2-4
R
efRIgeRatIon
/ e
lectRIcal
P/N 3093114_A
U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
Liquid Line – Off-time and Electric Defrost
• May be reduced by one size after one half
the merchandiser load run. Do not reduce
below evaporator connection size.
• Take-offs to evaporators exit the bottom of
the liquid line. Provide an expansion loop
for each evaporator take-off (minimum 3 in.
(76 mm) diameter).
Liquid Line – Koolgas Defrost
• Maximum of 6 evaporators per Branch
System.
• Increase the liquid line size inside the case by
two sizes over the branch size.
Branch Size In Merchandiser Size
1
/
2
7
/
8
5
/
8
1
1
/
8
7
/
8
1
3
/
8
1
1
/
8
1
5
/
8
1
3
/
8
2
1
/
8
• Take-offs to evaporators exit the bottom of
the liquid line. Provide an expansion loop
for each evaporator take-off (minimum 3 in.
(76 mm) diameter).
REFRIGERATION THERMOSTAT
The refrigeration thermostat body is located in
the electrical wireway. The bulb, when factory
installed, is located in the discharge flue. Wide
Island models will have two thermostats – one
on each side of the merchandiser.
DEFROST TERMINATION THERMOSTAT
The standard disc type defrost termination
thermostat is not adjustable. This thermo-
stat is clamped to the coil inlet tube.
CDA SENSOR (OPTIONAL)
Factory installed optional CDA sensor is
located where the thermostat bulb would
normally be located. Its leads will be routed
through the electrical wireway and to the rack
control panel. Leads are tagged in the wire-
way.
