GECA-SVX01B-EN 35
Preventive Maintenance
Maintenance on the unit is simplified
with the following preventive sugges-
tions:
Filter maintenance must be per-
formed to assure proper opera-
tion of the equipment. Filters
should be inspected at least ev-
ery three months, and replaced
when it is evident they are dirty.
Filter sizing includes:
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 en-
tering the unit heat exchanger
and to ensure a clean system.
Unit Size
50/60 HZ
Filter Size
nominal inch
006-018
10 x 32 3/8
(std height unit)
006-018
7 3/4 x 30 5/8
(low height unit)
For units on well water, it is im-
portant to check the cleanliness
of the water-to-refrigerant heat
exchanger. Should it become
contaminated with dirt and scal-
ing as a result of bad water, the
heat exchanger will have to be
back flushed and cleaned with a
chemical that will remove the
scale. This service should be
performed by an experienced
service person.
It should be noted that the water
quality should be checked peri-
odically. (See Table 5).
Table 5: Water Quality Table
Scaling
Calcium and
magnesium (total
hardness)
Less than 350 ppm
Corrosion
pH 7-9.5
Hydrogen Sulfide Less than 1 ppm
Sulfates Less than 25 ppm
Chlorides Less than 125 ppm
Carbon Dioxide Less than 75 ppm
Total dissolved solids
(TDS)
Less than 1000
ppm
Biological
Growth
Iron Bacteria Low
Erosion
Suspended Solids
Low
Maintenance
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