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I Split System Condensers Installation Instructions
Recommended Method Of Evacuating A
System
1. Connect the vacuum pump to the suction and liquid line
gauge ports.
The service valve cap is a primary seal for the valve and
must be properly tightened to prevent leaks. Make sure cap
is clean and apply refrigerant oil to threads and sealing sur-
face of cap.
2. If the evacuation is being performed on a new system
installation, the valves should be kept in the "front seated"
(closed) position. This will allow the mechanic to evacuate
the refrigeration lines and the indoor coil, without disturbing
the factory charge in the outdoor unit.
For valves with retaining rings: Replace service valve
cap and torque to; 8-11 ft. Ibs. on 1/4" and 3/8" valves,
12-16 ft. Ibs. on 5/8" and 3/4", 15-21 ft. Ibs on 7/8" valves. If
torque wrench is not available, tighten cap finger tight and
then tighten one (1) additional wrench flat or 1/6 of a turn.
3. Follow the vacuum pump manufacturer's instructions.
Allow the pump to operate until the system has been eva-
cuated down to 300 microns. Allow the pump to continue
running for an additional 15 minutes. Turn offthe pump and
leave the connections secured to the two service valves.
After 5 minutes, if the system fails to hold 500 microns or
less, check all connections for tight fit and repeat the evac-
uation procedure.
4. Isolate the vacuum pump from the system by closing the
shutoff valves on the gauge bar. Disconnect the vacuum
pump.
Valve Actuation: Service Valves
For valves with rolled tops: Replace service valve cap
tighten cap finger tight and then tighten one (1) additional
wrench flat or 1/6 of a turn to properly seat the sealing sur-
faces. Subsequent installations will seat with 1/2 to 1
wrench flat of turning.
Gauge Ports: All Valves
Check for leaks at the schrader port and tighten valve core
if necessary. Install plastic caps finger tight.
Remove the service valve cap, if there is a male valve stem
see instructions for Ball Valves. For the standard service
valve there are two variations, but both have internal
stems. The first style uses an internal snap ring to retain the
valve stem and the second has a rolled top and also has
finer threads on the valve cap. NOTE: You may encounter
more than one type of valve on a unit.
For service valves fully insert a hex wrench into the stem. A
back-up wrench is required on the valve body to open the
valve stem. Backout counterclockwise until the valve stem
stops or just touches the retaining ring. NOTE: THIS IS
NOT A BACKSEATING VALVE, For valves with retainer
rings care must be taken to prevent dislodging them when
opening valve.
Electrical Wiring
Ball Valves
On models with ball type valves use a 6" crescent wrench
to rotate the valve stem 90° counter clockwise. Retighten
valve cap to 6-8 ft. Ibs. If torque wrench is not available,
tighten cap finger tight and then tighten one (1/2) additional
wrench flat.
REFRIGERATION PIPING & CHARGING
For extended piping over the recommended 75 feet please
refer to Extended Length Refrigerant Piping Manual (Part #
42106111400).
Permanently ground unit in accordance with the National
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
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
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, & R for HP). The pigtail wires have 600V
insulation meeting approval for use in high voltage areas.
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