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OWNER’S MANUAL Installation, Operation & Maintenance Instructions NOTE: Read this manual completely before attempting installation of your POLAR-PAK refrigeration system. Damage could occur to the unit if instructions are not followed completely. Kolpak... Specified #1 Among Walk-ins www.kolpak.com...
Table of Contents RECEIVING INSPECTION ..............................1 INSTALLATION – GENERAL INFORMATION ....................1 2.0 INSTALLATION – TOP MOUNT MODELS ......................2 2.1 I – OUTDOOR UNITS ONLY............. 2 NSTALLING THE EMBRANE AND 2.2 J ................3 OINING EFRIGERATION EILING ANEL 2.3 W ............................
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Table of Figures Figure 1: Installation of the Roof Curb and Membrane for Outdoor Top Mount Polar-Pak Units ..2 Figure 2: Joining the Top-Mount Refrigeration System to the Ceiling Panel ........3 Figure 3: Break-Away of Walk-in and Polar Pak Top-Mount Refrigeration System ......4 Figure 4: Power Hook-Up for Polar Pak Top-Mount Coolers and Freezers ..........
1) Carefully check the crate for visible signs of cause; 2) SAVE THE CRATE and; 3) IMMEDIATELY file a “Claim of Damaged Goods” with the carrier. Under NO circumstance may a damaged unit be returned to KOLPAK without first obtaining written permission. Address all inquiries to: Kolpak P.O.
Installation – Top Mount Models The refrigeration system for the top-mount model has been shipped in its own individual shipping crate. It is recommended that the refrigeration system first be mated to the refrigeration-system-accommodating ceiling panel and then installed on the walk-in as an assembly (see following sections 2.1-2.2).
2.2 Joining The Refrigeration Unit To The Ceiling Panel • Place the ceiling panel to which the refrigeration system is to be connected on 12” high supports (Refer to Fig. 2). The space below the rectangular opening in the panel should be clear and free of obstructions.
2.3 Walk-In Assembly NOTE: Allow at least 18” of clearance around the refrigeration system when fully assembled. Failure to allow adequate clearance can result in poor system performance and premature compressor failure. A separate installation instruction manual for the walk-in is included with the shipping crate.
The refrigeration assembly, consisting of the ceiling panel and the refrigeration unit, should be handled together. CAUTION: The refrigeration system is heavy, bulky, and has unequal weight distribution. When handling this equipment, please use reasonable care to prevent personal injury or damage to the equipment. •...
3.1 Coolers (Cont’d) • Connect one end of the power line to the bottom of the contactor provided in the electric box in the condensing unit compartment, and the other end to a properly sized electric outlet with an appropriate overcurrent protection device. Consult the unit name plate for power requirement.
Installation – Side Mount Models 4.1 Preparation for Installation Normally the walk-in panels, refrigeration system, and installation instructions are shipped together. Transport the crate to the job site, uncrate, and remove the refrigeration system for installation. CAUTION: The side-mount Polar-Pak refrigeration systems are top heavy and the casters are designed for ease of installation ONLY.
4.3 Mounting the Refrigeration Unit NOTE: Mounting hardware is supplied in a small cloth bag shipped secured inside the condensing unit compartment. • Remove the back and the side panels from the condensing unit compartment. Loosen the mounting bolts of the cast iron body compressor (freezers only) to allow free suspension of the compressor on support strings.
Power Hook-up – Side Mount Models CAUTION: Power installation must be in full compliance with the National Electrical Code and all applicable local codes. Coolers • Locate the power connection junction box. Refer to Fig. 7. • Feed the power line through the circular opening on the bottom of the condensing unit.
Operation POLAR-PAK Refrigeration Systems utilize a draw-through design. The walk-in air is drawn into the air in-take vent(s) and the evaporator coil prior to becoming discharged into the walk- in. This circulation becomes a vehicle for transporting the unwanted thermal load into the evaporator coil for rejection to the ambient air.
7.2 Optional Defrost Timer for Coolers The defrost timer is programmed at the factory to initiate four automatic defrost cycles daily at 4:00am, 10:00am, 4:00pm, and 10:00pm, respectively. You will need to set the defrost timer clock to the correct time of day upon installation (see below). The procedure for resetting the frequency and duration of the defrost cycle is presented in Section 8.0, “Defrost Timer Operation.”...
DEFROST TIMER OPERATION The defrost timer is located in the electric box inside the condensing unit compartment. To gain access, remove the condensing unit housing cover and the electric box cover (See Fig. 15). The optional defrost timer will be mounted in the unit electrical box. The working parts are as follows: A.
Thermostat Operation The body of the thermostat is mounted inside the condenser compartment. The sensing bulb is placed in the return air stream inside the evaporator compartment. To gain access to the thermostat, remove the condensing unit compartment “power” end panel for ceiling-mount models.
11.0 Available Accessories for Polar-Pak Refrigeration Systems Standard POLAR-PAK refrigeration systems are designed for indoor use (protected from weather) when indoor temperature ranges between 55 °F to 100 °F. Some accessories that may be available with your POLAR-PAK refrigeration system by special order are as follows: Fan cycle switch •...
Cleaning Procedure - Condensing Unit 1. Turn off power. 2. Remove end panels and side/top panels on top-mount models. 3. Use a vacuum cleaner with proper attachments to clean the condenser coil and other components. 4. In extreme cases of dust and grease build up, remove the condenser fan by loosening and removing the four mounting screws.
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