Installation guide

Sweat Connection
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Service valves must be wrapped in a heat-sinking
material such as a wet cloth while brazing.
Use refrigeration grade tubing. Service valves are closed from
factory and ready for brazing. After wrapping service valve with
a wet cloth, braze sweat connections using industry accepted
methods and materials. Consult local code requirements.
Refrigerant tubing and indoor coil are now ready for leak testing.
This check should include all field and factory joints.
Table 1--Refrigerant Connections and Recommended Liquid and Vapor Tube Diameters (In.)
LIQUID
UNIT SIZE
018, 024
030, 036
042, 048
060
Notes:
Connection
Diameter
3/8
3/8
3/8
3/8
1. Tube diameters are for total equivalent lengths up to 80 ft..
2. Do not appty capillary tube or fixed orifice indoor coils to these units.
Tube
Diameter
3/8
3/8
3/8
3/8
R&TED VAPOR
(up to 80 ft.*)
Connection
Diameter
5/8
3/4
7/8
7/8
Tube
Diameter
5/8
3/4
7/8
1 1/8
* For Tubing Set lengths between 80 and 200 ft. horizontal or 20 ft. vertical differential (250 ft,Totat Equivalent Length), refer to the Longline Guideline- Air
Conditioners and Heat Pumps using R-22
Table 2--Accessory Usage
REQUIRED FOR LOW-AMBI- REQUIRED FOR SEA
REQUIRED FOR LONG LINE
Accessory ENT APPLICATIONS COAST APPLICATIONS
(Below 55 °F) APPLICATIONS* (Over 80 Ft.) (Within 2 miles)
Crankcase Heater Yes
Evaporator Freeze Thermostat Yes
Winter Start Control Yes t
Accumulator No
Compressor Start Assist Capacitor Yes
and Relay
Motor Master® Control
or Yes
Low-ambient Pressure Switch
Support Feet Recommended
Liquid Line Solenoid Valve No
Ball Bearing Fan Motor Yesn:
For Tubing Set lengthsbetween 80 and 200 ft, horizontal or 20 ft. vertical differential
ditioners and Heat Pumpsusing R-22
Yes No
No No
No No
No No
Yes No
No No
No Recommended
See Long- Line Application No
Guideline
No No
250 ft.Total Equivalent Length), refer to the Longline Guideline - Air Con-
SRequiredfor low-ambient controller (full modulation feature) and Motor Master, control only.
tOniy when low pressure switch is used.