Kolpak PC033S2 Installation Manual
Drop-In Refrigeration System
Installation & Operation
Manual
Manitowoc Foodservice Walk-In Division
2915 Tennessee Avenue North
Parsons, TN 38363
Phone: 800-225-9916
www.manitowocfsusa.com
550002878-3
May 2013
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Table of Contents
Safety Information...…………………..………………………………………. 3
Receiving Inspection ……………………………………………………. ….. 3
Walk-In Installation………………………….………………………………… 4
Clearance Requirements………………….…………………………………. 4
Roof Curb and Membrane……………………………………………………. 5
Top Mount Installation...………………………………………………………. 6 - 7
Drain Line………………………………………………………………………. 7
Side Mount Installation.………………………………………………………. 8 - 9
Start Up and Operation………………………………………………………… 10
Thermostat……………….……………………………………………………… 11
Electric Defrost Timer ……………………………………………………….. 12
Air Defrost Timer …………………………………………………………….. 13
Maintenance ………………………………………………………………….. 14
Warranty Information ………………………………………………………… 14
Wiring Diagrams……………………………………………………………… 15 - 22
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General Safety Information
Read this manual carefully before beginning the installation and operation of the
refrigeration system. Special attention is required to all sections identified with the
following warning and caution notices:
WARNING
Text in a Warning box alerts you to a potential personal injury situation. Read each
Warning statement before proceeding and work carefully.
CAUTION
Text in a Caution box alerts you to a situation in which you could damage the
refrigeration system. Read each Caution statement before proceeding and work
carefully.
Disregarding these special notices may result in personal injury and/or damage to the
refrigeration system.
Safety Notices:
¾ Installation and maintenance/servicing are to be performed only by trained and
qualified personnel familiar with commercial refrigeration systems.
¾ Ensure that all field wiring conforms to the equipment requirements and all
applicable local and national codes.
¾ Disconnect all power sources before servicing the refrigeration equipment.
¾ Sheet metal and coil surfaces have sharp edges. Use appropriate protective
gloves to prevent injury.
¾ Use appropriate eye protection during installation and servicing.
Receiving Inspection
Check the shipment carefully and compare to the bill of lading. Account for all items
listed and inspect each container for damage. Carefully inspect for any concealed
damage. Report any shortages or damages to the carrier, note on the bill of lading, and
file a freight claim.
Damaged material cannot be returned to the manufacturer without prior approval. A
Return Material Authorization (RMA) must be obtained. Contact a sales representative
at 800-826-7036.
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Walk-In Installation
Installation and operation instructions for the walk-in are provided separately. A copy of
this manual can be obtained from the website at www.manitowocfsusa.com or by calling
technical service at 800-225-9916.
Clearance Requirements
¾ A minimum of 18” clearance is required on all sides of the unit to allow proper air
flow and serviceability of the system.
¾ A supply of clean ambient air or ventilated air is required to maintain acceptable
condensing temperatures (less than 110° ambient) and allow removal of heated
discharge air from the condensing unit area.
Example of Minimum Clearance Requirements
B
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d
i
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g
W
a
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l
18” min
Drop-In Refrigeration Unit
18” min
Building Wall
CAUTION
Failure to observe clearance and air flow requirements will result in poor system
performance, premature equipment failure, and inability to service the system!
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Roof Curb and Membrane – Outdoor Models Only:
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Top Mount Models - Installation
Installing Unit to Ceiling Panel:
Lift the unit from its shipping crate using the lift rings located on top of the unit. Center
the evaporator air intake/discharge over the panel opening and lower into position. To
ensure there is no air infiltration into the walk-in, the gasket around the evaporator box
must seal around the panel opening. Loosen the screws with slotted holes that connect
the condensing unit to the evaporator box. Push down on the evaporator box to ensure
the gasket is sealed, check to ensure the condensing unit base is level and supported,
then retighten the screws. Once the unit is level and sealed, secure the unit to the
ceiling panel and remove the diagonal shipping braces from the condensing and
louvered ends of the unit.
WARNING
Do not lift the unit by the refrigerant tubing or other components. These features will not
support the unit weight. Injury and unit damage may occur!
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Wiring and Electrical Connections:
All electrical connections and routing must comply with local and national codes. Do not
modify the factory installed wiring without written factory approval. Refer to the serial
plate on the unit to determine the proper electrical power supply. Wire type should be of
copper conductor only and properly sized to handle the electrical load. Unit wiring
diagrams are attached inside the electrical box cover and in the back of this manual.
The electrical box is located behind the condensing unit housing louver.
WARNING
All wiring must comply with local and national codes. Wiring must be performed only by
a refrigeration technician or certified electrician. Failure to follow these guidelines may
result in injury!
CAUTION
Check all wiring connections, including factory terminals, before operation. Connections
can become loose during shipment and installation.
Drain Line – Outdoor Models Only:
Connect a copper drain line to the evaporator drain using a compression fitting. Do not
reduce the drain line size. Slope the drain line a minimum of ½” per foot to allow proper
drainage. The drain line must be wrapped with heat tape and insulated with a minimum
½” thick Armaflex. Install a P-trap in the drain line to prevent the suction of ambient
temperatures into the evaporator compartment which can lead to excessive humidity
and icing issues.
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