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Installation
Utility Connections
WATER CONNECTION
NOTE: Hot water maximizes steam production
but is not required. Cold water may be sup-
plied to both inlets if hot water is not avail-
able. Hot water must not be applied to the
cold water inlet.
COS-20E and BCS-20E --- Connect cold water
hose to the cold water (left) solenoid and hot water
to the hot water (right) solenoid. Use pressure
hose with 3/4" (1.9 cm) fittings and wall shut off
valves for service.
COS-20EDS and CNV-20E --- Connect the units
to quality cold water via a pressure hose with 3/4"
(1/9 cm) couplings.
1/2" Appliance Hose
With 3/4" Hose Fittings
Figure 2
Water must meet the following minimum require-
ments:
Total Dissolved Solids (TDS) content will not ex-
D
ceed 30 parts per million.
Water PH must be 7.0 or higher
D
WARNING!!
The use of poor quality water will invali-
date your warranty.
DRAIN CONNECTION
A 2" (5 cm) copper pipe with standard drain pitch
must be run to an open drain or connected to a
standpipe equipped with a vent.
NOTE: The waste water can also be directed to a
nearby floor drain. Flexible hose which al-
lows trapped water to accumulate in
sagged runs must be avoided.
1. Find the drain connection on the lower rear of
the unit.
2. Loosen the coupling clamps. Attach a 2" (5
cm) copper drain pipe to the drain connection.
Retighten the coupling clamps.
NOTE: The open end of the drain should be in-
stalled facing the floor. Copper pipe, used
for installation to an open drain or floor
sink, must be supplied by the installer. Use
of a trap inline will cause drain backup.
8
Oven
Drain
2" Drain
Customer
Supplied
To Drain
Figure 3
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