HOMEOWNER'S CARE AND
OPERATION INSTRUCTIONS
B-VENT
GHC/GRD-5500 SERIES
B-VENTED GAS FIREPLACES
P/N 725,029M REV. C 07/2004
MODELS
Millivolt
Electronic
Models
GHC-5500N
GHC-5500P
GRD-5500N
GRD-5500P
Models
GHC-5500NE-2
GHC-5500PE-2
GRD-5500NE-2
GRD-5500PE-2
GRD-5500 SHOWN
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
AVERTISSEMENT: ASSUREZ-VOUS DE BIEN SUIVRE
LESINSTRUCTIONSDONNÉDANSCETTENOTICEPOUR
RÉDUIRE AU MINIMUM LE RISQUE D'INCENDIE OU
POUR ÉVITER TOUT DOMMAGE MATÉRIEL, TOUTE
BLESSURE OU LA MORT.
WH Report No. J20046562
WARNING:IFTHEINFORMATIONINTHISMANUAL
IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLO-
SION MAY RESULT CAUSING PROPERTY DAM-
AGE, PERSONAL INJURY OR LOSS OF LIFE.
POURVOTRESÉCURITÉ: Nepasentreposerniutiliser
d'essencenid'autrevaperursouliquidesinflammables
dans le voisinage de cet appareil ou de tout autre
appareil.
FOR YOUR SAFETY: Do not store or use gasoline
or other flammable vapors or liquids in the vicin-
ity of this or any other appliance.
POUR VOTRE SÉCURITÉ: Que faire si vous sentez une
odeur de gaz:
FOR YOUR SAFETY: What to do if you smell gas:
• Ne pas tenter d'allumer d'appareil.
• Netouchezàaucuninterrupteur. Nepasvousservir
des téléphones se trouvant dans le batiment où
vous vous trouvez.
• Evacuez la piéce, le bâtiment ou la zone.
• Appeflez immédiatement votre fournisseur de gaz
depuis un voisin. Suivez les instructions du
fournisseur.
• DO NOT light any appliance.
• DO NOT touch any electrical switches.
• DO NOT use any phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone.
Follow your gas suppliers instructions.
• Ifyourgassuppliercannotbereached, callthe
fire department.
• Si vous ne pouvez rejoindre le fournisseur de gaz,
appelez le service dos incendies.
Installation and service must be performed by a
qualified installer, service agency or the gas
supplier.
L'installationetservicedoitêtreexécutéparunqualifié
installer, agence de service ou le fournisseur de gaz.
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Millivolt appliances may be fitted at time of
manufacture with either a Robertshaw millivolt
gascontrolvalveorRobertshawelectronic gas
control valve. Both valves have been tested
with and approved for use with these appli-
ances and are listed accordingly.
WARNING: B-VENTAPPLIANCESARENOT
DESIGNED TO OPERATE IN NEGATIVELY
PRESSUREDENVIRONMENTS(PRESSURE
WITHIN THE HOME IS LESS THAN PRES-
SURES OUTSIDE). SIGNIFICANT NEGA-
TIVELY PRESSURED ENVIRONMENTS
CAUSED BY WEATHER, HOME DESIGN,
OR OTHER DEVICES MAY IMPACT THE
OPERATION OF THESE APPLIANCES.
NEGATIVE PRESSURES MAY RESULT IN
POOR FLAME APPEARANCE, SOOTING,
DAMAGE TO PROPERTY AND/OR SEVERE
PERSONAL INJURY. DO NOT OPERATE
THESEAPPLIANCESINNEGATIVELYPRES-
SURED ENVIRONMENTS.
A ¹⁄₈" NPT test gage connection is provided on
either gascontrolvalveadjacenttotheoutletto
the main burner.
Piezo
Ignitor
Minimum inlet gas pressure to the appliance is
4.5 inches water column (8.55 MmHg) for
naturalgasand11incheswatercolumn(20.55
MmHg) for propane for the purpose of input
adjustment.
Millivolt
Gas Valve
Figure 1
Control Compartment Access - GRD-5500
Units
Maximum inlet gas supply pressure to the
appliance is 10.5 inches water column (19.95
MmHg) for natural gas and 13.0 inches water
column (24.25 MmHg) for propane.
WARNING: CHILDREN AND ADULTS
SHOULD BE ALERTED TO THE HAZARDS
OFHIGHSURFACETEMPERATURES.USE
CAUTION AROUND THE APPLIANCE TO
AVOID BURNS OR CLOTHING IGNITION.
YOUNG CHILDREN SHOULD BE CARE-
FULLY SUPERVISED WHEN THEY ARE IN
THE SAME ROOM AS THE APPLIANCE.
The lower control compartment access panel
has been designed to cover the control com-
partment from view. Lighting instructions are
displayed on the back side of the cover for easy
reference. To attach the panel to the appliance,
hook both ends of the panel over the two
brackets mounted on each side of the front
combustion opening. The cover should hang
from the brackets with the flared edge at the
bottom allowing for a small air gap between the
cover and the appliance. To remove, lift the
panel and pull away from the unit.
The appliance must be isolated from the gas
supply piping system (by closing its individual
manualshut-offvalve)duringanypressuretest-
ing of the gas supply piping system at test
pressures equal to or less than ¹⁄₂psig (3.5 kPa).
The appliance and its individual shut-off valve
must be disconnected from the gas supply
piping system during any pressure testing of
that system at pressures in excess of ¹⁄₂ psig
(3.5 kPa).
WARNING: DO NOT PLACE CLOTHING
OR OTHER FLAMMABLE MATERIALS
ON OR NEAR THIS APPLIANCE.
ControlCompartmentAccess-GHC-5500Units
The GHC lower control compartment access is
provided by removing the three louvers .
These appliances must not be connected to a
chimney or flue serving a separate solid fuel
burning appliance.
AVERTISSEMENT: SURVEILLER LES
ENFANTS. GARDER LES VÊTEMENTS,
LES MEUBLES, L'ESSENCE OU AUTRES
LIQUIDES À VAPEUR INFLAMMABLES
LIN DE L'APPAREIL.
To remove the louvers, pull them straight out
from the unit. To replace, tilt each of them with
the top edge over the top of each peg and snap
the lower edge to lock in place. See Figure 2.
WARNING: FAILURE TO COMPLY WITH
THEINSTALLATIONANDOPERATINGIN-
STRUCTIONS PROVIDED IN THIS DOCU-
MENTWILLRESULTINANIMPROPERLY
INSTALLED AND OPERATING APPLI-
ANCE, VOIDING ITS WARRANTY. ANY
CHANGE TO THIS APPLIANCE AND/OR
ITS OPERATING CONTROLS IS DANGER-
OUS. IMPROPERINSTALLATIONORUSE
OF THIS APPLIANCE CAN CAUSE SERI-
OUS INJURY OR DEATH FORM FIRE,
BURNS, EXPLOSION OR CARBON MON-
OXIDE POISONING.
OPERATION AND CARE OF YOUR
APPLIANCE
Applianceoperationmustbecontrolledthrough
a remotely located wall switch (factory-sup-
plied). Separate switches may provide inde-
pendent control for the remote controlled fire-
place operation (optional equipment).
Gas Controls/Control Compartment
Access
Louver
Pegs
Carbon Monoxide Poisoning: Early signs of
carbon monoxide poisoning are similar to
the flu with headaches, dizziness and/or
nausea. If you have these signs, obtain fresh
air immediately. Turn off the gas supply to
the appliance and have it serviced by a
qualified professional, as it may not be op-
erating correctly.
Louvers
See Figure 1 for the location of the gas control
valve and piezo ignitor (millivolt units).
GHC-5500
Figure 2
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
3
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AVERTISSEMENT: POUR UTILISATION
UNIQUEMENT AVEC LES PORTES EN
VERRE CERTIFIÊES AVEC L'APPAREIL.
ON/OFF SWITCH
CONTROL KNOB
P
C
M
MILLIVOLT GAS CONTROL VALVE
ELECTRONIC GAS CONTROL VALVE
Figure 4
Figure 3
Glass Doors
Fully Open or
Fully Closed
(Bi-Fold Doors)
Operation of millivolt and electronic gas con-
trol systems are different. Before lighting and
operatingyourappliancedetermineifyouhave
a millivolt or electronic appliance. Millivolt
appliances will be fitted with the gas control
valve shown in Figure 3. Appliances with
electronic systems will be fitted with the elec-
tronic valve shown in Figure 4. Familiarize
yourself with the differing controls for the
valve your appliance uses.
2. Keep lower control compartment clean by
vacuuming or brushing at least twice a year.
More frequent cleaning may be required due
to excessive lint from carpeting, bedding ma-
terials, etc. It is important that control com-
partments, burners and circulating air pas-
sageways of the appliance be kept clean.
Figure 5
Outside Combustion Air Controls
Appliances may be installed with an outside
(make-up air) vent system that is designed to
provide the appliance with outside make-up
air for combustion when in operation. The
shut-off lever for the outside air system is
standard on all appliances but should not be
operated if the complete system is not in-
stalled. Refer to Figure 6 for GHC/GRD-5500
series units.
3. Always turn off gas to the pilot (millivolt
appliances)beforecleaning. Beforere-lighting,
refer to the lighting instructions in this manual.
Appliance lighting instructions may also be
found on the pull-out label located near the
gas valve in the control compartment.
Millivolt Appliance Lighting
To light millivolt appliances refer to the de-
tailed lighting instructions found in both En-
glish and French on pages 10 and 11 of these
instructions respectively. Appliance lighting
instructions may also be found on the pull-
out label located near the gas valve in the
control compartment. Refer to Figure 1 for
the piezo ignitor location used with your
appliance.
4. Always keep the appliance area clear and
free from combustible materials, gasoline and
other flammable liquids.
The hand operated shut-off lever is located in the
left side of the fireplace opening behind the
screen. To open, pull all the way. The outside air
damper should be fully open when the fireplace
is in use and completely closed when the fire-
place is not being used. This will prevent outside
cold air from entering the dwelling.
5. Remember, Millivolt appliances have a con-
tinuous burning pilot flame. Exercise caution
when using products with combustible vapors.
6. Clean the optional glass doors only when
necessary. Wipe surface with clean, damp-
ened, soft cloth. Follow with dry, soft towel as
desired. Take care not to scratch the glass
surface.
Your appliance comes supplied with remote
wall switch or can be used with an optional
remote control kit. The appliance main burner
may be turned on and off with the wall switch
or remote control.
WARNING: DO NOT OPERATE THE
SHUTOFF LEVER UNLESS A COMPLETE
OUTSIDE AIR VENT SYSTEM HAS BEEN
INSTALLED WITH YOUR APPLIANCE.
Electronic Appliance Lighting
WARNING: DO NOT USE ABRASIVE
CLEANERS. NEVER CLEAN THE GLASS
WHEN IT IS HOT.
To light electronic appliances refer to the de-
tailed lighting instructions found in both En-
glish and French on pages 12 and 13 of these
instructions respectively. Appliance lighting
instructions may also be found on the pull-
out label located near the gas valve in the
control compartment.
CAUTION: DO NOT ATTEMPT TO TOUCH THE
DOORSWITHYOURHANDSWHILETHEFIRE-
PLACE IS IN USE. ALWAYS USE DOOR
HANDLES. DOORS WILL BECOME VERY HOT
WHEN FIREPLACE IS IN USE.
Your appliance comes supplied with remote
wall switch or can be used with an optional
remote control kit. The appliance main burner
may be turned on and off with the wall switch
or remote control.
WARNING: FIREPLACES EQUIPPED
WITH OPTIONAL ACCESSORY DOORS
SHOULD BE OPERATED ONLY WITH THE
DOORSFULLYOPENORFULLYCLOSED
(FIGURE 5 ). THIS APPLIANCE MAY
ONLY BE FITTED WITH DOORS CERTI-
FIED FOR USE WITH THE APPLIANCE.
Combustion Air Control Lever
1. When lit for the first time, this appliance will
emit a slight odor for an hour or two. This is
due to the “burn-in” of internal paints and
lubricants used in the manufacturing process.
Combustion Air Control Lever
on GHC/GRD-5500 Series Units
Figure 6
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
4
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Maintenance
Manual Reset Limit Switch
The appliance and venting system should be
thoroughly inspected before initial use and at
least annually by a qualified service techni-
cian. Proper maintenance and use will require
more frequent, less extensive inspections and
servicing by the homeowner.
Generally, annual inspections should be per-
formedbyaqualifiedservicetechnician. More
frequent periodic inspections and cleanings
should be performed by the homeowner. Any
discrepancies discovered by the homeowner
should result in a call to a qualified service
technician to effect the repair or correction.
Lintel
Extention
Refer to the maintenance schedule for mainte-
nance tasks, procedures, periodicity and by
whom they should be performed.
Firebox Wrapper
Limit Switch Screws
IMPORTANT: TURNOFFGASANDANYELEC-
TRICAL POWER BEFORE SERVICING THE
APPLIANCE.
Figure 7
Adjustment
If the air shutter opening is too small sooting
may develop. Sooting is indicated by black
puffsdevelopingatthetipsofverylongorange
flames. Sootingresultsinblackdepositsform-
ing on the logs, appliance inside surfaces and
onexteriorsurfacesadjacenttotheventtermi-
nation. Sooting is caused by incomplete com-
bustion in the flames and a lack of combustion
air entering the air shutter opening.
MANUALLY-RESET BLOCKED FLUE SAFETY
SWITCH
To adjust the flame, position the air shutter to
the nominal setting (Figure 8 ). Allow the
burner to operate for at least 30 minutes.
Observe the flame continuously. If it appears
weak or sooty as previously described, adjust
the air shutter open or closed until desired
effect is achieved.
This appliance is equipped with a manually-
reset blocked flue safety switch. Refer to
Figure 7 for its location. If during appliance
operation, the flame goes out (independently
of the burner on/off wall switch), it may be due
to the operation of this safety limit switch.
First allow the appliance to cool. Then reset
the safety switch by pushing the red reset
button on the back of the switch.
To achieve a warm yellow to orange flame with
an orange body that does not soot, the shutter
opening must be adjusted between these two
extremes.
Orifice
CAUTION: THE ELECTRONIC APPLIANCE
SHOULD BE TURNED OFF BEFORE REMOV-
ING THE LIMIT SWITCH.
Air Shutter
No smoke or soot should be present. Reposi-
tion the log set if the flames impinge on any of
them.
Adjusting
Set Screw
To access the safety limit switch reset button,
remove the two screws. Pull out limit switch
withlowvoltagewiresattached, pushthereset
button, then reinstall the limit switch. At this
time turn the electronic appliance back on.
If sooting conditions exist, the air shutter
opening on the main burner can be adjusted.
Normally, the more offsets in the vent system,
the greater the need for the air shutter to be
opened further.
Burner Tube
The appliance should then relight and remain
lit. If this does not occur, turn off the appli-
ance and call a qualified service technician.
Nominal Air Shutter Settings:
Natural Gas - Closed
Propane Gas - 1/6 in. (1.59 mm) Open
WARNING: AIR SHUTTER ADJUSTMENT
SHOULD ONLY BE PERFORMED BY A
QUALIFIED PROFESSIONAL SERVICE
TECHNICIAN.
Burner Adjustments
Figure 8
Flame Appearance and Sooting
Proper flame appearance is a matter of taste.
Generally most people prefer the warm glow of
a yellow to orange flame. Appliances operated
with air shutter openings that are too large, or
with long vertical vent runs, will exhibit flames
that are blue and transparent. These weak, blue
and transparent flames are termed anemic.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
5
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Maintenance Schedule
Annually (Before the onset of the Burning Season)
Maintenance Task
Accomplishing Person
Procedure
Inspecting/Cleaning Burner, Logs
and Controls
Qualified Service Technician
Inspect valve and ensure it is properly operat-
ing. Check piping for leaks. Vacuum the
controlcompartment,fireplacelogsandburner
area.
Check Flame Patterns and Flame Height
Inspecting/Cleaning Pilot and Burner
Qualified Service Technician
Qualified Service Technician
Refer to Figure 10 on page 7 and verify the
flame pattern and height displayed by the
appliance conforms to the picture.
Refer to Figure 11 on page 7. Remove any
surface build-up on pilot and burner assem-
bly. Wipe the pilot nozzles, ignitor/flame rod
and hood. Ensure the pilot flame engulfs the
flame sensor as shown.
Checking Vent System
Qualified Service Technician
Inspect the vent system at the top and at the
base (within the firebox) for signs of blockage
or obstruction. Look for any signs of disloca-
tion of the vent components.
Appliance Checkout
Qualified Service Technician
Perform the appropriate appliance checkout
procedure detailed in this manual.
Replacing Rockwool Ember Materials
Homeowner/Qualified Services Technician
Remove old ember materials and vacuum the
rockwoolplacementarea. Placenewrockwool
as described in this document.
Periodically (After the Burning Season)
Maintenance Task
Accomplishing Person
Procedure
Cleaning Firebox Interior
Homeowner
Carefully remove logs, Rockwool and volcanic
stone if used. Vacuum out interior of the
firebox. Clean firebox walls and log grate.
Replace logs, Rockwool and volcanic stone as
detailed in this manual.
Check Flame Patterns and Flame Height
Checking Vent System
Homeowner
Homeowner
Homeowner
Refer to Figure 10 on page 7 and verify the
flame pattern and height displayed by the
appliance conforms to the picture. Flames
must not impinge on the logs.
Inspect the vent system at the top and at the
base (within the firebox) for signs of blockage
or obstruction. Look for any signs of disloca-
tion of the vent components.
Cleaning Optional Glass Doors
Clean as necessary following the directions
provided in this manual. DO NOT TOUCH OR
ATTEMPT TO CLEAN DOORS WHILE THEY
ARE HOT.
6
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Logs and Rockwool (Glowing Embers)
Placement
WARNING: LOGS GET VERY HOT AND
WILL REMAIN HOT UP TO ONE HOUR
AFTER GAS SUPPLY IS TURNED OFF.
HANDLE ONLY WHEN LOGS ARE COOL.
TURN OFF ALL ELECTRICITY TO THE
APPLIANCE BEFORE YOU INSTALL
GRATE AND LOGS.
WARNING: THIS APPLIANCE IS NOT
MEANT TO BURN WOOD. ANY ATTEMPT
TO DO SO COULD CAUSE IRREPARABLE
DAMAGE TO YOUR APPLIANCE AND
PROVE HAZARDOUS TO YOUR SAFETY.
Rockwool
Figure 10
Millivolt Appliance Checkout
If the pilot flame pattern is not as shown in
Figure 11, adjust it as follows:
WARNING: THE SIZE AND POSITION OF
THELOGSETWASENGINEEREDTOGIVE
YOUR APPLIANCE A SAFE, RELIABLE
ANDATTRACTIVEFLAMEPATTERN. ANY
ATTEMPT TO USE A DIFFERENT LOG SET
IN THE FIREPLACE WILL VOID THE WAR-
RANTY AND WILL RESULT IN INCOM-
PLETE COMBUSTION, SOOTING, AND
POOR FLAME QUALITY.
The gas control system on these appliances is
a millivolt standing pilot type. It consists of a
pilot burner, a piezo ignitor, a gas control valve,
a burner assembly and an ON/OFF wall switch.
A temperature limit switch is wired in series
with the millivolt wall switch and gas control
valve. If a higher than normal temperature is
sensed due to a blocked vent or prolonged
downdraft, the limit switch will open and cause
the burner to shut off.
1. Remove the pilot adjustment cap located on
the main gas valve.
2. Adjust the pilot screw to provide properly
sized pilot flame (Figure 10 ). Turn counter
clockwise to enlarge pilot flame and clockwise
to reduce the pilot flame. DO NOT attempt to
adjust pilot flame more than one half turn.
3. Replace the pilot adjustment cap.
The logs are packaged within the firebox.
The bag of rockwool is in the lower control
compartment. Remove the rockwool from
the packaging and tear into dime size pieces
(Figure 9). Spread across the burner in front
of the front log. See Figure 10. Do not use
more than is necessary to cover the burner.
When properly positioned, the rockwool will
unevenly cover approximately 85% of the
front of the burner with no appreciable gaps.
The pilot flame should be steady, not lifting or
floating. Flame should be blue in color with
traces of orange at the outer edge.
Replace logs if removed for pilot inspection.
To light the burner; rotate the gas valve control
knobcounterclockwisetothe“ON”positionand
then turn “ON” the remote wall switch.
The top ³⁄₈" (9 mm) at the pilot generator
(thermopile) should be engulfed in the pilot
flame (Figure 11).
Electronic Appliance Checkout
The gas control system on these appliances is
an electronic low voltage gas control valve with
an intermittent ignitor. It consists of a low
voltage gas control valve, an intermittent igni-
tionsystem,anelectroniccontrolmodule,trans-
former and a burner assembly. A temperature
limit switch is wired in series with the gas
control valve. If a higher than normal tempera-
ture is sensed, due to a blocked vent or pro-
longed downdraft, the limit switch will open
and cause the burner to shut off.
³⁄₈" (10 mm)
Theseappliancesareequippedwithabeautifully
crafted four (4) piece ceramic fiber log set. The
logs, shown in Figure 12 on page 8, are to be
positioned precisely as shown. Any modifica-
tion to the to the lay of these logs may result in
sooting, property damage and injury or death.
The pilot flame should be steady, not lifting or
floating. Flame should be blue in color with
traces of orange at the outer edge.
Figure 11
To light the burner, push the gas control lever
in and toward the left to the “ON” position.
Turn ‘ON’ the remote wall switch. Ensure the
ignitor lights the pilot. The pilot flame should
engulf the ignitor.
WARNING: PILOT FLAME PATTERN
ADJUSTMENT SHOULD ONLY BE PER-
FORMED BY A QUALIFIED PROFES-
SIONAL SERVICE TECHNICIAN.
Figure 9
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
7
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