Rinnai RH180 Installation Manual download pdf (Page 24)

24 RH180 Manual

 Any compound used on the threaded joint of the

gas piping shall be a type which resists the acon

of liqueed petroleum gas (propane / LPG).

 The gas supply line shall be gas ght, sized, and so

installed as to provide a supply of gas sucient to

meet the maximum demand of the heater and all

other gas consuming appliances at the locaon

without loss of pressure.

 Always check all gas pipe connecons and ngs

for leaks before operang the water heater. Use

soapy water on all ng and visually inspect for

bubble formaon. Rinse o soapy water and wipe

dry.

INFORMATION

 Refer to an approved pipe sizing chart if in doubt

about the size of the gas line.

Installaon of Gas Supply

MUST DO

 A manual gas control valve must be placed in the

gas supply line to the water heater. A union can be

used on the connecon above the shut o valve

for the future servicing or disconnecon of the

unit.

 Check the type of gas and the gas inlet pressure

before connecng the water heater. If the water

heater is not of the gas type that the building is

supplied with, DO NOT connect the water heater.

Contact the dealer for the proper unit to match the

gas type.

 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.

 Before placing the appliance in operaon all joints

including the heater must be checked for gas

ghtness by means of leak detector soluon, soap

and water, 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.)

 Use approved connectors to connect the unit to

the gas line. Purge the gas line of any debris

before connecon to the water heater.

General Instrucons

WARNING

1. If you are not knowledgeable or qualied to

install gas lines or connecons, then contact a

licensed professional to install the gas supply.

2. Turn o 120v power supply.

3. Turn o the gas.

4. Gas is ammable. Do not smoke or provide other

ignion sources while working with gas.

5. Do not turn on the water heater or gas unl all

fumes are gone.

In order to access the gas connecons, remove the

screws that aach the lower enclosure to the

assembly

Gas Connecon (1/2” MNPT)

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Rinnai RH180 Installation Manual Page 24

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