Munchkin Gas-Fired Hot Water Circulating Heater Exhaust Vent and Intake AIR Pipe, Installation

Page 41

GAS-FIRED HEATER Installation Manual

PART 7: VENTING, COMBUSTION AIR & CONDENSATE REMOVAL (CONTINUED)

1.The exhaust vent and intake air vent pipes should be 2" or greater, Schedule 40 or 80.

2.The total combined equivalent length of exhaust vent and intake air pipe should not exceed 85 feet for 2" and 125' for 3".

a.The equivalent length of elbows, tees, and other fittings are listed in the Friction Loss Table 7.6.

*Friction loss for long radius elbow is 1 foot less.

exhaust vent.

3.The minimum combined equivalent length is 16 equivalent feet.

4.The maximum combined equivalent length can be extended by increasing the diameter of both exhaust vent and intake air vent pipe equally. However, the transitions should begin a minimum of 15 equivalent feet from the heater.

b. For example: If the exhaust vent has two

Table 7.6

FRICTION LOSS EQUIVALENT IN PIPING AND FITTINGS

FITTINGS OR PIPING

EQUIVALENT FEET

 

 

 

 

2"

3"

 

 

 

90 DEGREE ELBOW*

5'

5'

 

 

 

45 DEGREE ELBOW

3'

3'

 

 

 

COUPLING

0'

0'

 

 

 

AIR INLET TEE

0'

0'

 

 

 

STRAIGHT PIPE

1'

1'

 

 

 

CONCENTRIC VENT KIT

3'

3'

 

 

 

V500 2" VENT KIT

1'

N/A

 

 

 

V1000 3" VENT KIT

N/A

1'

 

 

 

90° elbows and 10 feet of PVC pipe we will calculate:

Exhaust Vent Pipe Equivalent Length = (2x5)+10=20 feet

Further, if the intake air vent pipe has two 90° elbows, one 45° elbow and 10 feet of PVC pipe, the following calculation applies:

Intake Air Vent Pipe Equivalent Length = (2x5)+3+10=23 feet

Finally, if a concentric vent kit is used we find:

Total Combined Equivalent Length = 20+23+3=46 feet

Therefore, the total combined equivalent length is 46 feet which is well below the maximum of 85 feet.

c.The intake air vent pipe and the exhaust vent are intended to penetrate the same wall or roof of the building.

d.Effort should be made to keep a minimum difference in equivalent length between the intake air vent pipe and the

a.Transitions should always be made in vertical sections of pipe to prevent the condensate from pooling in the vent pipe.

b.Use a 3” x 2” reducing coupling to transition from the 2” connections to a 3” vent.

c.The maximum equivalent length for the increased diameter vent pipes is 125 feet.

d.If the transition occurs at a distance greater than 15 equivalent feet from the heater, the maximum equivalent length will be reduced. See Table 7.7. The standard Vent Pipe for Munchkin Contender is 2".

F. EXHAUST VENT AND INTAKE AIR PIPE

Table 7.7: Vent Termination Kits

Transition

TEL of

TEL of

Maximum

Point

Standard

Oversized

TEL of all

(ft from

2" Vent

2" or 3" Vent

Vent Pipe (ft)

heater)

Pipe (ft)

Pipe (ft)

 

15

30

95

125

 

 

 

 

20

40

77-1/2

117-1/2

 

 

 

 

25

50

60-1/2

110-1/2

 

 

 

 

30

60

43

103

 

 

 

 

35

70

26

96

 

 

 

 

40

80

8-1/2

88-1/2

 

 

 

 

None

85

0

85

 

 

 

 

TEL = Total Equivalent Length

INSTALLATION

1.On the Munchkin Contender the 2" exhaust vent connection is located on the top, right side of the unit and the air intake is on the top, left side. Sealant or adhesive is required for all fittings.

2.Use only solid PVC, CPVC, or ABS schedule

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Contents Installation Manual What to do if YOU Smell GAS Contents Contents CONT’D Definitions Part 1 Product and Safety InformationHeater Water Munchkin Contender OperationFreeze Protection Fluids Winterizing the Munchkin ContenderModulating Combustion System Gas ValveReturn water temperature sensor Supply water temperature sensorTemperature and pressure gauge Swirl Plate SystemPart 2 HOW the Munchkin Contender Operates CONT’D Installations Must Comply withBefore Locating the Munchkin Contender Clearances for Service AccessPrevent Combustion AIR Contamination Residential Garage InstallationExhaust Vent and Intake AIR Vent Part 4 Prepare Munchkin Contender Heater Munchkin Contender Wall Mounting Instructions Installation StepsPart 5 Munchkin Contender Piping Circulators Part 5 Munchkin Contender PipingCirculator Sizing Fill and Purge Heating System System Temperature Rise ChartZoning with Zone Valves Munchkin Contender PipingZoning with Circulators Multiple HeatersContender Piping Details Piping symbol legendDrawing 1A Standard Munchkin Contender! Heater zoning with valvesDrawing 1B Standard Munchkin Contender Heater zoning with valvesSpace heating zone circuit See note Make-up water Installation Manual GAS-FIRED Heater Installation Manual Space heating zone circuit Vision I System Piping Zoning with Circulators Using VisionHeater Piping Details with the Vision I System Drawing 2ADrawing 2B OFF Drawing 2CDrawing 3A Drawing 3B Drawing 3C Outdoor Temperature sensor Vision 1 system purgeDrawing 3D Drawing 3E Drawing 3F Drawing 3G General Installing Exhaust Vent and Intake AIR VentExhaust Vent and Intake AIR Vent Pipe Location Exhaust Vent and Intake AIR Vent Sizing Part 7 VENTING, Combustion AIR & Condensate RemovalInstallation Manual Reference National Fuel Gas Code Ansi Z223.1/NFPA 54 Exhaust Vent and Intake AIR Pipe InstallationVent Termination Kits Description Stock Code Heater Removal from a Common Vent SystemCanada Condensate Removal SystemMaterial Sidewall Venting with KIT Diagrams for Sidewall Venting12 2 roof vent with tee intake & coupling exhaust GAS Connection Part 8 GAS PipingGAS Piping GAS TableTAP Inlet Dungs GAS ValveField Wiring Installation Must Comply withLine Voltage Wiring ThermostatPart 9 Field Wiring Part 9 Field Wiring Indirect Circulator P2 Program Part 10 Field Wiring Vision 1 OptionPart 11. START-UP Preparation Freeze Protection When UsedCHECK/CONTROL Water Chemistry Fill and Test Water SystemCheck Thermostat Circuits Check for GAS LeaksPurge AIR from Water System Condensate Removal Part 12. START-UP ProcedureAdjusting the Setpoint Part 12. START-UP ProcedureOperating Instructions Status MenuProgramming the Vision I Option Test ModeVision 1 Program Access Vision 1 Program Navigation Central Heating Curve Function Default Function Function Value DescriptionFunction Function Default Setting Programmed Setting Control Program Reference ChartHeater Fault Munchkin Error CodeHeater Error 925 Control Board Fault Codes Description Remedy Part 14 TroubleshootingOutdoor Sensor 7250P-319 Maintenance ProceduresSure Exhaust Vent is no Longer Blocked For GAS LeaksReplacement Parts Part 15 MaintenanceReplacement Parts Replacement Parts Light Off Activities Heater Start UP ReportHeater Inspection and Maintenance Schedule Heater Inspection and Maintenance Schedule Maintenance Notes Maintenance Notes 2007, 2006 Heat Transfer Products, Inc LP-171 REV /20/07

Gas-Fired Hot Water Circulating Heater specifications

The Munchkin Gas-Fired Hot Water Circulating Heater is a cutting-edge heating solution designed to provide efficient and reliable hot water for residential and commercial applications. Renowned for its compact design and innovative technology, the Munchkin heater combines performance with energy efficiency, making it an ideal choice for those seeking comfort and cost savings.

One of the main features of the Munchkin heater is its modulating burner. This technology intelligently adjusts the heating output based on the demand for hot water, ensuring that energy is not wasted. This leads to lower energy bills and a reduction in environmental impact, as the system only uses the necessary resources to maintain desired water temperatures.

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Safety is also a top priority with Munchkin products. The heater includes built-in safety features such as flame monitoring systems, automatic shut-off capabilities, and pressure relief valves, providing peace of mind for users.

In summary, the Munchkin Gas-Fired Hot Water Circulating Heater is a high-efficiency, compact, and innovative solution for hot water needs. With its modulating burner, high-efficiency rating, advanced control systems, and safety features, it stands out as a reliable choice for those looking to invest in heating technology that prioritizes energy conservation and performance. This heater is truly a forward-thinking solution for modern hot water requirements.
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