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J. Water Supply Requirements and Installation
1. Water Supply Requirements
a. Water Quality
Unlike most steam cooking equipment, water quality can vary without major loss of
performance of a SteamChef steamer. Even hard water will not affect the operation of a
SteamChef Steamer as long as it is cleaned with vinegar daily.
• See the Operator’s Manual for cleaning instructions.
b. Water Supply System
• A potable water supply system must be available providing a minimum dynamic pressure
of 35 psi and a maximum static pressure of 60 psi.
• If the static pressure is above 60 psi, a pressure regulator must be used and set at
approximately 50 psi. Pressure above 60 psi can damage the solenoid valves.
2. Install the Water Supply Lines
Installation Requirements:
• The Garden Hose Thread (GHT) connector used must be NSF rated for food grade service.
• Do NOT apply pipe thread sealant to NHT or GHT connections.
• Apply non-hardening pipe thread sealant to all other threaded connections.
• Install a manual water shut-off valve (Main Water Shutoff Valve) (not provided) between the
cold water supply line(s) and the appliance.
• The National Sanitation Foundation (NSF) requires installation of a check valve (or other
approved anti-backflow / anti-siphon device) (not provided) in all supply lines in accordance
with and as required by local, state, and national health, sanitation and plumbing codes.
• Flush the water supply lines before connecting the lines to the appliance.
a. Connect the Water Supply Lines
• The Installer/Owner is responsible for the water connection of this appliance.
• This appliance is to be installed to comply with all applicable federal, state, or local plumbing
codes.
• Connect this appliance to COLD WATER
The condenser system and steam generator
will not work properly if they are connected to HOT or WARM water.
b. Water supply must have a minimum dynamic (flow) pressure of 35 psi and a maximum static
pressure of 60 psi.
c. If the static pressure is above 60 psi, a pressure regulator must be used and set at
approximately 50 psi. Pressure above 60 psi can damage solenoid valves. See Figures 3-10
and 3-11.
d. Install a manual water valve between the main cold water supply line(s) and the steamer
supply lines.
e. The National Sanitation Foundation (NSF) requires installation of a check-valve (or other
approved anti-backflow / anti-siphon device) (not provided) in all supply lines in accordance
with and as required by local, state, and national health, sanitation, and plumbing codes.
• Check local codes to determine exactly what type of anti-backflow / anti-siphon device is
necessary to meet local requirements.
f. Design the water supply line(s) so the unit can be moved for service.
g. If the supply water meets the requirements shown in the Warranty, then the Single Water
Supply Arrangement shown in Figure 3-10 may be used.
• If using the single water supply arrangement: The supply piping to the tee fitting must be
at least the next larger size of pipe than the connection provided on the appliance.
h. Although, 22CET’s are very tolerant of hard water, the owner may want to use conditioned