Installation Manual

42 Rinnai Tankless Rack System (TRS) Installation Manual
Gas Supply
9
• A licensed professional must install the gas
supply.
• Turn o 120V power supply.
• Turn o the gas.
• Gas is ammable. Do not smoke or provide other
ignion sources while working with gas.
• Do not turn on the water heater or gas unl all
fumes are gone.
WARNING
Check the type of gas and gas supply
pressure before connecng the water
heaters. If the water heaters are not of the
gas type that the building is supplied with,
DO NOT connect the water heaters. Contact
the dealer for the proper water heaters to
match the gas type.
Instrucons
1
To connect the gas supply, follow the instrucons
below:
Perform a leak and pressure test prior to operang
the water heaters. If a leak is detected, do not
operate the water heaters unl the leak is
repaired.
2
Check the gas supply pressure immediately
upstream at a locaon provided by the gas
company. Supplied gas pressure must be
within the limits shown in the Specicaons
secon with all gas appliances operang.
3
Before placing the appliance in operaon, all
joints, including the heaters, must be checked
for gas ghtness by means of soap, gas leak
detector soluon, or an equivalent
nonammable soluon, as applicable. Since
some leak test soluons, including soap and
water, may cause corrosion or stress cracking,
the piping shall be rinsed with water aer
tesng, unless it has been determined that
the leak test soluon is non-corrosive.
4
Any compound used on the threaded joint of the
gas piping shall be a type that resists the acon of
liqueed petroleum gas (Propane/LPG).
5
The gas supply line shall be gas ght, sized, and
installed as to provide a supply of gas sucient to
meet the maximum demand of the heaters and all
other gas consuming appliances at the locaon
without loss of pressure.
6