MONITOR GF200Vented Heating System

Service Manual

GF 200

The information contained herein is proprietary to Monitor Products, Inc. shall not be disclosed, duplicated, nor

otherwise copied in whole or part for any other purpose without express written permission of the Legal Department

of Monitor Products, Inc. This data is issued to authorized Monitor Servicing Personnel for guidance in the

installation and maintenance of the subject product and is intended for use by authorized Monitor service personnel

only. Further, Monitor Products, Inc. reserves the right to make improvements and corrections and to alter

specifications of products described herein, at any time without prior notice.

P. O. BOX 3408

PRINCETON, NEW JERSEY 08543

MONITOR HEATING SYSTEMTable of Contents

Section 1: Description Page 1 - 71-1 Specifications; 1-2 Special Features; 1-3 Safety Features; 1-4Munual Gas Valve; 1-5 Automatic Gas Valve; 1-6 Gas ControlValve; 1-7 Burner; 1-8 Orifice; 1-9 Ignition Plug Unit; 1-10 IgnitionTransformer; 1-11 Flame Detector; 1-12 Combustion Blower;1-13 Heat Exchanger; 1-14 Flue Pipe; 1-15 Air Circulation Fan;1-16 Air Pressure Switch; 1-17 Overheat Protector Switch; 1-18Thermal Fuse; 1-19 Overcurrent Fuse; 1-20 Electrical System;1-21 Microprocessor; 1-22 Temperature Sensor; 1-23 SafetyMechanisms; 1-24 Cloth Covered Exhaust Pipe; 1-25 AirCirculation Fan Guard; 1-26 Slide Selector For The Reset Temp.

Section 2: Installation Page 92-1 Notice Before Installation; 2-2 Heater Installation; 2-3 FluePipe Clearances; 2-4 Installing An Extension Kit; 2-5 GasConnection; 2-6 Gas Conversion Procedure; 2-7 High AltitudeInstallation;

Section 3: Operation Page 113-1 Introduction; 3-2 Operating Specifications; 3-3 OperatingControls And Indicators; 3-4 Operation Control System

^

Section 4: Maintenance/Servicing Pagel 34-1 Cleaning The Cabinet; 4-2 Checking The Flue Pipe; 4-3Cleaning The Interior; 4-4 Cleaning The Blower Guard; 4-5Electric Motor Maintenance; 4-6 Checking The Burner Flame;4-7 Cleaning The Burner

Section 5: Troubleshooting Page 15 -16Resistance ValuesComponent Voltage Readings

Section 6: Electrical System Page 17-18SchematicWiring Diagram

MONITOR HEATING SYSTEMSection 1: Description

1-1 SPECIFICATIONS

Model No. GF 200Type of Appliance Fan type direct vent wall furnace

High 20,000BTU/hour (Nat.), 20,000 BTU/hour (LP.)Low 12,60QBTU/hour(Nat.), 13,400 BTU/hour (LP.)

Input Rating

High 16,OOOBTU/hour(Nat.), 16,000 BTU/hour (LP.)Low 10,200BTU/hour(Nat.), 10,900 BTU/hour (LP.)

Output Rating

Electrical Rating 120 V, 60 Hz, Less than 2 amperesPower Consumption 65 WattsHeated Air Delivery High 176 Cubic feet/minute

Low 113 Cubic feet/minuteFlue Pipe Hole 2.5 inches diameterDimensions Height: 25.6 inches

Width: 20.9 inchesDepth: 12.4 inches

Weight 55 poundsInlet Gas Supply Pressure Nat. Gas Max. 10.5 inch W.C. (267 mmH2O)

Min. 5.1 inch W.C. (130

Manifold Test Pressure

LP.

NatLP.

Gas

. GasGas

Max.Min.

13.011.03.153.19

inchinchinchinch

WWW.W

C.C.c.

(330(279

(80(81

mmH2O)mmH2O)mmHzO)mmHaO)

The minimum and maximum inlet gas supply pressures are for the purpose of input adjustment.

1-2 SPECIAL FEATURES

AUTOMATIC IGNITIONMEMORY BACK UP: Set memory can be kept in

case of power failure for up to 5 minutes.DUAL 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.AUTOMATIC RESET AFTER POWER FAILURE:

Heater will automatically resume operationafter power is restored.

INDICATOR LIGHTS: Easy-to-see signals showwhen heater is in operation, when timer isactivated, and when the burner is operating inlow or high modes.

CLEAN OPERATION: Products of combustion arevented outside.

CONSUMES NO ROOM AIR: Air for combustionis drawn from outside.

EASY INSTALLATION: Includes all parts requiredfor standard installation

1-3 SAFETY FEATURES

SAFE RE-LIGHTING: Heater will not restart untilits combustion chamber has cooled.

ELECTRICAL PROTECTION: Heater automaticallyshuts off in the unlikely event of a malfunction inthe electrical circuitry or disruption of the powersupply.

NO EXHAUST IN ROOM: Products of combustionare discharged outdoors.

FLUE PIPE: Outside air is drawn through a pipe-within-a-pipe venting system. This processpreheats combustion air and regains heat fromexhaust gases.

A CAUTION: ALTERNATE POWER SOURCESThe Monitor GF200 may not operate whenpowered by sources such as an auxiliarygenerator, UPS (Uninterrupted PowerSource), inverters, etc.This unit may not operate on a GFI (GroundFault Interrupter) power circuit.Check with your dealer for guidance onspecific applications.

MONITOR HEATING SYSTEMSection 1: Description

1-4 MANUAL GAS VALVEThe Manual Gas Valve is included with Heater.Connect the Manual Gas Valve to gas inlet at rearof the cabinet.Connection must be checked for gas-tightnessby means of leak detector solution, soap andwater, or an equivalent nonflammable solution, asapplicable.

Figure 1 -1

1-5 AUTOMATIC GAS VALVEThe Automatic Gas Valve is a normally closedtwo-stage, electro/mechanical device whicheither allows gas to flow to the burner or preventsit from doing so.When the valve is energized, a spring-loadedplunger is lifted to permit the flow of gas.Removing power from the valve drops theplunger down into the inlet to prevent gas frompassing through.

Coil

Spring

Body

Valve

1-6 GAS CONTROL VALVEThe Gas Control Valve provides constant gaspressure (volume) of two modes (High, Low) tothe burner.Operation of the Gas Control Valve is controlledby the Microprocessor.The specifications of the Gas Control Valve areas follows:

Type of gas Natural LPInlet Gas Supply 7.0 11.0Pressure (in W.C.)Manifold 3.15 1.34 3.19 1.42Pressure (in W.C.)Burn Mode High Low High Low

AdjustingScrew

Diaphragm

Body

Figure 1 -2

Manifold pressure can be cheked by removingbrass fitting from end of Gas Control Valve andinserting a guage with 1/8 NPT fitting.

Figure 1 -3

MONITOR HEATING SYSTEMSection 1: Description

1-7 BURNERThis burner is a Bunsen type with a speciallystructured flame port section, which shapes andpositions the flame, so it can be wrapped by thesecondary air flow, and burn completely.

Secondary Air

Flame Port SectionPrimary Air and GasMixture

Burner Port Assy

-Burner Assy

Mixing Plate

Burner Chamber

Secondary Air

Orifice Figure 1 -4

1-8 ORIFICEThe orifice is made of brass, inserted into thegas passage of the mixer, and fixed by the gaspipe.

/!\ WARNING:Use of incorrect orifice will create a fire hazardand damage unit.

NOTE:For altitude applications over 2,000 feet refer topage 9.

Gas Type

Shape, Stamp

Orifice size

Natural

(| t— 1Dia 2.38mm

LP

Q_

-J 1Dia 1.87mm

MONITOR HEATING SYSTEMSection 1: Description

1-9 IGNITION PLUG UNITThe Electrode is applied high voltage, anddischarges to the Grounding Rod to ignite theburner. The discharge gap between the Electrodeand the Grounding Rod is 3.5 ± 0.8 mm.

Flame Detector Rod

Electrode

Grounding Rod

Figure 1-6

1-10 IGNITION TRANSFORMERThe Ignition transformer generates high voltageusing 120 VAC power, discharged by the Ignitionplug to ignite the burner.

120VACPowerTerminal

High Tension Cord

Grounding Terminal

Figure 1 -7

/!\ WARNING:Do not touch when functioning. High voltage of15 kV is generated.

MONITOR HEATING SYSTEMSection 1: Description

1-11 FLAME DETECTORAn Electrode which detects that the burner hasbeen ignited, using the flame as a conductor,instantaneously detects when the flameextinguishes and shuts down the AutomaticValve.

1-12 COMBUSTION BLOWERThe Combustion Blower has a two stage intakefan. The intake fan draws in outside air thru theflue pipe for internal combustion.Burner modes control fan speeds and theSolenoid Damper in the Blower Casing. Thosefunctions are as follows:

COMBUSTION AIR CONTROLBurn Mode Fan Speed Solenoid Damper

High High Off (open)Low Low On (close)

Setting air flow for Solenoid Damper on Lowmode should read 5.5±0.5mmHzO for Nat.and 5.5±0.5mmH2O for LP.

1-13 HEAT EXCHANGERAn inlet at the top of the Heat Exchanger permitsthe heated air to travel from the CombustionChamber into the Heat Exchanger.An outlet, at the bottom of the Heat Exchanger,permits combustion by-products to be vented tothe Flue Pipe.While moving through the Heat Exchanger, thehot air within the Heat Exchanger heats theoutside metal walls. The hot metal walls, in turn,heat air that is pushed past the Heat Exchangerand is circulated into the room. An air baffle,directly in front of the Heat Exchanger, deflectsthe heated air downwards, and out, through theLouver assembly.

1-14 FLUE PIPEFlue Pipes are available in three (3) sizes. Thisprovides the flexibility to meet the installationrequirements for dwelling of various wallthicknesses. One side of the Flue Pipe containsa "T"-shaped fitting consisting of four ports. Thisside is mounted on the interior wall of thedwelling. The pipe side of the Flue Pipe is ventedoutside the dwelling. The Flue Pipe assemblyconsists of two concentric tubes. Outside air isdrawn through the cylindrical space between thetubes.As the cool air enters, it is heated by the hot airthat is exiting the system.A large-bore, flexible hose connects the air inletport on the Flue Pipe with the Combustion

Blower; a cloth-covered metal pipe connects theHeat Exchanger with the exhaust outlet on theFlue Pipe.

1-15 AIR CIRCULATION FANThe Circulation Fan is driven by a two speedmotor and is designed to circulate the heatedroom air. If the heater is running in low burnmode, the fan also runs at low-speed; in highburn mode, the fan advances to high-speed.Operation of the fan is controlled by theMicroprocessor and Fan Thermostat Switch.Physically assembled with a protective wirecage, the entire fan assembly is secured to abracket on the rear of the Heater Cabinet. Asheet metal conduit, at the rear of the Heater,protects the fan wiring from damage.

MONITOR HEATING SYSTEMSection 1: Description

1-16 AIR PRESSURE SWITCHThis switch consists of a rubber diaphragm whichsenses changes in air pressure (it is connected tothe Combustion Blower and the CombustionChamber) and a normally-open, micro switch.Should an abnormal pressure differential exist,the switch opens to disable the circuitry thatcontrols the supply of gas. Since the flow of gasto the Burner is cut off, the flame extinguishes,and the burner Status Indicators blink.This safety mechanism can be triggered byseveral conditions:

- Leak, loose, or broken tubing which connectsthe Air Pressure Switch with the CombustionBlower or the Combustion Chamber

- Clogged or blocked Air Line- Blocked or clogged Flue Pipe-Intake port of the Combustion Blower is

blocked- Combustion Blower is inoperable

1-17 OVERHEAT PROTECTOR SWITCHThe normally-closed Overheat Protector Switchsafeguards the heaters against damage due tooverheating.The Switch is rated 110°C (230° F). Should aMonitor overheat (internal temperatures risebeyond 110°C/230°F) the switch will open to shutdown the heater. After extinguishing the flame, theBurner Status indicators continue to blink. TheOverheat Protector Switch will automatically resetafter cooling down. Once the heater has cooled to90°C(194°F), the system can be restarted. Torestart the Monitor, proceed as follows:A. Press ON/OFF Switch to OFF.B. Allow heater to cool.C. Troubleshoot the cause of the overheat.D. Press ON/OFF switch to ON.E. Proceed with normal operation.

1-18 THERMAL FUSEShould the Overheat Protector Switch malfunction,and the heater be further overheated, the thermalfuse(internal temperatures rise beyond 1673C/333°F) melts and prevent further overheating.

1-19 OVERCURRENT FUSE2-amp., 125VAC, fuse protects the heater fromdamage resulting from power overloads. In theevent of a power surge or internal wiring hazards,the fuse opens and power to the heater is cut off.

1-20 ELECTRICAL SYSTEMElectrical power is supplied to the Monitor to runthe Microprocessor and the other electrically-energized component.

Electrical operation of the Monitor can be thoughtof as having the following eight(8) distinctphases: plug in; turn on; pre-purge; ignition; pre-combustion; heating; shutdown and post-purge.

1-21 MICROPROCESSORPrincipally consisting of a 64-pin IntegratedCircuit, the Microprocessor provides safetytimings, controls relays and provides clock andthermostat functions for the Monitor heater.

1-22 TEMPERATURE SENSORThe sensor which is capable of sensing roomtemperature within a range of 42°F to 96°F, canbe left mounted on the back of the heater cabinetor be wall mounted.

Approximately 61/2' (about 200 cm) of No. 20AWG Wire is supplied with the sensor to facilitatewall mounting the sensor in a favorable location.

I-23 SAFETY MECHANISMSSeveral safety mechanisms have been built intothe Monitor Heating System. These devicesprotect the user against personal injury, protectthe heater against damage, and shutdown theheater if a malfunction occurs.

1-24 CLOTH COVERED EXHAUST PIPEInsulating cloth covers are to be placed over allmetal surfaces of the Exhaust Line duringinstallation. Since combustion by-products arevented at elevated temperatures, the ExhaustPipe will become hot during operation. Theinsulating cloth covers protect the user from burnhazards associated with accidental contact withthese heated metal surfaces. During installationmake sure that all Exhaust Lines are tight. Do notoperate the heater without the insulating covers.

1-25 AIR CIRCULATION FAN GUARDThis guard is an integral part of the fan assembly.The guard protects the user against physicalinjury which could occur from accidental contactwith revolving metal fan blade.

1 -26 SLIDE SELECTOR FOR THE RESET TEMP.Once power is restored after power interruptionby power failure or by disconnecting heater plugfrom wall outlet, heater will resume operation inthe MANUAL mode and maintain roomtemperature according to the setting temperatureselected by using the selector for the resettemperature at the lower right hand side of thecabinet.

MONITOR HEATING SYSTEMSection 1: Description

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MONITOR HEATING SYSTEMSection 2: Installation

2-1 NOTICE BEFORE INSTALLATIONRefer to the service manual of the Monitor GF500

2-2 HEATER INSTALLATIONRefer to the service manual of the Monitor GF500

NOTE.-Use the cardboard template provided withthe Heater for flue pipe location.

Just in case the template was misplaced, theapproximate flue pipe hole location measurementsare follows:

The center of the Joint Pipeopening, which connectsto the Flue Pipe.

Back of Healer

Fuel Inlet

2-3 FLUE PIPE CLEARANCESRefer to the service manual of the Monitor GF500

2-4 INSTALLING AN EXTENSION KITRefer to the service manual of the Monitor GF500

2-5 GAS CONNECTIONRefer to the service manual of the Monitor GF500

2-6 GAS CONVERSION PROCEDURE1. Replace the natural orifice with the LP orifice

which is included in the conversion kit.Check orifice fitting for gas leak

•Slide the gas type selector on PCB to the LPposition.

•Check that the manifold pressure matches thefollowing values. If not adjust them -to thefollowing values using volume resister(VR1:HiVR2:Lo)on the PCB.

Hi:3.19"-S25 W.C.

Lo:1.42"-g-16 W.C.

After check, reinstall fitting and check for leaks.

2-7 HIGH ALTITUDE INSTALLATIONAll Units must be installed according to thefollowing chart to determine which orifice will beused for the appropriate altitude.

NATURAL GASUP TO 2000 feet No changing orifice(2.38mm)2000-6000 feet 2.28 mm drill size orifice

LP GASUP TO 2000 feet No changing orifice(1.87mm)2000-6000 feet 1.78 mm drill size orifice

</I\ WARNING:Do not use above 6000 feet.

MONITOR HEATING SYSTEMSection 3: Operation

3-1 INTRODUCTIONMonitor is an easy-to-operate vented gas heater.Routine operation features high BTU output,automatic adjustment of room temperature, lowpower consumption, and choice of automatic ormanual heater operation.This section provides all information necessary tooperate the Monitor Heating System. All operationprocedures specified should be performed in theorder in which they are described.

3-3 OPERATING CONTROLS AND INDICATORSSeveral controls and indicators are used tooperate the heater and to monitor its performanceas follows:

3-2 OPERATING SPECIFICATIONSThe following specifications apply to the operationof the Monitor GF 200.- Rated Efficiency: 81 %- Power Consumption: as follows

High Bum 65 watts, Low Burn 65 watts- Circulation Fan Output: 176 cubic feet/min- Potential Heating Area: 600 - 1200 sq. feet

RUN AUTO EC°LN°S

MY BURNER STATUS

Figure 3-1, INDICATORS

11 12 13 14 15

| TINOPERATION iTIMfeR SELECTORCLOCK

ON/OFF AUTO ECONOMY S|T ,st 2nd 3Vd 4thPLUS

16TIME/TEMP SET

TIME | | HOUR MINUTE SET CLEAR

'

21 22 23I

10 17 18

Figure 3-2, CONTROLS

19 20

NOTE: Refer to the service manual of the monitor GF500 in detail

3-4 OPERATION CONTROL SYSTEMRefer to the service manual of the monitor GF500

11

MONITOR HEATING SYSTEMSection 4: Maintenance / Servicing

4-1 CLEANING THE CABINETRefer to the service manual of the Monitor GF500

4-2 CHECKING THE FLUE PIPERefer to the service manual of the Monitor GF500

4-3 CLEANING THE INTERIORRefer to the service manual of the Monitor GF500

4-4 CLEANING THE BLOWER GUARDRefer to the service manual of the Monitor GF500

4-5 ELECTRIC MOTOR MAINTENANCERefer to the service manual of the Monitor GF500

4-6 CHECKING THE BURNER FLAMERefer to the service manual of the Monitor GF500

4-7 CLEANING THE BURNERRefer to the service manual of the Monitor GF500

13

MONITOR HEATING SYSTEMSection 5: Troubleshooting

GF200 Resistance Values

COMPONENT

Ignition Transformer (connector E/E)

Power Transformer (1)-Primary (AC 120V)

Power Transformer (l)-Secondary (AC 11V)

Power Transformer (l)-Secondary (AC 120V)

Power Transformer (2)-Primary (AC 120V)

Power Transformer (2)-Secondary (AC 22V)

Damper Solenoid (connector I/I)

Resistor (connector G/G)

Circulation Fan (R & BK)

Circulation Fan (BK & Y)

Combustion Blower (BK & BK)

Thermistor (connector Q/Q at 77°F)

Fuse 2A (read with fuse out)

Gas Control Valve (connector P/P)

Gas Solenoid Valve (connector UL)

Gas Solenoid Valve (connector M/M)

APPROX. OHMS

108,000

66

1.6

647

66

6.4

4,600

68

235

247.5

18

10,000

0.1

87

2,400

2,400

WARNING:

DISCONNECT HEATER FROM POWER SOURCEBEFORE MAKING ANY RESISTANCE TESTS.

NOTE: Refer to the service manual of the monitor GF500 in detail.

15

MONITOR HEATING SYSTEMSection 5: Troubleshooting

GF 200 Component Voltage Readings

COMPONENT

Thermistor

All readings taken withThermistor

Air Pressure Switch/Overheat Protector Closed

Air Pressure Switch/Overheat Protector Open

Damper Solenoid

Gas Control Valve High mode

Gas Control Valve Low mode

Circulation Fan High Speed

Circulation Fan Low Speed

Ignition Transformer

Power Transformer (1)(primary side)

Power Transformer (1)(secondary side)

Power Transformer (2)(primary side)

Power Transformer (2)(secondary side)

Combustion Blower High Speed

Combustion Blower Low Speed

Resistor

Gas Solenoid Valve

Gas Solenoid Valve

READING TAKEN AT

Q on PCB Sensor Disconnected

components connected to PCB.Q on PCB Sensor connected

J on PCB

J on PCB

I on PCB

P on PCB

P on PCB

R to BK

R to BK

E on PCB

AC 120V

AC 11VAC 120V

AC 120V

AC 22V

F on PCB

F on PCB (Q1 is off)

G on PCB

L on PCB

M on PCB

AC

0

110

110

93

110

110

11120

110

22

110

88

22

DC

5

1.5 - 3.2

105

8.7

6.2

105

105

16

MONITOR HEATING SYSTEMSecction 6: Electrical System'

17

1. Unless otherwise specified, unit of capacitorshould be yuF and unit of resistor should be Q.

2. Unless otherwise specified, diode should becat. NO. 1S2076A and resistor should be Jtype 1/4W or 1/8W.

MONITOR HEATING SYSTEMSection 6: Electrical System

WIRING DIAGRAM

GAS CONTROLVALVE

RESET TEMPSELECTOR

TF OHT

BLOCK DIAGRAMRESET TEMPSELECTOR

CAUTION:• Label all wires prior to disconnection when

servicing controls. Wiring errors can causeimproper and dangerous operation.Verify proper operation after servicing.

• If any of the original wire as supplied with theappliance must be replaced, it must bereplaced with a wire of at least a 105°Ctemperature rating.

CODEBkBlBrGOrRWYGr

COLORBlackBlueBrownGrayOrangeRedWhiteYellowGreen

MARKBMERFFMFRFTOHTPSRC1-4R1~4SLSPSV1SV2TA1-4TFTHTR1TR2

PARTS NAMECOMBUSTION BLOWER MOTORELECTRODECURRENT FUSECIRCULATION FAN MOTORFLAME RODFAN THERMOSTATOVERHEAT THERMOSTATAIR PRESSURE SWITCHRECTIFICATION CIRCUITRELAYSOLENOIDSPARKERSOLENOID VALVE 1SOLENOID VALVE 2TRIACTHERMAL FUSETHERMISTORTRANSFORMER 1TRANSFORMER 2

•3C- Grounded inside chassis at bottom of unit.

GAS CONTROLVALVE

18

MONITOR HEATING SYSTEMParts List

NO.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

18-1

18-2

18-3

18-4

19

20

21

22

23

24

25

26

27

28

29

30

31

32

PARTS NAME

ADJUSTABLE LEG

TRAY

AIR SUPPLY HOSE A

AIR SUPPLY HOSE B

ORING(PIO)

AUTOMATIC GAS VALVE UNIT

GAS PIPE ASSY

GAS INLET JOINT

ORING(P11)

GAS PIPE JOINT

0 RING (P14)

MANUAL GAS VALVE

GASKET 1

BURNER CHAMBER ASSY

WINDOW PACKING

MICA PLATE

MICA HOLDER

PLUG BASE ASSY

FLAME DETECTIVE PLUG ASSY

IGNITION ELECTRODE ASSY

PLUG HOLDER

PLUG PACKING

GASKET 5

GASKET 6

COMBUSTION CHAMBER ASSY

ORIFICE (NAT GAS)

ORIFICE (LP GAS)

GASKET 4

HEAT EXCHANGER ASSY

GASKET 6

EXHAUST DUCT ASSY

0 RING (P39)

GASKET 2

AIR PRESSURE SWITCH

AIR LINE

SPARKER

PARTS NO

5019

6800

6101

6102

6604

6801

6802

6803

6609

6804

6805

6601

6806

6807

6616

6617

6618

6808

6809

6810

6622

6623

6811

6812

6813

6814

6815

6120

6816

6122

6630

6176

6817

6818

6819

6634

QTY

4

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

REMARKS NO.

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

PARTS NAME

PRESSURE DETECTIVE PIPE

BURNER ASSY

MIXING PLATE ASSY

BURNER PORT ASSY

FLAME HOLDER

BURNER PACKING

ORIFICE HOLDER

ORIFICE GUIDE

GASKET 7

BLOWER ASSY

BLOWER MOTOR

SOLENOID

SUCTION CASE A

SEAL PACKING

PWB SPACER CLIP A

PWB SPACER CLIP B

PWB ASSY

CABINET ASSY

RUBBER BUSH

CORD BUSHING

POWER SUPPLY CORD

CARRYING HANDLE

SENSOR ASSY

SLIDE SWITCH ASSY

SLIDE SWITCH PANEL

KNOB

WIRING GUARD

FAN BLADE

CIRCULATION MOTOR

BLOWER GUARD ASSY

UNDER COVER

LOUVER ASSY

FRONT COVER

LAMP PANEL

SWITCH & LAMP ASSY

FAN THERMOSTAT

PARTS NO.

6820

6821

6822

6823

6824

6825

6826

6643

6827

6828

6829

6142

6143

6144

6461

6462

6830

6831

6136

6833

6648

6138

6186

6649

6207

6208

6263

6180

6262

6261

6832

6210

6833

6834

6835

6152

QTY

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

14

1

1

2

1

1

2

1

1

1

1

1

1

1

1 .

1

1

1

1

1

1

REMARKS

NOTE : TO OBTAIN PARTS, CONTACT YOUR DEALER OR,

MONITOR PRODUCTS, INC. P.O. BOX 3408, PRINCETON, NEW JERSEY 08543

19

MONITOR HEATING SYSTEMParts List

NO

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

PARTS NAME

OVERHEAT THERMOSTAT

THERMAL FUSE

TOP COVER

WALL CLAMP

VENT CONNECTOR

PIPE HOLDER

AIR SUPPLY HOSE ASSY

FLUE PIPE ASSY

SCREW CAP ASSY

OUTSIDE FLANGE

OUTSIDE PACKING

EXHAUST OUTLET CAP

AIR PORTO RING

AIR OUTLET CAP

HOSE BAND

AIR DAMPER

OWNER'S GUIDE

ORIFICE(2~6000FT LP)

ORIFICE( 2 -600OFT NAT)

TRANSFORMER-2

AIR LINE B

POWER TRANSFORMER

PARTS NO.

6463

6836

6837

6194

4004

4006

6145

6841

6148

6148

6148

4014

4016

4805

4008

6839

6840

6844

6843

6663

6845

6251

QTY

1

1

1

2

1

1

1

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

REMARKS NO. PARTS NAME PARTS NO. QTY REMARKS

NOTE : TO OBTAIN PARTS, CONTACT YOUR DEALER OR.

MONITOR PRODUCTS, INC. P.O. BOX 3408, PRINCETON, NEW JERSEY 08543

20

MONITOR HEATING SYSTEMExploded Views and Parts List

^

21

MONITOR HEATING SYSTEMExploded Views and Parts List

22