Air Filter; I1. Unit Top Removal; Condenser Coil, Evaporator - Payne PA1Z030 Installation, Start-Up And Service Instructions Manual

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Table 7 -- Accessory Electric Heat Pressure Drop
(in. wg)
HEATER
kW
530
HEATER
kW
5-20
The minimum maintenance requirenmnts
for" this equipment
are as follows:
1. Inspect air filter(s) each month. Clean or replace when
necessary.
2. Inspect indoor coil, outdoor coil, drain pan, and condm>
sate drain each cooling season for" cleanliness. Clean
when necessary.
3. Inspect blower motor and wheel for cleanliness each cool-
ing season. Clean when necessary. Fox" first heating sea-
son, inspect blower wheel bimonthly to determine proper
cleaning fi'equency.
4. Check electrical connections for tighmess and controls
for proper operation each cooling season. Service when
necessary.
5. Check the drain channel in the top cover periodically
fox"blockage (leaves, insects). Clean as needed.
I. AIR FILTER
Inspect air filter(s) at least once each month and replace
(throwaway-type) or clean (cleanable type) at least twice dur
ing each cooling season or whenever the filters become clogged
with dust and lint.
Replace filters with the same dimensional size and type as
originally provided, when necessary.
II. UNIT TOP REMOVAL (CONDENSER-COIL SIDE)
NOTE: When performing maintenance or service procedures
that require removal of the unit top, be sure to perform all
of the routine maintenance procedures that require top
removal, including coil inspection and cleaning, and conden-
sate drain pan inspection and cleaning.
Only qualified service personnel should perform mainte-
nance and service procedures that require unit top removal.
Refer" to the following top removal procedures:
1. Remove 7 screws on unit top cover surface. (Save all
screws.)
2. Remove 2 screws on unit top cover flange. (Save all screws,)
3. Lift top fi'om unit carefully. Set top on edge and make
sure that top is supported by unit side that is opposite
duct (or plenum) side.
4. Carefully replace and secure unit top to unit, using screws
removed in Steps 1 and 2, when maintenance and/or serv-
ice procedures are completed.
III. EVAPORATOR BLOWER AND MOTOR
Fox" longer life, operating economy, and continuing efficiency,
clean accumulated dirt and grease from the blower wheel and
motor annually.
To clean the blower wheel:
1. Access the blower assembly as follows:
a. Remove top access panel.
b. Remove 3 screws that hold blower orifice ring to blower
housing. Save screws.
c. Loosen setscrew(s) which secure wheel to motor shaft.
2. Remove and clean blower wheel as follows:
a. Lift wheel from housing. When handling and/or clean
ing blower wheel, be sure not to disturb balance weights
(clips) on blower wheel vanes.
b. Remove caked-on dirt from wheel and housing with
a brush. Remove lint and/or dirt accumulations from
wheel and housing with vacuum cleaner, using a soft
brush attachment. Remove grease and oil with a mild
solvent.
c. Reassemble blower into housing. Place upper orifice
ring on blower to judge location of the blower wheel.
Blower wheel should be approximately 0.2 in. below
bottom of orifice ring when centered correctly. Be sure
setscrews are tightened on motor and are not on round
part of shaft.
d. Set upper orifice ring in place with 3 screws removed
in Step 1.
e. Replace top access panel.
IV. CONDENSER COIL, EVAPORATOR COIL, AND CONDEN-
SATE DRAIN PAN
Inspect the condenser coil, evaporator coil, and condensate
drain pan at least once each year. Proper inspection and clean-
ing requires the removal of the unit top. See Unit Top
Removal section on thLs [)age.
The coils are easily cleaned when dry; therefore, inspect and
clean the coils either before or after each cooling season.
Remove all obstructions (including weeds and shrubs) that
interfere with the airflow through the condenser coil. Straighten
bent fins with a fin comb. If coated with dirt or lint, clean the
coils with a vacumn cleaner, using a soft brush attachment.
Be carefnl not to bend the fins. If coated with oil or grease,
clean the coils with a mild detergent-and-water solution. Rinse
coils with clear" water, using a garden [rose. Be careful not to
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