Delfield ST4427NP-6, Specifications, Installation, Operation & Maintenance Manual

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Part Number: 9295093A 02/21 21
DANGER
It is the responsibility of the equipment owner to perform
a Personal Protective Equipment Hazard Assessment
to ensure adequate protection during maintenance
procedures.
DANGER
Failure to disconnect the power at the main power supply
disconnect could result in serious injury or death. The
power switch DOES NOT disconnect all incoming power.
DANGER
Disconnect electric power at the main power disconnect
for all equipment being serviced. Observe correct polarity
of incoming line voltage. Incorrect polarity can lead to
erratic operation.
n
Warning
Never use sharp objects or tools to remove ice or frost. Do
not use mechanical devices or other means to accelerate
the defrosting process.
n
Warning
When using cleaning fluids or chemicals, rubber gloves
and eye protection (and/or face shield) must be worn.
n
Warning
When cleaning interior and exterior of unit, care should
be taken to avoid the front power switch and the rear
power cord. Keep water and/or cleaning solutions away
from these parts.
n
Warning
Never use a high-pressure water jet for cleaning or hose
down or flood interior or exterior of units with water. Do
not use power cleaning equipment, steel wool, scrapers
or wire brushes on stainless steel or painted surfaces.
,
Caution
Maintenance and servicing work other than cleaning as
described in this manual must be done by an authorized
service personnel.
,
Caution
Over shelves and other items mounted to the top of the
counters should never be installed in the field due to the
potential damage to the refrigeration system.
Responsibility
You are responsible for maintaining the equipment
in accordance with the instructions in this manual.
Maintenance procedures are not covered by the warranty.
Maintenance Daily Weekly Quarterly After Prolonged Shutdown At Start-Up
Interior X X X
Gasket X X X
Exterior X X X
Drawer Track X X X
Drain X X X
Condenser Coil X X X
Hinge screws X X X
Casters X X X
Interior Cleaning
The interior can be cleaned using soap and warm water. If
this isn’t sufficient, try ammonia and water or a nonabrasive
liquid cleaner.
GASKETS
Gaskets require regular cleaning to prevent mold and mildew
build up and also to retain the elasticity of the gasket. Clean
them with water and mild soap (not citrus based). Avoid full
strength cleaning products on gaskets as this can cause them
to become brittle and crack. Never use sharp tools or knives
to scrape or clean the gasket. Gaskets can be easily replaced
Section 4
Maintenance