Archgard 42-DVT40N User Manual
Northfire 42
WARNING: If the information in this manual is not
followed exactly, fire or explosion may result
causing property damage, personal injury or loss
of life.
Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
WHAT TO DO IF YOU SMELL GAS:
42-dvt40n
Direct Vent
Gas Fireplace
For use with natural gas or propane*
USERS’ INSTALLATION
OPERATION &
MAINTENANCE MANUAL
∗ Do not try to light any appliance.
∗ Do not touch any electrical switch; do not use
any phone in your building.
∗ Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
∗ If you cannot reach your gas supplier, call the
fire department.
Installation and service must be performed by a
qualified installer, service agency or the gas
supplier.
Installer: Please leave this manual with the appliance owner for future reference
7116 Beatty Dr
Mission, BC V2V 6B4
Canada
This appliance may be installed in an
aftermarket permanently located,
manufactured home (USA only) or mobile
home, where not prohibited by local codes.
This appliance is only for use with the type
of gas indicated on the rating plate. This
appliance is not convertible for use with
other gases, unless a certified kit is used.
*Conversion kit required for Propane use
200-1912
JUNE 2010
CONTENTS
Introduction 4
Requirements for the state of Massachusetts 5
General Information 6
Appliance Description 7
Dimensions and Clearances 8
Installation Instructions 9 - 20
Operation Instructions 21 - 22
Maintenance 23
Trouble Shooting Instructions 24 - 25
Wiring Diagrams 26
Servicing 27 - 29
Replacement Parts 30
Warranty 31
Warranty Registration Form 32
CAUTION
Due to high temperatures, the appliance should be located out of traffic and away from
furniture and draperies.
Children and adults should be alerted to the hazards of high surface temperature and stay
away to avoid burns or clothing ignition.
Young children should be carefully supervised when they are in the same room as the
appliance.
Clothing or other flammable material should not be placed on or near the appliance.
Do not operate with cracked or broken glass. Be careful not to strike or slam the glass.
Any safety screen or guard removed for servicing an appliance must be replaced prior to
operating.
Installation and Repair should be done by a qualified service person. The appliance should be
inspected before use and at least annually by a professional service person. More frequent
cleaning may be required due to excessive lint from carpeting, bedding materials, etc. It is
imperative that the control compartments, burners and circulating air passageways of the
appliance are kept clean.
Patents Pending
Northfire 42 4
INTRODUCTION
Congratulations on choosing an Archgard fireplace!
The Northfire 42 is one of the most advanced direct vent fireplace heaters available. It is solidly
designed using the latest technology and manufactured to the highest quality. It is our aim to
provide you with an appliance for many trouble-free years of reliable service.
Some of the many features are:
Heater Classification The Northfire 42 is classified as a heating appliance.
Therefore, it has additional safety devices built-in and it can
be operated continuously for zone heating.
High Efficiency The Northfire 42 has one of the highest efficiencies of any
gas fireplace, which means that it is less expensive to
operate.
Adjustable Flame The flame aesthetics and heat output can be adjusted to suit
the owner’s liking and heating needs.
Solid Construction The Northfire 42 is constructed mainly of 14 and 18 gauge
galvanized and aluminized steel for long life and durability.
Optional Thermostatic Control The gas control system is “thermostat-ready” for any millivolt
wall thermostat or wireless remote control.
Please read the manual carefully prior to installation and operation of the appliance.
Proper installation, operation and maintenance of the appliance will provide you with
many years of enjoyment.
We recommend you record the following information:
Fireplace Model Number: 42-DVT40N Serial Number:
Date of Installation:
Type of Gas Used by the Fireplace: Natural Gas Propane
Dealer’s Name & Address:
Dealer’s Phone Number:
Northfire 42 5
Requirements for the state of Massachusetts
5.08: Modifications to NFPA-54, Chapter 10
(2) Revise 10.8.3 by adding the following additional requirements:
(a) For all side wall horizontally vented gas fueled equipment 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. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side wall horizontal vented gas fueled equipment, the installing
plumber or gasfitter shall observe that a hard wired carbon monoxide detector with an alarm and battery back-up is installed on the floor level where the gas
equipment is to be installed. In addition, the installing plumber or gasfitter shall observe 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 shall be
the responsibility of the property owner to secure the services of qualified licensed professionals for the installation of hard wired carbon monoxide detectors
a. In the event that the side wall horizontally vented 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.
b. In the event that the requirements of this subdivision can not be met at the time of completion of installation, 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.
2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance with the above provisions shall comply with
NFPA 720 and be ANSI/UL 2034 listed and IAS certified.
3. SIGNAGE. A metal or plastic identification plate shall 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) inch in size, "GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS".
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 inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248 CMR 5.08(2)(a)1 through 4.
(b) EXEMPTIONS: The following equipment is exempt 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. Product Approved 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.
(c) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDED. When the manufacturer of Product Approved side wall horizontally vented gas equipment provides a venting system design or venting system components with the equipment, the instructions provided by the manufacturer for installation of the equipment and the venting system shall include:
1. Detailed instructions for the installation of the venting system design or the venting system components; and
2. A complete parts list for the venting system design or venting system.
(d) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED. When the manufacturer of a Product Approved side wall
horizontally vented gas fueled equipment does not provide the parts for venting the flue gases, but identifies "special venting systems", the following requirements shall be satisfied by the manufacturer:
1. The referenced "special venting system" instructions shall be included with the appliance or equipment installation instructions; and
2. The "special venting systems" shall be Product Approved by the Board, and the instructions for that system shall include a parts list and detailed installation
instructions.
(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
venting instructions, and/or all venting design instructions shall remain with the appliance or equipment at the completion of the installation.
For the State of Massachusetts, installation and repair must be done by a plumber or gasfitter licensed in the Common-
wealth of Massachusetts.
For the State of Massachusetts, flexible connectors shall not exceed 36 inches in length.
The State of Massachusetts requires the installation of a carbon monoxide alarm in accordance with NFPA 720 and a CO
alarm with battery back up in the same room where the gas appliance is installed.
For the State of Massachusetts the appliances individual shut – off must be a t-handl e type valve
.
Northfire 42 6
GENERAL INFORMATION
APPLIANCE CERTIFICATION
This appliance is tested and certified to the following US and Canadian gas appliance
standards.
- ANSI Z21.88b-2003 / CSA 2.33b-2003, Vented Gas Fireplace Heaters
- CAN / CGA-2.17-M91, Gas-Fired Appliances for Use at High Altitudes
Please contact Archgard Industries Ltd., if you have any questions regarding the certification of
this appliance.
INSTALLATION CODES
This appliance must be installed by a qualified gas appliance installer.
The installation must conform with the local codes or, in the absence of local codes, with the
current National Fuel Gas Code, ANSI Z223.1/ NFPA 54, in the US or Installation Code, CAN/
CGA-B149, in Canada. Electrical connections and grounding must conform with local code, or
current National Electrical code, ANSI/NFPA No. 70-1987, in the US and in Canada, the
current Canadian Electrical Code, CSA C22.1.
We recommend that our gas hearth products be installed and serviced by professionals
who are certified in the U.S. by the National Fireplace Institute® (NFI) as NFI Gas
Specialists
SPECIFICATIONS
Manifold Pressure
Minimum Supply Pressure for
Purpose of Input Adjustment
Orifice Size
Nominal Input Rating
Altitude
Primary Air Opening
Natural Gas (NG) Propane (LP)
1.6 - 3.5 in. W.C. (0.4 - 0.9 kPa) 6.3 - 10.0 in. W.C. (1.6 - 2.5kPa)
4.5 in. w.c. (1.1 kPa) 11.0 in. w.c. (2.7 kPa)
#31 DMS (3.05 mm dia.) #50 DMS (1.60 mm dia.)
27,000 - 40,000 BTU/hr
(7.9 - 11.7 kW)
0 - 4500 ft (0 - 1372 m) 0 - 4500 ft (0 - 1372 m)
¼ in. (9.6 mm) ¼ in. (9.6 mm)
30,000-35,50000 BTU/hr
(9.1 - 10.7 kW)
HIGH ALTITUDE INSTALLATION
When installing this appliance beyond 4500 ft. (1372 m) above sea level. The appliance must
be properly de-rated and installed according to local codes, in the absence of local codes, with
the current National Fuel Gas Code, ANSI Z223.1/ NFPA 54, in the US or Installation Code,
CAN/CGA-B149, in Canada.
Northfire 42 7
APPLIANCE DESCRIPTION
FLAT FRONT
Top Louvers
(removable)
Ceramic glass front
Hinged bottom louvers
for control access
Northfire 42 8
DIMENSIONS AND CLEARANCES
APPLIANCE DIMENSIONS
44”
½”
23 ¼”
6 ½”
18”
42”
3/8 ¾”
CLEARANCES TO COMBUSTIBLES
BACK
SIDES
TOP
BOTTOM
ADJACENT SIDE WALL
MANTLE
VENT
MANTLE CLEARANCE
Combustible mantle allowed in
shaded area. Mantle extension
may be increased 1” (25mm)
for each additional 1” (25mm)
increase in clearance height.
34”
SIDE VIEW FRONT VIEW TOP VIEW
0” to stand-offs
0” to stand-offs
0” to stand-offs
0”
1” to side of faceplate
see diagram
1” to outside side and bottom surface,
2” to outside top surface.
NOTE: Low profile wooden crowns and
moldings above the unit are not
considered as mantles. I.E. 1” or less
protrusions on the upper mantle facing
are acceptable
6” (152 mm)
6 ½”
4 ½”
32 ½”
35 ½”
Minimum Height From Top
Surround: 12” (304mm)
Minimum Height From Bottom
of Appliance: 46” (1165mm)
Northfire 42 9
INSTALLATION INSTRUCTIONS
PRECAUTIONS
• This appliance must be installed by a qualified gas installer and the
installation must conform to the installation codes.
• Provide adequate clearance around air openings of the appliance. Never
obstruct front openings.
• Provide adequate clearances for proper operation and servicing of the
appliance.
• This appliance must be properly connected to a venting system.
• This gas appliance must not be connected to a chimney serving a separate
solid-fuel burning appliance.
• 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.
• Caution: Label all wires prior to disconnection when servicing controls.
Wiring errors can cause improper and dangerous operation.
• Verify proper operation after servicing.
• Do not use substitute materials.
• Do not abuse glass doors by striking or slamming shut.
• Do not use abrasive cleaners.
• Use only approved fireplace glass cleaner for cleaning your glass.
LOCATING GAS FIREPLACE
This appliance must be installed in any location that is free of plumbing, electrical wiring and
heating or air conditioning ducts. Select a location that is accessible for venting. See
ALLOWABLE TERMINATION LOCATIONS on page 13.
GAS CONNECTIONS
Have your gas supplier or a qualified gas fitter run a gas supply line into the fireplace. The line
must be properly sized and fitted according to the installation codes. Immediately up stream of the
supply connection, the fitter shall provide an accessible manual shut-off valve and a ⅛ NPT
plugged tapping accessible for connection to a test gauge.
CAUTION: 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 ½
psig (3.5 kPa). The appliance must be isolated from the gas supply piping system by closing its
individual manual shutoff valve during any pressure testing of the gas supply piping system at test
pressures equal to or less than ½ psig (3.5 kPa). Failure to do so will damage the appliance’s gas
valve. Such damage is not covered by the manufacturer’s warranty.
Northfire 42 10
INSTALLATION INSTRUCTIONS Cont...
Natural Gas Pressure Settings:
The inlet supply or line pressure must be a minimum of 4.5” w.c. (1.1 kPa) and a maximum of
8” w.c. (2 kPa). The orifice has a #31 DMS drill size.
ELEVATION INPUT RATING
0-4500 ft. (0-1372 m) 40,000 BTU/hr (11,700 watts)
4500 ft. (1372 m) + 40,000 BTU/hr (11,700 watts) less 4% per 1000 ft. (300 m)
Please contact your local distributor for the appropriate orifice size.
Propane Pressure Settings:
The inlet supply or line pressure must be a minimum of 11” w.c. (2.8 kPa) and a maximum of
14” w.c. (3.5 kPa). The orifice has a #50 DMS drill size.
ELEVATION INPUT RATING
0-4500 ft. (0-1372 m) 36,500 BTU/hr (10,700 watts)
4500 ft. (1372 m) + 36,500 BTU/hr (10,700 watts) less 4% per 1000 ft. (300m)
Please contact your local distributor for the appropriate orifice size.
NOTE: THE INPUT RATING SHOULD ALWAYS BE CHECKED WHEN FIRST RUNNING
THIS APPLIANCE. To do this, reduce the background flow rate, time the meter, light the
fireplace and take another reading after 15 mins. of operation. Check with your gas supplier for
the gas BTU content at your elevation. Input is the rate of flow multiplied by the heating value
of the gas (cubic feet/hour x BTU per cubic feet). Adjust the manifold pressure so that the unit
does not operate above the rated input. To do this, loosen the screw on the variable input knob
on the valve and reposition that the maximum input is correct. Retighten the screw.
ELECTRICAL CONNECTIONS
The Northfire 42 comes complete with a Blower installed and wired to an internal junction box.
Have a qualified electrician run a 120VAC supply line to the lower left side of the fireplace
before installing the appliance. He should leave 18” (460mm) of the supply line free for ease of
connection to the appliance. Connect the electrical supply line to the appliance at the same
time the gas line is being connected to the appliance.
Flip open the bottom grill and undo the 2 screws holding the control panel. Run the line into the
left side of the appliance through the hole in the rear of the junction box and hold with a
standard ⅞” clamp. Connect the ‘live’ (black) supply conductor to the free black conductor from
the speed controller with a marrette type wire connector. Connect the ‘neutral’ white supply
conductor to the free white conductor from the convection fan with a marrette type wire
connector. Connect the ‘ground’ (green or bare) conductor to the ground screw in the junction
box. Replace the junction box cover and control panel and fasten with the 2 screws.
Northfire 42 11
INSTALLATION INSTRUCTIONS Cont...
WIRING DIAGRAM
120 VAC
LINE
NEUTRAL
GROUND
NEUTRAL
GROUND
LINE
SPEED CONTROL
black
white
SIDE OF GAS
FIREPLACE
SPEED
CONTROL
MO
CONVECTION BLOWER
110F (43ºC) N.O. THERMAL
SNAP SWITCH
CONVECTION BLOWER
110F (43ºC) N.O.
THERMAL SNAP
SWITCH
VENT TERMINATION
1. See ALLOWABLE TERMINATION LOCATIONS and establish a suitable vent termination
location.
2. In heavy snowfall areas make sure vent termination is located where it cannot be blocked by
snow or snow from snow removal equipment.
3. Locate vent termination away from plants, bushes or any other object near the vent
termination that will interfere or obstruct the air flow around it.
4. DO NOT recess vent termination into walls, sidings or planters.
5. Vent terminations located below 7ft from grade level or anywhere that it can be a burn hazard
to the public, such as patios and balconies, must be protected with an Archgard approved
termination cage.
ALLOWABLE FIREPLACE LOCATIONS
See venting chart for
maximum and minimum
vertical/horizontal
venting configurations.
Northfire 42 12
INSTALLATION INSTRUCTIONS Cont...
FRAMING DIMENSIONS
17 ½”
35 ¾”
17 ½”
42”
TERMINATION
FRAMING
42”
11”
10”
41”
42”
58”
29”
NOTE: Be sure to include ¼” rise per
foot of horizontal length.
For rear vented fireplace be
sure to include 1” vertical rise
minimum per foot of horizontal
length beyond 6”.
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