Manitowoc Ice Q - Manual (Page 28)

Installation Instructions Section 2
2-18 Part Number 000001530
Step 7 Leak Check The Refrigeration System
Leak check the new line set connections at the ice
machine head section, condensing unit and S trap as
well as all factory joints throughout the entire system.
Disconnect power to the CVD condensing unit. Place the
ICE/OFF/CLEAN toggle switch into the ICE position.
This allows the low side and high side pressures to
equalize. Place the ICE/OFF/CLEAN toggle switch in the
OFF position. Connect power to the CVD condensing
unit and allow system to pump down.
Step 8 Insulation Requirements
To prevent condensation the entire suction line including
the shut-off valve must be insulated. All insulation must
be airtight and sealed at both ends. Insulate shut-off
valves with the supplied preformed insulation.
The following insulation requirements prevent
condensation at 90°F (32.2°C) ambient 90% Relative
Humidity. If higher humidity is expected, increase
insulation thickness.
The entire suction line set, including the suction service
valve located on the back of the ice machine requires:
3 Phase Scroll Compressor Rotation
CVD2075 Only
A trained and qualified technician must verify
compressor rotation at equipment startup or compressor
warranty will be void. Incorrect rotation of a scroll
compressor can be identified by:
• Noisy compressor operation
• Elevated suction pressure
• Low discharge pressure
• Compressor trips on overload protector
To change compressor rotation, reverse (exchange
locations) any two incoming power supply leads.
Test run ice machine in the freeze and harvest cycles,
then place toggle switch in OFF position and verify
condensing unit cycles off.
Suction Line Liquid Line Min. Insulation
Thickness
3/4 inch
(19 mm)
1/4 inch
(7 mm)
3/4”(19mm)
Suction Line
1/4” (7mm)
Liquid Line
Important
To prevent condensation the entire suction line
including the shut off valve must be insulated. All
insulation must be airtight and sealed at both ends.
The minimum requirements are for conditions at or
below 90% humidity and 90°F (32.2°C) ambient.
When higher humidity will be experienced, insulation
wall thickness will need to be increased.