Kenmore 305, 505 owner manual For the circulation system, Minimum 3/4 ColdWater Supply Une

Page 17

Figure 7: Optional Piping for Circulation Systems

NOTE:

Applications, using this piping

arrangement reduces the

warranty to the following:

3 years on heat exchanger

3 year on parts

Full warranty will be maintained if an on-demand recirculation system in incorporated. Refer to the Limited Warranty.

For this application:

oo

Water Heater

Equipment ListQTY

Water Heaters

1

Plumbing Installation 1

Kit (Optional)

(314" Fittings Include:

2 Unions, 2 Ball Valves,

2 Drain Valves and

I Pressure Relief Valve.)

Pump should be controlled by an Aquastat,

Timer or Combination Aquastat and Timer.

Pump to be sized to maintain circulation loop temperature.

o

A minimum of 3 GPM flow is recommended

for the circulation system.

The pump should be sized to overcome the T

pressure loss through the water heater, supply and return plumbing.

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

 

 

(Optional)

 

2-6 Gallon

 

Storage

Tank

 

(To eliminate cold water

 

0

 

 

sandwich effect caused by

 

frequent

On/Off operation)

o

3/4" Gas Connection

Gas Supply

Minimum 3/4" ColdWater Supply Une

Expansion Tank

Building Fixture Outlets

_

;

KEY

I &

3/4"

Ball

Valve

 

_

Pressure

Regulator

--

3/4"

Union

 

 

 

Circulating

Pump

 

 

 

 

 

 

 

Check

Valve

 

 

Boiler Drain Valve

 

 

 

 

 

 

Z_

Pressure

Relief

Valve

[_

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 and

configuration of the particular system being installed. This drawing does

not imply compliance with local building code requirements. It is the

responsibility of the contractor/engineer to ensure installation is in

accordance with all local building codes. Confer with local building officials before installation.

305 & 505 Outdoor Manual

17

Image 17
Contents Direct Vent Tankless Water Heaters 505 ModelsImportant Definitions Read and follow water heater warnings and instructionsSafety Features Safety Behavior and PracticesSafety Precautions Safe Installation UseDimensions Technical Pressure Relief Valve FreezeMaster Protection Agreements ImportantInformationAbout This Water Heater Excessive Weight HazardModels 505 Model++D Outlet Flow Data Pressure Drop CurveTos General InstructionsElectrical Connection 120vAccoe,o22,RES..EcTPipe Sizing Table Natural Gas Pipe Sizing Procedure ExampleLength Pipe Size Inches Pipe Sizing Table Propane GasFreezing Protection General InstructionsPressure Relief Valve Water Heater Freeze Protection Piping DrawingRecommended Piping for Basic Installation Recommended Piping for Circulation Systems Water HeaterMinimum 3/4 ColdWater Supply Une For the circulation systemClosed Corner Guidelines Mounting the Controller LocationCable Length and Size Sequence of Operation Features Available on Temperature ControllersFeatures Description 160F 71C 150F 66C 140F 60C 130F 54C 120F 49C 80F 27C Temperature Ranges Temperature Options without a Temperature ControllerModel Temperature Settings Available Re-setting the Maximum TemperatureFor Your Safety Read Before Operating Vent System Temperature ControllerMotors Lime / Scale Build-upRemedy Error Codes Code FaultLC or Thermal FuseAccessing Operating Information When I open a hot tap, I do not immediately get hot waterWater Quality Maximum LevelH1 Circulating Pump Flushing the Heat Exchanger ErrorCode LC orSW,TC......i,seF Repair Parts List 305&505OutdoorManual33 34305&505OutdoorManual 305&505OutdoorManual35 Iiiiiiiii