Manitowoc J-1300, Service Manual

Page: 115 / 165

Section 7 Refrigeration System
7-10
INSTALLATION/VISUAL INSPECTION
CHECKLIST
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
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
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
Float valve is stuck open
or out of adjustment Adjust/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 Adjust/replace float
valve as needed