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General| Brand | QBD Cooling Systems Inc. |
|---|---|
| Model | AC48 |
| Category | Commercial Food Equipment |
| Language | English |
Cooler should not be installed in direct sunlight to prevent overheating and performance issues.
Avoid installing the cooler near HVAC vents which can disrupt airflow and temperature control.
Do not place the cooler near fans as it can affect the internal temperature and cooling efficiency.
Avoid placing the cooler near doorways to maintain consistent temperature and reduce air infiltration.
Ensure the cooler is leveled front to back and side to side for optimal operation and door sealing.
Maintain proper exterior clearance: 12" from top, 4" from all sides for adequate air circulation.
Specifies the intended use of the cooler for storage and merchandising of food, excluding specific items and conditions.
Defines maximum acceptable ambient operating conditions: 75°F (23°C) and 55% relative humidity.
Highlights electrical and mechanical hazards, requiring authorized personnel for access.
Warns about rotating fan blades, emphasizing that only certified technicians should access this area.
Warns of burn hazard due to hot surfaces and advises against touching.
Caution against spraying or immersing the unit in water, as it voids the warranty.
Indicates the required power source for the unit, specifying voltage and frequency.
Identifies the location of the contactor and relay connection box within the unit.
Specifies the type of refrigerant used in the cooling system, R-404A.
Explains that the thermostat controls specific motors and the factory setting for product temperature.
Ensure proper grounding and circuit breaker installation by a qualified electrician for safe electrical operation.
Use a dedicated 3-prong receptacle, avoid damaged cords, and use OEM parts for replacement.
Do not use extension cords, power bars, or adapters to power the cooler.
Connect the cooler main power cord to a 220V/60Hz dedicated circuit.
Always unplug power cords before cleaning or performing any service.
Details on cold controller settings, potential performance issues, and OEM parts usage.
Maintain specific exterior clearances (12" top, 4" sides) for proper air circulation.
Highlights features like precise temperature control, adaptive defrost, fan control, and voltage protection.
Diagram showing connections for the Danfoss ERC112C electronic cold control.
Caution against spraying water on the controller, as it can lead to failure due to moisture.
Instructions for adjusting the setpoint temperature using the controller buttons.
Steps to activate and terminate the manual defrost cycle using the controller.
Information on identifying and troubleshooting probe errors (S1, S2) for the controller.
Guide for troubleshooting controller display errors like 'No Display', 'S1', and 'S2'.
Details on technician-adjustable parameters and the procedure for setting changes.
Instructions for cleaning the condenser coil to ensure proper refrigeration performance and prevent compressor failure.
Guidelines for weekly cleaning, including avoiding electrical components and cleaning glass surfaces.
Diagram illustrating the wiring for the Danfoss controller, contactor, and pressure switch.
Diagram detailing the wiring connections for the condensing unit components.
Troubleshooting steps for compressor malfunctions including no start or no hum.
Diagnosing and resolving issues where the compressor starts but trips on overload.
Addressing problems where the compressor starts but does not switch off from the start winding.
Troubleshooting when the compressor starts and runs but short cycles on the overload protector.
Resolving issues with warm temperatures, including control settings and air circulation.
Identifying potential causes for a blowing fuse, such as power cord issues or component failure.
Troubleshooting causes for a frosted suction line, like fan or system issues.
Addressing causes of leaking water, such as blocked drains or condensate pan failures.
Resolving evaporator freeze-up issues, including airflow restrictions and refrigerant problems.
Troubleshooting mis-communication with the controller due to internal failure or voltage spikes.
