System Maintenance; Planned Maintenance - Daikin SWP Series Installation Manual

Planned Maintenance

Improper maintenance can cause equipment damage, severe
personal injury, or death . Installation and maintenance must
be performed only by trained, experienced personnel who are
familiar with local code and regulations and are experienced
with this type of equipment .
Moving machinery and electrical power hazards . Can cause
severe personal injury death . Disconnect and lock off power
before servicing equipment .
Sharp edges are inherent to sheet metal parts, screws, clips
and similar items . May cause personal injury . Exercise caution
and wear protective gear when servicing equipment .
IM 1032-2 • Self-Contained Air Conditioning System
WARNING
WARNING
CAUTION
Planned maintenance is the best way to help avoid
unnecessary expense and inconvenience . At regular intervals
have a qualified service technician inspect this system. The
required frequency of inspections depends on installation
and operating duty . Routine maintenance should cover the
following items:
1 . Tighten all belts, setscrews, and wire connections . (See
Table 12 on page 34) . Retighten all power connections
every six months .
2 . Clean the evaporator or economizer coils mechanically
or with cold water, if necessary . Usually any fouling is
only matted on the entering air face of the coil and can
be removed by brushing .
3 . Clean the condenser and economizer tubes periodically .
Clean condenser and economizer coils chemically or
mechanically . Keep tubing clean to maintain system
performance . (Condenser head removal instructions
follow)
4 . Lubricate motor and fan shaft bearings .
5 . Align or replace belts as needed .
6 . Replace filters as needed.
7 . Check refrigerant sightglass . If sightglass is not solid
with steady-state full load operation of unit, check for
refrigerant leaks .
NOTE: A partially full sightglass is not uncommon at part
load conditions . Check for proper superheat .
8 . Check for condensate drain blockage . Clean condensate
pan as needed .
9 . Check power and control voltages .
10 . Check running amperage .
11 . Check operating temperatures and pressures .
12 . Check and adjust temperature and pressure controls .
13 . Check and adjust linkages .
14 . Check operation of all safety controls .
15 . Lubricate door latch mechanisms .
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