Plumbing; Waste Outlet And P-Trap - Hussmann RDI-27 Installation & Operation Manual

All cases were leveled and joined prior to shipment to
insure the closest possible fi t when cases are joined in
the fi eld. When joining, use a carpenters level and shim
legs accordingly. Case must be raised correctly, under legs
where support is best, to prevent damage to case.
1. Check level of fl oor where cases are to be set.
Determine the highest point of the fl oor; cases will
be set off this point.
2. Level and set the fi rst case, carefully guiding the
electrical, refrigeration and drain lines through the
parent case. Case must be raised under legs where
support is best to prevent damage to case. Internal
bracing may be removed at this time.
3. Apply liberal bead of case joint sealant (NSF
Approved) to cover dotted area shown below.
DO NOT USE PERMAGUM!

Waste Outlet and P-TRAP

The waste outlet is located at the left hand end of these
fi xtures allowing drip piping to be run under the fi xture
lengthwise.
A 1 1/2" P-TRAP and threaded adapter are supplied with
each fi xture. The P-TRAP must be installed to prevent air
leakage and insect entrance into the fi xture.
Installing Condensate Drain
Poorly or improperly installed condensate drains can
seriously interfere with the operation of this re frigerator, and
result in costly maintenance and product losses. Please
follow the recommendations listed below when installing
condensate drains to insure a proper installation:
1. Never use pipe for condensate drains smaller
than the nominal diameter of the pipe or P-TRAP
supplied with the case.
2. When connecting condensate drains, the P-TRAP
must be used as part of the condensate drain
to prevent air leakage or insect entrance. Store
plumbing sys tem fl oor drains should be at least 14"
off the center of the case to allow use of the P-TRAP
pipe section. Never use two water seals in series in
any one line. Double P-TRAPS in series will cause a
lock and prevent draining.
Installation (Cont'd)
Proper case-joint sealing is extremely
It is the contractor's responsibility to install
case(s) according to local construction and

Plumbing

3. Always provide as much down hill slope ("fall") as
possible; 1/8" per foot is the pre ferred minimum.
PVC pipe, when used, must be sup ported to
maintain the 1/8" pitch and to prevent warping.
4. Avoid long runs of condensate drains. Long runs
make it impossible to provide the "fall" necessary for
good drainage.
5. Provide a suitable air break between the fl ood rim of
the fl oor drain and outlet of condensate drain. 1" is
ideal.
6. Prevent condensate drains from freezing:
a. Do not install condensate drains in contact with
non-insulated suction lines. Suction lines s hould
be insulated with a nonabsorbent insulation
material such as Armstrong's Armafl ex.
b. Where condensate drains are located in dead
air spaces (between refrigerators or between a
refrigerator and a wall), provide means to prevent
freezing. The water seal should be insulated to
prevent condensation.
5
important to prevent water leaks!
health codes.