Outdoor Unit Connected To Factory-Approved Indoor Unit; Mechanical Line Set Connections; Install Liquid-Line Filter Drier - Indoor; Refrigerant Tubing Connection - Outdoor - Bryant Evolution Extreme 191VAN Installation Instructions Manual

191VAN Evolution™ Extreme Variable Speed Air Conditioner: Installation Instructions
Outdoor Unit Connected to Factory-Approved Indoor
Unit
When outdoor unit is connected to factory-approved R-454B indoor
unit, the outdoor unit contains correct system refrigerant charge for
operation with smallest internal volume factory-approved, AHRI-rated
indoor unit when connected by 15 ft. (4.57 m) of field-supplied or
factory-accessory tubing, and factory-supplied filter drier. Check
refrigerant charge for maximum efficiency.
NOTE: If the indoor furnace coil width is more than the furnace casing
width, refer to the indoor coil Installation Instructions for transition
requirements.

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.

Install Liquid-Line Filter Drier - Indoor

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 above 5-in. (127 mm) liquid tube.
4. Connect and braze liquid refrigerant tube to the filter drier.
CAUTION
!
UNIT DAMAGE HAZARD
Failure to follow this caution may result in unit damage or improper
operation.
Installation of filter drier in liquid line is required.
Filter drier must be wrapped in a heat-sinking material such as a wet
cloth while brazing
Fig. 5 – Liquid-Line Filter Drier

Refrigerant Tubing Connection - Outdoor

Connect vapor tube to fitting on outdoor unit vapor service valves (see
Table 1).

Sweat Connections

CAUTION
!
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage or
improper operation.
• Use a brazing shield
• Wrap service valves with wet cloth or heat sink material.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

FIRE HAZARD

Failure to follow 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.
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.
Use refrigerant grade tubing. Service valves are closed from factory and
ready for brazing. Clean line set tube ends with emery cloth or steel
brush. Remove any grit or debris.
Insert line set tube ends into service valve tube stubs.
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.
Braze joints using a Sil-Fos or Phos-copper alloy. Consult local code
requirements. Refrigerant tubing and indoor coil are now ready for leak
testing. This check should include all field and factory joints.

Pressure Test Tubing And Indoor Coil

Refrigerant tubes and indoor coil should be pressure tested with an inert
gas such as nitrogen. Pressurize the system with the inert gas to the Low
Side Test Pressure listed on the outdoor unit rating plate

Evacuate Refrigerant Tubing and Indoor Coil

A05178
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage or
improper operation.
Never use the system compressor as a vacuum pump.
Refrigerant tubes and indoor coil should be evacuated using the
recommended deep vacuum method of 500 microns. The alternate triple
evacuation method may be used.
evacuation method. Always break a vacuum with dry inert gas prior to
opening the refrigerant system for servicing.
6
WARNING
!
CAUTION
!
WARNING
!
EXPLOSION HAZARD
Failure to follow this warning could result in
equipment damage or improper operation
Never exceed the test pressures listed on the
rating plate when pressure testing an outdoor
unit.
CAUTION
!
See Service Manual for triple