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
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