Manitowoc QY1894N User Manual

Refrigeration System Section 7
7-10 Part No. 80-1100-3
INSTALLATION/VISUAL INSPECTION CHECKLIST WATER SYSTEM CHECKLIST
A water-related problem often causes the same
symptoms as a refrigeration system component
malfunction.
Example: A water dump valve leaking during the freeze
cycle, a system low on charge, and a starving TXV have
similar symptoms.
Water system problems must be identified and
eliminated prior to replacing refrigeration components.
Possible Problem Corrective Action
Ice machine is not level Level the ice machine
Improper clearance around
top, sides and/or back of ice
machine
Reinstall according to the
Installation Manual
Air-cooled condenser filter is
dirty
Clean the condenser filter
and/or condenser
Ice machine is not on an
independent electrical circuit
Reinstall according to the
Installation Manual
Water filtration is plugged (if
used)
Install a new water filter
Water drains are not run
separately and/or are not
vented
Run and vent drains
according to the Installation
Manual
Remote condenser line set is
improperly installed
Reinstall according to the
Installation Manual
Possible Problem Corrective Action
Water area (evaporator) is
dirty
Clean as needed
Water inlet pressure not
between 20 and 80 psi
Install a water regulator valve
or increase the water
pressure
Incoming water temperature
is not between 35°F (1.7°C)
and 90°F (32.2°C).
If too hot, check the hot water
line check valves in other
store equipment
Water filtration is plugged (if
used)
Install a new water filter
Water dump valve leaking
during the freeze cycle
Clean/replace dump valve as
needed
Vent tube is not installed on
water outlet drain
See Installation Instructions
Hoses, fittings, etc., are
leaking water
Repair/replace as needed
Water fill valve is stuck open Clean/replace as needed
Water is spraying out of the
sump trough area
Stop the water spray
Uneven water flow across the
evaporator
Clean the ice machine
Water is freezing behind the
evaporator
Correct the water flow
Plastic extrusions and
gaskets are not secured to
the evaporator
Remount/replace as needed
Water does not flow over the
evaporator (not trickle)
immediately after the prechill
Clean/replace water level
probe as needed

Manitowoc QY1894N Specifications

General

Brand	Manitowoc
Model	QY1894N
Category	Ice Maker
Language	English