WSHP-SVX01Q-EN
111
Maintenance
Preventive Maintenance
Maintenance on the unit is simplified with the following
preventive suggestions:
Filter maintenance must be performed to assure proper
operation of the equipment. Filters should be inspected at
least every three months, and replaced when it is evident
they are dirty. Filter sizing is shown in
Table 61, p. 111
:
Check the contactors and relays within the control panel at
least once a year. It is good practice to check the tightness
of the various wiring connections within the control panel.
A strainer (60 mesh or greater) must be used on an open
loop system to keep debris from entering the unit heat
exchanger and to ensure a clean system.
For units on well water, it is important to check the
cleanliness of the water-to-refrigerant heat exchanger.
Should it become contaminated with dirt and scaling as a
result of bad water, the heat exchanger will have to be back
flushed and cleaned with a chemical that will remove the
WARNING
Hazardous Service Procedures!
Failure to follow all precautions in this manual and on
the tags, stickers, and labels could result in death or
serious injury.
Technicians, in order to protect themselves from
potential electrical, mechanical, and chemical hazards,
MUST follow precautions in this manual and on the
tags, stickers, and labels, as well as the following
instructions: Unless specified otherwise, disconnect all
electrical power including remote disconnect and
discharge all energy storing devices such as capacitors
before servicing. Follow proper lockout/tagout
procedures to ensure the power can not be
inadvertently energized. When necessary to work with
live electrical components, have a qualified licensed
electrician or other individual who has been trained in
handling live electrical components perform these
tasks.
Table 61.
Filter sizing
Size (60 Hz) Size (50 Hz) Filter Size (Nominal) inches
GEH
006
—
15 x 20
009
006
15 x 20
012
009
15 x 20
015
012
15 x 20
018
015
18x24
024
018
18x24
030
024
18x24
035
030
19 x 26
042
036
19 x 26
048
042
21 x 30
060
048-060
21 x 30
072
—
20 x 25 (3)
090
072
20 x 25 (3)
120
090
20 x 25 (3)
150
120
20 x 25 (3)
180
150
20 x 25 (3)
GEV
006
—
16 x 20
009
006
16 x 20
012
009
16 x 20
015
012
16 x 20
018
015
20 x 20
024
018
20 x 20
030
024
20 x 20
036
030
20 x 25
042
036
20 x 25
048
042
24 x 30
060
048-060
24 x 30
072
—
20 x 20 (4)
090
072
20 x 20 (4)
120
090
20 x 20 (4)
150
120
20 x 25 (6)
180
150
20 x 25 (6)
240
180
20 x 25 (6)
300
240
20 x 25 (6)
EXH
006
—
15 x 20
009
—
15 x 20
012
—
15 x 20
015
—
15 x 20
018
—
18 x 24
024
—
18 x 24
030
—
19 x 26
036
—
19 x 26
042
—
21 x 30
048
—
21 x 30
060
—
21 x 30
070
—
21 x 30
EXV
006
—
16 x 20
009
—
16 x 20
012
—
16 x 20
015
—
16 x 20
018
—
20 x 20
024
—
20 x 20
030
—
20 x 25
036
—
20 x 25
042
—
24 x 30
048
—
24 x 30
060
—
24 x 30
070
—
28 x 30
Table 61.
Filter sizing (continued)
Size (60 Hz) Size (50 Hz) Filter Size (Nominal) inches