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COZY CDV306D - User Manual

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WARNING: If the information in these instructions is not
followed exactly, a re or explosion may result causing property
damage, personal injury or loss of life.
- Do not store or use gasoline or other ammable vapors
and liquids in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS:
•
Open all windows.
•
Do not try to light any appliance.
•
Do not touch any electrical switch; do not use any phone or
cell phone in your building.
•
Extinguish any open ame.
•
Immediately call your gas supplier from a neighbor’s phone.
Follow the gas supplier’s instructions.
•
If you cannot reach the gas supplier, call the re department.
– Installation and service must be performed by a qualied
installer, service agency or the gas supplier.
14,000 BTU/hr.
DIRECT VENT GRAVITY
WALL FURNACE
WARNING:This Direct-Vent furnace is approved for aftermarket
manufactured home installations (once the manufactured home is
sold, installed and stationary) unless prohibited by local codes.
Not for manufactured home manufacturer (factory) installation. Do
not install any of these furnaces (natural or propane gas)in trailers
or recreational vehicles.
WARNING: This product can expose you to chemicals
including epichlorohydrin which is known to the State of California
to cause cancer and birth defects and/or other reproductive harm.
For information go to www.p65warnings.ca.gov
WARNING: Improper installation, adjustment, alteration,
service or maintenance can cause injury or property damage.
Refer to this manual. For assistance or for additional information
consult a qualied installer or, service agency.
MODEL NUMBERS (natural gas)
CDV142E / CDV222E / CDV302E
MODEL NUMBERS (propane gas)
CDV141E / CDV221E / CDV301E
DISCONTINUED MODEL NUMBERS:
CDV155D / CDV156D / CDV255D
CDV256D / CDV305D / CDV306D
SAVE THIS MANUAL FOR FUTURE REFERENCE.
READ THIS OWNER’S MANUAL CAREFULLY BEFORE YOU
INSTALL YOUR NEW COZY WALL FURNACE.
250 West Laurel Street, Colton CA 92324 • www.cozyheaters.com • 1-888-444-1212
22,000 & 30,000 BTU/hr.
OWNER’S MANUAL
INSTALLATION INSTRUCTIONS
VISITE NUESTRA PÁGINA WEB PARA LA VERSIÓN EN ESPAÑOL DE ESTE MANUAL
https://www.cozyheaters.com/products

Table of Contents

Other manuals for COZY CDV306D

Preview: Installation And Operating Instructions
Installation And Operating Instructions24 pages

Questions and Answers

  • K
    Krista HamiltonAug 14, 2025
    What to do if my COZY CDV306D Furnace won't ignite?
    • K
      Katelyn DyerAug 15, 2025
      If your COZY Furnace fails to ignite, possible causes include the main gas being off (open all manual gas valves), the thermostat not being set high enough (set it to a higher temperature), a clogged burner orifice (clean it, but do not enlarge it), incorrect or defective thermostat wiring (check the wiring, jump across the thermostat terminals at the valve; if the valve opens, re-check the wires and replace the thermostat if needed), or a defective valve (replace the valve).
  • C
    christopher12Aug 18, 2025
    How to check incorrect gas input in COZY Furnace?
    • S
      salinasrickyAug 18, 2025
      Incorrect gas input in your COZY Furnace may be due to the gas input not being checked (re-check the gas input) or a clogged orifice (clean the orifice with a smooth wood toothpick, do not enlarge).
  • D
    Darren TaylorAug 21, 2025
    Why is my COZY Furnace burner not turning off?
    • K
      Kimberly BaileyAug 21, 2025
      If your COZY Furnace burner won’t turn off, it could be due to a defective or damaged thermostat wire or thermostat (remove the wire from the valve terminal; if the valve goes off, replace the wire or thermostat), the thermostat location (follow the installation instructions and check the location), a defective or sticking valve (clean or replace the valve), or excessive gas pressure (contact the utility supplying the gas).
  • D
    Dawn DavisAug 25, 2025
    What to do if my COZY Furnace pilot and main burner go out during normal operation?
    • C
      christina07Aug 25, 2025
      If the pilot and main burner of your COZY Furnace go out during normal operation, it may be due to a weak powerpile or thermocouple (check millivoltage and replace if low), input being too high (check input rate), the cover around the pilot lighter hole not being airtight (tighten wing nuts securing the cover and sight glass; check and replace the gasket if needed), vent tubes not properly installed or sealed (follow the instructions, check both exhaust and air intake tubes and vent cap; be sure all gaskets are in place and properly sealed; use only tubes and vent cap supplied, do not alter vent tubes or cap), or incorrect vent tubes (replace with correct tubes).
  • P
    Patrick CarterAug 28, 2025
    Why is my COZY CDV306D not producing enough heat?
    • H
      Heidi WatersAug 28, 2025
      If your COZY Furnace isn't producing enough heat, the furnace might be undersized (have the heat loss calculated and compare it to the furnace output; your gas company can supply you with this information; if the furnace is undersized, replace it with the correct size unit), the thermostat might be set too low (raise the temperature setting), or the supply pressure might be incorrect (check the supply pressure).
  • A
    Adam GeorgeAug 31, 2025
    Why is my COZY Furnace flame too large?
    • R
      reedrussellAug 31, 2025
      If the flame in your COZY Furnace is too large, it could be due to a defective operator section of the valve (replace the valve), a burner orifice that is too large (check with the local gas company for the proper orifice size and replace it), or if the furnace is installed above 2,000 ft (see burner orifice section, Page 13).
  • M
    marksanchezSep 3, 2025
    What causes yellow burner flame in COZY CDV306D Furnace?
    • R
      robert78Sep 3, 2025
      A yellow burner flame in your COZY Furnace can be caused by clogged burner ports (remove the main burner and check for obstructions in the throat, ports, and orifices; clean, but do not enlarge ports or orifices) or an obstruction around the vent cap (make sure the area around the vent cap is clear, and be sure the vent system is sealed).
  • B
    Brian LopezSep 7, 2025
    Why does my COZY CDV306D have delayed ignition?
    • A
      Angela AllenSep 7, 2025
      Delayed ignition in your COZY Furnace can occur if the pilot flame is too small (adjust the pilot flame), burner ports are clogged at the pilot (clean burner ports, but do not enlarge them), gas pressure is low (check gas supply pressure), or the pilot decreases in size when the main burners come on (the supply piping is too small; consult the local gas company or a competent installer).
  • S
    Sean CochranSep 10, 2025
    What causes too much heat from COZY Furnace?
    • B
      Brenda NicholsonSep 12, 2025
      If your COZY Furnace is producing too much heat, it might be because the thermostat is set too high (lower the temperature setting) or the combination control valve is stuck open (replace the combination control valve).

Summary

Product Identification and Warnings

Product Name and Model Numbers

Critical Safety Warnings

Presents essential warnings regarding installation and operation hazards.

Warranty Information

Warranty Coverage and Limitations

Outlines the one-year and extended warranty coverage, limitations, and exclusions.

Safety Rules and Precautions

General Safety Rules and Warnings

Covers crucial safety rules for furnace installation and operation.

Installation Procedures

Installation Overview and Requirements

Venting and Gas Supply Setup

Covers vent opening, gas supply holes, and gas piping requirements.

Furnace and Vent Cap Mounting

Guides on mounting the furnace body and installing the vent cap.

Thermostat Installation

Cabinet and Gas System Connections

Gas Piping and Leak Testing

Details gas piping layout, conversion kits, and leak testing procedures.

Operation and Maintenance

Furnace Operation Sequence

Pilot Lighting and Gas Safety

Provides instructions for lighting the pilot and safety procedures for gas leaks.

General Operating Instructions

Start-Up and Burner Performance Checks

Furnace Care and Cleaning

Troubleshooting and Service Information

Troubleshooting Furnace Issues

Addresses common furnace issues like pilot problems, burner faults, and operational failures.

Blower and Noise Troubleshooting

COZY CDV306D Specifications

General IconGeneral
BTU60, 000
Efficiency80% AFUE
Weight120 lbs
Fuel TypeNatural Gas
Ignition TypeElectronic

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