18 • Installation & Operation
INSTALLATION & OpERATION
Electric and Hot Gas
For a description of these defrost types, see
"Defrosting - Low Temp" on page 14
Anti-Sweat Heaters - Low Temp
The case has one anti-sweat heater located in each mullion, including the end mullions, and one anti-sweat heater in the case sill. The mullion
heater is located behind the front metal strike plate. Remove the front fasteners on the mullion and remove the back plastic of the mullion
to access the heater. The case sill heater is located under the front metal strike plate below the door opening. Contact Zero Zone’s Service
Department for instructions for servicing this heater.
For locations with low humidity and tightly controlled ambient conditions, the lower sill heater may be disconnected for additional energy
savings.
Anti-Sweat Heaters - Medium Temp
The case has one anti-sweat heater located in each mullion, including the end mullions, and one anti-sweat heater in the case sill. The mullion
heater is located behind the front metal strike plate. Remove the front fasteners on the mullion and remove the extrusion to access the heater.
Contact Zero Zone’s Service Department for instructions for servicing this heater.
Doors
For detailed information on the doors, call the Zero Zone Service Department.
