44 KBP Series Manual
Piping Diagram for Cross Over Installaon
The condensate drain pipe (along its enre length) must be at least the same diameter as the drain line, (1/2
inch NPT). Refer to the Condensate secon in the venng instrucons secon of this manual.
Flow through Cross
Over Valve must be
less than 0.8gpm.
Thermal expansion tank
Maximum Pipe Length
(Hot and Cold Water Supply Lines)
Pipe Diameter 3/4" 1/2"
Short Loop 200 50
Long Loop 400 100
Thermal By-Pass Valve
(Supplied with unit)
Hot Water Fixtures
Hot Water Supply Line
Cold Water Supply Line
Gas Supply
3/4”” Ball Valve
Flow Check Valve
Drain Valve
Pressure Relief Valve
This is not an engineered drawing. It is intended only as a guide and not as
a replacement for professionally engineered project drawings. This drawing
is not intended to describe a complete system. It is up to the contractor/
engineer to determine the necessary components and conguraon of the
parcular system being installed. This drawing does not imply compliance
with local building code requirements. It is the responsibility of the
contractor/engineer to ensure installaon is in accordance with all local
building codes. Confer with local building ocials before installaon.
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