4-2
s
tart
up
/ o
peratIon
P/N 3053878_B
U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
Prior to Start-up Check List
• Is the case connected to its proper nameplate power
supply?
• Is there power on at the breaker panel?
• Is the cooling water system on and circulating water
through the condenser(s)?
• Are there any leaks from condenser water
connections? Clamps may need to be tightened.
• Are the doors properly leveled and self closing?
Check each door at the fully open position and at
1-inch open position.
• Do evaporator fans rotate freely? Are they plugged
in? (Fans are behind interior back panel; manually
rotate each fan to confirm free rotation and visually
inspect that they are plugged into the receptacles.)
Starting up the case
• Ensure the water flow is on, and turn the disconnect
switch to the ON position.
The case(s) will start automatically within 4 minutes.
The controller will be activated and the case will begin
to cool down.
NOTE: Compressor startups are staggered to prevent
high electrical circuit demand.
Once the cases are running, listen for any unusual
sounds or events. Examples include: evaporator
fan blade interference. Compressors should run
continuously at startup. Use an amperage meter to
check the current to each compressor.
CHECK each fan to ensure it is running. The
discharge air output at the top inside front of the case
(honeycomb area) should be relatively even across
the length of the case. VERIFY there are no leaks at
connections for the condenser water.
STARTUP AND OPERATION
See the merchandiser’s Technical Data Sheet for
refrigerant settings and defrost require ments. Bring
merchandisers down to the operating temperatures
listed on the data sheet.
Excessive ambient conditions may cause
condensation and therefore sweating of doors.
Facility operators should monitor doors and
floor conditions to ensure safety of persons.
STOCKING
Product should NOT be placed in merchandisers until
all refrigeration controls have been adjusted and
merchandisers are at proper operating temperature.
Proper rotation of product during stocking is
necessary to prevent product loss. Always bring the
oldest product to the front and set the newest to the
back.
a
ir
discharge
and
reTurn
flues
musT
remain
open
and
free
of
obsTrucTion
aT
all
Times
to provide proper
refrigeration and air curtain performance. Do not
allow product, packages, signs, etc. to block these
grilles. Do not prop doors open while stocking. And
keep the doors closed as much as possible to prevent
coil frosting and high merchandiser temperature.
Possible hazardous condition. Follow
safety procedures outlined by store
safety management.
