACE
COIL
Start-Up Procedure
Start-up Procedure - Cooling Operation
1. Close electrical disconnects to energize system.
IJJ
.
Energize crankcase heater on units so equipped for
24Hrs, then proceed with Start UP.
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