FORM 145.16-IOM2 (0611)
20 JOHNSON CONTROLS
MAINTENANCE
The air circulating fan motor has bearings
that are factory lubricated and sealed for
long life. No further lubrication is required.
The compressor is part of a sealed
refrigeration system that does not require
any additional lubrication.
Filter changes are required at regular
intervals. It is suggested that the filter be
checked at 60-day intervals for the first year
of operation, until field experience is
acquired. If light cannot be seen through the
filter, it should be changed. Always replace
the filter with the same size of 1-inch thick
disposable type of fiberglass filter. (See
General Data for listing of required filter
sizes.)
The condensate drain pan should be
checked annually, and cleaned and flushed
as required.
Recording of reference operating
parameters is recommended (volts, amp
draw, water temperature differences, etc.). A
comparison of logged data with start-up and
annual data is useful as an indicator of
general equipment condition.
Periodic lockouts are almost always caused
by air or water problems. The lockout of the
compressor is a normal protective result of
insufficient heat transfer. Check for dirt in
the water system, insufficient water flow
rates, excessive water temperatures, air
flow rates (dirty filters), and air
temperatures.
.
R-410A REFRIGERANT CHARGE
SIZE
TONS
RS*
070 6.0 5 lbs. – 12 oz
060 5.0 5 lbs. – 7 oz
048 4.0 4 lbs. – 3 oz.
042 3.5 4 lbs. – 3 oz
036 3.0 3 lbs. – 7 oz.
030 2.5 3 lbs. – 2 oz
024 2.0 2 lbs. – 13 oz
018 1.5 2 lbs. – 9 oz.
012 1.0 1 lbs. – 11.5 oz
009 0.75 1 lbs. – 7 oz
007 0.50 1 lbs. – 6 oz
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