KBD Series Manual
5
Prepare for installation
Parts included
Tools needed
Materials needed
The appliance must be isolated from the gas supply
piping system by closing its individual manual
shutoff valve during any pressure testing of the gas
supply piping system at test pressures equal to or
less than 1/2 psi (3.5 kPa) (13.84 in W.C.).
You must follow the installation instructions and
those in
Care and Maintenance
for adequate
combustion air intake and exhaust.
INFORMATION
If a water heater is installed in a closed water
supply system, such as one having a backflow
preventer in the cold water supply line, means
shall be provided to control thermal expansion.
Contact the water supplier or local plumbing
inspector on how to control thermal expansion.
Should overheating occur or the gas supply fail to
shut off, turn off the manual gas control valve to
the appliance.
Keep the air intake location free of chemicals, such
as chlorine or bleach, that produce fumes. These
fumes can damage components and reduce the life
of your appliance.
Tankless water heater
Color coded cold (blue) and hot (red) isolation
valves
Pressure relief valve
MC-91-2 temperature controller (integrated into
indoor models; provided with outdoor models)
Self Tapping Screws (Qty - 2)
Pipe wrenches (2)
Adjustable pliers
Screwdrivers (2)
Wire cutters
Gloves
Safety glasses
Level
Tools that might be needed
Hammer drill with
concrete bits
Saw
Threading machine with
heads and oiler
Core drill with diamond
head
Torch set
Copper tubing cutter
Steel pipe cutter
Materials that may be needed
Soap or gas leak
detector solution
Approved venting
Teflon tape
(recommended) or pipe
compound
Heat tape
Pipe insulation
Electrical wire and
conduit per local code
Concrete wall anchors
Optional pipe cover
Optional temperature
controller
PVC glue/cement
5/8” ID PVC flexible
tubing
2 conductor 22 AWG
wire for controller
Single gang electrical
box
Wire nuts
Unions and drain valves
General Instructions (continued)
