Section 3
Start-Up
3-3
Condensate Water Removal
(Refrigerators and Freezers)
Manitowoc cabinets are equipped with a condensate
vaporizer system. This system uses energy-saving hot
gas supplied by the refrigeration system lines. No
drain connection is required.
Defrost Systems
GENERAL
Refrigerator coils operate at tmperatures below
freezing (32
°
F). During compressor “off” time, the
evaporator fan continues to circulate 38
°
F refrigerator
compartment air through the evaporator coil. This air
circulation raises the coil temperature above the
freezing point, melting any frost that may have
accumulated.
The run-off water is drained into the vaporizer pan
and is evaporated by the hot gas refrigeration line
during compressor “on” time.
Freezer coils are defrosted electrically at user-
determined times.
NOTE: A freezer’s evaporator fans do not run
immediately upon start-up or during and immediately
following the defrost cycles. The fans start when the
coil temperature falls below freezing. This prevents
the fans from blowing moisture or heated air on the
stored products.
DEFROST SETTINGS
The defrost timer is factory preset to defrost the
evaporator coil each day at 2:00 AM, 8:00 AM,
2:00 PM, and 8:00 PM.
If you wish to change the defrost times, remove the
pins from the outer dial and re-insert them into the
desired time slots. (Refer to drawing.)
CAUTION
Leave at least one hole between adjacent pins.
Defrost Time Clock
Important
Set the defrost timer to defrost the reach-in during
the lowest usage periods.
SETTING TIME OF DAY
The defrost timer must be set to “real time” after the
power is turned on, or after a power failure.
To set the time:
1.
Grasp the knob in the center of the inner dial.
2.
Turn it counterclockwise to rotate the outer dial.
3.
Line up the current time of day on the outer dial
with the pointer.
ADJUSTING DEFROST DURATION
The defrost cycle is terminated by a temperature-
sensing switch located on the suction line, adjacent to
the evaporator coil.
The defrost duration is factory-set. Normally, no
adjustment is required. For a longer defrost time,
press down on the inner dial pointer and rotate the
pointer until the desired time lines up.
Important
The coil defrosts only until the temperature-sensing
switch terminates the cycle, regardless of the
defrost duration that is set.
SV1080
2 HOUR
DIAL
24 HOUR
DIAL
