9 VENTING

9.1Venting the TRICON:

TRICON models are designed for operation only with stainless steel venting listed by UL, ULC, ETL or CSA for Category IV, positive pressure, gas appliance venting. Follow the vent manufacturer’s instructions for installation, sealing, supporting and terminating their vent system. Do not use plastic venting of any type. Do not use a barometric damper with the TRICON positive pressure vent.

WARNING: Use only stainless steel venting listed by a nationally recognized testing laboratory for Category IV, positive pressure, gas appliance venting. Use of plastic pipe of any type or use of venting materials other than specified in these instructions can result in failure of the venting system and/or exposure to carbon monoxide which can result in property damage, personal injury or death.

WARNING: Do not vent this water heater into an existing or traditional gas vent or chimney or combine the vent with any other appliance. Such venting could result in failure of the venting system and/or exposure to carbon monoxide which can result in property damage, personal injury or death.

9.2Maximum Category IV Vent Length (Equivalent Length)

A vertical or horizontal remote Category IV vent system must be used with this appliance. The maximum length of field supplied Category IV vent is shown in the chart below titled Category IV Vent Equivalent Length.

Maximum Category IV Vent Equivalent Length

Vent Size

6” Vent

7” Vent

8” Vent

9” Vent

Max Equivalent Length

100 feet

130 feet

250 feet

450 feet

Pipe fittings reduce the maximum allowable vent length. Use the Category IV vent manufacturer’s equivalent length deduction for all elbows, terminations, etc. If the information is not readily available from the vent manufacturer, use the Vent Fitting Equivalent Length chart below to find the total equivalent length for all vent fittings in your combustion air system. Then subtract this number of feet from the total equivalent length allowed in Maximum Category IV Vent Equivalent Length chart above. The sum of this calculation is the maximum length of straight vent allowed. If a longer length is required, repeat the calculation using a larger vent size. When using this chart, no additional deduction is required for the addition of the vent system terminal.

Vent Fitting Equivalent Length

 

Vent Pipe:

6” Vent

7” Vent

8” Vent

9” Vent

90º

Elbow

8 feet

9 feet

10 feet

11 feet

 

 

 

 

 

 

90º

Long Radius Elbow

5 feet

5 feet

5 feet

6 feet

45º

Elbow

5 feet

5 feet

5 feet

5 feet

The following vent information is provided for use in design calculations, if needed.

Venting Specifications

Input Mbtu

Products of Combustion

Max Vent

Volume (cfm)

Press. “W.C.

 

1500

350

1.7

1800

420

2.0

2000

467

2.0

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PV500-47C 06/12

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PVI Industries PV500-47C manual Venting the Tricon, Maximum Category IV Vent Length Equivalent Length

PV500-47C specifications

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