Structural Concepts Harmony HMG2642R.4439 User Manual page 15

MAINTENANCE, CONT'D: REFRIGERATION PKG., TEMP. CONTROLLER, EVAP. PAN ACCESS
Refrigeration Package Access
Note: Servicing to be accomplished by licensed
electrical / refrigeration contractor.
Air Filter
• Magnetic strips attached to the filter adhere the
filter to the rear grille.
• Clean the nylon mesh filter by rinsing thoroughly
with water against the air flow direction.
• Mild detergent removes smoke & grease stains.
• See illustration at top-right.
Pull Out Refrigeration Package
•
Remove the rear grille. Grille may be slid upward
and out or removal of two screws may be required.
•
Note: At initial slide-out, it may be necessary to
remove Compressor Pan Shipment Screws (see
illustration at right for location).
•
Refrigerant lines are flexible to facilitate rear access
maintenance.
•
Plastic glides are mounted at base to assist in sliding
the condenser out for access.
• Service connections are at the left of compressor.
•
Slide condenser unit out 12 to 18 inches to access
high pressure service connection.
Temperature Controller (Self-Contained Units)
• Temperature Controller is located in the Ballast Box.
•
Temperature / Defrost control settings are
programmable from these locations.
• Case Temperature Set Point is set at the factory,
as determined by case size & sensor probe location.
•
Temperature is controlled by thermostat.
• If a temperature setting change is required, follow
instructions regarding Temperature Control
Programming Steps in the technical information
section of this operating manual.
•
If service is required to the temperature control unit,
call Structural Concepts Corporation. Maintenance
should be performed by a certified technician.
•
The toll-free number is listed in the Technical Service
section of this manual.
• See Temperature Controller section in this manual.
NOTE: Spirit-filled thermometers located in the
refrigerated compartment are for monitoring warmest air
temperature in accordance with NSF Std. 7
Evaporator Pan Access / Removal
• Turn off main power; allow evaporator pan to cool.
•
Lift Rear Grille up and off (no tools required).
• WARNING! Evaporator Pan May Be Hot! Check
temperature of pan prior to handling.
•
Withdraw evaporator pan from the right side behind
electrical box.
•
Unplug evaporator pan from the electric outlet.
•
Empty evaporator pan contents into suitable
container. Replace rear panel when completed.
Drain and Expansion Valve Access
• The drain and expansion valve are both accessible
from the front of the case.
•
Unplug the fans (one plug per side) and remove
the fastener from the access panel in the front right
(or left) corner of the unit.
•
The drain and the expansion valve (TXV) are
directly below the access panel.
•
See illustration immediately below.
Fan Plug
TXV Access
Rear Grille
15
Evaporator
Fan
Panel
Compressor Pan
Shipment Screw
(one at each side)