49
INSTALLATION INSTRUCTIONS
Open the shut-off valve in the COLD water Inlet line
to check the water flow through the water heater.
Close the shut-off valve and remove, clean, and
replace the water filter.
NOTICES:
• B e sure to connect the COLD water inlet and the
HOT water outlet as shown on the water heater. If
reversed, the water heater will not function.
• The flow rate of HOT water may vary when more than
two faucets (appliances, fixtures, etc.) are being
used simultaneously.
• The pipes MUST be completely drainable. If the HOT
water faucets are located at a point higher than the
water heater, place a drain valve at the lowest point.
It is recommended to use unions and flexible copper
connections at the COLD and HOT water lines. They
allow the water heater to be disconnected easily for
servicing.
Use the following guidelines when connecting
the HOT WATER OUTLET:
• Connections between the water heater and point(s)
of use should be as short as possible.
• Local codes shall govern the piping used for water
connections.
• T o conserve energy and to prevent freezing, insulate
both COLD and HOT water supply lines. Do not
insulate drain line or pressure-relief valve.
5
4
Pressure
Relief Valve
Pressure
Relief Valve
Cold Water
Service Valve
Cold Water
Service Valve
Water
Inlet
Water
Inlet
Water
Outlet
Water
Outlet
Hot Water
Service Valve
Hot Water
Service Valve
Drain
Drain
Water Piping Arrangement With Service Valve Kit
Service valve kits are available on all tankless water
heater systems. All kits include two full-port isolation
valves to be used in the COLD and HOT water lines.
When installed, these valves allow one person full
diagnostic testing and ease of flushing the system.
Contact your distributor or place of purchase for
availability and installation information.
Water Supply Installation (cont.)
Plumbing
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