Manitowoc QD0202A, Service Manual

Page: 37 / 175

Section 3 Maintenance
Part No. 80-1100-3
3-3
HARVEST SEQUENCE WATER PURGE
The harvest sequence water purge adjustment may be
used when the ice machine is hooked up to special
water systems, such as a de-ionized water treatment
system.
• The harvest sequence water purge may be set to 15,
30, or 45 seconds.
• During the harvest sequence water purge, the water
fill valve energizes and de-energizes by time. The
water purge must be at the factory setting of 45
seconds for the water fill valve to energize during the
last 15 seconds of the water purge. If it is set to less
than 45 seconds, the water fill valve will not energize
during the water purge.
Figure 3-4. Water Purge Adjustment
Cleaning the Condenser
AIR-COOLED CONDENSER
(SELF-CONTAINED AND REMOTE MODELS)
A dirty condenser restricts airflow, resulting in
excessively high operating temperatures. This reduces
ice production and shortens component life. Clean the
condenser at least every six months. Follow the steps
below.
1. The washable aluminum filter on self-contained ice
machines is designed to catch dust, dirt, lint and
grease. This helps keep the condenser clean. Clean
the filter with a mild soap and water solution.
Figure 3-5. Self-Contained Air-Cooled Filter
2. Clean the outside of the condenser (bottom of a
remote condenser) with a soft brush or a vacuum
with a brush attachment. Clean from top to bottom,
not side to side. Be careful not to bend the
condenser fins.
Continued on next page …
Important
The harvest sequence water purge is factory-set at
45 seconds. A shorter purge setting (with standard
water supplies such as city water) is not
recommended. This can increase water system
cleaning and sanitizing requirements.
15
30
45
SV1617
CONTROL
BOARD
WATER PURGE
ADJUSTMENT
! Warning
Disconnect electric power to the ice machine and
the remote condenser at the electric service switch
before cleaning the condenser.
!
Caution
The condenser fins are sharp. Use care when
cleaning them.
SV1608
AIR FILTER