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FORM 150.72-ICOM6
ISSUE DATE: 08/03/2022
8. Visually inspect the Environment Guard Premi-
um coating for any damage, degradation, or bare
spots. If touch up of the coating is necessary, fol-
low the process and materials approved by John-
son Controls in the condenser coil repair guide.
PART NUMBER (P/N)
013-04185-000
013-04185-001
013-04186-000
013-04186-001
OPERATING PARAMETERS
Perform regular checks on the system to ensure that
operating temperatures and pressures are within limi-
tations, and that the operating controls are set within
proper limits. See SECTION 8 – UNIT OPERATION,
SECTION 6 – COMMISSIONING, and SECTION 4 –
INSTALLATION.
ON-BOARD BATTERY BACKUP
The Real Time Clock chip (U5) located on the 031-
02630 IPU II board that maintains the date/time and
stores customer programmed setpoints.
Do not confuse JP1 on the IPU II (031-
02630) board with JP1 on the I/O (031-
02550) board.
JOHNSON CONTROLS
DESCRIPTION
Cleaner, Coil, 4-1 gal
Cleaner, Coil, 1 gal
Reducer, Salt, 4-1 gal
Reducer, Salt, 1 gal
THERMAL DISPERSION FLOW SWITCH
Check the sensor tip for buildup regularly, because it
can affect the sensitivity of the sensor.
In case of any buildup at the sensor tip, use a soft cloth
to remove it. Use vinegar as the cleaning agent to re-
move any stubborn buildup if necessary.
BRAZED PLATE HEAT EXCHANGER
(EVAPORATOR) HEATER
The internal power supply to the Evapo-
rator Heater is 120 VAC. Disconnecting
120 VAC power from the unit, at or below
freezing temperatures, can result in dam-
age to the evaporator and unit as a result
of the chilled liquid freezing.
OVERALL UNIT INSPECTION
In addition to the checks listed on this page, perform
periodic overall inspections on the unit to ensure prop-
er equipment operation. Investigate and correct imme-
diately items such as loose hardware, component op-
eration, refrigerant leaks, and unusual noises.
SECTION 10 – MAINTENANCE
201
10
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