Vermont Castings PH24, PH18 Appliance Installation And Operating Instructions
Unvented Gas Log Heater/ Vented Decorative
Appliance Installation and Operating Instructions
Models: PH18 (for use with PH18-R Log Sets)
PH24 (for use with PH24-R or PH30-R Log Sets)
WARNINGS
If the information in this manual is not
followed exactly, a fi re or explosion may
result causing property damage, personal
injury or loss of life.
– Do not store or use gasoline or other
fl ammable vapors and liquids in the
vicinity of this or any other appliance.
– WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do
not use any phone in your building.
• Immediately call your gas supplier
from a neighbor's phone. Follow the
gas supplier's instructions.
• If you cannot reach your gas supplier,
call the fi re department.
– Installation and service must be per-
formed by a qualifi ed installer, service
agency or the gas supplier.
This is an unvented gas-fi red heater. It uses air
(oxygen) from the room in which it is installed.
Provisions for adequate combustion and ventilation
air must be provided. Refer to page 6.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for
future reference.
65D2035 8/14 Rev. 9
PH Gas Logs
Thank you and congratulations on your purchase of an Vermont Castings Group Log Set.
PLEASE READ THE INSTALLATION AND OPERATION INSTRUCTIONS BEFORE USING THE APPLIANCE!
IMPORTANT: Read all instructions and warnings carefully before starting installation.
Failure to follow these instructions may result in a possible fi re hazard and will void the warranty.
CONTENTS
Carbon Monoxide Warning ........................................ 2
Important Safety Information ....................................3
Codes ..................................................................... 4
Product Features ........................................................ 5
Gas Specifi cations .................................................5
Gas Pressures ....................................................... 5
Ignition Controls .....................................................5
Pilot/ODS ............................................................... 5
Thermal Generator ................................................. 5
Getting Started ............................................................ 6
Fireplace and Hearth Dimensions............................. 7
Placement in a Fireplace with Restrictive Barrier ... 7
Clearances and Height Requirements ...................... 8
Installation Requirements.......................................... 9
Installation ..................................................................11
Installing Vented Applications ...............................11
Damper Stop Installation .......................................11
Place and Secure Appliance .................................11
Assembly Procedure ............................................ 12
Gas Line Connection ................................................ 12
Check Gas Pressure................................................. 13
Manual Control ..................................................... 13
Millivolt Control ..................................................... 13
Electrical Wiring - Millivolt ....................................... 14
Optional Wall Switch or Thermostat ..................... 14
Optional Remote Receiver ................................... 15
Check System Operation ..................................... 15
Log Placement .......................................................... 16
PH18-R ................................................................ 16
PH24-R ................................................................ 18
PH30-R ................................................................ 20
Flame Appearance .................................................... 22
Millivolt Control ..................................................... 22
Manual Control ..................................................... 22
Burner Flame ....................................................... 23
Operating Instructions ............................................. 24
For Your Safety Read Before Lighting ................. 25
Manual Control Lighting Instructions .................... 26
Millivolt Control Lighting Instructions .................... 27
Match Lighting Instructions .................................. 28
Cleaning and Servicing ............................................ 28
Troubleshooting .......................................................29
Illustrated Parts Breakdown .................................... 32
Replacement Parts ................................................... 31
Burner Assembly .................................................. 31
Accessories .......................................................... 32
Logs ..................................................................... 33
Massachusetts Residents Only............................... 34
Warranty .................................................................... 35
CARBON MONOXIDE POISONING: Early signs of carbon monoxide poisoning are similar to the fl u with
headaches, dizziness and/or nausea. If you have these signs, the insert may not have been installed
properly . Get fresh air at once! Have the insert inspected and serviced by a qualifi ed service person. Some
people are more affected by carbon monoxide than others. These include pregnant women, people with
heart or lung disease or anemia, those under the infl uence of alcohol, and those at high altitudes.
Propane/LP gas and natural gas are both odorless. An odor-making agent is added to each of these gases.
The odor helps you detect a gas leak. However, the odor added to these gases can fade. Gas may be
present even though no odor exists.
2
65D2035
IMPORTANT SAFETY INFORMATION
PH Gas Logs
INSTALLER
Please leave these instructions with the appliance.
OWNER
Please retain these instructions for future reference
• Any change to this heater or its controls can be dangerous.
• Improper installation or use of the heater can cause serious injury or death from fi re, burns,
explosion or carbon monoxide poisoning.
• Do not allow fans to blow directly into the fi replace. Avoid any drafts that alter burner fl ame
patterns.
WARNING
• Do not use a blower insert, heat exchanger insert or other accessory, not approved for use
with this heater where applicable.
1. Due to high temperatures, the appliance should be
located out of traffi c and away from furniture and
draperies.
2. Children and adults should be alerted to the hazard
of high surface temperature and should stay away to
avoid burns or clothing ignition.
3. Young children should be carefully supervised when
they are in the same room with the appliance.
4. Do not place clothing or other fl ammable material on
or near the appliance.
5. Any safety screen or guard removed for servicing an
appliance, must be replaced prior to operating the
heater.
6. Installation and repair should be done by a qualifi ed
service person.
7. To prevent malfunction and/or sooting, an unvented
gas heater should be cleaned 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 control compartments, burners and circulating air
passageways be kept clean.
8. For propane/LP insert, do not place propane/LP supply
tank(s) inside any structure. Locate propane/LP supply
tank(s) outdoors. To prevent performance problems,
do not use propane/LP fuel tank of less than 100
lbs. capacity.
9. The installation must conform with local codes or, in the
absence of local codes, with the National Fuel Gas
Code, ANSI Z223.l/NFPA54.
10. This unit complies with ANSI Z21.11 Unvented Heaters, latest edition and also complies with ANSI Z21.60
Decorative Vented Appliances for Solid Fuel Burning
Fireplaces, latest edition. State and local codes may
only allow operation of this appliance in a vented
confi guration. Check your state or local codes. For
vented operation, refer to Vented Instructions in this
manual.
11. Do not install the heaters in a bathroom or bedroom.
12. Correct installation of the ceramic fi ber logs, proper
location of the heater, and annual cleaning are necessary to avoid potential problems with sooting. Sooting,
resulting from improper installation or operation, can
settle on surfaces outside the fi replace. See log place-
ment instructions for proper installation.
13. Avoid any drafts that alter burner fl ame patterns. Do not
allow fans to blow directly into fi replace. Do not place
a blower inside burn area of fi rebox. Ceiling fans may
create drafts that alter burner fl ame patterns. Sooting
and improper burning will occur.
14. CAUTION: Candles, incense, oil lamps, etc. produce
combustion by-products including soot. Vent-free
appliances will not fi lter or clean soot produced by
these types of products. In addition, the smoke and/or
aromatics (scents) may be reburnt in the vent-free appliance which can produce odors. It is recommended
to minimize the use of candles, incense, etc. while the
vent-free appliance is in operation.
15. This is an unvented gas-fi red heater. It uses air (oxy-
gen) from the room in which it is installed. Provisions
for adequate combustion and ventilation air must be
provided. Refer to Page 6.
16. This heater shall not be installed in a room or space
unless the required volume of indoor combustion air is
provided by the method described in the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, the International
Fuel Gas Code or applicable local codes.
17. Keep room area clear and free from combustible
materials, gasoline and other fl ammable vapors and
liquids.
18. Unvented gas heaters are a supplemental zone heater.
They are not intended to be a primary heating appliance. Water vapor produced by an unvented heater
can create moisture problems in a home when operated for extended periods of time.
19. During manufacturing, fabricating and shipping, various
components of this appliance are treated with certain
oils, fi lms or bonding agents. These chemicals are not
harmful but may produce annoying smoke and smells
.
65D2035
3
PH Gas Logs
as they are burned off during the initial operation of the
appliance; possibly causing headaches or eye or lung
irritation. This is a normal and temporary occurrence.
The initial break-in operation should last two to three
hours with the burner at the highest setting. Provide
maximum ventilation by opening windows or doors to
allow odors to dissipate. Any odors remaining after this
initial break-in period will be slight and will disappear
with continued use.
20. Input ratings are shown in BTU per hour and are for
elevations up to 2,000 feet. For elevations above 2,000
feet, input ratings should be reduced 4 percent for each
1,000 feet above sea level. See the National Fuel Gas
Code.
21. The heater 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).
22. The heater 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 1/2 psig
(3.5 kPa).
23. Do not use this room heater if any part has been under
water. Immediately call a qualifi ed service technician
to inspect the room heater and to replace any part
of the control system and any gas control which has
been under water.
24. This appliance must not be used with glass doors in
the closed position. This can lead to pilot outages and
severe sooting outside the fi replace.
25. Never burn solid fuels in a fi replace where an unvented
room heater is installed.
26. Always have a fi replace screen in place when the ap-
pliance is in operation and , unless other provisions for
combustion air are provided, the screen shall have an
opening(s) for induction of combustion air.
IMPORTANT SAFETY INFORMATION
Never connect unit to private (non-utility)
gas wells. This gas is commonly known
as wellhead gas.
WARNING
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 with other gases.
CODES
Adhere to all local codes or, in their absence, the latest
edition of THE NA TIONAL FUEL GAS CODE ANSI Z223.1
or NFPA54 which can be obtained from…
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
or
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
4
Attention Massachusetts Residents:
This product must be installed by a licensed gas
fi tter.
65D2035
PRODUCT FEATURES
PH Gas Logs
GAS SPECIFICATIONS
Min.Input Max. Input
Model Fuel Control BTU/h BTU/h
PH18NM Nat. Manual 18,000 30,000
PH18NV Nat. Millivolt 26,000 30,000
PH24NM Nat. Manual 19,000 36,000
PH24NV Nat. Millivolt 24,000 36,000
PH18PM LP Manual 22,500 30,000
PH18PV LP Millivolt 24,500 30,000
PH24PM LP Manual 25,000 36,000
PH24PV LP Millivolt 29,000 36,000
GAS PRESSURES
Natural Propane (LP)
Manual Regulator Pressure 4.0" w.c. 10.0" w.c.
Millivolt Regulator Pressure 3.5" w.c. 10.0" w.c.
Millivolt Pilot Regulator 3.5" w.c. n/a
Max. Gas Inlet Pressure 10.5" w.c. 13.0" w.c.
Min. Gas Inlet Pressure 5.0" w.c. 11.0" w.c.
NOTE: An external regulator is required to reduce supply
pressure to a maximum of 13.0" w.c. for LP systems.
IGNITION CONTROLS
Piezo ignitor allows ignition of the pilot without the
use of matches or batteries.
Manual control has three (3) positions:
OFF - All gas to the gas logs is shut off at
the valve.
IGN - Valve position to light/maintain a
standing pilot.
HI/LOW - Variable position corresponding to
desired fl ame height.
Millivolt control has four (4) positions:
OFF - All gas to the gas logs is shut off at
the valve.
IGN - Valve position to light/maintain a
standing pilot.
ON - Valve position to turn ON/OFF log
set with remote switch/thermostat.
HI/LO - Variable position to control fl ame
height (heat output).
PILOT/ODS
The gas log heater is fi tted with a specially designed
safety pilot (ODS assembly) which senses the amount
of oxygen available in the room and shuts the gas log
heater off if the oxygen level begins to drop below
a satisfactory level. The pilot can only be relit when
adequate fresh air is available.
65D2035
THERMAL GENERATOR
The millivolt gas log pilot is fi tted with a millivolt
(thermopile) generator to provide power for remote
activation.
5
PH Gas Logs
GETTING STARTED
• Handle the gas log burner assembly by
the burner only. Do not pick the unit up
by the burners or grate (not attached to
frame).
• Gloves are recommended when handling
ceramic fi ber logs to prevent skin irritation
CAUTION
from loose fibers. Logs are fragile —
handle with care.
MAKE SURE YOU HAVE RECEIVED ALL PARTS:
Check your packing list to verify that all listed parts have
been received. You should have the following:
• Unvented gas log burner assembly
• Plastic bag containing crushed volcanic rock
• Installation/operating instructions
• Two (2) anchoring screws
• Grate
• Ceramic fi ber or refractory cement logs
The millivolt controlled version of this heater is the only
style designed to be operated with optional devices for
ON/OFF functions. The following options may be used
with the millivolt controlled heater. These options are not
packaged with the log set.
• Hand held Remote with receiver
• Wall thermostat with 15' wire
• Wall switch with 15' wire
• Hand held Thermostat Remote with receiver
Carefully inspect the contents for shipping damage. If any
parts are missing or damaged, immediately inform the
dealer from whom you purchased the appliance. Do not
attempt to install any part of the appliance unless you
have all parts in good condition.
WHAT YOU WILL NEED FOR INSTALLATION:
You should have the following items available before proceeding with installation:
• External regulator (for propane/LPG and 1/2 lb.
natural gas systems only)
• Piping which complies with local codes
• Sediment trap (recommended)
• Screwdriver
• Tee joint.
• Pipe sealant approved for use with propane/LPG
(Resistant to sulfur compounds)
• Drill with 5/32 bit
• Pipe wrench or appropriate size crescent wrench
set
• Manual shutoff valve
If the area in which the heater may be
operated does not meet the required volume
for indoor combustion air, combustion and
ventilation air shall be provided by one
of the methods described in the National
Fuel Gas Code, ANSI Z223.1/NFPA 54, the
WARNING
International Fuel Gas Code or applicable
local codes.
6
65D2035
FIREPLACE and HEARTH DIMENSIONS
PH Gas Logs
This appliance is for installation only in a solid-fuel burning masonry or UL127 factory-built
fi replace, vent free appliance, or in listed ventless fi rebox enclosure. It has been design certifi ed
for these installations.
Exception: DO NOT install this appliance in a factory-built fi replace that includes instructions
WARNING
stating it has not been tested or should not be used with unvented gas logs.
Use manufacturer’s installation and clearance requirements as defi ned in their manual.
The PH Series unvented room heater is approved for installation into the following unvented fi replaces:
GCUF(32,36,42) and VFR(32,36,42) Series Fireboxes
The PH Series unvented room heater may also be installed
into a Ventless Firebox Enclosure for Gas Fired Decorative
Type Unvented Room Heaters per ANSI Z21.91b.2004,
as long as fi rebox hearth dimensions meet the minimum
hearth dimensions shown below.
C
D
A
B
FP2530
MODEL A B C D
1
PH18 25"
(635 mm)
PH24 29"
(737 mm)
PH30 35"
(889 mm)
Figure 1 Hearth Minimum Dimensions
(330 mm)
(330 mm)
(330 mm)
13"
13"
13"
⁄2"
17
(445 mm)
191⁄2"
(495 mm)
1
⁄2"
25
(648 mm)
17"
(432 mm)
17"
(432 mm)
17"
(432 mm)
Barriers such as the bottom of a glass door
frame placed in front of a gas log set can
change the air fl ow characteristics of the
fi replace which in turn can cause the unit
WARNING
to overheat and malfunction.
IMPORTANT INFORMATION FOR THE INSTALLATION OF THIS GAS LOG SET
The following are guidelines for placing a gas log set in
a fi replace that has a restrictive barrier along the bottom
front opening of the fi replace. Some examples of barri-
ers are glass/screen door frames and sunken/recessed
fi replaces.
Height of Minimum Depth of
Restriction (x) Fireplace/Firebox
No Restriction 13"
0" to 11⁄2" 16"
Greater than 11⁄2" to 3" 16"
Greater than 3" *
*Any barrier greater than 3" placed in front of the gas log
set is not recommended by the manufacturer.
NOTE: Non combustible material such as refractory brick
may be used to line the fl oor of the fi replace in order to raise
the height of the gas log set in relation to a restrictive barrier.
If the unit is raised, the minimum height dimension listed in
the homeowner’s manual must not be exceeded.
NOTE: If the log set is equipped with a remote receiver, a
restrictive barrier may reduce the battery life by increasing
the ambient temperature inside the fi replace. Placement
of the receiver outside of the fi replace will extend the
battery life.
The log set should
be placed against or
as near as possible
Glass door
frames with adjustable louvers
should have
the louvers
fully open while
the unit is in
operation
X
Height of restrictive barrier
caused by glass door
frames, recessed fi replac-
es, etc. from the base or
bottom surface of the unit.
(Refer to Table).
Figure 2 Reference Drawing of a Natural
Flame Log Set in an Enclosure
to the rear wall of the
fi replace
Depth of
Fireplace/
Firebox
(Refer to
Table)
FP2794
65D2035
7
PH Gas Logs
CLEARANCES AND HEIGHT REQUIREMENTS
The dimensions shown in Figures 3 through 11 and defi ned in the fi replace manufacturer's
instructions are minimum clearances to maintain when installing this heater. Left and right
clearances are determined when facing the front of the heater.
When heater is installed into a ventless fi rebox, minimum clearances, as specifi ed by the ventless
fi rebox manufacturer, must be met.
WARNING
Follow these instructions carefully to ensure safe installation. Failure to follow instructions
exactly can create a fi re hazard.
Sidewall and ceiling clearances: The sides of the fi re-
place opening must be at least 16" from any combustible
wall. The ceiling must be at least 42" from the top of the
fi replace opening.
Heat
Resistant
Material
Measure This
Distance
42"
16"
FP1996
Figure 3 Sidewall and Ceiling Clearances
Heat resistant material (minimum requirements)
with no wooden mantel or other combustible
projection:
To install the gas logs into a fi replace with no wooden
mantel, shelf or other combustible projection above the
fi replace opening, measure the heat resistant material
height, per Figure 4, then see T ABLE A.
Heat resistant materials such as slate and marble must be
at least 1/2" thick. Sheet metal should not be installed
onto combustible material.
Heater in
Fireplace or
Firebox
Figure 4 Measure Heat Resistant Material
FP2922
Table A Heat Resistant Material Requirements with No
Mantel or Combustible Projection
Heat Resistant Material PH18/24 Requirements
Measurement for Safe Installation
12" or more Hood not required
8" or less than 12" Extend resistant material to
12" or install hood. Figure 5
Less than 8" Extend heat resistant material
to at least 8" and install hood.
Figure 5. OR, extend heat
resistant material to a height
of at least 12"
IMPORTANT: If you cannot meet these minimum clearances you must operate the heater with chimney fl ue
damper open. Refer to "Installing Vented Applications"
found on Page 14.
8
65D2035
INSTALLATION REQUIREMENTS
10"
8"
6"
256O"
8" 1456O" 186" 2256O" 26"
12"
12”
Min.
28”
10” or Less
PH Gas Logs
8" or More of Heat
Resistant Material
Hood
Heater in
Fireplace or
Figrebox
FP2923
Figure 5 Measure Heat Resistant Material for Mantel
Heat resistant material (minimum requirements) with
wooden mantel or other combustible projection:
To install the heater with a wooden mantel, shelf or other
combustible projection above, fi rst measure the heat resis-
tant material shown in Figure 6, then see TABLE B.
Heat
Resistant
Material
Hood
Heater in
Fireplace or
Firebox
FP2534
Figure 6 Minimum Mantel Clearance with Hood
Example: A mantel may project from the wall a maximum
of 21⁄2" at a minimum of 8" above the opening
and a maximum of 6" at a minimum of 141⁄2"
above the opening.
Table B Heat Resistant Material Heights and Mantel Location
Requirements for Safe
Heat Resistant
Material
Measurement
Installation with Wooden Mantel,
Shelf or Other Combustible
Projection
12" or more Hood not required. Observe
profi les (side elevations) shown in
Figure 7
8" or less than
12"
Install hood (CABR/CABL) and
observe profi les show in Figure 6;
OR extend heat resistant material
to at least 12" and observe profi les
shown in Figure 7
Less than 8" Extend heat resistant material to
at least 8" and install hood (CABR/
CABL) and observe profi les
shown in Figure 6; OR extend
heat resistant material to at least
12" and observe profi les shown in
Figure 7.
Heat
Resistant
Material
Heater in
Fireplace or
Firebox
Figure 7 Minimum Mantel Clearance with No Hood
FP2535
Example: The bottom of the mantel may project from the
wall a maximum of 10" at a minimum of 28"
above the opening.
65D2035
9
PH Gas Logs
FLOOR CLEARANCE
The gas log heater must be installed at least 5" above
any combustible fl ooring material, such as carpeting or
tile, which is closer than 14" to the base of the fi replace.
The minimum distance must be maintained from the top
surface of carpeting, tile, etc. Figure 8
OR,
FP2924
The gas log heater may be installed nearer to the fl oor if a
minimum of 14" of noncombustible material such as slate
or marble is installed between the base of the fi replace and
the combustible fl ooring. Figure 9
Heater in Fireplace
or Firebox
Combustible
Material
5” Minimum
Figure 8 Minimum Clearance Above Combustible Flooring
Heater in
Fireplace or
This
Distance
May Now
be Less
than 5"
FP2925
Firebox
Combustible
Material
14” Minimum
Figure 9 Minimum Clearance Above Combustible Flooring with
Noncombustible Material Installed at Base of Fireplace
10
65D2035
INSTALLATION
PH Gas Logs
BEFORE FULLY INSTALLING THE UNIT:
•
Turn OFF the gas supply to the fi replace or fi re-
box.
• Seal any fresh air vents and/or ash clean-out doors
located on the fl oor or wall of the fi replace. If left
unsealed, drafting may cause pilot outage or sooting. Use a heat resistant sealant. Do not seal the
chimney fl ue damper.
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
WARNING
cleaner.
INSTALLING VENTED APPLICATIONS
Manual and millivolt controlled gas logs may be installed as
a vented decorative log set in compliance with ANSI Z21.60
and National Fuel Gas Code, Section 6.6 Since, the gas
logs are operated with the damper open, non-combustible
material and minimum mantel requirements do not apply.
DAMPER STOP INSTALLATION:
A damper stop must be provided with the unit. Contact your
dealer to obtain one. The damper stop must be installed as
shown in Figure 10 to prevent full closure of the fi replace
damper blade and provide a minimum 29 square inch fl ue
opening.
Damper
Stop
Damper
FP2538
Figure 10 Damper Stop Installation
(See Warning)
This appliance is for installation only in a solid
fuel burning fi replace (masonry fi replace or
manufactured fireplace) with a working
fl ue and constructed of noncombustible
material.
Exception: DO NOT install this appliance
in a factory-built fireplace that includes
WARNING
instructions stating that it has not been
tested or should not be used with unvented
gas logs. This log set may be installed as a
vented log set.
BEFORE INSTALLING THE APPLIANCE:
• Turn off gas supply to fi replace or fi rebox.
• Have the fi replace fl oor and chimney professionally
cleaned to remove ashes, soot, creosote or other
obstructions. Have this cleaning performed annually
after installation.
• Seal any fresh air vents or ash clean-out doors lo-
cated on fl oor or wall of fi replace. If not, drafting may
cause pilot outage or sooting. Use a heat-resistant
sealant. Do not seal chimney fl ue damper.
Install and operate the appliance as directed in this
manual.
The fi replace and gas logs function as a
system. If the fi replace is spilling into the
room (check with a match or a smoke stick),
reposition the damper clamp until a positive
draft is obtained by opening the damper. If
negative pressure in home prevents having
WARNING
a positive draft, contact your dealer for
assistance.
PLACE AND SECURE APPLIANCE
You must secure the gas log heater to
the fi replace fl oor. If not, the entire unit
may move when you adjust the controls.
Movement of unit may cause shifting of
the gas logs which leads to sooting and
improper burning.
Special care is required if you are installing
the unit into a sunken fi replace. You must
raise the fi replace fl oor to allow access to
WARNING
gas log controls. This will insure adequate
air fl ow and guard against sooting. Raise
the fi replace fl oor using noncombustible
materials, as described in Placement in a
Fireplace with Restrictive Barrier on Page
7.
65D2035
11
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