HydroTherm KN-2 Installation Instructions Manual

Cast iron condensing boilers
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Th is manual is intended only for use by a qualifi ed heating installer/technician. Read and follow this manual, all supplements and related
instructional information provided with the boiler. Install, start and service the boiler only in the sequence and methods given in these
instructions. Failure to do so can result in severe personal injury, death or substantial property damage.
Do not use the boiler during construction.
the burner, resulting in possible severe personal injury, death or substantial property damage. Th e boiler can only be operated with a dust-
free air supply. Follow the instruction manual procedures to duct air to the boiler air intake. If the boiler has been contaminated by operation
with contaminated air, follow the instruction manual guidelines to clean, repair or replace the boiler if necessary.
Affi x these instructions near to the boiler/water heater. Instruct the building owner to retain the instructions for future use by a qualifi ed
service technician, and to follow all guidelines in the User' s Information Manual.
Cast iron condensing boilers
Models K N-2 and K N-4
Vent/air manual

Installation instructions

for vent and air piping
Also read and follow:
K N Boiler manual
K N Control manual
Construction dust and particulate, particularly drywall dust, will cause contamination of
KN-2/4 VAM2-1012
K N
S e r i e s
P/N 42-9540 11/12 Copyright 2012 Hydrotherm

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Summary of Contents for HydroTherm KN-2

  • Page 1: Installation Instructions

    Affi x these instructions near to the boiler/water heater. Instruct the building owner to retain the instructions for future use by a qualifi ed service technician, and to follow all guidelines in the User’ s Information Manual. P/N 42-9540 11/12 Copyright 2012 Hydrotherm...
  • Page 2: Vent And Air Piping, General

    Page 2 KN INSTALLATION INSTRUCTIONS FOR VENT AND AIR PIPING The Hydrotherm KN boiler — Vent and air piping options Vent and air piping, general Pages 2, 3 and 4 are a brief overview of the options for vent and air piping confi gurations. Page 3 and 4 gives a summary and brief list of requirements for each of the vent/air confi guration options.
  • Page 3 KN INSTALLATION INSTRUCTIONS FOR VENT AND AIR PIPING Page 3 The Hydrotherm KN boiler — Vent and air piping options 1 Vent piped through the roof (combustion air from the boiler room) KN-2 KN-4 Vent components Heat-Fab Vent components Heat-Fab...
  • Page 4 Page 4 KN INSTALLATION INSTRUCTIONS FOR VENT AND AIR PIPING The Hydrotherm KN boiler — Vent and air piping options 4 Vent piped through a side wall (combustion air from the boiler room) KN-2 KN-4 Vent components Heat-Fab Vent components...
  • Page 5: Read Before Proceeding

    — Follow all applicable local codes when Code compliance installing the vent system. Where codes diff er from this manual, follow code requirements. Contact Hydrotherm if you have any questions regarding the installation. Terminate the vent following the guidelines in this manual.
  • Page 6: Combustion Air Openings

    ❑ Install the vents so they are no closer than 12 inches on and support. Long extensions of vent pipe above the roof may require the use of guy supports as specifi ed in the vent pipe instructions. centers. P/N 42-9540 11/12 Copyright 2012 Hydrotherm...
  • Page 7 — Follow all applicable local codes when Code compliance installing the vent system. Where codes diff er from this manual, follow code requirements. Contact Hydrotherm if you have any questions regarding the installation. Terminate the vent and air piping following the guidelines in this manual.
  • Page 8: Vent Piping Components

    Long extensions of vent pipe above the roof may require the use of for details on pitched roof applications. guy supports as specifi ed in the vent pipe instructions. ❑ See Figure 4 for additional minimum clearances. P/N 42-9540 11/12 Copyright 2012 Hydrotherm...
  • Page 9: Air Pipe Termination

    EZ-Seal air pipe installations. Th e air piping termination must be constructed using the stainless steel vent materials listed in Table 2 to ensure the confi guration is correct. DO NOT terminate the air piping with any other method. P/N 42-9540 11/12 Copyright 2012 Hydrotherm...
  • Page 10: Venting Multiple Boilers

    ❑ Install multiple air pipes through the side wall following all ❑ Install the vents so they are no closer than 12 inches on centers. guidelines for single-air pipe installations. ❑ Install the terminations so they are no closer than 12 inches on centers. P/N 42-9540 11/12 Copyright 2012 Hydrotherm...
  • Page 11 — Follow all applicable local codes when Code compliance installing the vent system. Where codes diff er from this manual, follow code requirements. Contact Hydrotherm if you have any questions regarding the installation. Terminate the vent and air piping following the guidelines in this manual.
  • Page 12 ❑ See Figure 9 for additional minimum clearances. Th e vent must always terminate at least 4 feet (1.2 m) above the air intake termination. P/N 42-9540 11/12 Copyright 2012 Hydrotherm...
  • Page 13: Air Pipe Connection

    ❑ Provide a support every 3 feet for air pipe lengths greater than 5 feet horizontally. ❑ Provide a support on the horizontal piping within 6 inches of every upturned elbow to support the vertical run. P/N 42-9540 11/12 Copyright 2012 Hydrotherm...
  • Page 14 ❑ Install the terminations so they are no closer than 12 inches on centers. ❑ Provide minimum 5 feet between the center line of any vent termination and any air intake termination. P/N 42-9540 11/12 Copyright 2012 Hydrotherm...
  • Page 15 — Follow all applicable local codes when Code compliance installing the vent system. Where codes diff er from this manual, follow code requirements. Contact Hydrotherm if you have any questions regarding the installation. Terminate the vent and air piping following the guidelines in this manual.
  • Page 16: - Support The Vent Piping Completely

    ❑ Follow applicable codes and the vent pipe instructions to install fi re stops, thimbles or other devices at all fl oor and wall penetrations. continued on next page ❑ Provide minimum 2 inches (51 mm) clearance to all combustible construction. P/N 42-9540 11/12 Copyright 2012 Hydrotherm...
  • Page 17: Sidewall Termination

    ❑ Install the vents so they are no closer than 12 inches If the pipe extends more than 3 feet, insulate the external portion of the pipe (305 mm) on centers. and fi tt ings with at least 1/2-inch closed-cell foam polyolefi n pipe insulation. P/N 42-9540 11/12 Copyright 2012 Hydrotherm...
  • Page 18 (combustion air from the boiler room) (cont.) Figure 12 Termination minimum clearances Figure 13 Using external piping to raise the termination To convert to metric dimensions: meters = feet x 0.3 millimeters = inches x 25.4 P/N 42-9540 11/12 Copyright 2012 Hydrotherm...
  • Page 19 — Follow all applicable local codes when Code compliance installing the vent system. Where codes diff er from this manual, follow code requirements. Contact Hydrotherm if you have any questions regarding the installation. Terminate the vent and air piping following the guidelines in this manual.
  • Page 20: Sidewall Termination Assemblies

    ❑ Follow applicable codes and the vent pipe instructions to install fi re stops, thimbles or other devices at all fl oor and wall penetrations. continued on next page ❑ Provide minimum 2 inches (51 mm) clearance to all combustible construction. P/N 42-9540 11/12 Copyright 2012 Hydrotherm...
  • Page 21 ❑ See Figure 18 for relative placement of vent and air terminals of the pipe and fi tt ings with at least 1/2-inch closed-cell foam polyolefi n pipe insulation. Air pipes do not have to be insulated. to ensure suffi cient clearance. P/N 42-9540 11/12 Copyright 2012 Hydrotherm...
  • Page 22 Minimum spacing between vent and air termination elbows (vents must also be placed to meet the minimum spacings shown in Figure 16) To convert to metric dimensions: meters = feet x 0.3 millimeters = inches x 25.4 P/N 42-9540 11/12 Copyright 2012 Hydrotherm...
  • Page 23 — Follow all applicable local codes when Code compliance installing the vent system. Where codes diff er from this manual, follow code requirements. Contact Hydrotherm if you have any questions regarding the installation. Terminate the vent and air piping following the guidelines in this manual.
  • Page 24: Sidewall Termination/Concentric Vent-Air Assembly

    ❑ Follow applicable codes and the vent pipe instructions to install fi re stops, thimbles or other devices at all fl oor and wall penetrations. continued on next page ❑ Provide minimum 2 inches (51 mm) clearance to all combustible construction. P/N 42-9540 11/12 Copyright 2012 Hydrotherm...
  • Page 25 ❑ Install the terminations so they are no closer than 2 feet (0.6 m) on horizontal centers and 4 feet on vertical centers (Figure 22). ❑ All terminations must comply with minimum clearances shown in Figure 21. P/N 42-9540 11/12 Copyright 2012 Hydrotherm...
  • Page 26 Minimum spacing between terminations spacing between terminations) (terminations must also be placed to meet the minimum spacings shown in Figure 21) To convert to metric dimensions: meters = feet x 0.3 millimeters = inches x 25.4 P/N 42-9540 11/12 Copyright 2012 Hydrotherm...
  • Page 27 KN INSTALLATION INSTRUCTIONS FOR VENT AND AIR PIPING Page 27 P/N 42-9540 11/12 Copyright 2012 Hydrotherm...
  • Page 28 IN UNITED STATES: 260 NORTH ELM ST. • WESTFIELD, MA 01085 • (413) 564-5515 • FAX (413) 568-9613 IN CANADA: 7555 TRANMERE DRIVE • MISSISSAUGA, ONT. L5S 1L4 • (905) 672-2991 • FAX (905) 672-2883 www.hydrothermkn.com...

This manual is also suitable for:

Kn-4

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