Manual

_ Installation Instructions Split System Condensers I
REFRIGERATION PIPING & CHARGING
The recommended method of addition or removal of refrig-
erant is by weight.
Some matching coils may need more refrigerant than the
factory charge. If you can't determine charge by weight,
then check charge by superheat method and performance
curves. The oil charge is sufficient for 50 feet.
For oil requirements refer to Figure 5. For piping lengths
up to 75 feet refer to Figure 6 for pipe size, and Figure 7 for
refrigerant adjustment.
On applications where liquid fioodback to the compressor
is likely to occur, use of a crankcase heater is recom-
mended.
Figure 5
Distance
(Feet)
0-50
51
60
75
- Addition of Refrigeration Oil
Suction Line Size
5/8, 3/4, 7/8 1-1/8
1 oz. 2 oz.
2 oz. 4 oz.
3 oz. 6 oz.
Figure 6 - LINE SIZING
Model Series
All Series
All Series
Size-ton Liquid Suction
1 1/2 to 3 3/8" 3/4"
3 1/2 to 5 3/8" 7/8"
Figure 7 Addition of Refrigeration Charge
Liquid Line Diameter oz. Per Linear Ft. *
3/8 .60
1/2 1.20
Electrical Wiring
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.
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 or a properly driven and electrically grounded ground
rod.
Wiring Connections
Route Low Voltage wiring through entrance into area sep-
erated by insulating paper and make ALL low voltage con-
nections to the low voltage pigtails in this area. (Two Yellow
wires, AC or W,Y,O,BL, & R for HP). The pigtail wires have
600V insulation meeting approval for use in high voltage
areas.
See Figures 8 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 A/C Control Box
mtactor
und Lug
Wires
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 up to con-
nect to Contactor and Ground Lug.
Line Voltage
Entrance
Voltage
intrance
LL Low Voltage
Connections MUST be
made in this AREA
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