Langley Empire Furnace DV 20E 5 User Manual

INSTALLATION INSTRUCTIONS  
AND  
OWNER'S MANUAL  
FAN TYPE  
DIRECT VENT  
WALL FURNACE  
For Installation in  
Manufactured (Mobile Home),  
Modular or Residential Homes  
MODELS  
DV-20E-5  
Patent # 5.664.555  
DV-40E-5  
Installer: Leave these instructions with the con-  
sumer.  
Consumer: Retain these instructions for future  
use.  
WARNING: If the information in this manual  
is not followed exactly, a fire or explosion may  
resultcausingpropertydamage, personalinjury  
or loss of life.  
EFFECTIVE DATE  
JUNE 2006  
Donotstoreorusegasolineorotherammable  
vapors and liquids in the vicinity of this or  
any other appliance.  
This appliance may be installed as an OEM  
installationinamanufacturedhome(USAonly)  
or mobile home and must be installed in ac-  
cordancewiththemanufacturer'sinstructions  
andtheManufacturedHomeConstructionand  
SafetyStandard,Title24CFR,Part3280,inthe  
United States, or the Mobile Home Standard,  
CAN/CSA Z240 MH Series, in Canada.  
— 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.  
This appliance is only for use with the type(s)  
of gas indicated on the rating plate. A conver-  
sion kit is supplied with the appliance.  
If you cannot reach your gas supplier,  
call the fire department.  
WARNING: If not installed, operated and main-  
tained in accordance with the manufacturer's  
instructions, this product could expose you to  
substances in fuel or from fuel combustion which  
can cause death or serious illness.  
— Installation and service must be performed  
byaqualifiedinstaller,serviceagencyorthe  
gas supplier.  
19562-1-0606  
Page 1  
 
IMPORTANT SAFETY INFORMATION  
THIS IS A HEATING APPLIANCE  
DO NOT OPERATE THIS APPLIANCE WITHOUT FRONT PANEL INSTALLED.  
Due to high temperatures the appliance should be located  
out of traffic and away from furniture and draperies.  
SERVICE PERSON. The appliance should be inspected  
before use and at least annually by a qualified service  
person. More frequent cleaning may be required due to  
excessive lint from carpeting, bedding materials, etc. It  
is imperative that control compartments, burners and  
circulating air passageways of the appliance be kept  
clean.  
Children and adults should be alerted to the hazards of  
high surface temperatures and should stay away to avoid  
burns or clothing ignition.  
Young children should be carefully supervised when they  
are in the same room as the appliance.  
DO NOT put anything around the furnace that will  
obstruct the flow of combustion and ventilation air.  
Clothingorotherammablematerialshouldnotbeplaced  
on or near the appliance.  
DO keep the appliance area clear and free from  
combustible material, gasoline and other flammable  
vapors and liquids.  
Any safety screen or guard removed for servicing an  
appliance must be replaced prior to operating the  
appliance.  
DO examine venting system periodically and replace  
damaged parts.  
Keep burner and control compartment clean.  
Vent cap hot while furnace is in operation.  
DO make a periodic visual check of burner. Clean and  
replace damaged parts.  
For manufactured home (USA only) or mobile home or  
residential installation convertible for use with natural  
gasandliquefiedpetroleumgaseswhenprovisionismade  
for the simple conversion from one gas to the other.  
DO NOTuse this heaterif any part has been underwater.  
Immediately call a qualified service technician to inspect  
the heater and to replace any part of the control system  
and any gas control which has been under water.  
Installation and repair should be done by a QUALIFIED  
19562-1-0606  
Page 3  
 
SAFETY INFORMTION FOR USERS OF LP-GAS  
Propane (LP-Gas) is a flammable gas which can cause fires and  
of your household. Someday when there may not be a minute to  
lose, everyone's safety will depend on knowing exactly what to  
do. If, after reading the following information, you feel you still  
need more information, please contact your gas supplier.  
explosions. In its natural state, propane is odorless and colorless.  
You may not know all the following safety precautions which can  
protect both you and your family from an accident. Read them  
carefully now, then review them point by point with the members  
LP-GAS WARNING ODOR  
If a gas leak happens, you should be able to smell the gas because of the odorant put in the LP-Gas.  
That's your signal to go into immediate action!  
Donotoperateelectricswitches,lightmatches,useyourphone.  
Do not do anything that could ignite the gas.  
Get everyone out of the building, vehicle, trailer, or area. Do  
that IMMEDIATELY.  
Use your neighbor's phone and call a trained LP-Gas service  
person and the fire department. Even though you may not  
continue to smell gas, do not turn on the gas again. Do not  
re-enter the building, vehicle, trailer, or area.  
Close all gas tank or cylinder supply valves.  
Finally, let the service man and firefighters check for escaped  
gas. Have them air out the area before you return. Properly  
trained LP-Gas service people should repair the leak, then  
check and relight the gas appliance for you.  
LP-Gas is heavier than air and may settle in low areas such as  
basements. When you have reason to suspect a gas leak, keep  
out of basementsand other low areas. Stay out untilrefighters  
declare them to be safe.  
NO ODOR DETECTED - ODOR FADE  
Some people cannot smell well. Some people cannot smell the  
odor of the chemical put into the gas. You must find out if you  
can smell the odorant in propane. Smoking can decrease your  
ability to smell. Being around an odor for a time can affect your  
sensitivity or ability to detect that odor. Sometimes other odors  
in the area mask the gas odor. People may not smell the gas odor  
or their minds are on something else. Thinking about smelling a  
gas odor can make it easier to smell.  
in LP-Gas also are subject to oxidation. This fading can occur if  
there is rust inside the storage tank or in iron gas pipes.  
Theodorantinescapedgascanadsorborabsorbontoorintowalls,  
masonry and other materials and fabrics in a room. That will take  
some of the odorant out of the gas, reducing its odor intensity.  
LP-Gas may stratify in a closed area, and the odor intensity could  
vary at different levels. Since it is heavier than air, there may be  
more odor at lower levels.Always be sensitive to the slightest gas  
odor. If you detect any odor, treat it as a serious leak. Immediately  
go into action as instructed earlier.  
The odorant in LP-gas is colorless, and it can fade under some  
circumstances. For example, if there is an underground leak, the  
movement of the gas through soil can filter the odorant. Odorants  
SOME POINTS TO REMEMBER  
Learn to recognize the odor of LP-gas. Your local LP-Gas  
Dealer can give you a "Scratch and Sniff" pamphlet. Use it to  
find out what the propane odor smells like. If you suspect that  
your LP-Gas has a weak or abnormal odor, call your LP-Gas  
Dealer.  
reinstalled old tanks, if they are filled and allowed to set too  
long before refilling. Cylinders and tanks which have been out  
ofserviceforatimemaydevelopinternalrustwhichwillcause  
odor fade. If such conditions are suspected to exist, a periodic  
sniff test of the gas is advisable. If you have any question about  
the gas odor, call your LP-gas dealer. A periodic sniff test of  
the LP-gas is a good safety measure under any condition.  
Ifyouarenotqualified,donotlightpilotlights,performservice,  
or make adjustments to appliances on the LP-Gas system. If  
you are qualified, consciously think about the odor of LP-Gas  
prior to and while lighting pilot lights or performing service  
or making adjustments.  
If, at any time, you do not smell the LP-Gas odorant and you  
think you should, assume you have a leak. Then take the same  
immediate action recommended above for the occasion when  
you do detect the odorized LP-Gas.  
Sometimes a basement or a closed-up house has a musty smell  
that can cover up the LP-Gas odor. Do not try to light pilot  
lights, perform service, or make adjustments in an area where  
the conditions are such that you may not detect the odor if  
there has been a leak of LP-Gas.  
If you experience a complete "gas out," (the container is under  
no vapor pressure), turn the tank valve off immediately. If the  
container valve is left on, the container may draw in some air  
through openings such as pilot light orifices. If this occurs,  
some new internal rusting could occur. If the valve is left  
open, then treat the container as a new tank. Always be sure  
your container is under vapor pressure by turning it off at the  
container before it goes completely empty or having it refilled  
before it is completely empty.  
Odor fade, due to oxidation by rust or adsorption on walls of  
new cylinders and tanks, is possible. Therefore, people should  
be particularly alert and careful when new tanks or cylinders  
are placed in service. Odor fade can occur in new tanks, or  
Page 4  
19562-1-0606  
 
REQUIREMENTS FOR MASSACHUSETTS  
For all side wall horizontally vented gas fueled equipment  
3. SIGNAGE.Ametalorplasticidentificationplateshall be  
permanently mounted to the exterior of the building at a  
minimum height of eight (8) feet above grade directly in  
line with the exhaust vent terminal for the horizontally  
vented gas fueled heating appliance or equipment. The  
sign shall read, in print size no less than one-half (1/2)  
inchinsize,“GASVENTDIRECTLYBELOW.KEEP  
CLEAR OF ALL OBSTRUCTIONS”.  
installed in every dwelling, building or structure used in  
whole or in part for residential purposes, including those  
owned or operated by the Commonwealth and where the  
side wall exhaust vent termination is less than seven (7) feet  
above finished grade in the area of the venting, including but  
not limited to decks and porches, the following requirements  
shall be satisfied:  
1. INSTALLATIONOFCARBONMONOXIDEDETEC-  
TORS.Atthetimeofinstallationofthesidewallhorizontal  
vented gas fueled equipment, the installing plumber or  
gasfittershallobservethatahardwiredcarbonmonoxide  
detector with an alarm and battery back-up is installed on  
the floor level where the gas equipment is to be installed.  
Inaddition,theinstallingplumberorgasfittershallobserve  
that a battery operated or hard wired carbon monoxide  
detector with an alarm is installed on each additional  
level of the dwelling, building or structure served by  
the side wall horizontal vented gas fueled equipment. It  
shallbetheresponsibilityofthepropertyownertosecure  
the services of qualified licensed professionals for the  
installation of hard wired carbon monoxide detectors  
4. INSPECTION. The state or local gas inspector of the  
side wall horizontally vented gas fueled equipment shall  
not approve the installation unless, upon inspection, the  
inspectorobservescarbonmonoxidedetectorsandsignage  
installed in accordance with the provisions of 248 CMR  
5.08(2)(a) 1 through 4.  
(b) EXEMPTIONS:Thefollowingequipmentisexempt  
from 248 CMR 5.08(2)(a)1 through 4:  
1. The equipment listed in Chapter 10 entitled  
“Equipment Not Required To Be Vented” in the  
most current edition of NFPA 54 as adopted by  
the Board; and  
2. ProductApproved side wall horizontally vented  
gas fueled equipment installed in a room or  
structure separate from the dwelling, building or  
structure used in whole or in part for residential  
purposes.  
a. Inthe event thatthe side wall horizontallyvented gas  
fueled equipment is installed in a crawl space or an  
attic, the hard wired carbon monoxide detector with  
alarm and battery back-up may be installed on the  
next adjacent floor level.  
(c) MANUFACTURER REQUIREMENTS - GAS  
EQUIPMENT VENTING SYSTEM PROVIDED.  
When the manufacturer of Product Approved side  
wall horizontally vented gas equipment provides a  
ventingsystemdesignorventingsystemcomponents  
with the equipment, the instructions provided by the  
manufacturer for installation of the equipment and  
the venting system shall include:  
b. In the event that the requirements of this subdivision  
can not be met at the time of completion of installa-  
tion, the owner shall have a period of thirty (30) days  
to comply with the above requirements; provided,  
however, that during said thirty (30) day period, a  
battery operated carbon monoxide detector with an  
alarm shall be installed.  
1. Detailed instructions for the installation of the  
venting system design or the venting system  
components; and  
2. APPROVED CARBON MONOXIDE DETECTORS.  
Eachcarbonmonoxidedetectorasrequiredinaccordance  
with the above provisions shall comply with NFPA 720  
and be ANSI/UL 2034 listed and IAS certified.  
2. Acompletepartslistfortheventingsystemdesign  
or venting system.  
(e) A copy of all installation instructions for all Product  
Approved side wall horizontally vented gas fueled  
equipment, all venting instructions, all parts lists for  
ventinginstructions,and/orallventingdesigninstruc-  
tions shall remain with the appliance or equipment  
at the completion of the installation.  
19562-1-0606  
Page 5  
 
INTRODUCTION  
Introduction  
to physical damage by a moving vehicle.  
Always consult your local Building Department regarding  
regulations, codes or ordinances which apply to the installation of  
a direct vent wall furnace.  
Qualified Installing Agency  
Installationandreplacementofgaspiping,gasutilizationequipment  
or accessories and repair and servicing of equipment shall be  
performed only by a qualified agency. The term "qualified agency"  
meansanyindividual, firm, corporationorcompanywhicheitherin  
person or through a representative is engaged in and is responsible  
for (a) the installation or replacement of gas piping or (b) the  
connection, installation, repair or servicing of equipment, who is  
experienced in such work, familiar with all precautions required  
and has complied with all the requirements of the authority having  
jurisdiction.  
Instructions to Installer  
1. Installer must leave instruction manual with owner after  
installation.  
2. Installermusthaveownerlloutandmailwarrantycardsupplied  
with furnace.  
3. Installer should show owner how to start and operate furnace  
and thermostat.  
4. Installer must locate unit near a grounded wall receptacle for  
115VAC power and must provide gas supply and vent the unit  
properly for safe operation.  
State of Massachusetts: The installation must be made by  
a licensed plumber or gas fitter in the Commonwealth of  
Massachusetts.  
Warning:  
Any change to this furnace or its control can be dangerous.  
This is a heating appliance and any panel, door or guard  
removed for servicing an appliance must be replaced prior  
to operating the appliance.  
The installation must conform with local codes, or in the absence  
of local codes, the National Fuel Gas Code,ANSI Z223.1/NFPA54  
or Natural Gas and Propane Installation Code, CSA B149.1.  
*Available from the American National Standards Institute, Inc.,  
11 West 42nd St., New York, NY 10036.  
General Information  
ThisseriesisdesigncertifiedinaccordancewithAmericanNational  
Standard/CSA Standard Z21.86 and CSA 2.32 by the Canadian  
Standards Association as a Fan Type Direct Vent Wall Furnace to  
be installed according to these instructions.  
Amanufacturedhome(USAonly)ormobilehomeOEMinstallation  
mustconformwiththeManufacturedHomeConstructionandSafety  
Standard, Title 24 CFR, Part 3280, or, when such a standard is not  
applicable,theStandardforManufacturedHomeInstallations,ANSI  
Z225.1, or Standard for Gas Equipped Recreational Vehicles and  
Mobile Housing, CSA Z240.4.  
Any alteration of the original design, installed other than as  
shownintheseinstructionsorusewithatypeofgasnotshownon  
the rating plate is the responsibility of the person and company  
making the change.  
High Altitudes  
Foraltitudes/elevationsabove2,000feet(610m),inputratingsshould  
be reduced at the rate of 4 percent for each 1,000 feet (305m) above  
sealevel, thismaybeaccomplishedbyreducingmanifoldpressure.  
ThemaximumallowablereductioninmanifoldpressureforNatural  
gas shall be from 3.5" w.c. (.872kPa) to 2.8" w.c. (.697kPa). The  
maximum allowable reduction in manifold pressure for Propane  
(LP) gas shall be from 10.0" w.c. (2.49kPa) to 8.0" w.c. (1.99kPa).  
For Canadian high altitude applications, this appliance is suitable  
for installation at elevations between 0 feet (0m) and 4,500 feet  
(1,372m) without change.  
Important  
AllcorrespondenceshouldrefertocompleteModelNumber, Serial  
Number and type of gas.  
Notice:Duringinitialringofthisunit, oilfromtheheatexchanger  
maybakeoutandsmokemayoccur.Topreventtriggeringofsmoke  
alarms, ventilate the room in which the unit is installed.  
Installation in Residential Garages  
Gas utilization equipment in residential garages shall be installed  
so that all burners and burner ignition devices are located not less  
than 18" (457mm) above the floor.  
Such equipment shall be located, or protected, so it is not subject  
SPECIFICATIONS  
Accessories  
Model  
DV-20E  
DV-40E  
Extended Vent Terminal  
DVT-2  
DVE-1  
Input BTU/HR (KW/H) 20,000 (5.9)  
40,000 (11.7)  
26" (660mm)  
37" (940mm)  
For walls up to 32" (813mm)  
Height  
26" (660mm)  
37" (940mm)  
Intake/Exhaust Extension Kit  
Width  
54" (1371mm) Vent Kit with 2 Elbows  
Depth with Shroud  
Gas Inlet (Pipe)  
15 3/4" (400mm) 15 3/4" (400mm)  
1/2" (13mm) 1/2" (13mm)  
54" (1371mm) Vent Kit (straight)  
for Extended Vent Runs  
DVE-2  
(use with DVE-1)  
Electrical - Unit as a 5' (1.5m) 3 pronged cordset for connec-  
tion to an approved 115 VAC 60HZ maximum  
AMPs - 5A wall receptacle.  
Floor Pad  
DVP-1  
Page 6  
19562-1-0606  
 
GAS SUPPLY  
Amanual main gas cock should be located in the vicinity of the unit.  
Wherenoneexists, orwhereitssizeorlocationisnotadequate, con-  
tact your local authorized installer for installation or relocation.  
Consult the current National Fuel Gas Code, ANSI Z223.1 CAN/  
CGA-B149 (.1 or .2) installation code.  
Recommended Gas Pipe Diameter  
Compounds used on threaded joints of gas piping shall be resistant  
to the action of liquefied petroleum gases. The gas lines must be  
checked for leaks by the installer. This should be done with a soap  
solution watching for bubbles on all exposed connections, and if  
unexposed, a pressure test should be made.  
Pipe Length  
Schedule 40 Pipe  
Inside Diameter  
Tubing, Type L  
Outside Diameter  
Nat.  
1/2”  
L.P.  
Nat.  
1/2”  
L.P.  
0-10 feet  
3/8”  
3/8”  
0-3 meters  
12.7mm 9.5mm 12.7mm 9.5mm  
Never use an exposed flame to check for leaks. Appliance must  
be disconnected from piping at inlet of control valve and pipe  
capped or plugged for pressure test. Never pressure test with  
appliance connected; control valve will sustain damage!  
10-40 feet  
1/2” 1/2” 5/8” 1/2”  
4-12 meters 12.7mm 12.7mm 15.9mm 12.7mm  
40-100 feet 1/2” 1/2” 3/4” 1/2”  
13-30 meters 12.7mm 12.7mm 19mm 12.7mm  
100-150 feet 3/4” 1/2” 7/8” 3/4”  
A gas valve and ground joint union should be installed in the gas  
line upstream of the gas control to aid in servicing. It is required by  
the National Fuel Gas Code that a drip line be installed near the gas  
inlet. This should consist of a vertical length of pipe tee connected  
into the gas line that is capped on the bottom in which condensation  
and foreign particles may collect.  
31-46 meters 19mm 12.7mm 22.2mm 19mm  
Note: Never use plastic pipe. Check to confirm whether your local  
codes allow copper tubing or galvanized.  
Pressure Testing of the Gas Supply System  
Note: Since some municipalities have additional local codes, it is  
always best to consult your local authority and installation code.  
1. To check the inlet pressure to the gas valve, a 1/8" (3mm) N.P.T.  
plugged tapping, accessible for test gauge connection, must be  
placed immediately upstream of the gas supply connection to  
the appliance.  
2. The appliance and its individual shutoff valve must be  
disconnected from the gas supply piping system during any  
pressure testing of that system at test pressures in excess of 1/2  
psig (3.5 kPa).  
3. The appliance must be isolated from the gas supply piping  
systembyclosingitsindividualmanualshutoffvalveduringany  
pressure testing of the gas supply piping system at test pressures  
equal to or less than 1/2 psig (3.5 kPa).  
The use of the following gas connectors is recommended:  
— ANSZ21.24ApplianceConnectorsofCorrugatedMetalTubing  
and Fittings  
— ANS Z21.45 Assembled Flexible Appliance Connectors of  
Other Than All-Metal Construction  
The above connectors may be used if acceptable by the authority  
havingjurisdiction.ThestateofMassachusettsrequiresthataexible  
appliance connector cannot exceed three feet in length.  
Attention! If one of the procedures results in pressures in excess  
of 1/2 psig (14" w.c.) (3.5 kPa) on the fireplace gas valve, it will  
result in a hazardous condition.  
Checking Manifold Pressure  
Both Propane and Natural gas valves have a built-in pressure  
regulator in the gas valve. Natural gas models will have a manifold  
pressure of approximately 3.5" w.c. (.872kPa) at the valve outlet  
with the inlet pressure to the valve from a minimum of 5.0" w.c.  
(1.245kPa) for the purpose of input adjustment to a maximum of  
10.5" w.c. (2.614kPa) Propane gas models will have a manifold  
pressure approximately 10.0" w.c. (2.49kPa) at the valve outlet  
with the inlet pressure to the valve from a minimum of 11.0" w.c.  
(2.739kPa) for the purpose of input adjustment to a maximum of  
13.0" w.c. (3.237kPa).  
A 1/8" (3mm) N.P.T. plugged tapping, accessible for test gauge  
connection, is located on the outlet side of the gas control.  
Figure 1  
Installing a New Main Gas Cock  
Each appliance should have its own manual gas cock.  
19562-1-0606  
Page 7  
 
GAS CONVERSION INSTRUCTIONS  
Warning: Conversion must be done by a qualified service technician. Main burner orifice(s) and new  
gas conversion label are provided in conversion kit attached to manifold pipe.  
CONVERSION INSTRUCTIONS FROM (LP) PROPANE GAS TO NATURAL GAS  
1. Make sure gas supply to furnace is off prior to conversion and disconnect electrical power to unit.  
2. Open brass union located between the gas valve and burner box. Re-  
VINYL CAP  
GAS CONTROL LEVER SHOWN  
IN "OFF" POSITION  
move the 4 mounting screws securing manifold plate to the burner box.  
CONVERTIBLE  
REGULATOR  
RED LP RING  
Remove the top 2 screws holding the burner box top in place and then  
remove the 1 screw holding the end of the manifold pipe in place. Grasp  
union and remove manifold pipe.  
OFF  
3. Remove (1) LPgas main burner orifice marked 55 for DV-20E or (2) LP  
gas main burner orifices marked 55 for DV-40E located in the manifold  
pipe and replace with (1) Natural gas main burner orifice marked 44 for  
DV-20E or (2) Natural gas main burner orifices marked 44 for DV-40E  
supplied in conversion kit.  
TOP VIEW  
BACK END VIEW  
4. Replace manifold pipe being sure to locate orifice(s) in the end of the burner. Secure the manifold and top burner box cover in  
place using the screws earlier removed. Reconnect the brass union.  
5. Remove the vinyl cap and unscrew the gas control convertible regulator and reverse to Natural gas side and screw back into place.  
The red LP ring will be up just under the vinyl cap. Reattach vinyl cap. Refer to figure illustrating the gas valve.  
6. Place LP gas main burner orifice(s) in conversion kit. Attach conversion kit to manifold pipe. Attach new label to unit nameplate  
indicating that the unit was converted to Natural gas.  
7. Turn on gas supply to furnace and check all gas connections for leaks with soap solution, watching for bubbles on all gas connec-  
tions.  
8. Turn on electrical power to unit and turn on furnace to verify proper operation. It may take several tries for ignition to completely  
purge all the air from the gas line.  
Warning: Conversion must be done by a qualified service technician. Main burner orifice(s) and new  
gas conversion label are provided in conversion kit attached to manifold pipe.  
CONVERSION INSTRUCTIONS FROM NATURAL GAS TO (LP) PROPANE GAS  
1. Make sure gas supply to furnace is off prior to conversion and disconnect electrical power to unit.  
VINYL CAP  
GAS CONTROL LEVER SHOWN  
IN "OFF" POSITION  
2. Open brass union located between the gas valve and burner box. Remove  
the4mountingscrewssecuringmanifoldplatetotheburnerbox. Remove  
CONVERTIBLE  
REGULATOR  
RED LP RING  
the top 2 screws holding the burner box top in place and then remove the  
1 screw holding the end of the manifold pipe in place. Grasp union and  
remove manifold pipe.  
OFF  
3. Remove (1) Natural gas main burner orifice marked 44 for DV-20E or  
(2) Natural gas main burner orifices marked 44 for DV-40E located in  
the manifold pipe and replace with (1) LPgas main burner orifice marked  
55 for DV-20E or (2) LP gas main burner orifices marked 55 for DV-40E  
supplied in conversion kit.  
TOP VIEW  
BACK END VIEW  
4. Replace manifold pipe being sure to locate orifice(s) in the end of the burner. Secure the manifold and top burner box cover in  
place using the screws earlier removed. Reconnect the brass union.  
5. Remove the vinyl cap and unscrew the gas control convertible regulator and reverse to LP gas side (red ring on regulator) and screw  
back into place. Reattach vinyl cap. Refer to figure illustrating the gas valve.  
6. Place Natural gas main burner orifice(s) in conversion kit. Attach conversion kit to manifold pipe. Attach new label to unit name-  
plate indicating that the unit was converted to LP gas.  
7. Turn on gas supply to furnace and check all gas connections for leaks with soap solution, watching for bubbles on all gas connec-  
tions.  
8. Turn on electrical power to unit and turn on furnace to verify proper operation. It may take several tries for ignition to completely  
purge all the air from the gas line.  
Page 8  
19562-1-0606  
 
CLEARANCES  
1. Pick a location on a wall with a clear space of 36" (91.4cm)  
The vent terminal of a direct vent appliance, with an input of  
50,000 BTU (14.6KW) per hour or less shall be located at least 9"  
(229mm) from any opening through which flue gases could enter  
a building.  
high by 43" (109cm) wide in the room. In selecting a location  
for installation, it is necessary to provide adequate accessibility  
clearancesforservicingandproperinstallation. Besuretolocate  
the unit close enough to a 115 VAC wall receptacle to properly  
power appliance.  
The bottom of the exhaust vent terminal and the air intake shall  
be located at least 12" (305mm) above grade and must be vented  
outside.  
2. Unit is supported by a wall bracket secured to the wall.  
3. When facing the front of the furnace the minimum clearances  
from casing to combustible construction are 10" (254mm) on  
top, 3" (76mm) on each side, recommend 18" (457mm) on right  
side for servicing and 0" (0mm) from the floor and 0" (0mm)  
to rear wall.  
4. Theblackockedexhaustpipe,containedinDVE-1KitorDVE-  
2 Kit, has zero (0") inches (0mm) clearance to combustibles.  
5. The minimum distance from the center of the vent cap to the  
nearest outside corner or obstruction is 12" (305mm).  
6. The minimum wall depth is 2" (51mm) and the maximum is  
10" (254mm) [or 32"(813mm) using the extended vent terminal  
kit accessory]. The use of vent tubes not supplied by the  
manufacturer may result in unsatisfactory performance.  
WARNING: The nearest point of the vent cap should be  
a minimum horizontal distant of six (6) feet (1.83m) from  
any pressure regulator. In case of regulator malfunction,  
the six (6) feet (1.83m) distance will reduce the chance of  
gas entering the vent cap.  
Installation on Rugs and Tile  
If this appliance is to be installed directly on carpeting, tile, or other  
combustible material, other than wood flooring, the appliance shall  
be installed on a metal or wood panel extending the full width and  
depth of the appliance.  
The base referred to above does not mean the fire-proof base as  
used on wood stoves. The protection is primarily for rugs that may  
be extremely thick and light-color tile that can discolor.  
FURNACE INSTALLATION  
Locating Wall Opening (Figures 2, 3 and 4)  
The recommended location for this furnace is on an outside wall.  
(The unit can be located on an inside wall but must be vented  
using the extended vent kit and should not exceed 15' (4.6m) in  
exhaust vent length.) Locate wall studs so that wall vent opening  
will be located between wall studs. The wall studs can be used for  
attachment of wall mounting bracket. The wall opening required  
for venting is a 3 1/4" (83mm) minimum diameter opening.  
RefertoFigure2forpositioningthefurnaceonwallandforlocating  
gas line connection and vent opening. Furnace can sit on the floor  
and should be secured to the wall through the wall bracket secured  
to the rear top shroud.  
MAY BE 20" TO 13"  
TO AVOID STUD  
20" (508mm)  
12 5/16"  
(313 mm)  
Figure 3  
WALL  
2" (51mm) TO 13" (330mm)  
3 1/4" (83mm) DIA. VENT  
HOLE THRU OUTSIDE WALL  
2" (51mm) TO 32" (813mm)  
1/2" (13mm) DIA.  
GAS SUPPLY  
FLOOR TO  
BOTTOM OF  
WALL BRACKET  
17 11/16"  
(449mm)  
10 1/2"  
8 3/4"  
(222mm)  
3"  
(76mm)  
(267mm)  
FRONT OF FURNACE  
Figure 2  
Figure 4  
19562-1-0606  
Page 9  
 
Installing Wall Bracket (Figures 5 and 6)  
After finding a location for the furnace, gas supply and vent, the  
wall bracket must be positioned and installed. The bracket should  
be mounted to the wall studs, if possible, or anchored solidly to the  
wall. Use the (2) 10 x 1" (25mm) hex-head screws or (2) plastic  
anchors provided. Drill (2) 5/16" (8mm) diameter holes in wall if  
plastic anchors are used. Attach the two wall mounting brackets  
to the casing back by using (4) 10 x 1/2" (13mm) hex-head screws  
provided.  
EXHAUST AIR  
ORANGE SILICONE  
ELBOW CONNECTOR  
INTAKE AIR  
BLACK FLEXIBLE HOSE  
Figure 8  
SILICONE COUPLING  
HOSE CLAMP  
VENT TUBING  
EDGE  
HOSE CLAMP  
EXHAUST CONNECTIONS  
Figure 5  
4" (102mm)  
CASING  
WALL  
INTAKE FLEX HOSE CONNECTION  
WITH INTERNAL METAL COUPLING  
WALL MOUNTING BRACKET  
BACK  
#10 X 1"  
VENT COUPLING CONNECTIONS  
EXTENDED VENT  
#10 X 1/2"  
Figure 9  
WALL  
BRACKET  
Venting (Figures 7, 8 and 9)  
#10 X 1/2"  
This unit is vented directly out the back using the concentric vent  
tube assembly provided. See Figure 2 for vent hole location. This  
hole location can be conveniently moved closer to unit exhaust  
outlet tube to avoid wall stud interference if necessary. The orange  
silicone exhaust elbow would need to be cut to length. Do not  
locateventdirectlybehindtheexhaustoutlet. Donotusetheorange  
silicone elbow for extended vent runs where the possibility of  
flue condensate exists unless the run is horizontal and the elbow is  
sloped downward away from the heater. See Figure 12 for extended  
vertical venting.  
Figure 6  
WALL  
KEEP CAP ON  
MOUNTING PLATE  
UN-USED AIR  
INTAKE OPENING  
The vent provided will accommodate walls up to 10" thick and  
can be cut shorter for thinner walls if desired by using a hacksaw  
or cut-off saw. Be sure to leave the minimum 3/4" of tube length  
extending beyond the outside wall plate. Both the inner and outer  
tube will be cut to the same length as the inner exhaust tube has an  
extension piece which is added during final outside assembly.  
INTAKE AIR  
EXHAUST  
EXHAUST ELBOW MAY  
BE CUT TO LENGTH  
TO FIT VENT BOX.  
SECURE IN PLACE  
USING HOSE CLAMPS  
PROVIDED.  
INTAKE FLEX HOSE  
WITH CLAMPS  
Figure 7  
Page 10  
19562-1-0606  
 
FURNACE INSTALLATION (continued)  
Be sure to deburr the ends with a file after cutting. Installation is  
the vent system. In doing this, it is important to securely seal the  
vent system and slope all horizontal runs downward 1/4" (6mm)  
per foot (305mm) toward the vent terminal outside to drain out  
any condensate. It is also necessary to adequately support both the  
exhaust and intake and to center the exhaust pipe in the wall.  
easy after cutting the wall opening secure the vent terminal box  
in place using the (4) 10 x 1" hex-head screws provided. Locate  
the box so that the middle exhaust tube is directed toward the  
furnace exhaust outlet opening. See Figure 8. Attach the black 2"  
flexible inlet air hose to the bottom 2" connector on the vent box  
using a hose clamp. Secure the other end to the lower inlet air  
box connector using the hose clamp. Do not kink hose. Attach the  
long straight end of the 2" orange silicone exhaust elbow to the  
middle vent terminal tube and rotate the elbow toward the furnace  
exhaust outlet. Secure the hose to the vent box using a hose clamp.  
Carefully push the furnace back closer to the wall and secure the  
exhaust elbow to the 2" exhaust tube exiting the unit. Secure the  
elbow in place using the last remaining hose clamp. The furnace  
can now be secured to the wall.  
Besuretoconsultlocalcodespriortoinstallationtoverifyallowable  
procedures.  
Installation of Shroud  
To complete inside installation, secure furnace to the wall bracket  
by attaching the two wall mounting brackets to the wall bracket  
by using (2) 10 x 1/2" (13mm) hex-head screws provided (See  
Figures 4 and 6). To attach the right shroud and left shroud to the  
casing back, the 3/4" wide flange on the shroud must be positioned  
toward the casing side. When positioned correctly, the (6) louvers  
on the shroud will be facing up and the knock-out on the shroud  
will be facing down. Attach the right shroud and left shroud to the  
casingbackwith(3)10x1/2"hex-headscrewssuppliedinhardware  
package, for each shroud. Attach top shroud to right shroud and  
left shroud with (4) Phillips-head screws, supplied in hardware  
package. Insert air filter into top shroud.  
The furnace can be vented with up to a maximum length of 15'  
(4.6m) including termination vent and using 2 - 90° elbows. Also,  
the furnace can be vented with up to a maximum length of 10'  
(3m) including termination vent and using 3 - 90° elbows. For  
longer vent lengths order the vent kit, Part Number DVE-1 and  
DVE-2. See Figures 11 and 12 illustrating extended vent run and  
venting options.  
Attention:Iftherightshroudandleftshroudareinstalledincorrectly,  
with the 3/4" wide flanges facing inward, the top shroud will not  
be able to be installed onto the side shrouds. The top shroud will  
appear to be 2 inches, too narrow.  
Note: If the extended vent kit is used and the exhaust vent pipe  
is run through a cold space, such as an attic or a garage, the pipe  
should be insulated using 1/2" (13mm) thick fiberglass insulation  
or equivalent to keep the flue products warm enough to avoid  
condensation. Also, slope 1/4" (6mm) per foot (305mm) the vent  
terminal horizontal run downward toward the outside of the house  
to assure any condensate flow out of vent system. Horizontal  
vent pipe runs of 5 feet (1.5m) or more in length may accumulate  
condensation in the exhaust pipe and must, therefore, be sloped  
downward to drain any condensate out of the end vent terminal.  
Use straps or other suitable supports spaced every 5 feet (1.5m) to  
adequately hold pipe. Be sure to avoid any low spots or sags in  
pipe run. Be sure all connections are tight using the hose clamps  
as shown in Figure 9, "Vent Coupling Connections."  
Vent Terminal (Figure 10)  
Place the 6 3/8" x 6 3/8" (162mm x 162mm) black foam, wall plate  
gasket within the mounting plate. The 4 3/4" (121mm) diameter  
hole in the black foam gasket will allow for installation of the  
concentricventtubeassembly.Slidetheoutsidemountingplateinto  
place on the concentric vent tube assembly. The outside mounting  
plate should seal against the face of the building and be secured  
in place using (4) 10 x 1" hex-head screws. Be sure to caulk and  
seal around the pipe on the exterior using high temperature exterior  
grade, silicone caulk rated at 204°C/400°F. Wipe some silicone  
sealant on the 2" (51mm) exhaust pipe extension. The end cap can  
be pushed into place on the exhaust outlet tube.  
For wall depths thicker than 10" (254mm) order the extended vent  
terminal kit which will cover walls to 32" (813mm) thickness.  
The vent pipes must be cut to length to assemble for desired wall  
thickness.  
Attention: The opening on the bottom of the end cap must be  
positioned toward the ground. The opening on the bottom cannot  
be pivoted to the right or left, it must be centered toward the  
ground.  
Forextendedventing,itisalsoacceptabletouse2"(51mm)diameter  
PVC or ABS pipe for the combustion air intake supply piping  
only to the unit. If this is used, the pipe and fittings must conform  
to ANSI and ASTM Standards D1785 for SCH. 40 PVC, D2665  
for PVC-DWV, D2241 for SDR-21 and SDR-26 PVC, D2661 for  
ABS-DWV and F628 for SCH. 40 ABS. Pipe cement and primer  
must be used and conform to ASTM Standard D2564 for PVC or  
D2235 for ABS. This PVC or ABS pipe must not be used for  
the exhaust vent pipe run.  
NO. 10 X 1 1/2"  
SCREWS (4)  
INLET AIR  
CAULK AROUND PIPE  
EXHAUST FITTING-SLIDE ONTO  
2" EXHAUST TUBE AND USE RTV  
SEALANT TO SECURE IN PLACE  
WITH OUTLET POINTED DOWN  
AS SHOWN  
Note: Type SDR pipe is not approved for use in Canada.  
EXHAUST  
AIR  
12"(305mm)MIN.  
ABOVE GRADE  
For new construction installation, the intake and exhaust vent  
can be run inside a wall, a vertical or horizontal distance prior to  
exiting the wall. This can be done but not the preferred method of  
installation due to the inability to perform periodic inspection of  
Figure 10  
19562-1-0606  
Page 11  
 
VENT TERMINAL  
EXHAUST  
INTAKE  
SLOPE THE VENT TERMINAL  
HORIZONTAL RUN DOWNWARD  
THE OUTSIDE TO DRAIN OUT  
ANY CONDENSATE  
SLOPE DOWNWARD 1/4" (6mm)  
PER FOOT (m) TO DRAIN ANY  
CONDENSATE OUTSIDE  
SUPPORT STAP EVERY  
5 FT. (1.5m) MIN.  
COUPLING WITH  
HOSE CLAMPS  
INTAKE AIR  
EXHAUST AIR  
ELBOW WITH CLAMPS  
INTAKE AIR  
EXHAUST AIR  
INTERIOR WALL  
SHROUD SIDE  
Figure 12  
FILTER  
Reassembly and Resealing Vent-Air Intake System  
When vent-air intake system is removed for servicing the furnace,  
the following steps will assure proper reassembly and resealing  
of the vent-air intake assembly. Be sure all hose connections and  
elbow assemblies are re-secured in place using the hose clamps  
removed. Reattachallscrewssecuringmountingangesandinspect  
all connections for a tight fit. Use high temperature silicone caulk  
rated at 204°C/400°F to reseal the inlet air vent pipe and exhaust  
TEMPERATURE CONTROL DOOR  
Figure 11  
Condensate Removal (Figures 11 and 12)  
The condensate drain kit is used in conjunction with DVE and  
DVE-2, intake/exhaust extension kits. The condensate drain kit is  
required whenever there is a vertical vent run, in a heated room [10  
ft. (3m) or more for DV-40E or 6 ft. (1.8m) or more for DV-20E],  
in the intake/exhaust venting.  
air vent pipe to the mounting plate.  
Whenever a vertical vent run, in a heated room [10 ft. (3m) or more  
for DV-40E or 6 ft. (1.8m) or more for DV-20E] and a horizontal  
vent run are combined, you must purchase the optional condensate  
drain kit, part number DV-1108. If the vertical vent run lengths are  
less than those required for the condensate drain kit, you can slope  
the horizontal vent run portion, downward 1/4" (6mm) per foot  
(.3m) to the outside. However, if local codes prohibit condensate  
from draining outside and the appliance produces condensate, the  
horizontal portion of the vent run must slope downward, to the  
appliance,1/4"(6mm)perfoot(.3m). Thiswillallowanycondensate  
to flow into the condensate drain kit. Do not use the orange silicone  
elbow supplied with unit to catch condensate. You can route the  
condensate from the condensate drain kit to an existing drain or  
into the condensate drain pan located within the appliance.  
Whenever a horizontal vent run is used, where local codes allow,  
you can slope the exhaust pipe downward, to the outside, 1/4"  
(6mm) per foot (305mm). The downward slope on the exhaust  
pipe will allow any condensate to flow out of the exhaust pipe. If  
local codes prohibit condensate from draining to the outside and  
the appliance produces condensate you must purchase condensate  
drain kit, part number DV-1108.  
Page 12  
19562-1-0606  
 
LIGHTING INSTRUCTIONS  
FOR YOUR SAFETY READ BEFORE OPERATING  
WARNING: If you do not follow these instructions exactly, a fire or explosion may result caus-  
ing property damage, personal injury or loss of life.  
A. This appliance does not have a pilot. It is equipped with  
an ignition device which automatically lights the burner.  
Do not try to light the burner by hand.  
• If you cannot reach your gas supplier, call the fire  
department.  
C. Use only your hand to push in or turn the gas control  
knob. Never use tools. If the knob will not push in  
or turn by hand, don't try to repair it; call a qualified  
servicetechnician. Forceorattemptedrepairmayresult  
in a fire or explosion.  
B. BEFORE OPERATING smell all around the appliance  
area for gas. Be sure to smell next to the floor because  
some gas is heavier than air and will settle on the floor.  
WHAT TO DO IF YOU SMELL GAS  
• Do not try to light any appliance.  
D. Do not use this appliance if any part has been under  
water. Immediately call a qualified service technician  
to inspect the appliance and to replace any part of the  
control system and any gas control which has been  
under water.  
• 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.  
OPERATING INSTRUCTIONS  
1. STOP! Read the safety information above.  
5. Remove control access panel (front panel).  
2. Set the thermostat to lowest setting.  
6. Turn gas control knob clockwise  
"OFF."  
to  
3. Turn off all electric power to the appliance.  
7. Wait ten (10) minutes to clear out any gas.  
Then smell for gas, including near the floor. If you smell  
gas, STOP! Follow "B" in the safety information above.  
If you don't smell gas, go to the next step.  
4. This appliance is equipped with an ignition  
device which automatically lights the burner. Do not try  
to light the burner by hand.  
8. Turn gas control knob counterclockwise  
to "ON".  
VINYL CAP  
GAS CONTROL LEVER SHOWN  
IN "OFF" POSITION  
CONVERTIBLE  
REGULATOR  
9. Replace control access panel (front panel).  
10. Turn on all electric power to the appliance.  
11. Set thermostat to desired setting.  
OFF  
12. If the appliance will not operate, follow the instructions  
"TO TURN OFF GAS TO APPLIANCE" and call your  
service technician or gas supplier.  
TOP VIEW  
BACK END VIEW  
TO TURN OFF GAS TO APPLIANCE  
1. Set the thermostat to lowest setting.  
4. Turn gas control knob clockwise  
"OFF." Do not force.  
to  
2. Turn off all electric power to the appliance if  
service is to be performed .  
5. Replace control access panel (front panel).  
3. Remove control access panel (front panel).  
19562-1-0606  
Page 13  
 
WIRING  
GV = GAS VALVE  
LS = LIMIT SWITCH  
FS = FLAME SENSOR  
XFMR = TRANSFORMER  
PS = PRESSURE SWITCH  
IGN = HOT SURFACE IGNITOR  
ROS = ROLLOUT LIMIT SWITCH  
OPTIONAL WALL MOUNT THERMOSTAT  
DISCONNECT INTEGRAL THERMOSTAT "R", "W", AND "C" LEADS AND ATTACH WALL THERMOSTAT AS SHOWN  
CORDSET 115 VAC  
XFMR  
BLACK HOT  
SMOOTH  
INSULATION  
BLACK NEUTRAL  
RIBBED  
INSULATION  
W
R
ON/OFF  
POWER SWITCH  
GV  
THERMOSTAT  
ELECTRONIC  
INTEGRAL  
CIRCULATING AIR  
BLOWER MOTOR  
COMBUSTION AIR  
INDUCER MOTOR  
RED LED  
STATUS  
LIGHT  
HOT SURFACE  
IGNITOR  
ORG  
ORG  
GRN  
RED  
9
8
7
6
5
4
3
2
1
FLAME SENSOR  
IGN  
RED  
PRIMARY  
115 VAC  
TRANSFORMER  
24 VAC  
BLU  
BLU  
SECONDARY  
COMMON  
GND  
3A FUSE  
WHITE  
BLACK  
6
5
4
3
ON/OFF  
2
1
THERMOSTAT  
LIMIT  
ROLLOUT  
PRESSURE  
SWITCH  
GAS  
VALVE  
SWITCH LIMIT SWITCH  
PUR  
PUR  
115 VAC  
24 VOLT  
FIELD INSTALLED  
INDUCER  
BLOWER  
IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE  
APPLIANCE MUST BE REPLACED, IT MUST BE REPLACED  
WHT  
BLK  
WITH A WIRE OF AT LEAST 105  
°
C TEMPERATURE RATING.  
CIRCULATING AIR BLOWER  
The appliance, when installed, must be electrically grounded in ac-  
cordance with local codes or, in the absence of local codes, with the  
NationalElectricalCode,ANSI/NFPA70orCanadianElectricalCode,  
CSA C22.1, if an external electrical source is utilized. This appli-  
ance is equipped with a three-prong [grounding] plug for your  
protection against shock hazard and should be plugged directly  
into a properly grounded three-prong receptacle. Do not cut or  
remove the grounding prong from this plug. For an ungrounded  
receptacle, an adapter, which has two prongs and a wire for ground-  
ing, can be purchased, plugged into the ungrounded receptacle and  
its wire connected to the receptacle mounting screw. With this wire  
completing the ground, the appliance cord plug can be plugged into  
the adapter and be electrically grounded.  
to field locations different air currents may effect the control sensing  
of the thermistor. This sensing bulb can be re-located if necessary to  
provided for better room air sensing and control.  
Replacement of Thermistor with 24 Volt Wall Thermostat  
1. If furnace is installed, turn off gas supply and electric supply.  
2. Remove casing front.  
3. Remove black hose from front nipple on pressure switch.  
4. Remove junction box cover (4 screws).  
5. Please refer to wiring diagram for removal of the following  
wires.  
6. Internal Electronic Thermostat/Temperature Control  
Board  
Attention! No 24 volt wall thermostat wires are to be at-  
tached to the internal electronic thermostat.  
7. Control Board  
A. Remove white wire form screw marked W.  
B. Remove yellow wire from screw marked C.  
C. Remove red wire from screw marked R.  
8. Route (2) wires from any 24 volt wall thermostat through the  
casing back of furnace to the screws marked W and R on the  
control board.  
CAUTION:Labelallwirespriortodisconnectionwhenservicing  
controls. Wiring errors can cause improper and dangerous  
operation. Verify proper operation after servicing.  
Note: For testing flame sensor circuit use a micro-amp meter in  
series with sensor. Minimum current should be 1 micro-amp dur-  
ing operation. Be careful as flame sensor is in the 115VAC circuit.  
If current is below 1 micro-amp, remove sensor, clean with light  
sandpaper and retest.  
9. Replace junction box cover (4 screws).  
10. Replace black hose onto front nipple on pressure switch.  
11. Replacement of thermistor with 24 volt wall thermostat is  
completed.  
Note:Thisheaterisequippedwitharemotebulbelectronicthermistor  
control located down low at the back of the furnace. Sometimes due  
Page 14  
19562-1-0606  
 
MAINTENANCE  
Removing Gas Valve  
Proper Main Burner Flame  
1. Remove front grill assembly.  
The proper main burner flame will be a blue primary (inner) flame  
with a larger, lighter blue secondary (outer) blue flame.  
2. Disconnect manifold union assembly at gas valve.  
3. Remove (2) two 24 volt wires from gas valve. Label wires prior  
to disconnection from gas valve.  
4. Remove gas valve from gas valve bracket.  
Removing Main Burner Orifice(s)  
1. Remove front grill assembly.  
2. Remove burner compartment access panel (2 screws).  
3. Disconnect manifold union assembly.  
4. Disconnect manifold union assembly brackets (5 screws).  
Removing Ignitor and Flame Sensor  
1. Remove front grill assembly.  
2. Remove ignitor from burner compartment (2 screws).  
3. Remove flame sensor from burner compartment (1 screw).  
Cleaning Combustion (Exchanger) Assembly  
A QUALIFIED SERVICE PERSON should remove the  
combustion (exchanger) assembly. Apply air pressure to the  
inside of the combustion (exchanger) assembly in order to clear  
all passageways.  
Figure 13  
Cleaning Main Burner(s)  
Remove main burner(s) and apply air pressure inside the throat and  
ports of the main burner(s).  
Removing Main Burner(s)  
1. Remove front grill assembly.  
2. Remove burner compartment access panel (2 screws).  
3. Remove main burner(s) from burner compartment (2 screws  
per main burner).  
Oiling  
The blower motor has an oil hole located on each end of the motor.  
Use #20 motor oil only. It is best to oil the motor several times  
during the heating season using 2 or 3 drops each time.  
OPERATION AND TROUBLESHOOTING  
Your new furnace should provide many years of trouble free  
performance, however, a yearly inspection of the burners , flue  
passageways and the outlet vent assembly should be done. Be  
sure all passageways are open and clear of any obstruction, or soot  
build up. Be sure to shut off all power to the unit while performing  
this inspection.  
The hot surface ignitor is energized and after a 17 second warm-  
up, the gas valve circuit is energized, opening the gas valve  
and igniting the burners. After burning for about 30 seconds,  
the circulating air blower comes on, delivering warm air to  
the room. If ignition does not occur, the ignition sequence is  
repeated again up to 2 more times. (3 trials for ignition-total)  
3. After the furnace operates and satisfies the thermostat, the gas  
valve closes and the circulating air blower continues to run for  
about 2 minutes and then shuts off. The inducer blower runs  
for 5 seconds and shuts off.  
Periodically remove the circulating air filter and clean with water  
to remove all dirt. Shake dry and reinstall in unit.  
System Operation  
1. This furnace has an electronic thermostat and control board  
to monitor the room temperature and then control the furnace  
operation to provide the best comfort and performance from a  
heating appliance. To operate unit turn ON/OFF switch to ON  
and then turn temperature control knob clockwise slowly till  
furnace turns on. For typical room comfort, the control knob  
should be pointed toward medium.  
2. The furnace control board follows sequence of operation which  
allows for self diagnosis in the event there is a problem. The  
control then blinks a status light, a set number of blinks based  
on what problem has been encountered. When the furnace is  
on and there is a no fault condition, the green LED is on.  
On a typical call for heat by the integral thermostat 24 VAC is  
applied to the W terminal on the board.  
If for any reason ignition and operation does not occur, the  
control board will blink the green fault status LED, a sequence  
code, indicating what to look for as a troubleshooting guide.  
If the green LED is ON but not blinking check the electronic  
temperaturecontroltoverifyitsoperation.Thiscanbeeasilydone  
bydisconnectingthe3electronictemperaturecontrolleadsfrom  
the main furnace board and using a pig tail jumper to connect  
R & W together on the board. If the furnace comes on and runs  
normally the temperature control board is malfunctioning. If  
the heater still does not come on, then the main furnace board  
is malfunctioning. Look for any fault codes below and verify  
the 3 amp fuse is not blown.  
The inducer blower circuit is energized and the inducer blower  
comes on for 15 seconds pre-purging out any gas and closing  
the pressure switch.  
19562-1-0606  
Page 15  
 
FURNACE CONTROL BOARD  
DIAGNOSTICS  
FAULT SEQUENCE CODE — TROUBLE SHOOTING GUIDE  
# of Blinks Fault Condition  
Fault Correction  
Steady On  
1 Flash  
Control OK  
Temperature limit switch is open  
-Check Circulating Air Blower Inlet or Grill Outlet for Blockage, Inducer  
Blower/Circulating Air Blower Run to Cool Heat Exchanger and Limit  
-Check for Flame Roll Out Condition Causing Roll Out Limit Switch on  
Burner Box to Open  
-Clean Circulating Air Filter  
2 Flashes  
Pressure switch is open with inducer on  
-Check Heat Exchanger and Flue System, Outlet and Inlet for Restriction  
-Check Inducer Blower/Wheel for Operation/Airflow  
-Check Pressure Switch  
3 Flashes  
4 Flashes  
Pressure switch is closed with inducer off -Check Pressure Switch and Replace  
Lockout due to failed ignition  
-Check for Broken Ignitor  
-Check for Bent Ignitor Bracket - Ignitor too far from Burner  
-Check for Flame Sensor Malfunction/or False Ground  
-Check Gas Valve  
-Reset Thermostat  
5 flashes  
L1/Neutral reversed or voltage not present -Shut Off Power to Unit and Dis-Connect Cordset Plug from Wall Recep-  
on L1  
tacle.  
Open Junction Box and Un-Reverse Polarity of Incoming Power Leads  
Rapid Flash Flame sense or internal control fault  
-Check Ignitor Operation  
-Check Flame Sensor for Malfunction or False Grounding  
-Check Gas Valve  
-Reset Thermostat  
Note: If the hot surface ignitor is to be replaced, be sure to disconnect all power to the unit. Be very careful in handling the new ignitor  
as they are fragile and can be broken easily if hit or dropped.  
Page 16  
19562-1-0606  
 
HOW TO ORDER REPAIR PARTS  
Parts can be ordered only through your service person or dealer. For best results, the service person or dealer should order parts through  
the distributor. Parts can be shipped directly to the service person/dealer.  
All parts listed in the Parts List have a Part Number. When ordering parts, first obtain the Model Number from the name plate on your  
equipment. Then determine the Part Number (not the Index Number) and the Description of each part from the following appropriate  
illustration and list. Be sure to give all this information.  
Furnace Model Number  
Part Description  
Part Number  
Furnace Serial Number  
Type of Gas (Propane or Natural)  
Do not order bolts, screws, washers or nuts. They are standard hardware items and can be purchased at any local hardware store.  
Shipments contingent upon strikes, fires and all causes beyond our control.  
Empire Comfort Systems, Inc. Nine Eighteen Freeburg Ave. Belleville, IL 62222-0529  
PARTS LIST  
PLEASE NOTE: When ordering parts, it is very important that part number and description of part coincide.  
INDEX  
NO.  
PART  
NUMBER  
INDEX  
NO.  
PART  
NUMBER  
DESCRIPTION  
DESCRIPTION  
1
2
3
4
5
6
7
8
9
DV-1378  
DV-1376  
R-2521  
DV-1375  
DV-1379  
DV-1048  
R-2586  
19676  
DV-1373  
DV-1368  
R-2584  
R-2573  
R-2598  
R-1279  
DV-1367  
R-2546  
R-2522  
19561  
DV-1370  
R-1995  
R-6989  
R-8140  
R-2577A  
DV-1365  
R-1468  
R-2099  
DV-1371  
DV-1372  
15790  
SHROUD TOP  
SHROUD SIDE RIGHT  
AIR FILTER  
39  
40  
R-2575  
DV-1038  
FLAME ROLLOUT SWITCH  
BURNER COMPARTMENT ACCESS  
PANEL  
BURNER COMPARTMENT  
GAS VALVE (NAT GAS)  
GAS VALVE (LP GAS)  
VALVE BRACKET ASSEMBLY  
MANIFOLD ASSEMBLY (DV-20E-5 ONLY)  
MANIFOLD ASSEMBLY (DV-40E-5 ONLY)  
ORIFICE (NAT GAS) - 1 REQUIRED ON  
DV-20E-5  
ORIFICE (LPG GAS) - 1 REQUIRED ON  
DV-20E-5  
ORIFICE (NAT GAS) - 2 REQUIRED ON  
DV-40E-5  
ORIFICE (LPG GAS) - 2 REQUIRED ON  
DV-40E-5  
MANIFOLD GASKET  
OBSERVATION HOLE COVER ASSEMBLY  
OBSERVATION HOLE COVER GASKET  
FRONT SHIELD ASSEMBLY  
BOTTOM SHIELD  
FRONT GRILL ASSEMBLY  
CASING FRONT ASSEMBLY  
HOSE CLAMP - 4 REQUIRED  
INLET HOSE  
FILTER RETAINER  
41  
42  
42  
43  
44  
44  
45  
DV-1039  
R-3237  
R-3238  
DV-1366  
DV-1016  
DV-1013  
P-88-44  
WALL MOUNTING BRACKET  
WALL BRACKET - 2 REQUIRED  
CONTROL DOOR PIN - 2 REQUIRED  
CONTROL DOOR ASSEMBLY  
CASING TOP  
BLOWER HOUSING - 2 REQUIRED  
BLOWER WHEEL - 2 REQUIRED  
BLOWER MOTOR  
MOTOR BASE WASHER - 4 REQUIRED  
LIMIT SWITCH  
INNER TOP  
CONTROL KNOB  
ON/OFF SWITCH  
JUNCTION BOX  
JUNCTION BOX COVER  
TRANSFORMER  
PRESSURE SWITCH  
CONTROL BOARD  
TEMPERATURE CONTROL BOARD  
CASING WELDED ASSEMBLY  
STRAIN RELIEF BUSHING  
CORD SET  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
29  
30  
31  
32  
33  
33  
34  
37  
38  
45  
45  
45  
P-88-55  
P-88-44  
P-88-55  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
NS  
NS  
NS  
NS  
M-148  
DV-781  
M-155  
DV-1040  
DV-1024  
DV-1363  
DV-1380  
R-2539  
R-3113  
R-3111  
DV-1192  
R-3114  
R-3115  
INNER END  
OUTLET ELBOW  
VENT PAN ASSEMBLY  
INLET CAP  
WALL PLATE GASKET - INSIDE  
WALL PLATE GASKET - OUTSIDE  
WALL PLATE - OUTSIDE  
TUBE SPACER  
END CAP ASSEMBLY  
SHROUD SIDE LEFT  
CASING SIDE - 2 REQUIRED  
COLLECTOR BOX (DV-20E-5 ONLY)  
COLLECTOR BOX (DV-40E-5 ONLY)  
INDUCER WHEEL  
INDUCER BLOWER HOUSING  
INDUCER MOTOR  
EXCHANGER ASSEMBLY (DV-20E)  
EXCHANGER ASSEMBLY (DV-40E)  
IGNITOR KIT  
15791  
R-2519  
DV-1169  
R-2523  
15783  
15784  
19565  
R-2587  
DV-1195  
DV-1193  
DV-1194  
DV-1377  
DV-1361  
DV-1108  
DV-1132  
R-8142  
BAFFLE - 1 REQUIRED ON DV-20E-5  
CONDENSATE KIT  
ELBOW KIT  
R-2543  
R-2541  
FLAME SENSOR  
BURNER (2 REQUIRED ON DV-40E-5)  
WIRE ASSEMBLY - CONTROL BOARD  
19562-1-0606  
Page 17  
 
PARTS VIEW  
Page 18  
19562-1-0606  
 
SERVICE NOTES  
19562-1-0606  
Page 19  
 
Empire Comfort Systems, Inc.  
918 Freeburg Ave. Belleville, IL 62220  
PH: 618-233-7420 or 800-851-3153  
FAX: 618-233-7097 or 800-443-8648  
Page 20  
19562-1-0606  
 

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