hussman P/N 406928 2-2 REFRIGERATION / ELECTRICAL, P/N 406928, Offtime Defrost

INSULATION
The suction and liquid lines should be clamped or
taped together and insulated for a minimum of
30 ft (9144 mm) from the merchandiser.
Additional insulation for the balance of the liquid
and suction lines is recommended wherever
condensation drippage is objectionable or lines
are exposed to ambient conditions.
SUCTION LINE
• Pitch in direction of flow.
• May be reduced by one size at one third of
case run load and again after the second third.
Do not reduce below the case suction line
size.
• Case suction lines should enter at the top of
the branch line.
LIQUID LINE
• May be reduced by one size after one half the
case run load. Do not reduce below the case
liquid line connection size.
• Take-offs to case liquid lines should exit the
bottom of the branch liquid line. Provide an
expansion loop for each evaporator take-off.
(Minimum 3 in. [76 mm] loop.)
2-2 REFRIGERATION / ELECTRICAL
P/N 406928
Suction Line Return
Minimum Loop
3-in. ( 76 mm)
Liquid Line Take Off
Offtime Defrost
Liquid Line
Suction Line
8 Ft Case
(2438 mm) 12 Ft Case (3658 mm) 8 Ft Case (2438 mm) 12 Ft Case (3658 mm)