Nor-Lake Ice Cream Hardening & Holding Cabinets Models NX362WWW/4 - Manual (Page 7)

7 151555 Rev. A 07/12
LOW TEMPERATURE FREEZERS – “NX201WWW” Models
The Hardening and Holding Cabinet has a power cord in the bottom of the cabinet at the right rear
for connection to power. On initial start-up the evaporator fan motors will not start and you cannot
initiate a defrost until the evaporator coil temperature has lowered to 35°F. This is due to the
thermostat. Also, the cabinet comes with a non-adjustable “Front” control to keep the mullion heaters
off until the cabinet temperature has lowered to 10°F.
LEG AND CONDENSATE PAN INSTALLATION FOR TOP MOUNT CABINETS ONLY
1. Screw legs or casters into existing crate mounting holes.
SERVICE INSTRUCTIONS
1. High head pressure and high back pressure:
A. Condenser coil clogged or restricted
B. Condenser fan motor defective
C. Air discharge in rear of cabinet restricted
2. Low back pressure and low head pressure:
A. Restriction in system
B. Refrigerant undercharged
C. Leak in system
3. Pressure normal – cabinet warm:
A. Coil blocked with frost
B. Refrigerant undercharged
C. Control set too warm
4. Cabinet not cycling – coil blocked with frost:
A. Defective temperature controller
B. Refrigerant overcharged
C. Location too hot
D. Condenser clogged
E. Condenser fan motor defective
F. Defrost heater not operating
5. Compressor starts and runs – but cycles on overload:
A. Low voltage
B. Relay defective
C. Overload defective
D. High head pressure