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C4H5S, H4H5S, T4H5S: Installation Instructions
Fig. 4 – Vapor Service Valve
Brazing Connections
Clean line set tube ends with emery cloth or steel brush. Remove any grit
or debris.
Connect vapor tube to fitting on outdoor unit vapor service valves (see
Table
2). Connect liquid tubing to adapter tube on liquid service valve.
Use refrigerant grade tubing.
CAUTION
!
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.
Apply heat absorbing paste or heat sink product between service valve
and joint. Wrap service valves with a heat sinking material such as a wet
cloth.
After wrapping service valve with a wet cloth, tubing set can be brazed
to service valve using either silver bearing or non–silver bearing brazing
material. Do not use soft solder (materials which melt below
800°F/427°C). Braze joints using a Sil-Fos or Phos-copper alloy.
Consult local code requirements.
Some outdoor units contain a mechanical fitting at the liquid distributor.
This connection is not field serviceable and should not be disturbed.
For Liquid Service Valve - Braze lineset to adapter tube BEFORE
bolting adapter to valve. This helps prevent overheating and damage to
plastic washer or o-ring.
For Vapor Service Valve - remove valve core from schrader port on
Service Valve BEFORE brazing. This helps prevent overheating and
damage to valve seals (refer to
is completed.
WARNING
!
FIRE HAZARD
Failure to following this warning could result in personal injury, death
and/or property damage.
Refrigerant and oil mixture could ignite and burn as it escapes and
contacts brazing torch. Make sure the refrigerant charge is properly
removed from both the high and low sides of the system before brazing
any component or lines.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Fig.
4). Replace valve core when brazing
BURN HAZARD
Failure to follow this Caution may result in personal injury.
Components will be HOT after brazing. Wear appropriate personal
protective equipment and allow to cool before handling parts and
equipment
Table 2 – Refrigerant Connections and Recommended Liquid
and Vapor Tube Diameters (In.)
A14236
UNIT SIZE
Connection
Diameter
18, 24
3/8
30, 36
3/8
42, 48
3/8
60
3/8
*. Units are rated with 25 ft. (7.6 m) of lineset. See Product Data sheet for
performance data when using different size and length linesets.
Notes:
1. Do not apply capillary tube indoor coils to these units.
2. For Tubing Set lengths between 80 and 200 ft. (24.38 and 60.96 m) horizontal or 20
ft. (6.09 m) vertical differential 250 ft. (76.2 m) Total Equivalent Length, refer to
the Residential Piping and Long Line Guideline – Air Conditioners and Heat
Pumps using Puron refrigerant.
Mechanical Line Set Connections
If using mechanical or crimp-type line set connections, follow crimp tool
manufacturer's instructions.
NOTE: Should the use of mechanical fittings cause failure of the fittings
or failure of the equipment, such would not be covered under the
standard warranty.
Installing with Indoor Piston
Heat pumps may only be installed with piston metered indoor units as
replacement components in a piston system.
non-rated heat pump with a piston indoor the correct piston must be
installed, which should be listed in the indoor installation instructions or
product data. Replacement pistons can be ordered from Replacement
Components.
Install Liquid Line Filter Drier Indoor
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage or
improper operation.
1. Installation of filter drier in liquid line is required.
2. Filter drier must be wrapped in a heat-sinking material such as a
wet cloth while brazing.
Refer to
Fig. 5
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) long liquid tube from step 1.
4. Connect and braze liquid refrigerant tube to the filter drier.
IMPORTANT: Installation of the filter drier in liquid line is required.
4
CAUTION
!
LIQUID
RATED VAPOR
Tube
Connection
Diameter
Diameter
3/8
5/8
3/8
3/4
3/8
7/8
3/8
7/8
When installing a
CAUTION
!
*
Tube
Diameter
5/8
3/4
7/8
1–1/8
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