Maintenance; Preventive Maintenance - Trane GEHE 072-180 Installation, Operation And Maintenance Manual

Maintenance

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.

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. Filter sizing
Size (60 Hz) Size (50 Hz) Filter Size (Nominal) inches
006 —
009 006
012 009
015 012
018 015
024 018
030 024
035 030
042 036
048 042
060 048-060
072 —
090 072
120 090
150 120
180 150
006 —
009 006
012 009
015 012
018 015
024 018
WSHP-SVX01Q-EN
Table 61, p. 111:
GEH
15 x 20
15 x 20
15 x 20
15 x 20
18x24
18x24
18x24
19 x 26
19 x 26
21 x 30
21 x 30
20 x 25 (3)
20 x 25 (3)
20 x 25 (3)
20 x 25 (3)
20 x 25 (3)
GEV
16 x 20
16 x 20
16 x 20
16 x 20
20 x 20
20 x 20
Table 61. Filter sizing (continued)
Size (60 Hz) Size (50 Hz) Filter Size (Nominal) inches
030 024
036 030
042 036
048 042
060 048-060
072 —
090 072
120 090
150 120
180 150
240 180
300 240
006 —
009 —
012 —
015 —
018 —
024 —
030 —
036 —
042 —
048 —
060 —
070 —
006 —
009 —
012 —
015 —
018 —
024 —
030 —
036 —
042 —
048 —
060 —
070 —
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
20 x 20
20 x 25
20 x 25
24 x 30
24 x 30
20 x 20 (4)
20 x 20 (4)
20 x 20 (4)
20 x 25 (6)
20 x 25 (6)
20 x 25 (6)
20 x 25 (6)
EXH
15 x 20
15 x 20
15 x 20
15 x 20
18 x 24
18 x 24
19 x 26
19 x 26
21 x 30
21 x 30
21 x 30
21 x 30
EXV
16 x 20
16 x 20
16 x 20
16 x 20
20 x 20
20 x 20
20 x 25
20 x 25
24 x 30
24 x 30
24 x 30
28 x 30
111