RU130EP Installation and Operation Manual

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Rinnai Tankless Water Heater Installation and Operation Manual 17

4. 4. Install the Water HeaterInstall the Water Heater

THIS SECTION IS INTENDED FOR THE

INSTALLER

Installer qualications: A trained and qualied

professional must install the appliance, inspect

it, and leak test the water heater before use. The

warranty may be voided due to any improper

installation. The trained and qualied professional

should have skills such as: Gas sizing; Connecting

gas lines, water lines, valves, and electricity;

Knowledge of applicable national, state, and

local codes; Installing venting through a wall or

roof; and training in installation of tankless water

heaters. Training for Rinnai Tankless Water

Heaters is accessible online at

www.trainingevents.rinnai.us.

4.1 Installation

Guidelines

When installing the water heater, follow these

guidelines:

• This water heater is certied for installation

in residential applications and manufac-

tured (mobile) homes.

• This water heater is suitable for combina-

tion water heating and space heating and

not suitable for space heating applications

only.

• The installation must conform with local

codes or, in the absence of local codes,

with the National Fuel Gas Code, ANSI

Z223.1/NFPA 54, or the Natural Gas and

Propane Installation Code, CSA B149.1.

If installed in a manufactured home, the

installation must conform with the Manu-

factured Home Construction and Safety

Standard, Title 24 CFR, Part 3280 and/

or CAN/SCA Z240 MH Series, Mobile

Homes.

• The appliance, when installed, must be

electrically grounded in accordance with

local codes or, in the absence of local

codes, with the National Electrical Code,

ANSI/NFPA 70, or the Canadian Electrical

Code, CSA C22.1.

• The appliance and its main gas valve

must be disconnected from the gas supply

piping system during any pressure testing

of that system at test pressures in excess

of 1/2 psi (3.5 kPa) (13.84 in W.C.). For

system testing at pressures less than or

equal to 1/2 psi (3.5 kPa) (13.84 in W.C.)

the appliance must be isolated from the

gas supply piping by closing its individual

manual shuto󰀨 valve.

• You must follow the installation instructions

and those in section “4.5 Vent the Water

Heater” for adequate combustion air and

exhaust.

• If a water heater is installed in a closed

water supply system, such as one having

a backow preventer in the cold water sup-

ply line, means shall be provided to control

thermal expansion. Contact the water sup-

plier or local plumbing inspector on how to

control thermal expansion.

• Should overheating occur or the gas sup-

ply fail to shut o󰀨, turn o󰀨 the manual gas

control valve to the appliance.

 (En cas de surchaue ou si l’alimentation

en gaz ne s’arrête pas, fermez manuelle-

ment le robinet d’arrêt de l’admission de

gaz.)

• Combustion air must be free of chemicals,

such as chlorine or bleach, that produce

fumes. These fumes can damage com-

ponents and reduce the life of your appli-

ance.

Topics in this section

• Installation Guidelines

• What you will need

• Choose Installation Location

• Mount Water Heater to the Wall

• Vent Water Heater

• Connect Water Supply

• Install Isolation Valves

• Install Pressure Relief Valve

• Connect Condensate Drain

• Connect Gas Supply

• Connect Power Supply

• Congure Parameter Settings

• Connect External Pump with Circ-Logic

• Post-Installation Checklist

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Installation and Operation Manual - Page 17