Rinnai R63LSE2 Optional Piping for Circulation Systems, Rinnai Water Heater, For this application

Optional Piping for Circulation Systems

PLEASE NOTE THIS PIPING

ARRANGEMENT REDUCES

RESIDENTIAL AND COMMERCIAL

WARRANTY TO THE FOLLOWING:

3 Years On Heat Exchanger

3 Years On Parts

(Full warranty will be maintained if an on-demand recirculation system is incorporated.

Refer to the Limited Warranty.)

For this application:

Pump should be controlled by an Aquastat, Timer or Combination Aquastat and Timer.

Pump to be sized to maintain circulation loop temperature.

A minimum of 3 GPM flow is recommended for the circulation system.

The pump should be sized to overcome the pressure loss through the Rinnai water heater, supply and return plumbing. Refer - ence the Rinnai Hot Water System Design Manual, Pump Sizing for Circulation.

Pump to be of bronze or stainless construc - tion.

Note:

Water heater outlet temperature cannot be adjusted when circulation pump is running.

Minimum 3/4" Hot Water

Supply Line

Rinnai

Water Heater

Rinnai
Equipment List		QTY
Rinnai		1
Water Heaters
RIK-KIT (Optional)		1
(3/4" Fittings Include:
2	Unions, 2 Ball Valves,
2	Drain Valves and
1	Pressure Relief Valve.)

3/4" Gas Connection

Gas Supply

Minimum 3/4" Cold Water Supply Line

(Optional)

2-6 Gallon Storage Tank

(To eliminate cold water sandwich effect caused by frequent On/Off operation)

Expansion Tank

Building Fixture Outlets

	KEY
3/4" Ball Valve	Pressure Regulator
3/4" Union	Circulating Pump
Check Valve	Boiler Drain Valve
Pressure Relief Valve	S Solenoid 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 for and configuration of the particular system being installed. The drawing does not imply compliance with local building code requirements. It is the engineer/contractor responsiblity to ensure the installation is in accordance with all local building codes. Confer with local building officials before installation.

VA Series Outdoor LS Manual 25