Installation
7
Utility Connections
NOTE: Utility connections must be performed by
a qualified installer only.
WATER CONNECTION
NOTE: Hot water maximizes steam production
but is not required. Cold water may be
supplied to both inlets if hot water is not
available.
Connect the appliance to quality cold water via a
pressure hose with 19 mm couplings. Cold water
is connected to the left solenoid/pressure regula-
tor as views from the rear of the oven. Hot water
connection, right solenoid/pressure regulator, to
the boiler is recommended. A shut off valve must
be provided adjacent to the oven.
13mm appliance hose
with 19 mm hose fittings
Figure 2
Water must meet the following minimum require-
ments:
D
Total Dissolved Solids (TDS) content will not ex-
ceed 30 parts per million.
D
Water PH must be 7.0 or higher
WARNING!!
The use of poor quality water will invali-
date your warranty.
DRAIN CONNECTION
A 5 cm copper pipe with standard drain pitch must
be run to an open drain or connected to a stand-
pipe 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 5 cm
copper drain pipe to the drain connection. Re-
tighten the coupling clamps.
NOTE: The open end of the drain should be in-
stalled facing the floor. Copper line, 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.
5 cm Drain
Customer
Supplied
To Drain
Oven
Drain
Figure 3
Summary of Contents for COMBI COS-20G
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