COZY DVCF40 User manual
1018028-BPage 1
DIRECT VENT
COUNTERFLOW
WALL FURNACE
Installation and Operating Instructions
Cozy Heating Systems, LLC | cozyheaters.com | 888-444-1212 | 250 West Laurel Street | Colton, CA 92324
- The coating selected to provide longer life to the heat exchanger . Please provide adequate
ventilation if this occurs.
DO NOT attempt any of
NATURAL GAS - DVCF403C-H, DVCF553C-H, DVCF407C-H, DVCF557C-H
PROPANE GAS - DVCF404C-H, DVCF554C-H, DVCF408C-H, DVCF558C-H
DVCF55
DVCF40
WARNING: Operation of this furnace without the properly installed, furnished vent system and vent cap could result in Carbon
Monoxide (CO) poisoning and possible death. For your safety, this furnace and the vent system should be inspected at least
annually by a qualified service technician.
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
!
WARNING:
,
alteration, service or maintenance can cause
for proper installation. For assistance or for
service agency or the gas
supplier.
!
!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
• 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 re
department.
— Installation and service must be performed by a qualied
installer, service agency or the gas supplier.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
1018028-B Page 2
CONTENTS
Before Installation
Standards ........................................... 2
..................................... 3
Introduction ........................................ 3
Venting ............................................... 4
Safety ............................................. 3 -4
Clearances ..................................... 5 -
Locations ............................................ 7
Installation
...................... 7 -8
Locate Vent Opening .......................... 8
Gas Connection .................................. 8
Thermostat Installation ....................... 8
Lighting Instructions ...................... 9 -10
Maintenance
Maintenance Instructions .................. 11
................................ 11
................................ 12
............ 12
Wiring Diagrams ......................... 12 -13
Kits:
• 14-PEK Extension Kit ........................ 14
• 31300-A Cabinet Trim Kit ................. 15
•
Side Discharge Kits ..........................
Troubleshooting Charts ............... 17 -19
Installations In The State Of
Massachusetts....................................18
Parts
DVCF Part List ............................ 20 -23
Warranty ............................................. 24
The State of Massachusetts requires that installation
and service of a gas appliance be performed by a
plumber or gas tter licensed in the Commonwealth of
Massachusetts. See page 18.
These installation instructions are a general guide and do not
supersede applicable local codes and ordinances. Before planning
edition of National Fuel Gas Code, ANSI.Z223.1, or CAN1-B149).
the latest edition of National Electrical Code ANSI / NFPA 70, or
Canadian Electrical Code CSA-C22.1.
All of the ANSI and NFPA standards referred to in these installation
Installer must leave these instructions with the consumer, have
them complete, and return the warranty card.
READ CAREFULLY BEFORE INSTALLING UNIT
NFPA Standards:
NATIONAL FIRE PROTECTION
ASSOCIATION
1 Batterymarch Park
ANSI & Canadian Standards:
CSA GROUP
1018028-BPage 3
SPECIFICATIONS & DIMENSIONS
MODEL NUMBERS
DVCF403C-H DVCF407C-H
DVCF553C-H
DVCF557C-H
DVCF404C-H
DVCF408C-H
DVCF554C-H
DVCF558C-H
Gas Type Natural Propane
Depth 11 - 3/4” 11 - 3/4” 11 - 3/4” 11 - 3/4”
Gas Inlet 1/2” 1/2” 1/2” 1/2”
CFM 320 440 320 440
Type Control 24 Volt 24 Volt 24 Volt 24 Volt
Approx. Shipping Weight 130 lbs 144 lbs 130 lbs 144 lbs
Amps 1.95 2.2 3.05 3.3 1.95 2.25 3.05 3.35
Intermittent Ignition (IID) - IID - IID - IID - IID
Z223.1/NFPA 54 or the Natural Gas and Propane Installation
Code, CSA-B149.1.
National Fire
Protection Association; 1 Batterymarch Park; Quincy, MA,
In Canada, see the current CAN1-B149 installation
code, available from the CSA Group; 178 Rexdale Boulevard;
Toronto, Ontario; Canada M9W 1R3.
In Canada, see the current CSA C22.2 Canadian Electrical Code,
4. Do not install this furnace in a recreational vehicle or trailer.
5. Do not operate this furnace unless it is connected to the
to extend vent pipes. 12 inches is maximum length.
to cool.
8.
9.
10. Children and adults should be alerted to the hazard of high
burns or clothing ignition.
11.
12.
the furnace.
13.
INTRODUCTION
SAFETY
1018028-B Page 4
SAFETY - Continued
VENTING
1) Seal any unused openings in the venting system.
2) Inspect the venting system for proper size and horizontal
pitch, as required in the National Fuel Gas Code, ANSI
Z223.1/NFPA 54 or the Natural Gas and Propane Installation
Code, CSA B149.1 and these instructions. Determine that
there is no blockage or restriction, leakage, corrosion and
connected to the venting system are located and other
spaces of the building.
5) Turn on clothes dryers and any appliance not connected
to the venting system. Turn on any exhaust fans, such as
range hoods and bathroom exhausts, so they are operating
at maximum speed. Do not operate a summer exhaust fan.
appliance is operating continuously.
7) Test for spillage from draft hood equipped appliances at
the draft hood relief opening after 5 minutes of main burner
8) If improper venting is observed during any of the above
tests, the venting system must be corrected in accordance
and/or Natural Gas and Propane Installation Code, CSA
B149.1.
9) After it has been determined that each appliance
appliance to their previous conditions of use.
!WARNING: CARBON MONOXIDE POISONING HAZARD
Failure to follow the steps outlined below for each appliance connected to the venting system being placed into
operation could result in carbon monoxide poisoning or death.
The following steps shall be followed for each appliance connected to the venting system being placed into operation,
while all other appliances connected to the venting system are not in operation:
technician. The furnace should be inspected before use and
at least annually by a professional service technician. More
frequent cleaning may be required due to excessive lint from
carpeting, bedding material, etc. It is imperative that control
the furnace be kept clean.
clearances for servicing and proper operation. (See gure 1 on
page 5).
to be heated for optimal heat distribution.
is installed directly on carpeting, tile or any combustible
. If a
side register kit is to be installed, see Page 16.
19. Side discharge kit boots must not exceed 10 inches.
20.
opened during shipping.
1018028-BPage 5
CLEARANCES
E
D
B
FIXED
CLOSED FIXED
CLOSED
OPERABLE
C
H
B
B
B
B
F
B
A
I
M
K
OPERABLE
Clearance in
installation codes &
requirements of the
gas supplier
AClearance above grade, veranda, porch, deck, or balcony
E
C
GClearance to inside corner
IClearance to service regulator vent outlet
B
FClearance to outside corner
JClearance to nonmechanical air supply inlet to building or
the combustion air inlet to any other appliance.
K Clearance to a mechanical air supply inlet
HClearance to each side of center line extended above
meter/regulator assembly
MClearance under veranda, porch, deck, or balcony
D
from the center line of the terminal
L
located on public property
12 Inches (30 cm)
12 Inches (30 cm)
12 Inches (30 cm)
3 Feet (91 cm)
12 Inches (30 cm)
12 Inches (30 cm)
12 Inches (30 cm)
3 Feet (91 cm) within a
height 15 Feet (4.5m) above the
meter / regulator assembly
12 Inches (30 cm)
permitted only if veranda, porch,
deck, or balcony is fully open on a
minimum of two sides.
7 Feet (2.13m) A vent shall not
terminate directly above a sidewalk
or paved driveway that is located
between two single family dwellings
and serves both dwellings.
12 Inches (30 cm)
9” (23 cm)
12 Inches (30 cm)
9” (23 cm) 12” (30 cm)
12” (30 cm)
12 Inches (30 cm)
9” (23 cm) 12” (30 cm)
10 Feet (3 m) horizontally
Clearance in accordance
requirements of the gas supplier
REFERENCE LETTER TO DRAWING
CANADIAN
INSTALLATIONS* U.S. INSTALLATIONS**
DVCF40 DVCF55
G
A
Inside
Corner
Detail
*In accordance with the current CSA-B149.1
Natural Gas and Propane Installation Code
**In aaccordance with the current ANSI
Z223.1 / NFPA 54 National Fuel Gas Code
= Air Supply Inlet
= Vent Terminal
not permitted
1018028-B
CLEARANCES - Continued
1. MINIMUM CLEARANCES
• Side Wall: Min. Clearance = 4”
(See Fig. 1) NOTE: The unit may be recessed and rest directly
against side studs and the inside surface of the rear wall.
• Ceiling: Min. Clearance = 4”
(See Fig. 1)
• Floor: Min. Clearance = 0”
(See Fig. 1)
• From the Side of the Vent Cap to Any Protruding
Obstructions or Corners: Min. Clearance = 12”
(See Fig. 2b)
• From any Window to the Side of the Vent Cap
DVCF553C, 554C, 557C and 558C
FIG. 2-B
12”
Min.
12”
Min.
24” Minimum
12” Minimum
DVCF403C, 404C, 407C and 408C
FIG. 2-A
9”
Min.
12”
Min.
24” Minimum
12” Minimum
2. RESIDENTIAL GARAGE INSTALLATION:
Gas utilization equipment in residential garages shall be
installed so that all burners and burner ignition devices are
to damage by a moving vehicle. Use care in selecting a good
• DO NOT
be directed onto a nearby parked vehicle.
• Paint may discolor or rubber
may harden and crack.
• DO NOT
onto open or closed containers of paint, gasoline or
DVCF403, 404,
407, & 408C
DVCF553, 554,
557 & 558C
Min. Clearance = 9”
(See Figure 2)
Min. Clearance = 12”
(See Figure 2b)
• From any Overhanging Projection to Top of Vent Cap
Min. Clearance = 24”
(See Figure 2)
CEILING
4” Minimum
4” Minimum
SIDE
WALL
FLOOR 0”
FIG. 1
1018028-BPage 7
FIG. 5
LOCATIONS
cause pilot outage.
possible in the area to be heated.
10” maximum. For proper combustion, make sure unit is level front
to back and side-to-side.
the furnace could be isolated from the space to be heated by closing
a door.
(See Figure 2a)
installation of the furnace or vent tubes.
7. Be sure to maintain adequate accessibility clearances for servicing
and proper operation.
8. If the furnace is installed in a basement, a 12” clearance must be
INSTALLATION
ELECTRICAL ROUGH-IN
on the left side terminating in a receptacle box (not provided). Consult
Dimensions).
ROUGH-IN GAS SUPPLY
Install a 1/2 inch diameter gas supply line. The gas line can enter the
cabinet through the right side or bottom (See Figure 3). The gas line
drip leg and provide a 1/8” N.P.T. plugged tapping, accessible for test
gauge connection, immediately upstream of the gas supply connection
to the furnace (See Figure 4).
the gas supply piping system during any pressure testing of that system
at test pressures in excess of ½ psig (3.5kPa). The furnace must be
isolated from the gas supply piping system by closing its individual
piping system at test pressures equal to or less than ½ psig (3.5kPa).
2-5/8”
3-1/2”
1-1/2” OA
FIG. 3
MANUAL CUT-OFF VALVE
1/8” NPT
GAS
SUPPLY
LINE
FIG. 4
WALL
STUDS
DVCF40 - 59”
DVCF55 - 68-1/2”
FINISHED
FLOOR
9-1/4
DIA.
1018028-B Page 8
INSTALLATION
LOCATE VENT OPENING
After the location of the heater has been determined, the opening
for the vent pipe should be cut. If the heater is to be recessed, cut
for a 40,000 BTU model is 78-5/8”, for the 55,000 models the cut out
NOTE: This dimension may be increased to allow
more room for installation and making the wiring connection, then
renished.
pass through. The center of opening for the 40,000 BTU furnace is
See
Figure 5, on Page 6.
If the heater is to be surfaced mounted, cut out 9-1/4” opening
INSTALLING THE FURNACE
the exhaust or air intake tubes, this could cause an imbalance in the
heater resulting in poor performance and pilot outage (See Figure 6).
(see Figure 6).
GAS CONNECTION
must be run. Be sure to disconnect the gas supply line from the
appliance valve before pressure testing. The manifold pressure is
THERMOSTAT INSTALLATION
OPERATION
for heat the gas valve does not snap-open to full manifold pressure,
ignition.
INLET AIR TUBE “A” – Measuring from gasketed
surface, mark and cut pipe same as dimension “X”.
VENT EXHAUST TUBE “B” – Measuring from
gasketed surface, mark and cut pipe 1-3/4” greater
Fasten vent exhaust tube “B” to heat exchanger collar and Inlet Air
provided. Be sure gaskets are in place and not damaged. Anytime
the vent pipes are removed check and replace gaskets (if necessary).
Failure to replace missing or damaged gaskets may expose
Secure furnace in place using 2 holes provided in bottom of casing.
NOTE: Make sure both tubes are centered in cut out. Slide the vent
cap onto the pipes extending from the back of the furnace. A rotating
or twisting motion will ease this installation. Secure vent cap and
caulking provided.
NOTE: Some framing may be necessary to provide a at surface
against the vent cap spacer plate and to prevent rain from entering
the wall opening.
Vent
Cap Vent Cap
Spacer Plate
WALL
“
X
”
OUTSIDE INSIDE
A
C
B
Heat
Exchange
Collar
1018028-BPage 9
A.
lighted by hand. When lighting the pilot,
B. BEFORE LIGHTING smell all around the
appliance area for gas. Be sure to smell next
WHAT TO DO IF YOU SMELL GAS:
• DO NOT try to light any appliance.
• DO NOT
• DO NOT use any phone in your building.
• Immediately call your gas supplier from
FOR YOUR SAFETY READ BEFORE LIGHTING
MODELS: DVCF403C-H / DVCF404C-H / DVCF553C-H / DVCF554C-H
• If you cannot reach your gas supplier, call
C. Use only your hand to push in or turn the gas
control knob. Never use tools. If the knob
Force or attempted repair may result in a
D. Do not use this appliance if any part has
appliance and to replace any part of the
6. Wait five (5) minutes to clear out any gas. Then smell
for gas, including near the floor. If you smell gas,
STOP!
7. Open sight glass cover.
8. Locate red piezo ignitor button on side of gas control.
tube from gas control).
9. to
“PILOT”.
LIGHTING INSTRUCTIONS
WARNING:
If you do not
follow these
instructions
exactly, a re
or explosion
may result
causing
property
damage,
personal
injury or loss
of life.
LIGHTING INSTRUCTIONS
TURNING OFF GAS TO APPLIANCE
1. STOP!
2.
3.
4.
5.
to “OFF”.
1.
2.
is to be performed.
3.
4.
to “OFF”. Do not force.
5.
10. Push in pilot control knob and hold in. Immediately
begin a series of pushing and releasing the red
the sight glass. Continue to spark until pilot is lit.
Continue to hold the pilot control knob in for about
remain lit. If pilot goes out, repeat steps 4 thru 9.
- If knob does not pop up when released, STOP and
immediately call your service technician or gas supplier.
- If the pilot will not stay lit after several tries, turn the gas
control knob to “OFF” and call your service technician
or gas supplier.
11. Close sight glass cover.
12. to “ON.”
13.
14. Turn on all electric to the appliance.
15. Set thermostat to desired setting.
NOTE:
Knob cannot
be turned from
“PILOT” to “OFF”
unless knob is
pushed in slightly.
Do not force.
Gas Control Knob
Pilot Control Knob
1018028-B Page 10
A.
Do not try to light the pilot by hand.
B. BEFORE OPERATING, smell all around the
appliance area for gas. Be sure to smell next
WHAT TO DO IF YOU SMELL GAS:
• DO NOT try to light any appliance.
• DO NOT
• DO NOT use any phone in your building.
• Immediately call your gas supplier from a
instructions.
FOR YOUR SAFETY READ BEFORE LIGHTING
MODELS: DVCF407C-H / DVCF408C-H / DVCF557C-H / DVCF558C-H
• If you cannot reach your gas supplier, call
C. Use only your hand to push in or turn the gas
explosion.
D. Do not use this appliance if any part has been
service technician to inspect the appliance
and to replace any part of the control system
7.
If you smell gas, STOP!
LIGHTING INSTRUCTIONS
WARNING:
If you do not
follow these
instructions
exactly, a re
or explosion
may result
causing
property
damage,
personal
injury or loss
of life.
LIGHTING INSTRUCTIONS
TURNING OFF GAS TO APPLIANCE
1. STOP!
2.
3.
4.
automatically lights the pilot. DO NOT try to light the pilot
by hand.
5.
6.
to “OFF”.
1.
2.
be performed.
3.
4.
to “OFF”. Do not force.
5.
9.
10.
11. Set thermostat to desired setting.
12.
service technician or gas supplier.
8. to “ON”.
NOTE:
Knob cannot be
turned to “OFF”
unless knob is
pushed in slightly.
Do not force.
Gas Control Knob
Gas Control Knob
1018028-BPage 11
FIG. 9
MAINTENANCE
PILOT ADJUSTMENT
1.
the valve.
2.
(pilot generator)(see
Figure 8).
operating at inlet line pressure (Max.
7” w.c. for Natural Gas and 11” w.c. for
Propane).
MANUAL RESET SWITCH
For your safety this furnace is equipped
before unsafe temperatures are reached.
manually reset. If outages persist, call a
TO DECREASE
THE PILOT FLAME
(Approximately six full turns to bottom of pilot
light channel)
For proper and safe operation, keep furnace and furnace area clean. At regular intervals turn
the vent system, pilot and burner operation prior to use each year.
(See Figure 7).
Examine the venting system as a routine part of the safety performance check on an
annual basis.
OIL
TUBE
FIG. 7
FIG. 8-A Standing Pilot
Pilot flame should envelop 3/8 to
1/2 inch of the tip of sensor.
3/8”-1/2”
FIG. 8-D
Pilot Adjustment Screw
IID Pilot
FIG. 8-C
Pilot Adjustment Screw
Standing Pilot
1-1/2” 3/4”
WARNING: This is a gas-red appliance. Keep the area clear of gasoline and other ammable vapors
and liquids. All combustible material must be kept clear of this area to avoid re or explosion.
!
FIG. 8-B IID Pilot
Pilot flame should envelop 3/8 to
1/2 inch of the tip of sensor.
3/8”
to
1/2”
1018028-B Page 12
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper & dangerous operation. Verify
proper operation after servicing.
!
MAINTENANCE
TERMINAL BLOCK WIRING DIAGRAMS
TO REMOVE MAIN BURNER
FOR INSPECTION & CLEANING
1.
the furnace to cool.
2.
3.
4. Disconnect gas supply to valve.
5.
6.
complete burner, gas valve assembly.
7. After inspecting and cleaning, place burner
assembly back into burner box and tighten
NOTE: Be sure door gasket is not damaged
and will eect a proper seal or pilot outage
will occur.
8.
9. Connect gas supply back to valve.
10. Turn on electric to furnace.
11.
It is recommended that the furnace and all
components be inspected at least annually by a
the burner, pilot, heat exchanger, and vent system.
air is not obstructed.
IMPORTANT: Keep burner & control compartment
clean. Vacuum control compartment at the start of
the heating season and as often as needed.
PROPER BURNER FLAME
a lighter blue outer mantle rising above the burner (See Figure 9 on page 11).
NOTE: It
is advised that the burner ames be checked at least twice during the heating
season for any changes in burner ame characteristics.
The appliance area must be kept clear and free from combustible materials,
only for altitudes 0-2,000 feet. Heaters installed above 2,000 feet must be derated
Model Number
0 to
NATURAL GAS
FIG
DVCF403C .............
DVCF407C .............
DVCF553C ...........
DVCF557C ...........
DVCF404C .............49 50 51 52 52
DVCF408C .............49 50 51 52 52
DVCF554C .............44 45 47 48 49
DVCF558C .............44 45 47 48 49
PROPANE GAS
ORDER KIT #49840 2287-1 High Altitude Kit
DVCF403, 404, 407 & 408 (C-H)
91122
Motor (White)
Motor (Green) Motor (Black)
Transformer (Black)
Transformer (Black)
Limit
(Blue)
Terminal
Board
Ground
(Green)
Cord
(Green)
Fan
(Black)
DVCF553, 554, 557 & 558 (C-H)
91123
Motor (White)
Motor (Green) Motor (Black)
Transformer (Black)
Transformer (Black)
Limit
(Blue)
Terminal
Board Ground
(Green)
(Green)
Selector
(Black)
1018028-BPage 13
WIRING SCHEMATICS
Standing Pilot Models IID Models
PILOT
PICTORIAL SCHEMATIC
Models Amps
DVCF407C-H .............2.20
DVCF408C-H .............2.25
DVCF557C-H .............3.30
DVCF558C-H .............3.35
See page 22
for a larger
schematic of
the IID.
1018028-B Page 14
14-PEK: 14’ PLUG EXTENSION KIT
Units with Terminal Board
1.
2.
3.
4.
5.
6.
heater.
7.
instructions.
8.
9.
10.
11. Snap 90 degree outside corner (Ref. 1) onto 3 foot section (Ref. 2) plastic
12. (Ref. 3) and
remove blue backing and apply to side of heater, butting up against bottom
of other section.
13. Cut 14-inch long bottom section to required length (see chart), insert
14.
15.
BOTTOM SECTION (4)
90 DEGREE
OUTSIDE
CORNER
(1)
3 F T.
SECTION
(2)
3 F T.
SECTION
(3)
FIG. 11
NOTE: Lengths terminate approximately 2 inches above oor.
DVCF55 14 Inches NOTE: Lengths terminate approximately 2 inches above oor.
MODEL NO. LENGTH OF BOTTOM SECTION (Ref. 4) PLASTIC RACEWAY
CAUTION: These kits must be installed by a qualified installer or service technician.
1018028-BPage 15
31300-A: CABINET TRIM KIT
FIG. 12-A
Units with Terminal Board
1.
2.
the side of the furnace (and that the ange is ush with the bottom of the
top trim piece).
3.
as in step 2.
48” Long Side Flange ............................Qty. 4 31310
15-1/2” Wide Top Flange ..........................Qty. 1 31320
.........................Qty. 10 50134
TOP
FLANGE
LONG
SIDE
FLANGE
FIG. 12-B
Wall
Trim Kit
Side
Flange
Wall
Stud
Vent
Pipe
Trim
Kit Top
Flange
CAUTION: These kits must be installed by a qualified installer or service technician.
PART DESCRIPTION PART NO.QUANTITY
1018028-B
FIG. 11
ROUGH-INS FOR
SIDE DISCHARGE KITS
NOTE: When side discharge Kit No. 30SRB is being used,
furnace should be set exactly 4” from side wall.
306SR-A
Side Discharge on Casing
1. Cut out and remove embossed area on
casing side.
2.
3. Place 1-1/2” boot from kit through
knockout on inner liner.
4.
5.
6.
7. Place grille into position, drill holes into
306SR & 30SRB: SIDE DISCHARGE KITS (Optional Accessories)
30SRB-A
Side Discharge with Extension Boot
1.
2. (Optional).
3. Cut out and remove embossed section on casing side.
4.
5. Put heater into position.
6.
7. Place boot trim into position, slide INNER BOOT
room and attach to inner liner. Slide OUTER BOOT
8.
NOTE:
Maximum boot
length is 10”
Back Wall
Side Wall
14-3/8”
Plaster
Ground
CAUTION: These kits must be installed by a qualified installer or service technician.
1018028-BPage 17
SYMPTOM POSSIBLE CAUSES
TROUBLESHOOTING CHART ) - MAIN BURNER
1. Gas leak.
2. Thermostat not set high enough to
call for heat.
defective.
Gas Odor
Failure
to Ignite
CORRECTIVE ACTION
Flame Too
Large 1. Defective operator section of valve.
3. If installed above 2,000 feet.
Fig. 10 on page 12).
1. Clogged burner ports.
2. Obstructions around vent cap.
Yellow Burner
Flame
2. Make sure area around vent cap is clear, be sure vent system is sealed.
1. See page 1.
2. Burner ports clogged at pilot.
burners come on.
Delayed
Ignition
2. Clean burner ports (do not enlarge).
3. Check gas supply pressure.
4. Supply piping is too small. Consult local gas company or competent installer.
1. Open all manual gas valves.
2. Set thermostat to higher temperature.
replace thermostat.
1. Defective or damaged
2. Thermostat location.
3. Defective or sticking valve.
4. Excessive gas pressure.
Burner Won’t
Turn O
or thermostat.
4. Contact utility supplying gas.
1. Weak thermocouple.
2. Input too high.
3. Cover around pilot lighter
hole not air tight.
4. Vent tubes not properly
installed or sealed.
Pilot and
Main Burner
go out During
Normal
Operation
2. Check input rate.
gaskets are in place and properly sealed. Use only tubes and vent cap supplied. Do not
alter vent tubes or cap.
1. Gas input not checked.
1. Thermostat set too high.
2. Combination control valve stuck
open.
Incorrect
Gas Input
Too Much
Heat
Please follow the following corrective actions in order.
1. Furnace undersized.
3. Incorrect supply pressure.
Not Enough
Heat
3. Check supply pressure.
1018028-B Page 18
TROUBLESHOOTING CHART ) - MAIN BURNER
Please follow the following corrective actions in order.
SYMPTOM POSSIBLE CAUSES
not engaged.
Pilot Won’t
Light
CORRECTIVE ACTION
Burner Won’t
Turn On 1. Gas valve not turned on.
2. No voltage to valve.
3. Defective thermostat.
4. No 115 V. Line voltage.
5. Gas valve defective.
1. Turn gas valve to “on” position.
2. Check for 24 Volts to valve from transformer.
4. Provide line voltage.
1. Air in line.
2. Defective thermocouple
Pilot Won’t
Light, or Won’t
Stay Lit
1. Bleed line.
b. Turn valve to “on” position.
c. Check for pilot restriction.
I.I.D. Pilot
Standing Pilot
All installations in the State of Massachusetts must use
heaters.
For direct-vent appliances, mechanical-vent heating
bottom of the vent terminal and the air intake is installed
detector and alarm shall be placed in the living area
outside the bedroom(s). The carbon monoxide detector
2. A carbon monoxide detector shall be located in the
room that houses the appliance or equipment
and shall:
appliance or equipment such that only one service
monoxide detector.
720 (2005 Edition); and
d. Have been approved and listed by a Nationally
A CARBON MONOXIDE DETECTOR SHALL:
a. Be located in the room that houses the appliance
or equipment;
3. A product-approved vent terminal must be used, and if
applicable, a product-approved air intake must be
equipment at the completion of the installation.
at the exterior of the building, four feet directly above
the location of vent terminal. The plate shall be of
INSTALLATIONS IN THE STATE OF MASSACHUSETTS
1018028-BPage 19
TROUBLESHOOTING CHART ) - IID
OFF No Call for Heat Not Applicable None
Normal Operation
Heartbeat Not Applicable None
Flame failed
during run
3
If system fails to light on next trial ignition, check gas
Flame sense
leakage to ground
7
fault corrects, control resumes normal
operation after a one minute delay.
rod ceramic for cracks, damage or tracking.
Delay - On every
third retry on the
same “Call for Heat”
6 + 2
delay completed.
ground connection.
Flame sensed out
of sequence - longer
than 10 seconds
6 + 4
sensed and then goes to soft lockout.
Flash code continues. Control auto resets
from soft lockout after one hour.
repeats, replace control.
voltage supply -
8
fault corrects, control resumes normal
operation after a one minute delay.
Check transformer and AC lines for proper input voltage
transformer.
run on the same
“Call for Heat”
6 + 3
for ignition.
Startup - Flame
Sense Calibration
Flash Fast Not Applicable None
Pilot ame not
detected during
trial for ignition
2
delay completed.
If system fails to light on next trial for ignition check
connection.
Flame sensed
out of sequence
4
seconds, control returns to normal
remains longer than 10 seconds, control
repeats, replace control.
Soft lockout due
to error detected
during self check
sequences
ON Control auto resets from soft lockout after
one hour.
the control.
GREEN LED FLASH
CODE (XxY)ª INDICATES NEXT SYSTEM ACTION RECOMMENDED SERVICE ACTION
Please follow the following corrective actions in order.
1018028-B Page 20
4
1C
6
4
6
DVCF55
DVCF40
26
3
16
17 11 18
78
38
236
61
50
1D
35
24 1E
1F
1A
39
1G
52
10
9
44
1C
19
20
Specications subject to change without notice.
DIRECT VENT COUNTERFLOW WALL FURNACE PARTS LIST
Natural Gas: DVCF403C-H, DVCF553C-H, DVCF407C-H, DVCF557C-H
Propane Gas: DVCF404C-H, DVCF554C-H, DVCF408C-H, DVCF558C-H
ATTN: CONTRACTORS AND
QUALIFIED SERVICE TECHNICIANS:
We only sell parts through our
purchased your Cozy heater.
HOW TO PROPERLY ORDER PARTS:
In addition to the part description and numbers,
please be prepared to provide:
- Model Number
- Serial Number
- Type of Gas Used
This information can be found on the rating plate that is attached
to the heater.
VENT
ASSEMBLY
40
47
45
46
48
37 49
This manual suits for next models
9
Table of contents
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