TMMONITOR 21Heating System

Owner's Guide

M O N I T O R P R O D U C T S I N C

For Quick ReferencePage

SECTION A: Specifications 4Special Features 4Safety Festures 4

SECTION B: Tools Needed for Heater Installation 5Accessories You May Need 6Window Installation 6Flue Pipe Extensions 7

SECTION C: Heater Installation 8Flue Pipe Clearances 9

SECTION D: Fueling • 14Refueling 15Fueling Options Available • 15External Tank Installation 15Empty Fuel Tank 18

SECTION E: Starting Instructions 19SECTION F : Adjusting Room Temperature 20SECTION G:Turning Off the Heater 20SECTION H: Relighting the Heater 20SECTION I : Programming the Heater 21

Setting the Clock 21Programming for Automatic Heater Operation 22Manual Operation 22

SECTION J : Protective Features 23Loss of Power — Automatic Reset 23Electrical Fuse • 23Overheat Prevention 23

SECTION K:Care of the Heater 24SECTION L : Troubleshooting Guide 26

COPYRIGHT © MONITOR PRODUCTS, INC.,

SECTION ASPECIFICATIONSModel Monitor 21

Fuel Type Crystal Clear Kerosene

Heater Efficiency 93%Heat Rating High: 22,000 BTU/hour

H.Medium: 17,400 BTU/hourLMedium: 11,700 BTU/hourLow: 9,600 BTU/hour

Heater Output High: 20,400 BTU/hourH.Medium16,200 BTU/hourL Medium: 10,900 BTU/hourLow: 8,900 BTU/hour

Fuel Tank 1.32 Gallons; Separate tank optionalFuel Consumption High: 0.164 Gallon/hour

H.Medium: 0.13 Gallon/hourL.Medium: 0.09 Gallon/hourLow: 0.07 Gallon/hour

Power Source 120 Volts AC; 60 HzPower Consumption Ignition: 250 Watts

Operation: 55 Watts (Average)Heated Air Delivery High: 176 Cubic feet/minute

H.Medium: 176 Cubic feet/minuteL.Medium: 113 Cubic feet/minuteLow: 113 Cubic feet/minute

Vent Pipe Hole 2%-inches DiameterDimensions Height: 25.6 inches

Width: 20.9 inchesDepth: 12.4 inches

Weight* When considering heat of condensation is lost then net efficiency is 87%.

55 Pounds, empty

SPECIAL FEATURESAUTOMATIC IGNITIONDUAL BLOWERS: Separate fans for combustion and

room air circulation.THERMOSTATICALLY CONTROLLED: Adjusts to the

desired room temperature.BUILT-IN TIMER: Heater will automatically operate as

programmed by the user.INDICATOR LIGHT: Easy-to-see signals show-when

heater is in operation, when timer is activated,and when the burner is operating in low, mediumor high modes. Indicator lights also warn againstlow fuel level.

AUTOMATIC RESET AFTER POWER FAILURE: Heaterwill automatically resume operation (in manualmode) after power is restored.

CHOICE OF FUEL SUPPLY: Built-in capsule tank orconnect to separate tank.

MULTIPLE HEAT EXCHANGER: Extracts 93% of heatfrom burner.

CLEAN OPERATION: Products of combustion are ventedoutside.

CONSUMES NO ROOM AIR:Air for combustion isdrawn from outside.

EASY INSTALLATION includes all parts required forstandard installation.

SAFETY FEATURESSAFE RE-LIGHTING: Heater will not restart untill its

combustion chamber has cooled.ELECTRICAL PROTECTION: Heater automatically shuts

off in the unlikely event of a malfunction in theelectrical circuitry or disruption of the power supply.

NO EXHAUST IN ROOM: Products of combustion aredischarged outdoors.

FLUE PIPE: Outside air is drawn through a pipe-within-a-pipe venting system. This process preheatscombustion air and regains heat from exhaustgases.

SECTION B MONITOR 21Before installing your heater, be sure to check and comply with local and state building and electrical codesthat may apply to vented heaters in your area. Permanent wiring must be installed by a licensed electrician.

TOOLS NEEDED FOR HEATER INSTALLATIONCheck the following charts to be sure you have all the tools required to install your Monitor 21 Heating System.

STANDARD TOOLS APPLICATION

Phillips Head Screwdriver Installation of Heater Parts

Steel Tape Measure Taking MeasurementsPen or Pencil Marking Drilling LocationExterior Caulk Caulking Between Packing and WallYardstick or Long Straight Edge Checking Angle of Hole for Flue PipeSoapy Water Lubricating Sleeve Hardware

SPECIAL TOOLS APPLICATION

Electric Drill Accommodating Hole Saw and Drill Bit2% inch Hole Saw Attachment Cutting Hole for Flue PipeLong Kiinch Drill Bit Drilling Pilot Hole Through WallLevel Checking Angle of Hole for Flue Pipe and for checking

heater level

Fig. 1

ACCESSORIES YOU MAY NEEDCheck the list below and see your MPI dealer for accessories you may need or want for installation of yourheating system.

V

ACCESSORY APPLICATION

Medium Fleu Pipe P/N 8206 For use where wall thickness is up to 14% inches

Long Flue Pipe P/N 8005 For use where wall thickness is up to 20 inches

Wall Mounted Fuel Tank P/N 8201 For small capacity, gravity fed outside fuel supply.

Electric Suction Pump P/N 11001101

For use with large capacity tank where gravity feed isnot practical

Window Installation Kit P/N 8208, 8209(See Window Installation below)

For use where "through-the-window" flue pipe installa-tion is desired

Extra Short, Short, Medium orLong Extension Kit or Elbow Adapter Kit(See Flue Pipe Extensions, page 7)

For use where "standard" installation is not practical

Fitting and Tank For large capacity fueling: To be dealer installed

WINDOW INSTALLATIONThe use of "through-the-window" installation for yourflue pipe will require a window installation kit and oneof the 4 (Extra short, Short, medium or long) extensionkits.In order to determine which extension kit is required,measure the distance from the floor to the TOP ofyour window sill (see Figure 2) and refer to the chartbelow.

Fig. 2

IF THE MEASURMENT IS:

20% to 25 inches25 to 33% inches

33y5 to 51% inches

51% to 86% inches

YOU NEED:

Extra Short Extension Kit

Short Extension Kit

Medium Extension Kit

Long Extension Kit

Elbow Adapter Kit

P/N 8212P/N 8204

P/N 8203

P/N 8202P/N 8213

NOTE: Window kit installation is prohibited when the window is required to meet the local building code require-ments for ventilation, emergency escape, or rescue.One or more Elbow Adapter Kit may be needed if heater is installed on inside wall.

MPiMONITOR 21

FLUE PIPE EXTENSIONSFour standard extension kits are available from yourMonitor dealer. Most installations can be made withone of these kits. In special cases, custom installationsmay be required. These may be made with componentspurchased from your dealer.

In any installation the following limitations MUST NOTBE EXCEEDED:1. The total length of extension pipe between the

heater and the outside tip of the flue pipe must notexceed 10 feet each for the air intake pipe and theexhaust pipe.

Exhaust Elbow

90° Joint

2. Neither the air intake pipe nor the exhaust pipemay have more than 3 elbows, counting the elbowsat the heater. The air supply Hose, and the integralbends in the flue pipe are not counted as elbows(See Figure 3).

3. The correct air damper as shown on page 13 mustbe used.

Air Supply Hose

Flue Pipe

Fig. 3 o Do not count

1

SECTION CHEATER INSTALLATIONStep 1: Fill Out Owner Registration CardRemove your owner registration card from the plasticpacket on the outside of the shipping carton. It shouldbe filled out and mailed as soon as possible.

Step 2: Check for PartsBefore discarding packing materials, be sure you havelocated the following:(See parts list for illustration).

Flue PipeSleeve NutSpill TraySensor (attached to the rear of the heater)Cardboard Template"S" DamperWall Clamps (2)Rubber PackingJoint PipeCloth Insulation CoverOuter FlangePipe HolderSmall Bag of Screws

Tapping, Type A-#8xKTapping, Type A-#8x%

Small Plastic Syringe

Step 3: Choose a Location for Your HeaterIn choosing a location for your heater, the followingguidelines must be considered:• The heater MAY be installed on combustible floors.• The area around the heater should be free of obsta-

cles that might interfere with the free flow of air.Allow the clearances shown in Figure 5.

For securingsleeve andwall clamps

For securingwall clamps

SIZE

Tapping Tapping

Fig. 5

Fig. 4

• An AC wall outlet must be within reach of the heater'spower cord. Extension cords must NOT be used.

• The area outside where the flue pipe will emergeshould be free of foliage, fuel storage tanks andflammable objects. Air should circulate freely in thearea. Allow the clearances shown in Figure 6 on thenext page.

• The wall where flue pipe hole will be cut should befree of plumbing pipes, electrical wires, studs, airducts and other obstacles.

NOTE: Use the cardboard template provided with yourheater for flue pipe location.

8

MPIMONITOR 21

TM

FLUE PIPE CLEARANCESFlue pipe installations should provide for venting to an unconfined space through which there is a free flow ofoutdoor air. Clearances to adjacent walls or obstacles must comply with the requirements shown below.

-

Frontal ClearanceCombustible IIIHIIIHIHII |i u i iiiiiiiiiiiiiiiiiiiiiii

24" (60cm)or more

5K" _(13.5cm)

Jr ca 3ftBody " ;grClamp 5k

vSj

Heater

Overhead ClearanceHnrrihi istihlfi -^ iilmiiiini iiiiiiiiiimiiiiimuiiiilli

24" (60cm)or more

5%" — >(laScm)

Body-— " ( is) 3kClamp gjf

sflHeater j

Side ClearanceBodyClamp

\

•SEHeater --

+

« —

-

•4-

=

4-

u

— WallAny construction |above Flue Pipe \must not come

5i/» within 24" (60cm) _» |(14 of front obstaclecm)

* or -If 24" (60cm) > |more or more 1 Front Obstacle

or more

I iGround or slab surface

Non-combustible

— WallCombustible

111 [I II 111 II [1111 III 11 IN llllll Mil l!ll|NI!lllll!llll!lll!ll((|lll

/ Jr 24" (60cm)» .iilr or more

iiiiiiiiiiiiiiiiiiiiiii/ t

45° /— V/ 12" (30cm)// or more

X i

:H ~ Flue Pipe

Ground or slab surface

Side obstacleIlilllllllllllllllllllll I Mlllllllllllllllllllllll

T18" (45cm)or more

^] |= 1

Flue Pipe

Wall

Fig. 6

9

Step 4: Drill a Pilot HoleNOTE: The following directions apply to "standard"

installation. For other methods, follow instructionincluded with accessory kits.For walls up to 8/i inches thick, use a shortflue pipe; for walls up to 14% inches thick, usea medium flue pipe; and for walls up to 20 inchesthick, use a long flue pipe.

Use the template to position the hole to be drilled.The "red dot" indicates the exact center of the hole.Using an electric drill and a long drill bit, make apilot hole through the wall (Figure 7). Be sure the holeextends through the outside wall.

Position of hole- -Template

Fig. 7

CAUTION: The opening on the inside wall should be approximately Yz inch higher than on the outside wall so theflue pipe will slope downward when installed. This will allow condensation to drain outdoors.

Step 5: Cut the Hole for the Flue PipeUsing a hole saw attachment and an electric drill, cut

a 2% inch diameter hole through the inner and outerwalls (Figue 8).

Wall

Fig. 8

After the hole is cut, use a straight edge and a levelto be sure the inside opening is approximately ><?inchhigher than the outside opening.

10

MONITOR 21Step 6: Install the Flue Pipe with the 3 #8xMapping screws(Figure 9). (See FigureFrom INSIDE the building, insert the flue pipe (with 4 for screw size and application.)arrow pointing "up") into the hole. Fasten the flue pipe

tapping screw

Fig. 9

Step 7: Install the Outer FlangeApply caulking material to the inside ridge of therubber packing (Figure 10).Holding the "Up" mark to the top, slide the rubberpacking onto the sleeve (caulk side to the wall).

NOTE: If it is difficult to slide the packing onto thesleeve, apply soapy water to the inside of thepacking.

Once the rubber packing is in place, slide the outerflange onto the sleeve with the conical side pointingoutward (Figure 11).Screw the flue pipe nut onto the flue pipe grooves,and tighten it firmly (Figure 11). Fig. 10

Rubber Packing

Outer Flange

Flue Pipe Nut.

Fig. 11

11

Step 8: Install the Spill TrayPlace the spill tray on the floor where you plan tolocate your heater.Remove the 2 sets of screws from the cabinet (Figure

12).Position the heater on the spill tray so the legs of thecabinet fit into the circular indentations in the spilltray (Figure 12).

RetainersFig. 12

Legs Spill Tray

Attach and tighten both sets of retainers and screws.

Step 9: Level the cabinetIn order for heater to operate properly, it must bepositioned on a level surface. Ensure proper levelingby using a carpenters level to check both side to side,and front to back level condition.

Step 10: Install the Joint PipeAt the rear of the heater, slide the large end openingof the joint pipe into the exhaust port outlet of theheater. Be sure the joint pipe is fully seated. Slide thefabric cover over the joint pipe (Figure 13).

Step 11: Connect the Heater to the Flue PipeMove the heater toward the wall, guiding the joint pipeinto the center port of the flue pipe (Figure 14).Be sure the joint pipe is completely inserted into theflue pipe.

Fabric Cover

Joint Pipe

Fig. 13

12

MPIMONITOR 21

Step 12: Install the Air DamperIf installation is standard (that is, no extension kitsare required), place the air damper marked with an "S"over the air intake flange on the flue pipe (Figure 15).Place the hose band around the end of the air supplyHose. Push the air supply Hose onto the air intakeflange and secure the Hose with the hose band.

Step 13: Install the Flue Pipe HolderPlace the ring of the flue pipe holder around the fluepipe. The other side of the holder hooks in a slotdirectly above the joint pipe at the rear of the heater(see Figure 16).

Air Supply Hose

Fig. 15

Flue Pipe Holder

Fig. 16

NOTE: If an extension kit is required for the installation,use the correct damper as follows:

Up to 3 elbows with Extra Short Extension Kit"S" Damper

Up to 3 elbows with Short Extension Kit"S" Damper

Up to 3 elbows with Medium Extension KitUnused

Up to 3 elbows with Long Extension KitUnused

Step 14: Secure the HeaterInsert the narrow ends of the 2 wall clamps into socketson the rear of the heater.Loosen the adjustment screws and extend the clampsuntil they touch the wall. Fasten the clamps to thewall with 2 #8x%tapping screws.

Step 15: Recheck the HeaterBefore proceeding, check again to be sure there areno flammable materials close to the heater. Check tobe sure the heater is level.Examine the flue pipe to be sure connections are tight.

13

SECTION DFUELINGWARNING: USE ONLY CRYSTAL CLEAR KEROSENE. NEVER USE GASOLINE, WHITE GAS, CAMP FUEL OR

OTHER FLAMMABLE LIQUIDS. USE OF SUCH FUELS CAN RESULT IN AN EXPLOSIVE FIRE ANDCAUSE SERVERE INJURY.

Step 1: Lift Out the Capsule Fuel TankTo fill with fuel, open the tank cover and lift out thecapsule fuel tank (see Figure 17). Turn the tankup-side down, and remove the fuel cap. If the fuel capis difficult to unscrew, press the valve in the center,and remove.

Fig. 17

"FULL" Fuel Level

Fig. 18

Step 3: Reinstall the Capsule Fuel TankReplace and tighten the fuel cap. To insure proper fuelflow, be sure the cap is secured correctly.Install the tank with the arrow pointing forward, andclose the tank cover (see Figure 19).

Step 2: Using a SiphonA siphon is not included with your Monitor 21. Youmay obtain one from your Monitor dealer.To operate a siphon, insert the straight tube into thekerosene container. Insert the siphon's flexible hoseinto the capsule fuel tank (see Figure 18).Watch the fuel gauge on the capsule tank closely.As the fuel begins to near the full level (see Figure 18),stop the flow by turning the vent knob on top of thesiphon counter-clockwise. Remove the siphon slowlyto allow excess kerosene to drain back into thecontainer.

Fig. 19

14

44PIMONITOR 21

REFUELINGNOTE: When the red light marked "Empty" illuminates

and flashes, a buzzer will sound for twentyseconds. The burner mode is changed to "Low"automatically, and then, the heater will shut offafter 30 minutes.The remaining burning time is indicated at thedisplay window.

30 min

20 sec

Buzzer sounds•Burner shuts off.

Red light flashes.•Burner mode change to "Low"

Stepl:When the red light marked "Empty" illuminates andflashes, buzzer sounds, press the Operation Switchto put :'-. in the "OFF" position and wait 15 minutes forthe heater to cool.

Step 2:If kerosene has accumulated in the spill tray or in thechamber which holds the capsule fuel tank, cleanwith a towel or rag. Remove any flammable itemssituated near the heater or flue pipe.

Step 3:Follow directions under "Fueling".

FUELING OPTIONS AVAILABLEIn addition to the standard capsule tank, the followingfueling options are available for use with your Monitor21.1. Wall Mounted Fuel Tank: For small fueling needs.

This system, available from your MPI dealer, isgravity fed and easily installed by anyone handy inmaking home improvements.

2. Gravity Fed Large Capacity External Tank: Practicalfor large heating needs where bulk delivery ofkerosene is available. This system should beinstalled by a qualified plumber or fuel supplytechnician.

3. Large Capacity External Tank with Pump: For largeheating needs where a gravity fed system is notpractical. An electric suction pump, especiallydesigned for use with your Monitor Heating System,is available from your dealer.

When using a gravity fed tank or pumping system tosupply fuel, the inlet pressure to the heater must notexceed 2.5 psi.

NOTE: When using a separate fuel tank with yourMonitor 21, the "Empty" light will NOT signal anempty tank. Watch the gauge on the tank toavoid running out of fuel.

EXTERNAL TANK INSTALLATION-Gravity FedWhen using external tank, changes in heater installationand pipe connections are required.

PREPARATION AT HEATERStepl:Remove the capsule fuel tank, and the fuel filter fromthe fuel sump tank (see Figure 20).

Fuel Filter

Fuel Sump Tank

Fig. 20

15

Remove fuel with the siphon, remaining fuel must be sucked up with the plastic syringe (see Figure 21).

Fuel Sump Tank

Plastic Syringe

Fig. 21

Step 3:Wipe off the fuel sump tank with a towel or rag (seeFigure 22).

Fig. 22

Step 4:Remove the nut at the rear lower side of the heater.Collect fuel draining from the heater into a container.Hold the nipple with a wrench and loosen the nut withthe other wrench (see Figure 23).

Wrench

Nut Container

Fig. 23

16

MPIMONITOR 21

Step 5:Insert the rubber plug into the disconnected pipe (seeFigure 24).Wipe off spilled fuel. Rubber Plug Bend the pipe aside

Fig. 24

Step 6:Remove the screws at the louver, and carefully removethe louver and front panel (see Figure 25).

Louver

Front Panel

Fig. 25

Step 7: Connect the plugs of red and brown wires marking "U" coming out from the printed wiring board forturning off the function of the fuel empty float switch (see Figure 26).

Printed Wiring Board

Lead WiresColor : Red/BrownMarking : "U"

Fig. 26

17

- ,_.Step 8: Replace the front panel and the louver.

Step 9: Connect the fuel line from External Tank as follows.

NOTE: External tank installations must comply with theNational Fire Protection Association code NFPA31 or locally applicable codes, such as the 1979Uniform Mechanical Code No.5-1. that areconsistent with NFPA 31. Check with your localbuilding official.

To install a large capacity, gravity fed external tank,follow the instructions below, and refer to Figure 27for one possible installation. Use of a qualified installeris recommended.• Installation height of the bottom of the fuel tank

should be 16 inches or more above the floor surfaceon which the heater stands. This insures that inletfuel pressure will be sufficient.

• The top of the fuel tank should be no higher than8 Meet above the floor under the heater. This insuresthat inlet fuel pressure will not be excessive.

• The horizontal length of piping should not exceed

100 feet and should be free of sharp bends orobstructions.

• Piping should include no inverse U-type bends (toavoid air locks, which could block the fuel supply).

• Only %inch OD copper tubing should be used.The tubing should be bent carefully to avoid crimping.

• A fuel filter is recommended for use on the fuel linenear the tank, and a shut-off valve should be installedat the tank.

• Flare connections should be used at the fusible linkvalve connection on the heater and at the fuel filterto be installed at the tank.

• The fuel tank should be located no closer than 6feet to a source of heat.

• The fuel tank should have an opening for filling onthe top and a vent with a weather-proof cap on theside. On some tanks the vent and fill spout use thesame opening.

When using a gravity fed tank to supply fuel, the inletpressure to the heater must not exceed 2.5 psi.

Outdoor Fuel Tank

Shut-off Valve

Fusible LinkValve Connection

Fig. 27

EMPTY FUEL TANKIf at any time during the operation of your heater youfind.• Burner Status indicators are blinking.• No heat• No flameYou can assume you. are out of fuel.

Should this situation occur, take the following steps.

Step 1: Turn the Heater OffPress the Operation Button to put it in the "Off" posi-tion.Step 2: RefuelRefill your fuel tank with kerosene.Step 3: Turn the Heater OnPress the Operation Button to put it in the "On" posi-tion.

18

SECTION E4/IPI

MONITOR 21STARTING INSTRUCTIONSStep 1: Plug in the HeaterPlug in the AC cord, and route it away from the areaof the flue pipe. It is recommended that no otherappliance share the same outlet.

Step 2: Prime the HeaterIf using the heater for the first time, or if the heaterhas not been in operation for some time, press the fuelset lever at the lower right hand side of the cabinetand release it slowly 4 or 5 times (Figure 28).

Step 3: Set "ON" ButtonDepress the operation button to put it in the "ON"position.The "Operation lamp" lights indicating "Set roomtemperature" and "Present room temperature". Burnerstatus lamps will light and ignition will start afterapproximately three minutes. In 5 to 10 minutes thecirculation fan will start to operate, and warm air willbe felt coming through the cabinet grill.

Fuel Set Lever

Fig. 28

RUN AUTO EMPTY BURNER STATUS SET ROOM

LOW HIGH

TEMPAMPM 11! - h fl

OPERATION TIMER SELECTORCLOCK CLOCK

ON/OFF AUTO /TEMP SET 1st 2nd 3rd 4th

TIME/TEMP SET

HOUR MINUTE SET CLEAR

UP DOWN

Fig. 29

19

SECTION FADJUSTING ROOM TEMPERATUREPress either the "UP" or "DOWN" button to set thedigital set room temperature indicator to the desiredtemperature, and then press the "SET" button. Afterthe room temperture has stabilized in 1 to 2 hours,adjust the temperature to the desired level.The lights on the control panel will indicate the levelof heater operation—low, medium or high. The heater

will automatically change its heat output until the desiredroom temperature is reached. While it cycles, you mayhear the circulation fan change speed.Depending on the output required to maintain thedesired room temperature, the indicator lights willilluminate in the following pattern:

BURNER MODE LIGHT PATTERN

High 8 indicators — On

H.Medium 6 indicators — On

L Medium 4 indicators — On

Low 2 indicators — On

Off No lights on* The heater will shut itself off temporarily when the desired room temperature has been reached and restart automatically when

necessary to maintain room temperature.

SECTION GTURNING OFF THE HEATERTo turn off the heater, press the Operation Button toput it in the "Off" position (Figure 29). The operation-light will go out, and the fuel flow will stop.

SECTION HRELIGHTING THE HEATERAutomatic controls prevent your heater from relightingafter the Operation Button has been set to "Off" untilthe heater has cooled.If the Operation Button is put in the "On" positionduring the cooling period, the heater will automaticallyrelight at the end of the period.

20

SECTION I MONITOR 21TM

PROGRAMMING THE HEATERSETTING THE CLOCK

Step 1: Set the Timer SelectorMove the Timer Selector Knob to the "Clock Set" position. The LED indicator in the Display Window will show88 : 88 at this point.

DISPLAY WINDOW

RUN AUTO EMPTY BURNER STATUSSET

LOW HIGH

TEMPAMPM

ROOM

n /" • Q OD O • O '_'

TIMER SERECTOR

OPERATION \TIMER SELECTORCLOCK\ CLOCK

ON/OFF AUTO /TEMP \SET1s t 2nd 3rd 4th

TIME/TEMP SET

TIME jj HOUR MINUTE SET CLEAR

TEMP |l l| UP DOWN

OPERATION BUTTON

Fig. 30

Step 2: Set the HourPress the "Hour" Button until the correct hour (eitherA.M. or P.M.) appears in the window.

Step 3: Set the MinutePress the "Minute" Button until the correct timeappears in the window.Immediately press the "Set" Button.

NOTE: If the "Set" Button is not pressed within 1 minuteafter the time is set, the programming will becancelled.

Step 4: Display the Current TimeTo display the current time, move the Timer SelectorKnob to the "CLOCK/TEMP" position.

I

21

PROGRAMMING FOR AUTOMATIC HEATER OPERATIONThe monitor 21 Heating System is designed to provideup to 4 times Time/Temperature programming a day.To program the heater for automatic operation, referto Figure 30 and follow the steps below.

Step 1: Set the 1 st Time/TemperatureMove the Timer Selector Knob to the "1st" position.Press the TIME Button. Set the 1st desired time bypressing the HOUR and MINUTE Buttons as describedunder "Setting the Clock".

NOTE: Be sure to set the time correctly for either A.M.or P.M.Press the "SET" Button.Press the "TEMP" Button.Set the 1st desired temperature by pressingthe UP and DOWN Buttons.Press the "SET" Button.

Step 2: Program the Remaining TimesWith the Timer Selector Knob in the appropriatepositions, program the 2nd, 3rd, 4th times as describedabove. Be sure to press the Set Button after eachtime is programmed.

Step 3: Activate Automatic OperationTo operate your heater automatically, press the "Auto"Button on the control panel. When you have done this,the "Auto" light will illuminate, confirming that theheater is in the automatic operation mode.

Step 4: Clearing an Automatic SettingShould it become necessary to clear an automaticsetting, slide the Timer Selector Knob to the appropri-ate position and press the "Clear" Button.

MANUAL OPERATIONWhen there is no further need for automatic operation,or when you wish to override it, press the "AUTO"Button again. Your heater will operate thermostaticallyat the setting you choose, and the clock will continueto operate.

It is important to note that activating manual operationdoes NOT clear the automatic programming. To returnto automatic operation, simply press the "AUTO"Button.

t

22

SECTION J MONITOR 21PROTECTIVE FEATURESLOSS OF POWER-AUTOMATIC RESETNOTE: If power to the heater is interrupted, a thud-like

noise may be heard in the combustion chamber.This is normal, and should not cause alarm.Once power is restored, your heater will resumeoperation in the MANUAL mode and maintainroom temperature according to the initial settingtemperature (72°F). The Display Window willshow 88 '. 88 indicating the need to reset theclock and re-program the heater for automaticoperation.

ELECTRICAL FUSEIn the unlikely event of a failure in the heater's elect-rical system, a fuse will "blow" and interrupt the power.Do not attempt to change the fuse.Contact your MPI dealer for the name of a trained andcertified service representative in your area.

OVERHEAT PREVENTIONIf your heater overheats, a thermostatic switch willautomatically stop the flow of kerosene and extinguishthe flame. The burner status indicators are blinking.Restore heater operation by following the steps below.

Step 1: Turn the Heater OffPress the Operation Button to put it in the "Off" posi-tion.

Step 2: Allow the Heater to CoolWait bpproximately 30 to 45 minutes for the heater tocool completely.

Step 3: Uuplug the Heater from the Wall Outlet.

Step 4: Remove ObstructionsThe overheated condition may be caused by obstruc-tions blocking the air flow to the heater. Check:• The front of the heater• The circulation fan (on the back of the heater)• The flue pipe (outside)

Step 5: Remove the LouverRemove the screws at the louver, and carefully removethe louver (Figure 31).

Louver

Fig. 31

Remove any accumulation of dust or other matter thatmay be covering the burn chamber and the heatexchangers inside the heater.

Step 6: Replace the Louver.

Step 7: Plug in the Heater

Step 8: Re-program the Heater

Step 9: Turn Heater On

CAUTION: If the unit overheats a second time, turnit off and contact your MPI dealer for service.

i

23

SECTION KCARE OF THE HEATERPush operation switch to "OFF" remove the AC plug from the wall outlet and wait approximately 30 minutes forthe heater to cool before performing any of the following steps.

Step 1: Retrieving Objects from Inside the HeaterShould an object fall inside the heater, through thegrill openings, it must be removed to avoid affectingthe operation of the heater.After allowing the heater to cool, remove the frontcover panel. (See Step 5 of the previous section.)After the object has been removed, replace the frontcover before attempting to re-start the heater.

Step 2: Cleaning the CabinetWhen the cabinet is soiled, wipe it with a damp cloth.Restore the shine with a dry cloth.The use of abrasive household cleaners may dull thefinish.

Step 3: Checking the Flue PipeAt the beginning of each heating season, check theinside of the flue pipe. Foreign matter, spider webs,etc. must be removed.Be sure all fittings and joints are tight.

Step 4: Cleaning the InteriorRemove the Front Cover Panel (as described in Step5 of the previous section), and wipe away dust orother accumulation.Look for signs of fuel leakage around the joint pipeand the bottom of the cabinet. If fuel is detected, wipeit away and, if necessary, contact your MPI dealer forany necessary repairs.

Step 6: Cleaning the Fuel StrainerThe strainer of the fuel constant level valve should becleaned once a year and before storing heater at theend of each season.

Step 6-A:Turn knob of the shut-off valve installed at the fuelinlet connection to close the fuel line. (See Figure 27).

Step 6-8:To catch the fuel which will drain out, set the drainguide made by cardboard below the strainer cover,with a small container under it. (See Figure 32).

Step 6 C:Loosen the two screws from the strainer cover andremove.

Step 6-D:Remove the strainer and wash with pure kerosene.

Step 6-E:Return the strainer to its original position. Replacestrainer cover and screw to secure.

Step 6-F:Wipe away any spilled kerosene.

Step 6-G:Turn the knob of the shut-off valve to open. Check forkerosene leakage.

Step 5: Cleaning the Blower GuardHeating efficiency will be reduced if the blower guardat rear of the cabinet is blocked with dirt or dustBlockage also produces a rise in heat that could causethe heater to shut off.Wipe the guard clean at least once a week.

24

MPIMONITOR 21

Drain Guide Container

Fig. 32

Step 7: Storing the HeaterDuring summer months or long periods when yourheater will not be in operation, take the followingsteps:

• Clean off the exterior cabinet with a damp cloth, andbrush or vacuum dust from the grills.

• Remove the AC cord from the wall outlet.• Cover the heater to protect it from dust.• DO NOT DISASSEMBLE the heater or extension kits.

Replacement of lost parts is an unnecessary expense.

25

SECTION L _

TROUBLESHOOTING GUIDEShould symptoms appear during the operation of your heater, refer to the chart below,restore normal operation, contact your MPI dealer for service.

If you are unable to

SYMPTOM CAUSE REMEDY

Heater does not go on withoperation switch.

Timer is in Auto

AC cord is disconnected fromwall outlet. Power failure.

Out of fuel.

Water in fuelClogged fuel strainer

Capsule tank incorrectly installed.

Press Auto Button again.

Check plug and power source.

Press the fuel set lever at thelower right hand side of thecabinet. Check "Empty" light.If illuminated, refuel heater.

If separate tank is used "Empty"light does not operate.

Refill with fresh kerosene.Clean fuel strainer.See "Care of the heater" Section K

Check tank, turn around, ifnecessary.

Heater extiguishes after lighting Air pocket in fuel line.

Out of fuel.

Press fuel set lever on lower rightband side of the cabinet andrelease slowly 4 or 5 times

Check "Empty" light. If illuminatedrefuel heater

Changes in room temperature.(Slight differences in roomtemperature are normal.)

Poor location of heat sensor. Relocate sensor if changes areuncomfortable.

Automatic timer does not startheater.

Timer is in Manual.

Timer improperly programmed.

Power interruption.

Press Auto Button.

See "Programming for AutomaticOperation, "Section I".

See "Loss of Power", section J

Flame does not reach normal size. Air bubbles in fuel controller.

Heater is not level.

Slowly move temperature selectorseveral times between the lowestand the highest positions.

Check level.

Poor flame, sounds of combustion,soot at the rear of the heater.

Loose flue pipe. Allow heater to cool completely;tighten all connections.

Soot on inside of burnerwindow or exhaust ports offlue pipe.

Obstruction of combustion airintake system or combustionfan failure.

Inspect air intake system and airsupply elbow for blockage. Cleanwith a brush, if necessary, andcarefully reconnect.

Heater switches from auto-matic to manual operation;display window shows 88 : 88

Power interruption;automaticreset

See "Loss of Power",Section J.

MEMO

27

^Monitor 21™ Vented Heating Systems Limited Warranty-^

MONITOR PRODUCTS, INC., warrants eachMONITOR 21 vented heating system sold by it tobe free from defects in material and workmanship,under normal use and service, for one year afterthe date of original retail purchase, subject to theterm and conditions stated below.

1. WARRANTOR :This warranty is granted byMONITOR PRODUCTS, INC., P.O. Box 3408,Princeton, New Jersey 08543.

2. PARTIES TO WHOM WARRANTY IS EXTENDED:This warranty shall be extended only to theoriginal retail purchaser.

3. PARTS COVERED: All products and partsmanufactured by or for MONITOR PRODUCTS,INC., except as provided for herein. Replacementparts are warranted only for the balance of theoriginal warranty period.

4. PARTS NOT COVERED: The following parts arenot covered by this warranty: fuel filters, ventingkits, extension kits, fuses.

5. REMEDY: If, within the applicable warrantyperiod, any product or part included in thiswarranty proves to be defective in material and/orworkmanship, then MONITOR PRODUCTS, INC.,shall repair or replace, at its option, the defectiveproduct or part. Service at the point of installation(not including dealer travel time) will be providedat no charge to the customer, but must beperformed by a MONITOR PRODUCTS, INC.,dealer authorized to sell and service theMONITOR 21 vented heating system.

6. PROCEDURE FOR OBTAINING PERFORMANCEUNDER THIS WARRANTY: In order to obtainperformance of the obligations under thiswarranty, the original purchaser must promptly(in no event later than thirty (30) days afterdiscovery of the defect) notify the local MONITORPRODUCTS, INC., dealer authorized to sell andservice the MONITOR 21 vented heating system.Service will be provided during normal businesshours within a reasonable time after the dealerhas been notified of the need for service. If youare unable to locate a local MONITORPRODUCTS, INC., dealer authorized to sell andservice the MONITOR 21. vented heating system,call or write to: SERVICE DEPARTMENT,MONITOR PRODUCTS, INC., P.O. BOX 3408,PRINCETION, NEW JERSEY 08543, 201-329-0900.

Any claim made under this warranty must beaccompanied by proof of original purchase datesales invoice or cancelled check showingserial number is satisfactory evidence.

7. SOLE REMEDY: The remedy and liability for anybreach of warranty, express or implied, set forthabove is the sole and exclusive remedy and thelimit of liability for any such breach.

8. DESIGN CHANGE: MONITOR PRODUCTS, INC.,reserves the right to make changes in the designor material of the heater without incurring anyobligations to incorporate such changes in anyproduct previously manufactured or advertised.

9. EXCLUSIONS AND IMPLIED WARRANTIES: THISWARRANTY DOES NOT EXTEND TO ANYDEFECT DUE TO THE NEGLIGENCE OFOTHERS, FAILURE TO INSTALL, OPERATE ORMAINTAIN THE HEATER IN ACCORDANCEWITH THE INSTALLATION, OPERATION ANDMAINTENANCE INSTRUCTIONS FURNISHEDWITH EACH NEW HEATER, UNREASONABLEUSE, ACCIDENTS, ALTERATIONS, ORDINARYWEAR AND TEAR, THE USE OF UNAUTHO-RIZED OR NON-STANDARDIZED PARTS ORACCESSORIES OR THE USE OF ANY FUELOTHER THAN GOOD QUALITY KEROSENESUCH AS 1K GRADE. ALL IMPLIED WARRAN-TIES, IF ANY, ARISING UNDER STATE LAW INCONNECTION WITH THE SALES BY MONITORPRODUCTS, INC., OF ANY NEW HEATER ARELIMITED IN DURATION TO THE DURATION OFTHIS WRITTEN WARRANTY. THERE ARE NOWARRANTIES, EXPRESS OR IMPLIED, OFMERCHANTABILITY, FITNESS FOR A PARTI-CULAR PURPOSE OR OTHERWISE WHICHEXTEND BEYOND THIS WARRANTY MONITORPRODUCTS, INC., SHALL NOT BE RESPONSI-BLE FOR ANY INCIDENTAL OR CONSEQUEN-TIAL DAMAGES. WHETHER AS A RESULT OFBREACH OF WARRANTY, NEGLIGENCESTRICT LIABILITY IN TORT OR OTHERWISE.

NOTE: SOME STATES DO NOT ALLOW: (A) LIMI-TATIONS ON HOW LONG AN IMPLIEDWARRANTY LASTS, OR (B) THE EXCLU-SION OR LIMITATION OF INCIDENTAL ORCONSEQUENTIAL DAMAGES, SO THEABOVE LIMITATIONS OR EXCLUSIONSMAY NOT APPLY TO YOU.

10. NO VARIATION OF TERMS: No person has theauthority to orally, in writing or in any other wayvary the terms, conditions or exclusions, of thiswarranty or to make any express warrantiesother than those contained herein.

11. LEGAL RIGHTS: This warranty gives you specificlegal rights and you may also have other rightswhich vary from state to state.

MONITOR PRODUCTS, INC.P.O. BOX 3408

PRINCETON, N.J. 08543

PART NO.1143 PRINTED IN JAPAN COPYRIGHT © 1987 MONITOR PRODUCTS, INC.,