Installation guide
Table 1 - Accessory Usage
REQUIRED FOR LOW
AMBIENT COOLING APPLICATIONS REQUIRED FOR SEA COAST
(16 SEER Product Only) REQUIRED FOR LONG LINE APPLICATIONS 0Nithing 2
Accessory (Below 55°F/ 12,8°C) APPLICATIONS* miles/3,22km)
CompressorStart Assist
Capacitorand Relay NO No No
Crankcase Heater Yes,Standard Yes,Standard No
See Long Line Applications
Liquid LineSolenoidValve No Guideline No
SupportFeet Recommended No Recommended
Yes (Standardwith factory Yes (Standardwith factory Yes (Standardwith factory
Hard ShutoffTXV approved indoorunit) approved indoorunit) approved indoor unit)
Evaporator FreezeThermostat Yes No No
Low-Ambient Pressure Switch Yes No No
Isolation Relay Yes No No
For tubing line sets between 80 and 200 ft. (24.38 and 60.96 m) and/or 20 ft. (6.09 m) vertical differential, refer to Long Line Applications Guideline.
Table 2 - Refrigerant Connections and Recommended Liquid and Vapor Tube Diameters (In.)
RATED VAPOR
LIQUID up to 80 ft. (24.38 m)*
UNIT SIZE Connection Diameter Tube Diameter Connection Diameter Rated Tube Diameter
624, 924 3/8 3/8 3/4 3/4
636, 936 3/8 3/8 7/8 7/8
648, 948, 660, 960 3/8 3/8 7/8 1-1/8
Units are rated with 25 ft. (7.6 m) of lineset. See Specification sheet for performance data when using different size and length linesets.
Notes:
1. Do not apply capillary tube or fixed orifice indoor coils to these units.
2. For Tubing Set lengths between 80 and 200 ft. (24.38 and 60.96 m) horizontal or 35 ft. (10.7 m) vertical differential 250 ft. (76.2 m) Total Equivalent Length),
refer to the Long Line Applications Guideline.
EXPLOSION HAZARD
Failure to follow this warning could
result in death, serious personal
injury, and/or property damage.
Never use air or gases containing
oxygen for leak testing or operating
refrigerant compressors. Pressurized
mixtures of air or gases containing
oxygen can lead to an explosion.
Outdoor Unit Connected to Factory Approved
Indoor Unit
These outdoor units are carefully evaluated and listed with
specific indoor coils for proper system performance.
5. Remove adapter tube from bag and connect threaded
nut to liquid service valve. Tighten nut finger-tight and
then with wrench an additional 1/2 turn (15 ft-lb). DO
NOT OVER TIGHTEN!
Figure 3
1
Liquid Service Valve
--TEFLON ®SEAL
__L SWEAT/F LA RE
_L p_S_ONBo By ADAPTER
UID SERVICE VALVE
Install Adapter Tube
1. Remove plastic retainer holding outdoor piston in liquid
service valve.
2. Check outdoor piston size with matching number listed
on unit rating plate.
3. Locate plastic bag taped to unit containing adapter
tube.
4. Remove Teflon® seal from bag and install on open
end of liquid service valve. (See Fig. 3.)
Install Liquid Line Filter Drier Indoor
Refer to Fig. 4 and install filter drier as follows:
1. Braze 5 in. (127 mm) liquid tube to the indoor coil.
2. Wrap filter drier with damp cloth.
3. Braze filter drier to 5 in. (127 mm) liquid tube from
step 1.
4. Connect and braze liquid refrigerant tube to the filter
drier.
Specifications subject to change without notice. 428 01 1703 02