Before Beginning A Service Or Repair - Hussmann MicroSC ISMGG2DA-A Installation & Operation Manual

2-2 ELECTRICAL / REFRIGERATION
Before Beginning Any Service or Repair:
Use a hand-held propane leak detector ("sniffer")
to ensure no propane is present in the immediate
area, the inside of the display case and the inside
of the refrigeration system. R-290 is an odorless
refrigerant. Keep the area clear of all customers
and non-essential or unauthorized personnel.
Verify that all repair parts are identical models
to the ones they are replacing. Do not substitute
parts such as motors, switches, relays, heaters,
compressors, power supplies or solenoids.
Failure to do so can result in an explosion,
death, injury and property damage. Parts
used on hydrocarbon cases must meet specific
UL certification for non-incendive or non-
sparking components. Use only Hussmann
approved parts approved through the Hussmann
Performance Parts Website.
hussmann.com/
Brazing must not begin before all propane has
been cleared from the immediate area — the
inside of the displays case and the inside of the
refrigeration system.
If a leak is detected, follow store safety
procedures. It is the store's responsibility to have
a written safety procedure in place. The safety
procedure must comply with all applicable codes
such as local fire department's codes.
At minimum, the following actions are required:
• Immediately evacuate all persons from the
store, and contact the local fire department to
advise them that a propane leak has occurred.
• Call Hussmann and/or a qualified service
agent and inform them that a propane sensor has
detected the presence of propane.
• Do not let any persons back into the store
until the qualified service technician has arrived
and that technician advises that it is safe to
return to the store.
P/N 3110586_A
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U.S. & Canada 1-800-922-1919 • Mexico 01 800-890-2900 • www.hussmann.com
Only Hussmann or factory
trained technicians should
service or repair this R-290
(propane) equipment.
Failure to follow
instructions can result in
an explosion, death, injury
and property damage.
• The propane gas used in the unit has no odor.
The lack of smell does not indicate a lack of
escaped gas.
• A hand-held propane leak detector
("sniffer") should be used before any repair and/
or maintenance is attempted. All repair parts
must be identical models to the ones they are
replacing.
• No open flames, cigarettes or other possible
sources of ignition should be used inside the
building where the units are located until the
qualified service technician and/or local fire
department determines that all propane has been
cleared from the area and from the refrigeration
systems.