Nor-Lake SCIENTIFIC WARMING CABINET User Manual

SCIENTIFIC WARMING CABINET

Installation, Operation and

Maintenance Instructions

GENERAL

Inspection 2 Location 2

INSTALLATION

Door Alignment 2 Shelf Installation 2 Remote Contacts 3 2-10 Volt DC Output 3

OPERATION

Drawer Option

Programmable Control 5

MAINTENANCE

Periodic Cleaning Maintenance Service and

Analysis Guide

Wiring Diagram 12

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4

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GENERAL

INSPECTION

When the equipment is received, all items should be carefully checked against the bill of lading to
insure all crates and cartons have been received. All units should be inspected for concealed
damage by uncrating the units immediately. If any damage is found, it should be reported to the
carrier at once, and a claim should be filed with the carrier. This equipment has been inspected and
tested in the manufacturing facility and has been crated in accordance with transportation rules and
guidelines. Manufacturer is not responsible for freight loss or damage.

LOCATION

The cabinet should also be leveled when it is placed in its permanent location. Do not stack items
on top of the unit. Vibration during shipping and handling may loosen mechanical connections.
Check all connections during installation. Check all wiring and fasteners.

WARNINGS AND CAUTIONS

Warning: Burn Hazard
Do Not exceed 150°F for non-vented closures; (screw caps, crimp seals, plastic pouches, etc.) Do

Not exceed pre-sterile solution manufacturer’s temperature requirements.
Do Not raise set temperature to increase rate of heating. Allow approximately 4-6 hours for
solutions to reach desired temperatures.
Do Not use liquids on or inject in living tissue unless actual liquid temperature has been measured
and is acceptable. Temperature of warming cabinet’s contents may be hotter than the displayed air
temperature. For patient safety, always check liquid temperature prior to using.

Warning: Electric Shock Hazard.
Do Not remove top electrical cover. Contact a qualified service representative.

Warning: Explosion Hazard.
Do Not use in the presence of flammable anesthetics. Do not heat liquids in the presence of

flammable solvents.

Observe all Warning Labels. Disconnect power supply to eliminate injury from electrical
shock or moving parts when servicing equipment.

INSTALLATION

Door Alignment - If for some reason the doors are not squared up on the cabinet, the doors can be

adjusted. Opening the door(s) and loosening the screws that hold both the top and bottom hinges to
the cabinet can accomplish this. After adjusting the door so that it is aligned correctly, tighten the
screws to securely hold the hinges in place.

Shelving Installation - Locate shelves inside cabinet, install shelf supports (2 RH support, 2 LH
support per shelf.)

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Remote Alarms Contacts Access - The factory installed Remote alarm contacts access is located
on the top of the cabinet under top cover, behind the microprocessor control.

1. Remove the cover to access the terminal connections.

2. Select and knock-out a hole to run field leads into electrical box terminals.

3. The terminal block in the electrical box is labeled for “normally open” and “normally closed”
activation. End user is responsible for proper field installation.

Terminal connections are rated for class II circuits only per NEC table 11(A). (Limited power
source less than 30vac 8 Amp. max, see applicable notes in NEC).

2-10 volt DC Output – Terminal board for 2-10v DC Output for temperature re-transmit is located
behind the cabinet façade, next to Remote Alarm access box. Connect wires as per label.

RS485 port - (Optional) terminal board for RS485 port is located behind the cabinet façade, next to
the Remote Alarm access box, connect wires as per label.

OPERATION

The warming cabinet is designed for an operating range of 90°F to160°F and is intended for indoor
use only. A transverse blower optimizes airflow and ensures tight temperature uniformity.

These units employ a programmable controller to control the temperature. The controller is located
on the facade of the unit. Please see the separate instructions, part number 143378, on the
operation of the controller used in the warming cabinet.

The cabinet utilizes an electrically operated heater to warm the product. The programmable control
is factory set with a cutout temperature of 160°F to prevent the cabinet from exceeding its design
limitations.

NOTE: The cabinet is equipped with two switches located on the façade. One is the main power
ON/OFF switch for the unit. The other is a three-position switch for the battery-powered alarm. The
alarm switch is placed in the middle, or OFF position, for shipment. When the Warming cabinet is
put into operation, the top of the switch should be pushed in to the ON position. With the switch in
the ON position, the battery will sound the alarm if the main power to the cabinet is interrupted. The
switch flipped to the bottom position is used to test the battery. This test must be done with power
uninterrupted to the cabinet. The alarm will sound if the battery is good. This test should be done
periodically. The battery is located on the control box that is on top of the unit behind the facade.

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DRAWER OPTION

The Warming cabinet is offered with drawers as an option.

Drawer Removal – The warming cabinet may accommodate up to eight drawers. To remove the
drawers for cleaning, locate the black release tabs found on the inside front of the drawer. See
Figure C. Push the release tabs on each side inward and lift up the drawer. Slide the drawer
towards you and remove.

Figure C

Drawer Slide Removal / Adjustment – Each drawer slide is independently removable and can be

adjusted to different levels. First remove the drawer per above instructions. Release the locking
tabs located on the drawer slide, move the front tab up and release the tab in the back of the
cabinet, by sliding the locking tab towards the front. See illustration. Unhook the drawer slide
assembly from both the front and back shelf standards by lifting up on the assembly.

To install a drawer slide, reverse the process used to remove the slide. Secure the locking tabs into
position after the drawer slide assembly is in place. Reinstall the drawer.

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