Temco PS24MN, PS24MP Installation And Operating Instrictions
TEMCO FIREPLACE PRODUCTS, Inc.
Installation and Operating Instructions for Gas Log Heaters
Models PS24MN, PS24MP
Models ending with “N” use natural gas; models ending with “P” use propane (LP) gas.
This appliance operates as an
unvented room heater certified under
ANSI Z21.11.2-2000 when fitted to a
solid fuel burning masonry or factory
built fireplace with the flue damper
closed. It also operates as a
decorative appliance under ANSI
Z21.60a-2000.CGA 2.26a-2000, when
fitted to a solid fuel burning masonry
or factory built fireplace with the flue
damper open. State or local codes
may only allow operation of this
appliance in a vented configuration.
WARNING
If the information in this manual is not followed exactly, a fire or explosion may result
FOR YOUR SAFETY
• Do not store or use gasoline or other flammable vapors and liquids in the vicinity
of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric 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.
This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is
installed. Provisions for adequate combustion and ventilation air must be provided.
GAS FIRED
UNVENTED
ROOM HEATERS
LISTED
5L24
PATENT NO. US 6,390.808 B1
P.O. Box 1349 Manchester, TN 37349
P.O. Box 1148 Perris, CA 92572
1773 Parque Industrial Cachanilla
Mexicali, B.C. 21600
REV. 10/30/02 10:05 AM 76780M
CONTENTS
Important Information ......................................................................................................................................................................Page 3,4
Provision for Adequate Combustion and Ventilation Air ....................................................................................................................4
Installation
Unpacking ..................................................................................................................................................................................................6
Fireplace preparation ................................................................................................................................................................................6
Location ......................................................................................................................................................................................................6
Clearances .................................................................................................................................................................................................6
Gas connection ..........................................................................................................................................................................................7
Piping Chart ...............................................................................................................................................................................................8
Gas pressure check ..................................................................................................................................................................................9
Log positioning ........................................................................................................................................................................................10
Fireplace screen ......................................................................................................................................................................................10
Decorative volcanic ash .........................................................................................................................................................................10
Unit operation
To turn off gas to appliance ...................................................................................................................................................................11
Managing heat output .............................................................................................................................................................................13
Flame check ............................................................................................................................................................................................12
Maintenance ...................................................................................................................................................................................................13
Troubleshooting ............................................................................................................................................................................................14
Repair Parts ....................................................................................................................................................................................................15
Parts List .........................................................................................................................................................................................................15
Warranty Information ...................................................................................................................................................................................16
Installation and Startup Checklist .....................................................................................................................................................17, 18
Warranty Registration ..................................................................................................................................................................................19
M INIMUM DIMENSIONS FOR EXISTING SOLID FUEL BURNING FIREPLACES.
B
OPENING HEIGHT = H
C
A
HEARTH SIZE TABLE Opening Height
(H)
PS24MN 18" 30" 21" 15"
PS24MP 18" 30" 21" 15"
This appliance may be installed in an aftermarket, permanently located, manufactured (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 wi th other gases.
Front Width
(A)
Rear Width
(B)
Depth
(C)
2
IMPORTANT INFORMATION
INSTALLER: P lease leave these instructions with the owner.
OWNER: P lease retain these instructions for future reference.
WARNING: ANY CHANGE TO THIS HEATER OR ITS
CONTROLS CAN BE DANGEROUS.
IMPORTANT: READ THESE INSTRUCTIONS CAREFULLY
BEFORE INSTALLING.
NOTES
• Due to high temperatures, the appliance should be
located out of traffic and away from furniture and
draperies.
• Installation and repair should be done by an
experienced and qualified service person or gas
appliance installer.
• The appliance must 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 material, dust and pet hair, etc.
It is important that the control compartment, burners
and circulating air passageways of the appliance be
kept clean. Refer to instructions on Page 13.
• DO NOT place clothing or other flammable material on
or near the appliance.
• This appliance must only be used with pressures at the inlet
as shown in Table 1, page 10. Failure to check and
document these pressures may void the warranty.
• The installation must conform with local codes or, in the
absence of local codes, with the NATIONAL FUEL GAS
CODE, ANSI Z223, latest edition. If you cannot reference
these codes, DO NOT attempt to install this unit.
• Any safety screen or guard removed for servicing an
appliance must be replaced prior to operating the
heater.
• The appliance and its appliance main gas 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).
• The appliance must be isolated from the gas supply piping
system by closing its equipment shut-off valve during any
testing of the gas supply piping system at test pressures
equal to or less than 1/2 PSIG.
• DO NOT use this heater in recreational vehicles, bedrooms
or bathrooms.
• If this is the ONLY gas appliance, we recommend a
minimum 200 pound cylinder with a fill gauge. Use of a 100
pound cylinder is not recommended. Other household gas
appliances may require the tank size to be larger. Do not
operate the vent-free heater if the fuel level in the propane
tank is below 1/4 full.
• DO NOT use this heater if any part of it has been
submerged under water. Immediately call a qualified
technician to inspect the appliance and replace any part of
the control system and any gas control which has been
under water.
• Any outside air ducts in the fireplace shall be permanently
closed at the time of appliance installation.
• Check local, state or city codes to determine if unvented
heaters are permitted. If unvented heaters are not
permitted, the fireplace chimney damper must be fixed
at a minimum free (vent) opening area of 15 sq. ins.
This must be accomplished by a clamp or screw on the
chimney damper to stop at the minimum vent area. The
fireplace must also have a minimum free (vent) opening
of 15 sq. ins., (see figure 1).
• This appliance may be installed in an after-market*
manufactured "mobile" home where not prohibited by state
or local codes.
• *After-market: Completion of sale, not for purpose of re-
sale from the manufacturer.
• OUTSIDE AIR DAMPER OR ASH DUMP (IF PRESENT)
MUST BE CLOSED AND SEALED.
• Young children should be carefully supervised when
WARNING: Do not allow fans to blow directly into the
fireplace. Avoid any drafts that alter burner flame
patterns to prevent property damage.
WARNING: Do not use a blower insert, heat
exchanger insert or other accessory not approved for
use with this heater.
WARNING: During manufacturing, fabricating and
shipping, various components of this appliance are
treated with certain oils, films or bonding agents.
These chemicals are not harmful but may produce
annoying smoke and smells as they are burned off
during the initial operation of the appliance, possibly
causing headaches and eye/lung irritation. This is a
normal and temporary occurrence.
WARNING: This appliance is for installation only in a
solid-fuel burning masonry or UL 127 factory-built
fireplace or in a listed ventless firebox enclosure. It
has been designed certified for these installations.
Exception: DO NOT install this appliance in a factorybuilt fireplace that includes instructions stating it has
not been tested or should not be used with unvented
gas logs.
PS24 SERIES BTU / HR INPUT
GAS BURNER OPERATION
REAR BURNER
FRONT & REAR
HIGH LOW HIGH LOW
ONLY
NATURAL 40,000 22,000 25,500 19,000
LP (PROPANE) 40,000 24,000 25,500 19,000
they are in the same room as the appliance.
• An unvented room heater having an input rating of more
than 10,000 btu per hour shall not be installed in a
bedroom or a bathroom.
FOR INSTALLATION OF HIGH ALTITUDE
When installing this fireplace at an elevation above 2,000 feet
(in the United States), it may be necessary to decrease the
input ratin g by changing the existing burner orifice to a smaller
size. Input should be reduced four percent (4%) for each 1,000
feet above sea level, unless the heating value of the gas has
been reduced, in which case this general rule will not apply. to
identify the proper orifice size, check with the local gas utility.
Consult your local gas utility for assistance in determining the
proper orifice for your location.
Ref. No. Description
3
PROVISIONS FOR ADEQUATE COMBUSTION AND VENTILATION AIR
WARNING: This heater shall not be installed in a
confined space or unusually tight construction unless
provisions are provided for adequate combustion
ventilation air.
The National Fuel Gas Code, ANSI Z223.1 defines a
confined space as a space whose volume is less
than 50 cubic feet per 1,000 Btu per hour (4.8m3
per kw) of the aggregate input rating of all
appliances installed in that space and an
unconfined space as a space whose volume is not
less than 50 cubic feet per 1,000 Btu per hour (4.8
m3 per kw) of the aggregate input rating of all
appliances installed in that space. Rooms
communicating directly with the space in which
the appliances are installed, through ope nings not
furnished with doors, are considered a part of the
Today's homes are built more energy efficient than ever.
New materials, increased insulation and new construction
methods help reduce heat loss in homes. Home owners
weather strip and caulk around windows and doors to keep
the cold air out and the warm air in. During heating months,
home owners want their homes as airtight as possible.
While it is good to make your home energy efficient, you
need fresh air. All fuel-burning appliances need fresh air for
proper combustion.
SUPPLYING ADEQUATE VENTILATION
This appliance must be installed in an unconfined space.
The following information will help you classify yo ur space
and provide adequate ventilation for complete combustion.
An Unconfined Space has a minimum volume of 50 cubic
feet for each 1000 BTU/Hr input rating of all appliances in
the space. (4.8 m3 per kw), (cubic feet equals length x width
x height of space).
A Confined Space has a volume of less than 50 cubic feet
for each 1000 BTU/Hr input rating of all appliances in the
space, (4.8 m3 per kw), (cubic feet equals length x width x
height of space).
DETERMINING IF YOU HAVE A CONFINED OR
UNCONFINED SPACE.
Use this worksheet to determine if you have a confined or
unconfined space.
Space: Includes the room in which you will install heater
plus any adjoining rooms with doorless passageways or
ventilation grills between the rooms.
1. Determine the volume of the space (length x width x
height).
? Length x Width x Height = _____cu. ft. (volume of space)
? Example: Space size 25 ft. (length) x 25 ft. (width) x 8 ft.
(ceiling height) = 5,000 cu. ft. (volume of space)
? If additional ventilation from adjoining room(s) is supplied
with grills or doorless openings, add the volume of these
rooms to compute the total volume of the applicable
space.
2. Divide the space volume by 50 cubic feet to determine
the maximum BTU/Hr the space can support.
? ________(volume of space) ÷ 50 cu. ft. = (Maximum
BTU/Hr the space can support.
? Example: 5,000 cu. ft. (volume of space) ÷ 50 cu. ft. =
100 or 100,000 (maximum BTU/Hr the space can
support)
3. Add the BTU/Hr of all gas burning appliances in the
space.
Gas range ________________BTU/Hr
Vented gas heater __________BTU/Hr
Gas fireplace logs ___________BTU/Hr
Other gas appliances* + ______BTU/Hr
Total = _____BTU/Hr
Example: Gas range 60,000 BTU/Hr
Vent-free logs +29,000 BTU/Hr
Total =89,000 BTU/Hr
? *Do not include direct-vent gas appliances. Direct-vent
draws combustion air from the outdoors and vents to the
outdoors.
4. Compare the maximum BTU/Hr the space can support
with the actual amount of BTU/Hr used.
? __________ BTU/Hr (maximum the space can support)
? __________ BTU/Hr (actual amount of BTU/Hr used)
Example: 100,000 BTU/Hr (maximum the space can
support) 89,000 BTU/Hr (actual amount of BTU/Hr used)
The space in the above example is an unconfined space
because the actual BTU/Hr used is less than the maximum
BTU/Hr the space can support. If the space had been
confined, your options would be as follows:
A. Rework worksheet, adding the space of an adjoining
room. If the extra space provides an unconfined space,
remove door to adjoining room or add ventilation grills
between rooms. See Ventilation Air From Inside
Building.
B. Install a lower BTU/Hr heater, if lower BTU/Hr size
makes room unconfined.
CONVERTING CONFINED SPACE TO UNCONFINED
SPACE.
Additional volume to convert a confined to an unconfined
space could come from an adjoining space. When using an
adjoining spac e, you can provide two permanent openings:
one within 12" of the ceiling and one within 12" of the floor
on the wall connecting the two spaces (see options 1 and 2,
figure 2), or remove the door into the adjoining room.
VENTILATION AIR FROM OUTDOORS FOR
UNUSUALLY TIGHT CONSTRUCTION.
WARNING: If the area in which the heater may be
operated is smaller than that defined as an unconfined
space or if the building is of unusually tight
construction, provide adequate combustion and
ventilation by one of the methods described in the
National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section
5.3 or applicable codes.
4
PROVISIONS FOR ADEQUATE COMBUSTION AND VENTILATION AIR
Unusually tight construction is defined as construction
where:
a. walls and ceilings exposed to the outside atmosphere
have a continuous water vapor retarder with a rating of
one perm (6 x 10.11 kg per pa-sec-m2) or less with
openings gasketed or sealed and
b. weather stripping has been added on openable windows
and doors and
c. caulking or sealants are applied to areas such as joints
around window and door frames, between sole plates
and floors, between wall-ceiling joints, between wall
panels, at penetrations for plumbing, electrical and gas
lines and at ot her openings.
Figure
If your home meets all of the three criteria above, you must
provide additional fresh air.
You may provide two permanent openings: one within 12"
of the ceiling and one within 12" of the floor. Connect these
items directly to the outdoors or spaces open to the
outdoors. These spaces include attics and crawl spaces.
Follow the National Fuel Gas Code NFPA 54/ANSI Z223.1,
Section 5.3, Air for Combustion and Ventilation for required
size of ventilation grills or ducts.
IMPORTANT: Do not provide openings for inlet or outlet air
into attic if attic has a thermostat-controlled power vent.
Heated air entering the attic will activate the power vent.
Figure 2 Ventilation Air from Inside
WARNING: Air openings that provide fresh air from an adjoining
unconfined space shall not be blocked or obstructed in any way.
Installation of unit should allow a minimum of 2" clearance from
any part of the heater to any of the ventilation openings.
5
INSTALLATION
UNPACKING
Open the carton and remove the logs and the chassis.
Remove each of the logs by gripping at either end of the log
while avoidin g any undue pressure.
The carton for each model contains the following: grate/
burner assembly, front,middle and rear logs, top twig, 2
screws, 2 brackets and a bag of volcanic ash.
FIREPLACE PREPARATION
The fireplace needs to be prepared before installing the
unit:
A. Turn off the gas supply if the gas line has been run to the
fireplace.
B. WARNING: Before installing in a solid fuel burning
fireplace, the chimney flue and firebox must be
cleaned of soot, creosote, ashes and loose paint by a
qualified chimney cleaner.
? Note: If your fireplace has been cleaned using chemi-
cals or solvents, these products may have been
absorbed into the fireplace hearth and walls and will be
burned off during the initial break-in period.
C. Any outside air ducts and/or ash dumps in the fireplace
shall be permanently closed and sealed at the time of
appliance installation. This will prevent drafts from
disturbing the flames and interfering with complete
combustion of the gas fuel.
LOCATION
When gas logs are to be installed in a fireplace, inspect the
area surrounding it for possible air drafts that may affect the
flames and possibly cause sooting. Such drafts may be
caused by a ceiling fan near the fireplace, a hot air furnace
register or an open door. When burning the logs, carefully
observe the effect of possible drafts on the flames and take
appropriate measures to eliminate them. For example, the
ceiling fan may be cut off, the hot air register closed, etc.
Centrally locate the gas logs in the fireplace deep enough
into the firepit to accomplish an adequate draft (if use as a
vented appliance is planned). Ensure that the grate’s front
feet sit inside the front edge of the fireplace. Be sure
fireplace meets minimum fireplace dimensions.
To avoid any movement of the unit during operation,
screw the chassis to the floor of the fireplace using the
screws provided. Failure to do so could cause gas
leaks.
Holes are provided just behind the front grate legs, and
should be used for securement of the log set. After locating
the chassis correctly in the fireplace, mark the hole
positions on the fireplace floor. Drill two 1/8” diameter holes
approximately 1/2" deep.
Use the two screws to secure the chassis to the fireplace
floor, (see figure 3).
is inadvertently closed.
Clearances for Unvented Installation in existing
fireplaces, (jurisdiction permitting)
1. Sidewall Clearances: Clearances from the side of the
fireplace opening to any combustible wall should not be
less than 2". (see figure 4A and 4B).
2. Ceiling Clearances: The ceiling height should not be
less than 62" from the fireplace hearth. (see figure 4A).
3. Mantel Clearances: The use of a canopy* is optional
depending on mantel clearances to the fireplace opening
and projection profile. (see figure 4C and 4D).
? NOTE: Mantel clearances may differ for each vent-free
firebox. Refer to the firebox installation instructions for
clearances.
A. Mantel profile: The minimum distance above the
fireplace opening to combustible material projecting 11/2 ” (tile moldings, breast boards, etc.) is 12-1/2".
? Combustible material projecting 6" (a mantel shelf, for
example) requires a minimum clearance of 19" above
the fireplace opening. Required clearance varies with
the amount of projection, (see figure 4C).
? The mantel profile must fall within the cross -section
shown in figure 4C or 4D.
B. Heat resistant material: Any heat resistant material
suitable for a continuous operating temperature of
120°C (248°F) must cover the wall surface directly
above the fireplace openin g and extend the full width
of the fireplace opening for a distance of 10" above
the opening. (see figure 4C).
Figure 3
CHASSIS SECUREMENT
LOCATION.
CLEARANCES
NOTE: The following instructions regarding installation
clearances and the use and installation of a canopy apply to
use of the appliances as an unvented space heater in
permitting jurisdictions. When installed as a vented
decorative gas appliance, the clearances noted below and
the use of a heat -deflecting canopy are not required.
However, it is recommended that these instructions be
followed even when the appliance will be used as a vented
decorative appli ance in case local codes change to allow
unvented space heaters or in the event that the flue damper
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