Comfort Glow CGN20T - Manual

Comfort Glow CGN20T

Comfort Glow CGN20T – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – CONTENTS; SECTION; SAFETY; WARNINGS; DANGER; Carbon monoxide poisoning may lead to death!; Early signs of carbon monoxide poisoning; Natural Gas; : Natural gas is odorless. An odor-making agent is added to natural
  • Page 3 – Continued
  • Page 4 – dealer where you bought heater.; Safety Device
  • Page 5 – WARNING; Confined and Unconfined Space; per kw) of the aggregate input rating of all; PROVIDING ADEQUATE VENTILATION; Unusually Tight Construction; ous water vapor retarder with a rating of one perm (6x10
  • Page 6 – Determining if You Have a Confined or Unconfined Space
  • Page 7 – National Fuel; VENTILATION AIR; Ventilation Air From Inside Building; Figure 2 - Ventilation Air from Inside Building
  • Page 8 – Figure 3 - Ventilation Air from Outdoors; Ventilation Air From Outdoors
  • Page 9 – NOTICE; CHECK GAS TYPE; This heater is designed to be mounted on a wall.; Never install the heater; CAUTION
  • Page 10 – For convenience and efficiency, install heater; Figure 4 - Mounting Clearances As Viewed From Front of Heater; INSTALLING TO; If you install the heater in a home garage; Figure 5 - Attaching Thermostat Sensing Bulb; THERMOSTAT SENSING BULB; Locating Thermostat Sensing Bulb; opening in bottom of heater.
  • Page 11 – INSTALLING HEATER TO WALL; Mounting Bracket; Figure 6 - Bracket Location; Figure 7 - Removing Front Panel Of Heater; Methods For Attaching Mounting Bracket To Wall; Attaching to wall stud; This method provides the strongest hold. Insert mounting; Attaching to wall anchor; This method allows you to attach mounting bracket to; Removing Front Panel Of Heater
  • Page 12 – Marking Screw Locations; screws through these holes only.; Figure 8 - Mounting Bracket Clearances; Attaching Mounting Bracket To Wall; hardware package is provided with heater.; Attaching to wall stud method; holes drilled in wall.; Attaching to wall anchor method; Fold wall anchor as shown in Figure 9.; Figure 9 - Folding Anchor
  • Page 13 – Figure 10 - Popping Open Anchor Wings For Thin Walls; Placing Heater On Mounting Bracket; Figure 11 - Mounting Heater Onto Mounting Bracket; Installing Bottom Mounting Screws; Figure 12 - Installing Bottom Mounting Screws
  • Page 14 – Typical Inlet Pipe Diameters
  • Page 15 – Figure 13 - Gas Connection; PRESSURE TESTING GAS SUPPLY PIPING SYSTEM; Test Pressures In Excess Of 1/2 PSIG; opening main gas valve located on or near gas meter.
  • Page 16 – water to gas joints. Bubbles forming show a leak.; Test Pressures Equal To or Less Than 1/2 PSIG; gas valve located on or near gas meter.; PRESSURE TESTING HEATER GAS CONNECTIONS; internal joints for leaks.; Figure 14 - Manual Shutoff Valve; Figure 15 - Checking Gas Joints; CHECKING
  • Page 17 – FOR YOUR SAFETY READ BEFORE LIGHTING; Figure 16 - Control Knob In The OFF Position; LIGHTING INSTRUCTIONS
  • Page 19 – TO TURN OFF GAS TO APPLIANCE; OPERATING; Shutting Off Heater; to the OFF position.; to the PILOT position.; THERMOSTAT CONTROL OPERATION
  • Page 20 – Check pilot flame pattern and burner flame pattern often.; PILOT FLAME PATTERN; Figure 18 - Correct Pilot Flame Pattern; Figure 19 - Incorrect Pilot Flame Pattern; If pilot flame pattern is incorrect, as shown in Figure 19.
  • Page 21 – Figure 20 - Correct Burner Flame Pattern; INSPECTING; CORRECT FLAME PATTERN; BURNER FLAME PATTERN; If burner flame pattern is incorrect, as shown in Figure 21
  • Page 22 – CABINET; Air Passageways; SHOOTING; ing items are listed in; Turn off heater and let cool before cleaning.; REMEDY
  • Page 25 – If you smell gas
  • Page 26 – SPECIFICATIONS; When gas pressure is too low
  • Page 27 – for parts replaced under warranty.; Parts Under Warranty; Parts Not Under Warranty; When calling DESA International, have ready; REPLACEMENT
  • Page 29 – PARTS LIST
  • Page 30 – ACCESSORIES
  • Page 31 – NOTES
  • Page 32 – WARRANTY INFORMATION; KEEP THIS WARRANTY
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BLUE FLAME VENT-FREE NATURAL GAS HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

WARNING: If the information in this manual is
not followed exactly, a fire or explosion may
result causing property damage, personal
injury, or loss of life.

— Do not store or use gasoline or other

flammable vapors and liquids in the vicinity of
this or any other appliance.

— WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.
• Do not touch any electrical switch; do not use

any phone in your building.

• Immediately call your gas supplier from a

neighbor’s phone. Follow the gas supplier’s
instructions.

• If you cannot reach your gas supplier, call the

fire department.

— Installation and service must be performed by

a qualified installer, service agency, or the
gas supplier.

WARNING: This is an
unvented gas-fired heater.
It uses air (oxygen) from
the room in which it is
installed. Provisions for
adequate combustion
must be provided. Refer to
page 5 of this manual

This appliance may be in-
stalled in an aftermarket*
manufactured (mobile) home,
where not prohibited by state
or local codes.

* Aftermarket: Completion of sale,
not for purpose of resale, from the
manufacturer

This appliance is only for use
with the type of gas indicated
on the rating plate. This appli-
ance is not convertible for
use with other gases.

Heater Sizes: 20,000 Btu/Hr Thermostat and

30,000 Btu/Hr Thermostat Model Heaters

®

CGN20T

CGN20TL

CGN30T

CGN30TL

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Summary

Page 2 - CONTENTS; SECTION; SAFETY; WARNINGS; DANGER; Carbon monoxide poisoning may lead to death!; Early signs of carbon monoxide poisoning; Natural Gas; : Natural gas is odorless. An odor-making agent is added to natural

2 103873 CONTENTS SECTION PAGE SAFETY INFORMATION WARNING ICON G 001 WARNINGS IMPORTANT: Read this owner’s manual carefully and completely be-fore trying to assemble, operate, or service this heater. Improper use ofthis heater can cause serious injury or death from burns, fire, explosion,electrical ...

Page 3 - Continued

3 103873 SAFETY INFORMATION Continued WARNING ICON G 001 WARNINGS Continued WARNING: Any change to this heater or its controls can be dangerous. 1. This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases. 2. If you...

Page 4 - dealer where you bought heater.; Safety Device

4 103873 PRODUCT IDENTIFICATION LOCAL CODES Install and use heater with care. Follow all local codes. In the absence of local codes, usethe latest edition of the National Fuel Gas Code ANSI Z223, also known as NFPA 54*. *Available from: American National Standards Institute, Inc. 1430 Broadway New Y...

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