Line Sizing (Remote Models); Oil Traps; Pressure Drop; Water Outlet And Water Seal - Hussmann HGM-3 BS Installation & Operation Manual

I
2-2
nstallatIon
Risk of Electric Shock. If cord or plug
becomes damaged, replace only with
a cord and plug of the same type.
Merchandiser must be grounded.
Do not remove the power supply cord ground.
LINE SIZING
(Remote Models)
Refrigerant line connections are made at
the right end of merchandiser (facing front)
beneath the refrigerated display area. The
refrigerant line connection size is
5
suction line is / in. Refrigerant lines should
8
be sized as shown on the refrigeration legend
that is furnished for the store or according to
ASHRAE guidelines.

Oil Traps

P-traps (oil traps) must be installed at the base
of all suction line vertical risers.

Pressure Drop

Keep refrigerant line runs as short as possible
to avoid large pressure drops. Use a minimum
number of elbows. Where elbows are required,
use long radius elbows only
When brazing pipes, be sure to use the
insulation blanket shipped with the
merchandiser to prevent damage to the
metal merchandiser bottom.
P/N 0515297_E

WATER OUTLET AND WATER SEAL

The cabinet is provided with a factory installed
outlet for defrost water. It runs from the
bottom of the display area to an evaporation
pan near the condenser unit.
The outlet is not connected to the waste water
system for washing out the cabinet. This system
is designed to evaporate normal condensate.
This system should be checked regularly, especial-
ly during high relative humidity conditions, to
verify the condensate tube is not blocked, and
3
/ in. The
8
that the pan does not accumulate too much
water which could spill out on the floor.
To avoid serious injury or death from electri-
cal shock, always disconnect the electrical
power at the main disconnect when servicing
or replacing any electrical component. This
includes, but is not limited to, such items as
doors, lights, fans, heaters, and thermostats.
.
U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • www.hussmann.com
Refrigeration lines are under pressure.
Refrigerant must be recovered before
attempting any connection or repair.
— LOCK OUT / TAG OUT —
Product will be degraded and may spoil if
allowed to sit in a non-refrigerated area.