Spring Grove, Illinois 60081
www.intermatic.com
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CUBE™ Adaptive Defrost Module
Installation and Operation Manual
SAFETY SECTION
WARNING
Risk of Fire or Electrical Shock
• Disconnect the power at the circuit breaker(s) or disconnect switch(es) before
installing or servicing.
• More than one circuit breaker or disconnect switch may be required to
de-energize the equipment before servicing.
• Installation and/or wiring must be in accordance with the national and local
electrical code requirements.
• Refer to DTAV40 or DDT40 for additional warnings and installation instructions.
See www.intermatic.com if needed.
• Only use the Intermatic supplied thermistor probe kit. The probe connection(s) to
the DTAV40 and DDT40 control are NOT an isolated Class 2 circuit. Use #18-14
AWG copper conductors for the field supplied wire to the thermistor probe.
NOTICE
• Rotate the timer dial clockwise only, rotating counter-clockwise will damage the
timer.
• Do not move the clock hands on the timer. Moving the clock hands manually may
damage the timer.
• The thermistor wire may be extended up to 400 ft (122 m) using field-supplied
wiring between the DDT40 control and the thermistor probe location.
• This product is only intended to be used with Grässlin™ DTAV40 and DDT40
models.
All trademarks are the property of their respective owners.
PRODUCT DESCRIPTION
The
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CUBE™ Adaptive Defrost Module, when added to an existing Grässlin™ DTAV40 - Defrost Control, provides the
DTAV40 Control with the ability to skip scheduled defrost events when they are not needed in order to save energy. Up to
four thermistor probes may be added to the control in order to monitor multiple evaporator coils. Thermistor probes may be
installed up to 400 ft (122 m) away from the
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CUBE™ module at a remote dedicated or multiplex condensing unit (indoor or
outdoor) or within the freezer/cooler box. No changes to the installed defrost control terminal wiring (such as the wiring for
fans, defrost heater, or thermostat) is required.
To order additional thermistor probe kits (for example, to connect multiple evaporators to one control), use part number
178GR10K-1.
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CUBE™ Adaptive Defrost Module Contents – Part Number DDFM
The kit includes:
• One 10 ft (3.05 m) thermistor probe, with clip
• One 6 ft (1.83 m) input lead
• Four wire connectors
• One dead front
• One
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CUBE™ Adaptive Defrost Module, DDFM
• Four #4-40 ¼" screws
FIG. 1
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CUBE™ Module Kit Contents
