Monitor GF 500 User manual

SAFETY ALERTSYMBOL
These symbolsappear as important safety precautions and should be understood
and followed bythe owner to assure safe operation ofthe heater.
For Quick Reference
Page
SECTION A: ImportantCaution 1
SECTION B: Specifications 5
SpecialFeatures 5
SafetyFeatures 5
SECTION C: ToolsNeeded for Heater Installation 6
Accessories YouMay Need 7
Flue PipeExtensions 8
SECTION D: NoticeBeforeInstallation 9
Heater Installation 10
Flue PipeClearances 11
SECTION E:Gas Connection 15
SECTION F: OperatingInstructions 16
StartingInstructions 17
AdjustingRoomTemperature 17
Turning Offthe Heater 18
Relighting the Heater 18
Programming the Heater 18
Programming for AutomaticHeaterOperation 19
Manual Operation 19
SECTION G: ProtectiveFeatures • 20
Loss of Power-AutomaticReset 20
ElectricalFuse 20
Overheat Prevention 20
SECTION H: Maintenance and Check 21
SECTION I: TroubleShootingGuide 22
SECTION J : WiringDiagram 23
BlockDiagram 23
SECTION K: PartsList 24
COPYRIGHT © MONITOR PRODUCTS, INC.,

SECTION A
IMPORTANT CAUTION
AWARNING
IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION,SERVICE
OR MAINTENANCE CAN CAUSE PROPERTY DAMAGE, PERSONAL
INJURY OR LOSS OF LIFE,REFER TO THE OWNER'S INFORMATION
MANUALPROVIDED WITH THIS APPLIANCE.
INSTALLATION AND SERVICEMUST BE PERFORMED BYA
QUALIFIED INSTALLER,SERVICEAGENCY OR THEGAS SUPPLIER.
ACAUTION
• Makesure that flue pipe (exhaust pipe, air supplyhose) is
connectedproperly.
• Keep heaterclean anddonot store any flammableitems onor
near the heater.

Don't usethe heater for dryingclothes.
Shouldanythingabnormaloccur inthe heater,remaincalm,
turn itoff(donot unplug) and contactyourMonitordealer.
• Risk of burns.
Flue pipe and louver may have high surface
temperature.
Do not placeyourself or others too close tothe heater.
• Installation of heater in extremehumidity or dustareas isnot
recommended.
Any removal of unitparts or remodeling is strictlyforbidden.
Do notsitonthe heater.
Placingornaments or plants onthe heater isnot recommended.
Excess heat may causedamage to ornament or plant and
overwatering or spilling of water may causeshock toyouor
damage tothe heater.

Don'tsprayaerosols onthe heaterwhen in operation.
Don'tallowchildren to insertarticles inthe louvers.
Ei.v
w<tsf
//
Keep flammablematerials,trees,shrubsetc.awayfromflue pipe.
Do not ventunitintootherrooms.Flue pipe must be outside.
Do not install nor exhaust the flue pipe into a crawlspace or underneathfloor nor into a flue or
chimney.
X
Flue
or
Chimney

In areas of heavysnowaccumulation,fluepipe may need tobe installedhigher to avoidbeingburied.
In openareaswithstrongwind, a windbreak maybe necessary to avoidexhaustgasesbeingblown
back into the intake and causingpoorcombustion.
Long —
Extension'
kit
Must be higher.
Snow
24"min
(61cm)
1
Exhaust pipe must be keptclear of flammablematerials.
This heater isnot designed tobe built in.
\

SECTION B
SPECIFICATIONS
Model No.
GF500
Type of Appliance Fan typedirectventwallfurnace
InputRatingNat. Gas 38,000BTU/hour
LP. Gas 34,500BTU/hour
OutputRating Nat. Gas 30,700BTU/hour
LP.Gas 27,900BTU/hour
Efficiency
83%
ElectricalRating 120V, 60Hz,Lessthan 2 amperes
Power Consumption 80 Watts
Heated Air DeliveryHigh
388 Cubic feet/minute
Low 300 Cubic feet/minute
FluePipeHole
2.5 inchesdiameter
DimensionsHeight:26.6inches(67.56cm)
Width:28.7inches(72.90cm)
Depth:13.8inches(35.05cm)
Weight
82 pounds
Inlet Gas SupplyPressureNat. Gas Max.
Min.
10.5 inchW.C.(267 mmH2O)
5.1 inchW.C. (130mmH2O)
LP. Gas Max. 13.0 inchW.C.(330 mmH2O)
Min. 11.0 inchW.C.(279 mmH2O)
ManifoldTestPressureNat.
Gas3.4 inchW.C. (85 mmH2O)
LP. Gas3.4 inchW.C. (86 mmH2O)
The minimum and maximuminlet gas supplypressure areforthe purpose of inputadjustment.
The efficiencyrating of thisappliance isa product of thermalefficiencyratingdeterminedunder
continuous operatingconditions andwas determinedindependently ofany installedsystem.
SPECIAL FEATURES
AUTOMATIC IGNITION
MEMORY BACK UP:Set memory canbe kept in case of
powerfailure forupto5 minutes.
DUALBLOWERS:Separatefans for combustion and
room air circulation.
THERMOSTATICALLY CONTROLLED:Adjusts tothe
desiredroomtemperature.
BUILT-IN TIMER:Heater will automatically operate as
programmed bythe user.
AUTOMATIC RESETAFTERPOWERFAILURE:Heater
willautomaticallyresume operation afterpower is
restored.
INDICATOR LIGHTS:Easy-to-see signals showwhen
heater isin operation, whentimer is activated, and
when the burner is operating inlowor high modes.
CLEAN OPERATION: Products of combustion are vented
outside.
CONSUMES NO ROOMAIR: Airfor combustion is drawn
fromoutside.
EASY INSTALLATION:Includes all parts required for
standard installation.
SAFETY FEATURES
SAFE RE-LIGHTING:Heater will not restart until its
combustion chamber has cooled.
ELECTRICALPROTECTION:Heaterautomaticallyshuts
off inthe unlikelyevent ofa malfunction inthe electrical
circuitry or disruption ofthe powersupply.
NO EXHAUST IN ROOM:Products of combustion are
discharged outdoors.
FLUE PIPE:Outside airis drawnthrough a pipe-within-
a-pipe venting system.Thisprocesspreheats
combustion airand regainsheatfromexhaustgases.
A CAUTION: ALTERNATEPOWERSOURCES
The Monitor GF500 maynot operatewhenpowered
by sourcessuch asan auxiliary generator, UPS
(Uninterrupted PowerSource),inverters,etc.
Check with yourdealer for guidance on specific
applications.

SECTION C
Before installing yourheater, be sure to check and comply with local and state building and electrical codes
that may apply to ventedheaters in yourarea.Permanentwiringmust be installed bya licensedelectrician.
TOOLS NEEDED FOR HEATER INSTALLATION
Check the followingcharts tobe sure you have allthe tools required to installyourMonitorGF500HeatingSystem.
STANDARD TOOLS
APPLICATION
PhillipsHeadScrewdriverInstallation of HeaterParts
Steel Tape Measure Taking Measurements
Pen or Pencil Marking DrillingLocation
Exterior CaulkCaulkingBetweenPacking
and Wall
Yardstick or LongStraightEdgeCheckingAngle of Hole for FluePipe
Soapy Water Lubricating SleeveHardware
SPECIAL TOOLS APPLICATION
ElectricDrillAccommodatingHole
Sawand Drill Bit
2
1/2
inchHole Saw AttachmentCuttingHole for FluePipe
Long
1/4
inchDrill Bit Drilling PilotHoleThroughWall
Level CheckingAngle of Hole for FluePipe andfor checkingheater
level.
Fig.1

ACCESSORIES YOUMAY NEED
Check the listbelow andsee your MPI dealer for accessories youmay need or want for installation of yourheating
system.
ACCESSORY APPLICATION
MediumFluePipe P/N 8206 Foruse where wall thickness isupto 14Va inches(36.83cm)
LongFluePipe P/N 8005 Foruse where wallthickness isupto 20'/2 inches(52.07cm)
Extra Short,Short,Medium orForuse where "standard" installation isnot practical
LongExtension Kitor ElbowAdapter kit
(See FluePipeExtensions,page 8)

FLUE PIPEEXTENSIONS
Four standardextensionkits are availablefromyour
Monitordealer.Mostinstallations canbe madewith
one of these kits. In special cases, custom installations
may be required.These maybe madewithcomponents
purchased fromyourdealer.
In any installation the followinglimitationsMUST NOT
BE EXCEEDED:
2. Theseelbowsshouldinclude theone used atthe
heater butnottheoneontheair supplyhose northe
integral bends inthe flue pipe. (SeeFigure 2)
3. The correctdamper as shown on Page 13 must be
used.
4. Followcarefully the instructionincludedwitheach
kit.
1. The totallength ofthe intake or exhaustpipeshould
not exceed 10 feet (3.05m) with 3 elbows, 13 feet
(3.96m) with 2 elbows, or 161/2 feet (5.3m) with 1 elbow.
Exhaust Elbow
90° Joint
Air SupplyHose
FluePipe
* Do not count
Fig. 2