18
P/N 3091736_C
U.S. & Canada 1-800-922-1919 • Mexico 1 800-890-2900 • www.hussmann.com
START UP
The self contained merchandiser has its own
evaporator coil and a capillary tube.
a. Check the interior cabinet thoroughly for
loose nuts, bolts and electrical connections.
b. Inspect the refrigeration lines for visible
damage or chafing.
c. Replace electrical box cover and access
panel.
d. Turn on the electrical power, power switch
and start the merchandiser. The merchan
diser must pull down in temperature.
Allow merchandiser 24 hours to
operate before loading product.
CONTROLS AND ADJUSTMENTS
1. The T-stat controller controls refrigeration
temperature. This is factory installed in the
control panel. Adjust setpoint on the display
to maintain the discharge air temperature
shown. Measure discharge air temperatures at
the center of the discharge honeycomb.
Defrosts are time initiated and temperature
terminated for self contained. The defrost setting
is factory set as shown below.
Product
Discharge Air
Defrost
Type of
Temperature
Failsafe
Application
Temperature
Frequency
Defrost
Termination
Time
(per day)
(minutes)
Q2SSNM4SPA
Medium Temp.
20°F ‐ 28°F
6
Off time
48°F
40
(Self Contained)
(Meat, Deli, Floral)
Model
Refrigeration Controls
Defrost Controls
Controls and Adjustments
#
Confidential