Bryant 542J Series, Installation, Start-Up And Service Instructions Manual

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CARE AND MAINTENANCE
To ensure continuing high performance, and to minimize the
possibility of premature equipment failure, periodic mainte-
nance must be performed on this equipment. This combina-
tion heating/cooling unit should be inspected at least once each
year by a qualified service person.
NOTE TO EQUIPMENT OWNER: Consult your local dealer
about the availability of a maintenance contract.
WARNING: The ability to properly perform mainte-
nance on this equipment requires certain expertise,
mechanical skills, tools, and equipment. If you do not
possess these, do not attempt to perform any mainte-
nance on this equipment other than those procedures
recommended in the User’s Manual. FAILURE TO HEED
THIS WARNING COULD RESULT IN SERIOUS PER-
SONAL INJURY AND POSSIBLE DAMAGE TO THIS
EQUIPMENT.
The minimum maintenance requirements for this equipment
are as follows:
1. Inspect air filters each month. Clean or replace when
necessary.
2. Inspect cooling coil, drain pan, and condensate drain each
cooling season for cleanliness. Clean when necessary.
3. Inspect blower motor and wheel each heating and
cooling season. Clean and lubricate (if required) when
necessary.
4. Check electrical connections for tightness and controls
for proper operation each heating and cooling season.
Service when necessary.
5. Check and inspect heating section before each heating
season.
6. Check and clean vent screen if needed.
WARNING: Failure to follow these warnings could re-
sult in serious personal injury:
1. Turn off electrical power to the unit before perform-
ing any maintenance or service on the unit.
2. Use extreme caution when removing panels and parts.
As with any mechanical equipment, personal injury
can result from sharp edges, etc.
3. Never place anything combustible either on, or in con-
tact with, the unit.
4. Should overheating occur, shut off the electrical
supply.
I. AIR FILTER
CAUTION:
Never operate the unit without a suit-
able air filter in the return-air duct system. Always re-
place the filter with the same dimensional size and type
as originally installed. See Table 1 for recommended fil-
ter sizes.
Inspect air filters at least once each month and replace at
least twice during each heating and cooling season and when-
ever the filters become clogged with dust and lint.
Replace filters with the same dimensional size and type as
originally provided when necessary.
SERVICE
WARNING: Before beginning any maintenance, be
sure to turn off power at the main disconnect switch.
TAG THE SWITCH WITH A SUITABLE WARNING
LABEL.
I. CLEANING
Inspect unit interior at the beginning of each heating and cool-
ing season or as operating conditions require. Remove unit
top cover and/or side panels for access to unit interior.
A. Indoor Coil
Clean coil using a commercial coil cleaner or dishwasher de-
tergent in a pressurized spray canister. Wash both sides of
coil and flush with clean water.
B. Outdoor Coil
Clean outdoor coil annually and as required by location and
outdoor-air conditions. Inspect coil monthly and clean as
required.
C. Condensate DraIns
Check and clean each year at start of cooling season.
D. Filters
Clean or replace at start of each heating and cooling sea-
son or more often if operating conditions require. Refer to
Table 1 for type and size.
E. Outdoor-Air Inlet Screens
Clean screens with steam or hot water and a mild detergent.
Do not substitute throwaway filters for screens.
II. LUBRICATION
A. Compressors
Each compressor is charged with the correct amount of oil at
the factory. Observe the level in the sight glass immediately
after shutdown while the oil is still warm. If the oil level is
observed when the oil is cold, the level observed may be a
mixture of oil and refrigerant which is not a true indication
of the oil level. If oil level observed is not between the low
limit and high limit levels as indicated in Fig. 27, add oil un-
til it is in the correct range.
If oil charge is above sight glass, do not remove any oil until
the compressor crankcase heater has been energized for at
least 24 hours.
B. Fan Shaft Bearings
For 150 units, the bearings are permanently lubricated. No
field lubrication is required. For 180 units, lubricate bear-
ings at least every 6 months with suitable bearing grease.
Extended grease line is provided for far side fan bearing
(opposite drive side). Typical lubricants are given below:
MANUFACTURER LUBRICANT
Texaco Regal AFB-2*
Mobil Mobilplex EP No. 1
Sunoco Prestige 42
Texaco Multifak 2
*Preferred lubricant because it contains rust and oxidation inhibitors.
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