Operation Manual
A Family Company Manufacturing
In The USA Since 1969
Mug Frosters and Plate Chillers*
MF24, MF36, MF48
*This manual is specic to Mug Frosters
manufactured on July 8, 2019 and after
Glastender, Inc. · 5400 North Michigan Road · Saginaw, MI · 48604-9780
800.748.0423 · 989.752.4275 · Fax 989.752.4444 · www.glastender.com
Rev. 07-08-19 OM009
MF48-S2
© 2019 Glastender, Inc.
index
toPiC Page
Operation ........................................................................................ 1
Digital Control Operation .............................................................. 2
Installation ...................................................................................... 3
Cleaning Instructions ..................................................................... 4
Wiring Diagram .............................................................................5
Terms and Conditions .................................................................... 6
Warranty Statement ........................................................................7
oPeration
oPeration
The Mug Froster/Plate Chiller is designed to chill mugs, glasses, plates, etc. that will appear “frosted” when removed.
The Mug Froster/Plate Chiller should be filled with dry, room-temperature mugs, glasses, plates, etc. to allow maximum
chilling. During business hours, the Mug Froster/Plate Chiller can be loaded with additional dry, room-temperature mugs,
glasses, plates, etc. Allow 30 minutes for chilling.
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OM009
Glastender, Inc. • 5400 North Michigan Road • Saginaw, MI • 48604-9780
800.748.0423 • 989.752.4275 • Fax 989.752.4444 • www.glastender.com
Standard Cooler Setting
digital Controller oPeration
Turning the digital controller ON/OFF
Frosters can be turned ON/OFF by pressing and holding
the Quick Access menu key for 5 seconds. When the
digital controller is off, the message OFF is displayed
alternating with the temperature.
Setting the desired temperature-
The operating temperature is preset at the factory
according to the table below and can be adjusted up or
down within the limits shown. Press the Quick Access
Menu Key 6 times until SP appears on the display. Press
the Set key. Use the increase or decrease keys to modify
the value. Press the Set key to conrm.
Factory Settings Range of Adjustment
Set Point Operating Range† Minimum Set Point Maximum Set Point
12º F 12º F to 20º F 12º F 35º F
Automatic Defrost
Each time the door is opened, moisture from the outside air enters the cabinet. Consequently, frost builds up on the evaporator coil
over time. To eliminate this buildup and keep the unit running efciently, Glastender frosters are programmed to automatically
defrost 3 times each day.
Manually-activated, 6-hour defrost
Over time, which varies depending on the level of humidity in the air and the number of door openings, a manually-activated, 6-hour
defrost cycle will be required to completely free the evaporator drain pan of frost buildup. Activate this defrost cycle by pressing the
round button next to the digital controller. The controller display will alternate between ECO and ON. An in-progress, 6-hour defrost
cycle can be canceled at any time by pressing the round button.
Activate the 6-hour defrost cycle at the close of business, at least once per week. The froster will automatically resume normal
operation six hours later.
Digital Controller Trouble Shooting Error Codes
If the digital controller display shows an Err 1 or Err 3 error code, this is likely the result of disconnected digital controller wires.
These wires are commonly disconnected for service and maintenance. Please verify controller wires are connected before calling for
service, because service calls to reconnect the controller are not covered by the factory warranty.
Code Possible Causes reCoMMended aCtion
Temperature sensing probe wires disconnected
from digital controller
Defective temperature sensing probe Call for service
Dirty condenser coil Clean condenser coil
Refrigeration system needs service Call for service
Refrigeration system needs service Call for service
Dirty condenser coil Clean condenser coil
Refrigeration system needs service Call for service
Dirty condenser coil
Refrigeration system needs service Call for service
Reconnect wires, see wiring diagram provided
in operation manual
Clean condenser coil
Glastender, Inc. • 5400 North Michigan Road • Saginaw, MI • 48604-9780
800.748.0423 • 989.752.4275 • Fax 989.752.4444 • www.glastender.com
OM009
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