Hussmann SSG8B, Руководство по установке и эксплуатации

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3-8
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tartup
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pEratIon
P/N 3018126_E
U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com
P/N 3018126_E 3-9
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
SMG8B & SSG8B
TEV ADJUSTMENT
Expansion valves may be adjusted to fully feed
the evaporator. Before attempting to adjust
valves, make sure the evaporator is clear or only
lightly covered with frost, and the merchandiser
is within 10°F of its expected operating tem-
perature.
Adjust the valve as Follows:
a. Attach a probe to the suction line near the
expansion valve bulb.
b. Obtain a pressure reading from the factory
installed Schraeder valve. Convert the pres-
sure reading to a saturated temperature for the
refrigerant.
Temperature (b) minus Temperature (a) is the
superheat. The valve should be adjusted so that
the greatest difference between the two tem-
peratures is 3°F to 5° F.
Make adjustments of no more than 1 /
2
turn of
the valve stem at a time and wait for at least
15 minutes before rechecking the probe tem-
perature and making further adjustments.
SELF CONTAINED (LOCATION)
Product should always be maintained at proper
temperature. This means that from the time the
product is received, through storage, preparation
and display, the temperature of the product
must be controlled to maximize the life of the
product.
B
e sure to position self contained
merchandisers properly
.
SELF CONTAINED models have vented base
panels to allow air circulation through the
condensing unit. Allow for a minimum 4 in.
clearance from walls, merchandisers, and any
other large objects near the merchandiser’s
vented base panels (for self contained models).
Blocking or restricting air flow will adversely
affect performance and may damage the refrig-
eration system.