Monitor M2400 User manual

SAFETY ALERT SYMBOL
These symbols appear as important safety precautions and should be understood
and followed bythe owner to assure safe operation ofthe heater.
For Quick Reference
Page
SECTION A: ^Important Caution 1
SECTION B: Specifications 5
SpecialFeatures 5
Safety Features 5
SECTION C: ToolsNeeded for Heater Installation 6
Accessories YouMay Need 7
Flue PipeExtensions 7
SECTION D: HeaterInstallation 9
Flue Pipe Clearances 10
SECTION E: Fueling 15
FuelingOptionsAvailable 15
External Tank Installation 15
EmptyFuelTank 16
SECTION F: StartingInstructions 17
SECTION G: AdjustingRoomTemperature 18
SECTION H: Turning Offthe Heater 18
SECTION I : Relighting the Heater 18
SECTION J: Programming the Heater 19
Setting the Clock 19
Programming for AutomaticHeaterOperation 20
Manual Operation 20
SECTION K: ProtectiveFeatures 21
Loss of Power-AutomaticReset, Child Lock 21
ElectricalFuse 21
OverheatPrevention 21
SECTION L: Care ofthe Heater 22
SECTION M: TroubleshootingGuide 24
2001COPYRIGHT © MONITOR PRODUCTS, INC.,

SECTION A
IMPORTANT CAUTION
AWARIMING
USE ONLYCRYSTALCLEARKEROSENE.NEVER
USE GASOLINE,WHITEGAS,CAMPFUEL OR
OTHER FLAMMABLELIQUIDS. USEOF SUCH
FUELS CAN RESULT INAN EXPLOSIVEFIRE AND
CAUSESEVEREINJURY.
KEROSENE ONLY
GAS
2\CAUTION
1. Makesurethatthere isno fuelleakage from fueltank and fuelpipejoint.
2. Makesurethatfluepipe(exhaustpipe, air supplyhose) is connected
properly.

3. Keepheater clean anddonot store any flammableitems onor near the
heater.
4. Don't usethe heater for dryingclothes.
5. Shouldanythingabnormaloccur inthe heater,remaincalm,Turn ItOff(Do
Not Unplug) and contactyourMonitordealer.
6. Risk of burns.
Flue pipe and louver may havehighsurface
temperature.

7. Donot place yourself or others too close tothe heater.
8. Installation of heater in extremehumidity or dustareas isnot
recommended.
Any removal of unitparts or remodeling is strictlyforbidden.
9. Donotsitonthe 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.
10. In areas of heavysnow accumulation, flue pipe may need tobe installed higher to avoidbeingburied.
In openareaswithstrongwind, a windbreak maybe necessary to avoidexhaustgasesbeingblown
back into the intake and causingpoor combustion.
Long
Extension
kit
-»- 24"min -
(60cm)

11. Donot install nor exhaust the flue pipe into a crawlspace or underneath floor.nor into a flue or chimney.
X
] '
\
/
>•
7
/
X
•---Flue
or
Chimney
12.OPERATING ALTITUDESHIGHERLIMITS
Thisheater is designed tobe usednormally upto 3000 feet above sea level. Touse over3000feet, butnot higher
than 7000 feet, consultwithyourdealer on correct air damperuse.
13.OPERATING TEMPERATURE LIMITS
Please usethe Monitorwithin the range of temperaturesindicated bythe shadedareashown onthe graph
below.
OperatingTemperatureLimits
Point A
InsideAreaTemperature — 4°F
OutsideTemperature — 22°F
Point B
InsideAreaTemperature60°F
OutsideTemperature -40°F
-100 2040
InsideAreaTemperature (°F)

SECTION B
SPECIFICATIONS
Model
Monitor 2400
Fuel Type
Crystal ClearKerosene
Heater Efficiency
93%'
HeatRatingHigh
: 43,000 BTU/hour
H.Medium : 32,000BTU/hour
L.Medium : 24,600BTU/hour
Low: 16,200 BTU/hour
Heater OutputHigh
: 37,200BTU/hour
H.Medium : 26,900BTU/hour
L.Medium : 20,700 BTU/hour
Low : 13,600 BTU/hour
Fuel Tank
Fuel Consumption
Separate (Notsuppliedwithheater)
High : 0.319 Gallon/hour
H.Medium : 0.24Gallon/hour
L.Medium : 0.18Gallon/hour
Low : 0.12Gallon/hour
Power Source
120 Volts AC; 60 Hz.
Power ConsumptionIgnition
:310 Watts
Operation :68 Watts(Average)
Heated Air Delivery
High: 388 Cubicfeet/minute
H.Medium: 388 Cubicfeet/minute
L.Medium: 330 Cubic feet/minute
Low: 300 Cubicfeet/minute
Vent PipeHole
2/1>-inches Diameter
Dimensions
Height: 26.6 inches
Width: 28.7inches
Depth: 14.0inches
Weight
82 Pounds,empty
*Net Efficiency is 88%, A.F.U.E.is 84%
SPECIAL FEATURES
AUTOMATIC IGNITION
MEMORY BACK UP: Set memory canbe kept in case
of power failure forupto30 minutes.
DUAL BLOWERS: Separatefans for combustion and
room air circulation.
THERMOSTATICALLY CONTROLLED:Adjusts tothe
desired roomtemperature.
BUILT-IN TIMER:Heater willautomaticallyoperate as
programmed bythe user.
AUTOMATIC RESET AFTER POWER FAILURE: Heater
willautomaticallyresumeoperationafterpower
is restored.
INDICATOR LIGHTS : Easy-to-seesignalsshowwhen
heater isin operation,whentimer is activated, and
when the burner is operating.
CHOICE OF FUEL SUPPLY:Connect to separate tank.
MULTIPLE HEAT EXCHANGER:Extracts 88%of heat
from burner.
CLEAN OPERATION: Products of combustion are vented
outside.
CONSUMES NO ROOM AIR :Airforcombustion is drawn
from outside.
EASY INSTALLATION: Includes all partsrequired for
standard installation.
SAFETY FEATURES
SAFE RE-LIGHTING:Heater will not restart until its
combustionchamber has cooled.
ELECTRICAL PROTECTION: Heater automatically shuts
off inthe unlikely event ofa malfunction inthe
electrical circuitry or disruption ofthe powersupply.
NO EXHAUST IN ROOM: Products of combustion are
dischargedoutdoors.
FLUE PIPE:Outside airis drawnthrough a pipe-within-
a-pipe ventingsystem.Thisprocesspreheats
combustion airand regainsheatfromexhaust
gases.
A CAUTION-ALTERNATE POWER SOURCES
The Monitor 2400 may not operate when powered
by sources such as an auxiliary generator, UPS
(Uninterrupted Power Source), inverters, etc. Check
with your dealer for guidance on specific
applications.

SECTION C
Before installing your heater, be sure to check and comply with local and statebuilding and electricalcodes
that may apply to ventedheaters in your area.Permanentwiringmust be installed bya licensedelectrician.
TOOLS NEEDED FOR HEATER INSTALLATION
Check the followingcharts tobe sure you have allthe toolsrequired to installyourMonitor2400HeatingSystem.
STANDARD TOOLSAPPLICATION
PhillipsHeadScrewdriver
Installation of HeaterParts
Steel TapeMeasureTakingMeasurements
Penor PencilMarkingDrilling Location
Exterior CaulkCaulkingBetween
Packing and Wall
Yardstick or LongStraightEdgeCheckingAngle
of Hole for FluePipe
Soapy WaterLubricatingSleeveHardware
SPECIAL TOOLS
APPLICATION
ElectricDrillAccommodatingHole
Sawand Drill Bit
2>2 inchHole Saw AttachmentCuttingHole
for FluePipe
Long Y± inchDrill Bit
DrillingPilotHoleThroughWall
Level
CheckingAngle of Hole for FluePipe andfor checking
heater level.
Fig. 1

ACCESSORIES YOUMAY NEED
Check the listbelow andsee your MPI dealer for accessories youmay need or want for installation of your heating-
system.
/K CAUTION: Only usethe flue pipe supplied with the Monitor2400, orthe approved accessory kits available from
your Monitor or dealer.
ACCESSORY
MediumAdjustableFluePipe Kit
LongAdjustableFluePipe Kit
LifterPump
Extra Short,Short,Medium or
P/N 8051
P/N 8052
P/N 1101
APPLICATION
For use wherewallthickness isupto12 /4 inches
For use wherewallthickness isupto20 inches
For use withlargecapacity tank wheregravityfeed isnot
practical
For use where"standard" installation isnot practical
LongExtension Kitor ElbowAdapter Kit
(See FluePipeExtensions,page 7)
Fitting and Tank
For large capacity fueling: Tobe dealer installed
EXTENSION KIT LENGTH
Extra ShortExtension Kit
Short Extension Kit
Medium Extension Kit
Long Extension Kit
P/N 82 12
P/N 8004
P/N 8003
P/N 8002
7!/6 to 1 1 1/2 inches(18.2 to 29.2cm)
11 1/2to 20'/4 inches(29.2 to 51 .4cm)
20!/4 to38 inches (51 .4 to 96.5cm)
38 to73 inches(96.5 to 185.4cm)
FLUE PIPEEXTENSIONS
Four standardextension kits are available fromyour
Monitordealer.Most installations canbe madewith
one of these kits. In special cases,custom installations
may be required.These maybe made with components
purchasedfromyourdealer.
In any installation the followinglimitationsMUST NOT
BE EXCEEDED.
1. The totallength ofthe intake or exhaustpipeshould
not exceed 10 feet(3m)with 3 elbows, 13 feet (4m)
with 2 elbows, or161/2 feet (5m)with 1 elbow.
2. Theseelbowsshouldinclude theone used atthe
heater butnottheoneontheair supplyhose northe
integralbends inthe fluepipe.(SeeFigure 2)
3.The correctdamper as shown on Page 13 must be
used.

Exhaust Elbow
Air SupplyHose
90° Joint Flue Pipe
Fig. 2
~k Donot count
8

SECTION D
HEATER INSTALLATION
Step 1: Fill Out Owner Registration Card
Remove yourowner registration cardfrom the plastic
envelope containing the owner'sguide. It should be
filled outand mailed as soon as possible.
Step 2: Check for Parts
Before discardingpackingmaterials, be sure you have
located the following:
FluePipe
Sleeve Nut
Spill Tray
Room Temp.Sensor(attached tothe rear ofthe
heater)
Cardboard Template
"STANDARD" Damper
"EXTENSION" Damper
Wall Clamp
Rubber Packing
Joint Pipe
Cloth Insulation Cover
Outer Flange
PipeHolder
Small Bagof Screws
Tapping, Type A —
Tapping, Type A —
For securing
sleeve and
wall clamps
For securing
wallclamps
SIZE
Tapping
Tapping
Fig. 3
Step 3: Choose a Location for Your Heater
In choosing a location for your heater, the following
guidelinesmust be considered:
• The heater MAY be installed on combustible floors.
• The areaaround the heatershould befreeof
obstaclesthatmightinterferewith thefree flow of
air. Allow the clearancesshown in Figure 4.
12" (30cm)
51/2"
(13.5cm)
(15cm)
Fig. 4
39"
(100cm)
If the unit is installed so that itis enclosed on bothsides
and top, the following instructions shall be carried out.
With the side andtop clearances as shown inthe
illustration (Fig.Sa) the front ofthe Monitor shall be
placed so that the front surface protrudes 5 inches
(12.5 cm) beyond the enclosure. (SeeFig. 5b)
5"min
(12.5cm)
(13.5cm)
6"min
(15cm)6"min
(15cm)
Fig. 5a
Fig. 5b
ZJA CAUTION:
• The heatermust notbe installed ina fireplace.
• An AC walloutletmust be withinreach ofthe
heater'spowercord.Extensioncordsmust notbe
used.
• The areaoutsidewhere the fluepipe will emerge
should be free of foliage,fuelstoragetanks and
flammableobjects. Air shouldcirculatefreely in
the area.Allow the clearances shown in Figure 6on
the nextpage.
• The wallwherefluepipeholewill becut should be
free of plumbingpipes,electricalwires,studs, air
ducts and otherobstacles.
NOTE: Use the cardboard template provided with your
heater for flue pipe location.
9

FLUEPIPECLEARANCES
Flue pipeinstallationsshouldprovide for venting toan unconfined spacethroughwhichthere isa free flow of
outdoor air.Clearances to adjacentwalls or obstaclesmustcomplywith the requirementsshownbelow.
FrontalClearanceCombustible
""" "'" ' uiiumu
ACAUTION: 1;
Do not attachanythingonto the outlet
or
of the fluepipe.
t
>• (30cm)
more
5K"_4—
(13.5cm)
Body -
Clamp
-fe^
\
Heater
•*
4
-Wall
Any construction
3" aboveFluePipe
(7.5 must not come _>
cm) within 24" (60cm)
or of front obstacle
more
«->(« 24" (60cm) *
or more
K Flue Pipe
r
8" (20cm)
or more
I
Ground or slabsurface
I
1 FrontObstacle
Overhead Clearance
fVvmhi ictihlo IIIIIIIIIIIIIIIIIIIIIIMIIIIIIIN
12"(:
or m
Body
Clam
Heate
I
30cn
ore
5,
(1-
P
r _
i)
£••_
3.5cr
j&
^_
n)
\
Non-combustible
"
Wa"
Combustible
nun mil iniiiimtii iHiU!iii[|[]j||iiiiimiimiuH]i||ii|
) Jr 24" (60cm)
•Jr or more
IIIIIIIIIIIIIHIIHIllr
45' /
T
~~^/ 12" (30cm)
/ or more
UjC *
~ FluePipe
Ground or slabsurface
SideClearance
Heater-
Body
Clami
\
]
D
\
•H!
Sideobstacle
iiiiiiimiiiimmiiiiMiiiiimiiM|iiii|iinii
T
18" (45cm)
or more
fr*n~
FluePipe
Wall
IMPORTANT:
(1) In areas of heavy snow falls, ground surface clearance
must be increased according to average snow falls, to
prevent flue pipe from being buried.
Long
Extension
kit
(2) In open area with strong wind, a wind break may be
necessary.
i»- 24"min -^
(60cm)
Fig. 6
10

Step 4: Drill a PilotHole
NOTE: The following directions apply to "standard"
installation. For other methods, follow instructions
included with accessory kits.
Use the template to position the hole tobe drilled. The
"green dot"indicates the exactcenter ofthe hole.Using an
electric drill and along drill bit, make a pilot hole through
the wall(Figure 7).Be sure the holeextendsthrough the
outsidewall.
Position of hole
Template
Fig. 7
/!\ CAUTION: The opening onthe inside wall should
be approximately 1/4 inch higher than
on the outside wall so the flue pipe will
slope downward when installed. This will
allow condensation to drain outdoors.
Step 5: Cutthe Hole forthe Flue pipe
Using a hole saw attachment andan electric drill, cut
a 21A inch diameter hole through the inner and outer
walls (Figure 8).
After the hole is cut, usea straight edge anda level
tobe sure the inside opening is approximately % inch
higher than the outside opening.
NOTE-.After cutting the inside wall,remove the insulation.
Make sure there are no obstructions inside the
wall, such as electrical wiring, water pipes, hot
air ducts, etc.
(6mm)
Fig. 8
Step 6:The Flue Pipe istwo Sectins, Flue Pipe A
and Flue Pipe B
Install the Flue Pipe A
From INSIDE the building, insert the fluepipe A (with
arrow pointing "up") into the hole. Fasten the flue pipe
with the 3#8X 3/4 tapping screws (FigureQ and 10).
(See Figure for screw size and application.)
NOTE: Top center port is an extra exhaust port.
#8x% tapping screw
Fig. 9
Room
Flue Pipe A
1/4"
(6mm)
11

Step 7:lnstallFluePipe B
Wall Thickness: 5-8 '/> inches
1. Slide the outerflange andthe rubberpackingonto
Flue pipe B. (Figure 11)
Rubber Packing
Outer Flange
. A
'/'A
Rubber Packing
Outer Flan9e
Fig. 11
FluePipe B
2. Spreadcaulkingmaterial onthe inside ofthe rubber
packing if required.(Figure 12)
Rubber Packing
Fig. 12
3.Itis imprtant to keep the "UP"mark onthe rubber
packing atthetop whilescrewing in Fluepipe B. Hold
the packing in placewhilescrewing in Flue pipe B
until itisthe tight.(Figure 13)
Rubber Packing
Fig. 13
Flue Pipe B
Wall Thickness: v« -5 inches
1. Setthe Sleeve Nutt the FluePipe B and turn the
Sleeve Nut counterclockwise.Side the OuterFlange
andthe Rubber Packing onto the FluePipe B.
(Figure 14)
Rubber Packing
\Rubber Packing
^ '• -n J^
(((( i ytr
V r-
Sleeve Nut
OuterFlangeFig.
14
;
I L
IF
Sk
o
/
1
ut
/
F
;eve
er Flange
"lue Pipe B
Nut
2. Spread caulking material onthe inside ofthe Rubber
Packing if required.(Figure 12)
3.Itis imprtant to keep the "UP"mark onthe Rubber
Packing atthetop whilescrewing inthe Flue Pipe B.
Hold the Rubberpacking in placewhilescrewing in
the FluePipe B until itisthe tight.(Figure 13)
4. Turn the Sleeve Nut clockwise and tighten.
(Figure 15)
RubberPacking
Flue Pipe A /
Outer F|ange
Sleeve Nut
FluePipe B
Fig. 15
12

Step 8: Install the SpillTray
Place the spilltray onthe floorwhere you plan to
locate your heater.
Remove the2 sets of screws from the cabinet(Figure
16).
Position the heater onthe spilltray sothe legs ofthe
cabinet fit into the circular indentations inthe spill
tray (Figure16).
Retainers
Fig. 16
Legs Spill Tray
Step 9: Level the cabinet
In order for heater to operateproperly. It must be
positioned ona levelsurface.Ensureproperleveling
by adjustingeach legandby using a carpenterslevel
to checkbothside to side, and front to backlevel
condition.
Attach and tightenbothsets of retainers and screws.
Step 10: Install the JointPipe
At the rear ofthe heater,slide the large end opening
of the joint pipe into the exhaustport outlet ofthe
heater. Be sure the joint pipe is fullyseated.Slide the
fabric coverover the joint pipe (Figure 17)
The o-rings thatseal the joint pipe maybedryand tight.
A little soapywater will ease installation.
Fabric Cover
Joint Pipe
Fig. 17
Step 11: Connect the Heater tothe FluePipe
Move the heatertoward the wall,guiding the jointpipe
into the center port ofthe flue pipe (Figure 18).
Be sure the jointpipe is completelyinsertedinto the
flue pipe.
Step 12: Install theAir Damper
If installation is standard(that isno extensionkits are
required), place theair dampermarkedwith a
"STANDARD" over theair intakeflange onthe flue
pipe (Figure 19).
Place the hosebandaround theendoftheair supply
hose. Push theair supply hose onto theair intake
flange and secure the hosewith the hoseband.
NOTE:Do not place intake hose onto metal capped
exhaust port.
13

NOTE:
The "STANDARD" damper is to be used with
extension kits up to a total overall length of 73
inches and a 1 bend (90° elbow)
The "EXTENSION" damper must be used when
extension kit or kits exceed 20 inches and 2 or 3
bends are used.
Step 15: Recheck the Heater
Beforeproceeding,checkagain tobe surethere are
no flammablematerialsclose tothe heater. Check to
be sure the heater is level.
Examine the fluepipe tobe sureconnections are tight.
Step 13: Install the Flue Pipe Holder
Place the ring ofthe fluepipeholderaround the flue
pipe. The otherside ofthe holderhooks ina slot
directly above the jointpipe atthe rear ofthe heater
(see Figure20).
FluePipeHolder
Fig. 20
Step 14: Secure the Heater
Insert the narrowends ofthe wallclampintosockets
on the rear ofthe heater.
Loosen the adjustment screws and extend the clamp
untiltheytouch the wall.Fasten the clamp tothe
wallwith 2 #8x% tappingscrew.
NOTE: If use of wall clamps is not feasible or
practical, the heater should be secured by
screws to floor through punched holes in spill
tray.
14

SECTION E
FUELING
/!\ WARNING: Use onlycrystalclearkerosene(Reddyed or clearkerosene orlow sulphur #1 oil).Neber use
gasoline,whitegas,campfuel or otherflammableliquids. Useof suchFuels can result inan explosive
fire and causesevereinjury.
FUELINGOPTIONSAVAILABLE
Fueling of yourMonitor2400HeatingSystem canbe
accomplished inoneof2 ways:
1. Gravity Fed LargeCapacityExternalTank:
Practical for largeheatingneedswherebulkdelivery
of kerosene is available.Thissystemshould be
installed bya qualifiedplumber or fuelsupply
technician.
2. Large Capacity ExternalTank with Pump:
For largeheatingneedswhere a gravity fed system
is not practical. An electriclifterpump,especially
designed foruse with your Monitor 2400 heating
system, is available from yourdealer.
When using a gravity fed tank or pumpingsystem to
supply fuel, the inlet pressure tothe heatermust not
exceed 2.5 psi.
NOTE:lt is recmmended to install the fuel line on the left
side of the unit, with an appropriate shut-off
valve, and then across, behind the unit, to the
attachment point on the right rear of the heater.
EXTERNAL TANK INSTALLATION- Gravity Fed
NOTE:External tank installations must comply with the
National Fire Prtection Association code NFPA
31 or locally applicable codes, such as the
Uniform Mechanical Code, that are cnsistent with
NFPA 31. Check with your local building official.
To install a largecapacity,gravity fed externaltank,
follow the instructionsbelow, and refer to Figure 21for
one possible installation. Useofa qualifiedinstaller is
recommended.
• Installation height ofthe bottom ofthe fuel tank
should be16 inches or moreabove the floorsurface
on which the heaterstands.Thisensuresthat inlet
fuelpressure will be sufficient.
•Thetopofthe fuel tank should beno higherthan
8>2 feetabove the floorunder the heater.Heights
above 8/4 feetwillexceed the2.5psi inletlimit,
and a pressurereducerwillneed tobe installed at
or near the unit.
• The horizontallength of pipingshould not exceed
100 feet and should be free of sharpbends or
obstructions.
• Pipingshould include no inverse U-type bends (to
avoid air locks, which could block the fuelsupply).
• Only % inch OD copper tubing should be used. The
tubing should be bentcarefully to avoidcrimping.
•A fuel filter is recommended foruseonthe fuelline
near the tank, anda shut-offvalveshould be
installed atthe tank.
•A flareadaptor canbe used to make a flaredtubing
connectionbetween the unit andthe filter atthe
tank.
•The fueltankshould be located no closerthan 3
feet toa source of heat.
• The fuel tank shouldhave an opening for filling on
thetopand vent with a weather-proof caponthe
side. On sometanks the vent and fill spout usethe
sameopening.
Whenusing a gravity fed tank to supplyfuel, the inlet
pressure tothe heatermust not exceed 2.5 psi.
The Monitor2400comesequippedwith a
3/a"
pipe
thread connection. A straight, or90 degree pipe-to-
flare fitting ora firomatic valve canbe used forthe
fuellineconnection. Ifa firomaticvalve is being used:
Valve Position-Open/Close
Turncounterclockwise to open,clockwise to close. If
threaded valvestem is sticking up about YA", valve is
open. If handlescrews off stem,valve is closed.
15

Outdoor Fuel Tank
Shut-off Valve
Flare Connection tion
maximum
H' Threaded Connection
(a4m)
1
-J %" OD Copper Tubing
NOTE: Fuel tank must be a minimum 3 feet away
from flue pipe.
NOTE2:A fusible link valve should be installed in
the fuel line behind the heater.
Check local codes and regulations. Fig.
21
CAUTION: Ensure that there is no fuel leakage
from any of the fuel line fittings and
connections.
EMPTY FUEL TANK
If atany timeduring the operation of your heater you
find.
• Displaywindowshows "E14".
• No heat.
• No flame.
You can assume youareoutof fuel.
Shouldthis situation occur, take the followingsteps.
Step 1: Turn the Heater Off
Press the Operation Button toputitinthe "Off"
position.
Step 2: Refuel
Refillyour fuel tank with kerosene.
Step 3: Turn the Heater On
Press the Operation Button toputitinthe "On"
position.
16

SECTION F
STARTING INSTRUCTIONS
Step 1: Plug inthe Heater
Plug intheAC cord, and route it away from the area
of the flue pipe. Itis recommendedthat no other
applianceshare the sameoutlet.
Step 2: Prime the Heater
If using the heater forthe firsttime, orifthe heater
has not been in operation for sometime,press the fuel
set lever atthe lowerrighthandside ofthe cabinet
and release it slowly 2 or3 times(Figure22).
/!\ CAUTION: Donot continuepressing lever repeat-
edly as this may causeoverfilling of constant
levelvalve inside.
NOTE:After a power outage, there is a three-minute
waiting period before the unit restarts, provided
the ON/OFF switch is in the "ON"position.
Step 3: Set "ON" Button
Depress the operationbutton toputitinthe "ON"
position. The "OperationLamp" lights indicating "Set
Room Temperature" and "present room temperature".
Burner statuslampswilllight and ignitionwillstart
after approximatelythreeminutes. In5 to10 minutes
the circulation fan willstart to operate, and warm air
will be felt comingthrough the cabinet grill.
Fuel Set Lever
Fig. 22
WEEKLY TIMERCONTROL
Won TueWedThu
FriSatSun
o o o
DAY SET CLOCK SET TIMER SET
O O O
SELECT
TEMP
AM
PM
SET ROOM
CD BURN
I
TIMER SELECTOR
Hold down for 3 sec.
/ON
Fig. 23
17

SECTION G
ADJUSTINGROOMTEMPERATURE
Pressing either the "UP" or "DOWN"buttonwillincrease
or decrease theset temperature by2 degrees
increments.
Once desiredtemperature is displayed,press set button
to lockintomemory.
When the desiredroomtemperature is reached, the
heater willautomaticallyshift to "H.Medium", "L.Medium"
or "Low"burningmode to maintain the desired
temperature.
When roomtemperatureexceeds the desired
temperature by approx. 4 degrees, the heaterwill
automaticallyshutoff. As roomtemperaturedrops, the
heater willautomaticallyre-start to maintain the desired
temperature.
INSTRUCTIONS FOR ECONOMYPLUSMODE
To engage the economyplusmode,simplypressdown the button labeled "EconomyPlus", to disengagepress
again.
NOTE:Operation switch must be "ON" and in manual mode.
Thisfeatureminimizes the "ON" and "OFF" cycling ofthe unit by allowing itto overshoot theset temperature by
8 degreesinstead ofthe normal 4 degrees.
The advantages of thisfeature areto increase the overallefficiency ofthe unit by:
1. Decreasingelectricalconsumption by decreasing the frequency of ignition cycles.
2. Reducingheatlossduring the prepurge and postpurgecycles.
3. Reducinginefficientcombustionassociatedwithstart upand shutdown.
4. Prolongingcomponentlife by decreasingexpansion and contraction of internalparts.
NOTE: This feature could be compared to driving an automobile in stop and go traffic (regular mode) versus
highway driving with cruise control engaged (Economy Plus mode).
SECTION H
SECTION I
TURNING OFFTHE HEATER
To turn offthe heater,press the OperationButton to
put itinthe "Off"position(Figure23). The operation
light will go out, andthe fuelflow will stop.
After turningheater offthe fans will continue torun
until unit has cooleddown tothe pointwhere the
fanswillautomaticallystop.
RELIGHTING THE HEATER
Automaticcontrolspreventyourheater from relighting
after the OperationButton has been setto "Off" until
heater has cooled.
If the OperationButton isputinthe "On"position
during the coolingperiod, the heaterwill automatically
relight attheendofthe period.
18