To start a manual defrost on the Unifrost CR1360FT counter refrigerator, press and hold the DEFROST button on the controller for 5 seconds until the cycle initiates and the Defrost LED illuminates.
Applies to
This operational defrost guide applies specifically to the Unifrost CR1360FT commercial counter refrigerator.
Before you start
- Ensure that the refrigerator is powered up and running prior to attempting any controller keypad operations.
- Verify that no staff members use sharp objects or mechanical devices near the refrigeration components.
- Confirm that the DEFROST button is accessible on the electronic controller interface.
- Note that if cleaning the cabinet is required alongside defrosting, the unit must always be switched off and disconnected from the power supply first.
Safety warnings
- The appliance uses R290 flammable refrigerant, which presents a danger of fire or explosion if the system is compromised.
- Do not use mechanical devices or tools to defrost the refrigerator under any circumstances.
- Do not puncture the refrigerant piping, as flammable refrigerant poses severe safety risks.
- Always switch off and disconnect the power supply to the unit before carrying out any cleaning.
Initiating the Manual Defrost Function
Trained operators can manually initiate a defrost cycle at any time directly from the front controller.
Holding the designated DEFROST button instructs the system controller to start the defrost sequence immediately.
This manual override allows commercial kitchen staff to manage evaporator icing without waiting for a scheduled automatic cycle.
- Locate the DEFROST button on the front electronic control panel of the refrigerator.
- Press and hold the DEFROST button continuously for 5 seconds.
- Observe that the defrost cycle starts immediately upon holding the button for the required 5 seconds.
Defrost Indicator and Cycle Duration
When the manual defrost cycle begins, the Defrost LED on the controller illuminates to signify active defrosting.
The active defrost cycle is programmed to run for a maximum duration of 30 minutes.
During this operational period, the illuminated Defrost LED confirms that the defrost cycle is functioning.
- Check the electronic display panel to confirm that the Defrost LED illuminates once the cycle is triggered.
- Allow the refrigerator to complete its defrost cycle, which will last for a maximum of 30 minutes.
Automatic Defrost Intervals and Timer Resets
Under normal operating conditions, the refrigerator automatically runs a defrost cycle every six hours.
The recurring six-hour automatic defrost timing sequence begins from the moment the appliance is initially powered up.
Initiating a manual defrost cycle directly resets the internal automatic defrost timer.
Following a manual defrost, the subsequent automatic defrost cycle will start six hours after the manual defrost has finished.
- Keep the appliance powered continuously so the standard six-hour automatic defrost interval can run as designed.
- Be aware that triggering a manual defrost sequence resets the automatic schedule.
- Expect the next automatic cycle to commence precisely six hours after the current manual defrost terminates.
R290 Refrigerant and Defrost Safety Precautions
The refrigeration circuit in this unit contains R290 flammable refrigerant, necessitating strict handling protocols.
Mechanical tools or sharp implements must never be used inside the cabinet to accelerate frost removal due to the risk of explosion or fire.
Puncturing the refrigerant piping is strictly hazardous and could cause flammable refrigerant gas ignition.
All technical repairs and sealed-system interventions must be carried out exclusively by trained service personnel.
- Rely exclusively on the electronic defrost function rather than using scrapers or mechanical tools.
- Ensure all personnel avoid striking or puncturing any exposed refrigerant lines or internal panels.
Safe Power Disconnection Before Cleaning
Operators must always switch off and disconnect the electrical power supply before performing any cleaning routines.
Isolating the appliance from the mains power supply eliminates electrical hazards during interior and exterior wipe-downs.
Any repairs required on the unit must be left to trained service technicians rather than kitchen cleaning staff.
- Switch off the appliance and unplug the power cable from the mains socket before starting cleaning.
- Complete all surface sanitisation safely while the unit remains fully disconnected from the power supply.
Stop and get help if
- Stop using the appliance immediately if the refrigerant piping is punctured or leaking flammable R290 gas, creating a fire or explosion risk.
- Halt all cleaning procedures immediately if the power supply to the unit has not been switched off and disconnected.
When to call an engineer
- Contact trained service personnel whenever the appliance requires repairs, as all servicing must be completed only by qualified technicians.
- Call a trained service technician immediately if the refrigerant piping suffers any puncture, leak, or physical damage.