Manual

_ Installation Instructions
Do not let refrigerant lines come in direct contact with
foundation. When running refrigerant lines through the
foundation or wall, the openings should be made large
enough to allow for a sound absorbing material to be
placed or installed between the tubing and the foundation.
This will prevent noise transmission between the tubing
and the wall section (foundation) or the building.
Installation Instructions For Condensing
Units That Are Higher Than Evaporator
It is recommended that vertical suction risers not be up-
sized. Proper oil return to the compressor should be main-
tained with suction gas velocity. If velocities drop below
1500 fpm (feet per minute), oil return will be decreased. An
oil trap should be installed every 20' of vertical suction line
riser (condenser above evaporator,) Refer to line sizing
charts,
Figure4[ OilTraps
10" Max
Min,
0 ft.
Line Valves
The outdoor condensing unit is supplied with straight sweat
brass service valves with copper stubs,
All line valves are positioned to seal the refrigerant in the
condensing unit with gauge ports open to connecting lines
when the Schraeder valve is depressed. Gauge ports have
Schraeder installed and require use of charging hoses with
depressors.
Split System Condensers I
Brazing Connections
Fire Hazard
Refrigerant and oil mixture under pressure could
ignite as it escapes and contacts brazing torch
resulting in Fire. Make sure the refrigerant charge
is properly removed from both the high and low
sides of the system before brazing any compo-
nent or lines.
FAILURE TO DO SO COULD RESULT IN BODILY
INJURY OR DEATH.
Before making braze connections, be sure all joints are
clean. Before heat is applied for brazing, nitrogen should
be flowing through the tubing to prevent oxidation and
scale formation on the inside of the tubing.
Liquid & Suction Lines
Fully annealed refrigeration lines should be used when
installing the system.
The following is the recommended method for making
braze connections at the refrigerant line connections:
1. Clean refrigerant tube end with emery cloth or steel
brush.
2. Use a suitable brazing alloy for copper to copper joints,
3, Insert tubing into swage fitting connection,
4. Apply heat absorbing paste or heat sink product to pre-
vent damage to the service valve,
CAUTION
Do not heat valve body above 250 degrees F.
5, Braze joint.
6. Quench the joint and tubing with water using a wet rag.
Leave rag on fitting body and re-wet with water to help cool
area.
Evacuating, And Charging Instructions
NOTE
Intentional release of CFC or HCFC Refrigerant to the
Atmosphere violates Federal Law. It may also violate
State and Local Codes. Check all Federal, State and
Local Codes before proceeding.
These instructions are intended for use with condensing
units that are precharged at the factory with adequate re-
frigerant to handle 25 feet.
NOTE: Do not use any portion of the charge for purging or
leak testing. It is mandatory that a thorough evacuation of
the refrigerant in the piping and evaporator be performed.
The liquid line and suction line service valves have been
closed after final testing at the factory. Do not disturb
these valves until the lines have been leak checked
and evacuated or the charge in the unit may be lost.
LIJ