Hussmann Pre-Charged Refrigeration System BM2VA15UGDR

– The drain pan contains drain pan heaters, evaporator fan motors, temperature sensor, and a terminal strip for wiring. The drain pan can be lowered for easy service of these components. The drain pan stays connected to the unit by means of support rods.

1) Remove fasteners holding fan grille.

2) Carefully remove temperature sensor and feed through grille.

Note location/orientation of sensor prior to removal.

3) Remove fasteners holding drain pan. Fasteners require 10mm socket.

Remove four outer fasteners first and middle two fasteners last.;

WARNING! RISK OF ELECTRICAL SHOCK! Carefully follow electrical installation instructions and electrical safety recommendations to avoid risk of electrical shock during installation, use or maintenance.

WARNING! RISK OF FIRE AND EXPLOSION! Do not use a vacuum cleaner to clean the product. It has a motor with brushes that generate sparks during normal operation and may form an unsafe condition if there is a flammable mixture.

WARNING! RISK OF LEAKAGE! Do not use mechanical devices or other means to accelerate the defrosting process, other than those recommended by the manufacturer. Do not damage the refrigerant circuit.

Is the equipment turned off and disconnected from the power supply?

Is the bottom side of the evaporators open?

Are the fans and connecting board removed?

Is the unit free from dust accumulation?

Are the condenser fins and electronic components protected against dust injection?

Is the unit free from punctured refrigerant tubes?

Technicians must be properly qualified to conduct maintenance in refrigeration systems with flammable refrigerants.

Strictly follow the work instructions:

Maintain a periodic cleaning program for the equipment.

Perform a detailed inspection to identify potential refrigerant leaks.

Determine a specific location to work with the cooling system that is suitable to handle flammable refrigerant equipment.

Monitor the working area using a Hydrocarbon Detector (HC) located at a low level.

When replacing or servicing electrical components, ensure that all components comply with IEC / UL 60079-15.

Component parts are replaced with like components with servicing done by trained authorized service personnel.

Expansion valves are assembled in the upper side of the machine and require special attention.