42
REFRIGERATION SYSTEM
General Operation
The RAM R200 employs a cold wall system. Through the
refrigeration process, heat is transferred to the
condensing unit at the bottom of the cabinet, where it is
expelled to the surrounding outside air. It is extremely
important to allow unrestricted airflow for the
refrigeration process to function properly.
A minimum of 1.0 in. (2.5 cm) clearance on both sides,
2 in. (5 cm) behind the Dispenser, and 24 in. (61 cm) to
the ceiling is recommended.
The temperature control for the RAM R200 is capable of
detecting conditions that fall outside of normal operation.
In such cases, the controller will generate and display an
error to warn the operator that an abnormal condition
exists and corrective action may need to be taken. Some
error conditions are easily fixed, while others may require
the attention of a qualified service technician.
See pages 20 and 21 for a complete list of error codes
and a troubleshooting guide.
CAUTION!
Only trained and/or qualified
personnel, licensed in refrigeration, should perform
service to the refrigeration systems of this equipment.
Failure to comply may result in personal injury from
moving parts or damage to the machine.
The set point or turn off temperature is the temperature
the refrigeration system will attempt to maintain inside
the cabinet. The default set point temperature is 0°F
(-18°C), and has a range of -5°F to 15° F (-20°C to -9°C).
The set point can be changed using the Set Temp
function in the Configuration menu (see page 14).
Cabinet temperature is displayed on the operator panel
during normal operation.
Important! Defrosting.
Because the dispenser employs
a cold wall design, it will be necessary to manually
defrost the cabinet daily. First, remove the product. Turn
the On/Off Switch off. Open the cabinet door and allow 1
hour to defrost.
Caution: Never use a sharp object to remove frost
buildup. Never drill or otherwise puncture cabinet
walls or top.
Wipe the cabinet dry when defrost is complete.
Required Maintenance
Daily:
Shut off, clean, defrost, and inspect cabinet (see page 9).
Monthly:
Clean and inspect the condenser filter. Replace as
necessary.
Every 3 months,
or as determined by
environmental conditions:
•
Inspect the door gasket for proper sealing. Adjust
door hinges and/or replace gasket if needed.
•
Clean the condenser coils, located behind the
condenser filter (See below).
Cleaning the Condenser Filter and Coil
Monthly cleaning of the condensing unit filter will aid the
heat transfer characteristics of the refrigeration system,
increase its efficiency, and extend the life of the
compressor.
To remove the condenser filter, first remove the drip tray.
The filter is now visible under the angled filter shield. Lift
the filter up and out of the bottom filter bracket. Lower the
filter out from under the angled filter shield and remove.
The filter can be cleaned in warm, soapy water (HCS).
Rinse and shake off the excess water. Replace the filter
and drip tray.
Every 3 months clean the condenser coils. The coils are
behind the condenser filter. The condenser coils should
be cleaned with a vacuum or a soft brush.
Failure to keep the condenser filter and coil clean
and clear of obstructions could result in temperature
loss and damage to the compressor, and may void
the warranty.
Caution: Keep ventilation openings in the
appliance enclosure, particularly in the back bottom
panel, clear of obstruction.
Summary of Contents for McDonald's R200
Page 50: ...48 ELECTRICAL DIAGRAM Figure 33 ...
Page 56: ...089363 MCD ...
