Safety Considerations; Introduction; Installation Guideline; Residential New Construction - Bryant Base Series Application Manual And Service Manual

Residential Air Conditioners and Heat Pumps Using R-22 and Puron® Refrigerant: Application Guideline and Service Manual

SAFETY CONSIDERATIONS

Installation, service, and repair of these units should be attempted only
by trained service technicians familiar with standard service instruction
and training material.
All equipment should be installed in accordance with accepted practices
and unit Installation Instructions, and in compliance with all national and
local codes. Power should be turned off when servicing or repairing
electrical components. Extreme caution should be observed when
troubleshooting electrical components with power on. Observe all
warning notices posted on equipment and in instructions or manuals.
WARNING
!
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could result in personal injury or
equipment damage.
Puron (R-410A) systems operate at higher pressures than standard R-22
systems. Do not use R-22 service equipment or components on Puron
equipment. Ensure service equipment is rated for Puron
Refrigeration systems contain refrigerant under pressure. Extreme
caution should be observed when handling refrigerants. Wear safety
glasses and gloves to prevent personal injury. During normal system
operations, some components are hot and can cause burns. Rotating fan
blades can cause personal injury. Appropriate safety considerations are
posted throughout this manual where potentially dangerous techniques
are addressed.

INTRODUCTION

This document provides required system information necessary to
install, service, repair or maintain the family air conditioners and heat
pumps using R22 or Puron refrigerant.
Refer to the unit Product Data for rating information, electrical data,
required clearances, additional component part numbers and related
pre-sale data. Installation Instructions are also available per specific
models.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

INSTALLATION GUIDELINE

Residential New Construction

Specifications for these units in the residential new construction market
require the outdoor unit, indoor unit, refrigerant tubing sets, metering
device, and filter drier listed in Product Data (PD). DO NOT DEVIATE
FROM PD. Consult unit Installation Instructions for detailed
information.

Add-On Replacement (Retrofit) - R22 to Puron

Specifications for these units in the add-on replacement/retrofit market
require change-out of outdoor unit, metering device, and all capillary
tube coils. Change-out of indoor coil is recommended. There can be no
deviation.
1. If system is being replaced due to compressor electrical failure,
assume acid is in system. If system is being replaced for any other
reason, use approved acid test kit to determine acid level. If even
low levels of acid are detected install factory approved, 100 percent
activated alumina suction-line filter drier in addition to the factory
supplied liquid-line filter drier. Remove the suction line filter drier
as soon as possible, with a maximum of 72 hr.
2. Drain oil from low points or traps in suction-line and evaporator if
they were not replaced.
3. Change out indoor coil or verify existing coil is listed in the Product
Data.
4. Unless indoor unit is equipped with a Puron approved metering
device, change out metering device to factory supplied or
field-accessory device specifically designed for Puron.
5. Replace outdoor unit with Puron outdoor unit.
6. Install factory-supplied liquid-line filter drier.
!
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage or
improper operation.
Never install suction-line filter drier in the liquid-line of a Puron
system.
7. If suction-line filter drier was installed for system clean up, operate
system for 10 hr. Monitor pressure drop across drier. If pressure
drop exceeds 3 psig, replace suction-line and liquid-line filter
driers. Be sure to purge system with dry nitrogen and evacuate
when replacing filter driers. Continue to monitor pressure drop
across suction-line filter drier. After 10 hr of runtime, remove
suction-line filter drier and replace liquid-line filter drier. Never
leave suction-line filter drier in system longer than 72 hr (actual
time).
8. Charge system. (See unit information plate.)

Seacoast

Coastal units are available in selected models and sizes of Air
Conditioners and Heat Pumps. These units have protection to help resist
the corrosive coastal environment. Features include:
• Armor plate fins and epoxy coated coils
• Complete baked-on paint coverage
(both sides of external sheet metal and grilles)
• Paint coated screws
Coastal environments are considered to be within 2 miles of the ocean.
Salt water can be carried as far away as 2 miles from the coast by means
of sea spray, mist or fog.
prevailing wind direction, relative humidity, wet/dry time, and coil
temperatures will determine the severity of corrosion potential in the
coastal environment.
4
CAUTION
Line-of-sight distance from the ocean,