MONITOR HEATING SYSTEMS Table of Contents Section 1: Description 1-1 1-2 1 -3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 1-11 1-12 1-13 1-14 1-15 1-16 1-17 1-18 1-19 1-20 Page 1~10 Specifications (M-2400) Special Features (M-2400) Safety Features (M-2400) Specifications (M-2200) Special Features (M-2200) Safety Features (M-2200) Description Spill Tray Heater Cabinet Combustion System Combustion Chamber Burner Pot Combustion Ring Assembly Flame Sensor Igniter Combustion Air System Flue Pipe Combustion Blower Motor (M-2
MONITOR HEATING SYSTEMS Table of Contents Section 4: Maintenance 4-1 4-2 4-3 4-4 4-5 Page 39—42 Introduction Periodic Maintenance Inspect Exhaust /Air Piping Verify Igniter Operation Clean Fuel Constant Level Valve Filter 4-6 4-7 4-8 4-9 Cleaning Fusible Link Valve Intake Corrective Maintenance Replacement of Fuses Fuel Contamination Section 5: Servicing 5-1 5-2 5-3 5-4 5-5 5-6 5-7 Page 43—47 Introduction Measurement of Fuel Flow rate Removal of Water Deposits and Contaminants from Fuel Constant Lev
MONITOR HEATING SYSTEMS Section 1: Description 1-1 SPECIFICATIONS Model Monitor 2400 Fuel Type Crystal Clear Kerosene Heater Efficiency 93%* Heat Rating High : 43,000 BTU/hour H.Medium : 32,000 BTU/hour L.Medium : 24,600 BTU/hour Low: 16,200 BTU/hour Heater Output High : 37,200 BTU/hour H.Medium: 26,900 BTU/hour L.Medium: 20,700 BTU/hour Low: 13,600 BTU/hour Fuel Tank Separate (Not supplied with heater) Fuel Consumption High : 0.319 Gallon/hour H.Medium: 0.24 Gallon/hour L.Medium: 0.
MONITOR HEATING SYSTEMS Section 1: Description 1-4 SPECIFICATIONS Model Fuel Type Heater Efficiency Heat Rating Heater Output Fuel Tank Fuel Consumption Power Source Power Consumption Heated Air Delivery Vent Pipe Hole Dimensions Weight Monitor 2200 Red dyed or Clear Kerosene or Low Sulphur *1 Oil 93%* High : 22,000 BTU/hour H.Medium : 17,400 BTU/hour L.Medium : 12,400 BTU/hour Low: 9,600 BTU/hour High: 18,260 BTU/hour H.Medium : 14,440 BTU/hour L.
MONITOR HEATING SYSTEMS Section 1: Description 1-7 DESCRIPTION The Monitor heaters are composed of the following: a spill tray, a cabinet, a combustion system, an air circulation system, a fuel delivery system, electrical and electronics systems and a variety of safety mechanisms. 1-8 SPILL TRAY The Spill Tray: — Protects the floor from damage resulting from fuel spillage. — Provides a secure, tip-resistant heater base. Metal retainers (2) secure the heater to the Spill Tray.
MONITOR HEATING SYSTEMS Section 1: Description 1-17 FLUE PIPE The Flue Pipes is adaptable in three (3) sizes. This provides the flexibility to meet the installation requirements for walls of various thicknesses. The Flue Pipe is two Sections, Flue pipe A and Flue pipeB. air within the exchanger heats the outside metal walls. The hot metal walls, in turn, heat air that is pushed past the exchanger and is circulated into the room.
MONITOR HEATING SYSTEMS Section 1: Description 1-22 FUEL DEUVERY SYSTEM Fuel Delivery is a very important aspect of the Monitor's operation. The fuel flow must be maintained at a level corresponding to the burn mode, so that combustion can be conducted efficiently. Fuel moves by gravity-flow from the external fuel storage tank or the capsule fuel tank to the Fuel Constant Level Valve. The Solenoid Pump meters the flow of fuel from the Fuel Constant Level Valve to the Burner Pot.
MONITOR HEATING SYSTEMS Section 1: Description During installation make sure that all Exhaust Lines are tight. Do not operate the heater without the insulating covers. 1-26 SOLENOID PUMP The Solenoid Pump, mounted on the Fuel Constant Level Valve, and controlled by a microprocessor, delivers four fuel flow modes (High, Medium-High, Medium-Low, Low) to the Burner Pot. 1-32 AIR CIRCULATION FAN GUARD This guard is an integral part of the fan assembly.
MONITOR HEATING SYSTEMS Section 1: Description 1-35 Revolution control of combustion blower motor -o 5V IC4 TRIAC L 01 JT fSfj 1 Hole 1C microprocessor Fig. 1-1 As shown in Fig.1-1, the current-carrying ratio for the combustion blower motor shall be performed by the phase control, TRIAC, Q1. The combustion blower motor has a built-in hole 1C of which input signal is entered to the microprocessor through the comparator IC8.
MONITOR HEATING SYSTEMS Section 1: Description 1-36 COMBUSTION BLOWER MOTOR The combustion blower has a four stage intake fan Burner modes control fan speeds. The combustion air controls are as follows: Table 1-2 COMBUSTION AIR CONTROL Burn Mode Fan Speed (r.p.m.) High 2,975 Medium-High 2,550 Medium-Low 2,025 Low 1,800 1-37 OVERHEAT PROTECTOR SWITCHES Connected in series, two (2) normally-closed Overheat Protector Switches safeguard the heaters against damage due to overheating.
MONITOR HEATING SYSTEMS Section 1: Description UJ en z o CO m S.
MONITOR HEATING SYSTEMS Section 1: Description | M-2200 AIR CIRCULATION FAN FLUE PIPE ^•^U^-S FLAME SENSOR CAPSULE FUEL TANK EXTERNAL FUEL TANK COMBUSTION RING BURNER POT AIR PRESSURE SWITCH \CONSTANT LEVEL VALVE Figure 1-3 ELEMENTS OF COMBUSTION SYSTEM NOTE: Capsule tank cannot be used in Connecticut.
MONITOR HEATING SYSTEMS Section 2: Installation RECOMMENDED TOOL KIT FOR MONITOR HEATER SERVICE TECHNICIANS 1) #2 Phillips Head Screwdriver 2) Steel Tape Measure 3) Felt Tip Pen or Pencil 4) Caulking Material (exterior grade) 5) Electrical Drill (reverse capability recommended) 6) Hole Saw, Saber (Jig) Saw, or other appropriate tool for cutting a 2.
MONITOR HEATING SYSTEMS Section 2: Installation NOTE: 2-5 FUEL TANK REQUIREMENTS WARNING: INSTALLATION OF ANY REMOTELY LOCATED FUEL TANKS MUST COMPLY WITH ALL LOCAL STANDARDS AND/OR BUILDING CODES. D. E. F. Heater fuel (crystal clear kerosene only) can be stored in remotely located storage tanks ranging from 55 gallon drums to 275 gallon tanks. When using large tanks a pressure regulator with a max. of 2.
MONITOR HEATING SYSTEMS Section 2: Installation NOTE: After using the installation template as a guide for drilling the flue pipe hole, the Monitor Flue Pipe can be normally installed according to the illustration procedure in the Monitor Manual. 2-9 HEATER INSTALLATION In choosing a location for your heater, the following guidelines must be considered: • The heater MAY be installed on combustible floors.
MONITOR HEATING SYSTEMS Section 2: Installation Table 2-1 Installation Classification for using Damper Diameter and Processing of P.W.B. Jumper Wire CJ Altitude (feet) Installation Classification 0~3,000 Air Damper Up to 1 bend(90°elbows) with no extension 3,000—5,000 Blower Damper STANDARD Used Used Up to 1 bend(90'elbows) with extension kit length : 0-73" 2 bends with extension kit length : exceed 20" or 3 bends EXTENSION Used Used P.W.B.
MONITOR HEATING SYSTEMS Section 2: Installation Table 2-2 Installation Classification for using Damper Diameter and Processing of P.W.B. Jumper Wire CJ 0~700m 0—2330 ft Altitude 700— 1400m 2330— 4660ft 1400— 2100m 4660— 7000ft Air Damper Air Damper Air Damper Up to 1 bend (90'elbows) with Extension kit length of 0-73 in. STANDARD USED EXTENSION USED NOT USED Up to 2 bends (90°elbows) with Extension kit length of 0-38 in. STANDARD EXTENSION NOT USED Up to 3 bends (90'elbows) with No Extension.
MONITOR HEATING SYSTEMS Section 2: Installation In case the flue pipe will be installed in the wall thickness more that 8.5in., the optional part, Flue Pipe Kit should be used. For the types of flue pipe kits and their applicable wall thickness, please refer to Table 2-3. Applicable Wall Thickness of Flue Pipe. The flue pipe attached to the heater can be installed in the wall thickness from 0.6in.(1.5cm)up to 8.5in.(22cm). Standard Flue Pipe Thickness of walls 1.5cm ~ 12.5cm 0.
MONITOR HEATING SYSTEMS Section 2: Installation FLUE PIPE CLEARANCES The vent terminal of a direct vent appliance with an input of 50,000 Btu per hour or less shall be located at least 9 inches from any opening through which flue gases could enter a building. Flue pipe installations should provide for venting to an unconfined space through which there is a free flow of outdoor air. Clearances to adjacent walls or obstacles must comply with the requirements shown below.
MONITOR HEATING SYSTEMS Section 2: Installation IMPORTANT: 2-10 INSTALLING AN EXTENSION KIT Installing an Extension Kit requires the construction of an air line and the exhaust line. The air line is connected between the Air Supply Elbow at the rear of the heater and the air inlet port on the Flue Pipe. Similarly, the exhaust line is connected between the joint pipe at the rear of the heater, and the exhaust port on the Flue Pipe.
MONITOR HEATING SYSTEMS Section 2: Installation Max lengths and bends allowable using extension kits. Extension kits are available in four different lengths. For exact dimensions refer to the accessories catalog.
MONITOR HEATING SYSTEMS Section 2: Installation 2-11 TYPICAL MONITOR LIFTER PUMP INSTALLATIONS For more detailed information look under Kerosene Lifter manual. NOTE: The same minimum and maximum pump heights must be maintain as is with other fuel tanks. Figure 2-15.
MONITOR HEATING SYSTEMS Section 2: Installation 2-12 USES FOR THE ELBOW ADAPTER KIT F Convert from Monitor 20/30 to 2200/2400 using an elbow adapter Kit (part#8213A) and utilizing existing flue pipe installation. NOTE: PARTS UST EXPLODED Name No Ref. of , in No.
MONITOR HEATING SYSTEMS Section 2: Installation To install a large capacity, gravity fed external tank, follow the instructions below. Use of a qualified installer is recommended. 55, 100, and 250 gallon tanks must contain: • • • • • • • • • • • • • Installation height of the bottom of the fuel tank should be 16 inches or more above the floor surface on which the heater stands. This insures that inlet fuel pressure will be sufficient.
MONITOR HEATING SYSTEMS Section 2: Installation Outdoor Fuel Tank Shut-off Valve Flare Connection 1> %• Flare Connection Fusible Link Valve Connection // Fuel Filter // maximum (2.6m) (0 4m) ' f OD Coppor Tubing CAUTION: Ensure that there is no fuel leakage from any of the fuel line fittings and connections. NOTE: Fuel tank must be a minimum 3 feet away from flue pipe. When choosing a filter or a replacement element do not use the felt type elements.
MONITOR HEATING SYSTEMS Section 2: Installation BACK GUARD 2. Install Top Back Guard Place Top Back Guard so that the dent is to the left as viewed from the back of heater. Attach by placing and tightening the screws in the holes provided. The BACK GUARD KIT is available as an accessory item. For more details, please contact your local dealer distributor or Monitor Products, Inc. How to install the back guard M2400 BACK GUARD KIT : Parts No.8306 Top Back Guard PARTS LIST EXPLODED Screws Dent REF. No.
MONITOR HEATING SYSTEMS Section 2: Installation CC CO \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ I o CO co •o o CD m CO 1 CO co o CO CO 1 til tN a •a 00 § CN 25
MONITOR HEATING SYSTEMS Section 2: Installation 2. Move the location of the Room Temperature Sensor Detach the Room Temperature Sensor, which is secured by a tapping screw, from the upper part of the heaters back. Relocate the sensor to below the bottom slit of the side back guard. Secure it by tightening the tapping screw into hole provided. (Fig. 2-19) the Room Temp Sensor should be moved as described above so that it will read the room temperature more accurately.
MONITOR HEATING SYSTEMS Section 2: Installation M-2200 Extension installation without the extension pipes through the back guard knockout holes. Longitudinal Transversal to the right Transversal to the left • The knob direction of the fuel valve, if installed should be adjusted not to touch the back guard. Fig.
MONITOR HEATING SYSTEMS Section 3: Operation — Circulation Fan Output: 388 cubic feet/min. — Fuel source : Remote, separate tank — Potential heating area : 900-3200 sq. feet 3-1 INTRODUCTION Monitor is an easy-to-operate vented kerosene heater. Routine operation features high BTU output, automatic adjustment of room temperature, low fuel and power consumption, and choice of automatic or manual heater operation. *The energy from the combustion process is released in the form of heat and vaporized water.
MONITOR HEATING SYSTEMS Section 3: Operation — Circulation Fan Output: 176 cubic feet/min. — Fuel source : Remote, separate tank(1.32 U.S. gal., capsule tank optional) — Potential heating area : 600-1200 sq. feet *The energy from the combustion process is released in the form of heat and vaporized water.
MONITOR HEATING SYSTEMS Section 3: Operation 3-5 OPERATING CONTROLS AND INDICATORS Several controls and indicators are used to operate the heater and to monitor its performance as follows: 11 13 15 5 7 6 8 14 10 16 17 23(M-2200 3 only) 18 19 2 22 4 21 20 Fig. 3-1 ITEM NO CONTROL OR INDICATOR. FUNCTION Iteml OPERATION Indicator Light Light to indicate that power has been applied to heater.
MONITOR HEATING SYSTEMS Section 3: Operation ITEM NO CONTROL OR INDICATOR. FUNCTION ItemG TEMP Indicator Light Lights when heater is running and Digital Window is showing the temperature. Item/ AM Indicator Light ItemS PM Indicator Light Item9 Digital Display Indicates SET and ROOM temperature when heater is running, and indicates time when heater is Off. Indicates time and temperature for automatic operation setting.
MONITOR HEATING SYSTEMS Section 3: Operation ITEM NO CONTROL OR INDICATOR. FUNCTION Iteml 5 SELECT push-button switch This switch will be used for the selection of the DAY SET, CLOCK SET, TIMER SET and also for the day of the week (Mon, Tue, Wed, Thu, Fri, Sat, Sun). Iteml 6 TIME push-button switch This switch is used to set time and change display over. TEMP push-button switch This switch is used to set temperature and change display over, in 2 degree increments.
MONITOR HEATING SYSTEMS Section 3: Operation ITEM NO CONTROL OR INDICATOR. FUNCTION Item 21 AUTO push-button switch Places heater in automatic mode of operation. AUTO indicator lights to confirm automatic operation. Assuming that the heater has been properly programmed and heater is in ON position, heater will operate automatically. When pressed again, AUTO indicator goes out and then heater will operate in MANUAL mode. During manual operation, the user turns heater ON and OFF, at will.
MONITOR HEATING SYSTEMS Section 3: Operation 2. Reducing heat loss during the prepurge and postpurge cycles. 3. Reducing inefficient combustion associated with start up and shut down. 4. Prolonging component life by decreasing expansion and contraction of internal parts. 3-8 MANUAL HEATER OPERATION Operation of the heater is under the direct control of the user (heater will not operate automatically).
MONITOR HEATING SYSTEMS Section 3: Operation Follow same steps as above, set the programs of Tuesday. Set the programs of remaining days in the same manner. 3-10 PROGRAMMING THE WEEKLY TIMER FOR AUTOMATIC HEATER OPERATION The Monitor 2400/2200 Heating System is capable of providing up to 4 different temperature setting for 4 different times of each day of the week. Not all 4 settings have to be used; 2, 3 or 4 settings can be used.
MONITOR HEATINGSYSTEMS Section 3: Operation ation before power interruption, the initial setting temperature (60°F) in case of automatic operation before power interruption. When the heater resumes operation, The Display Window will show 88:88 indicating the need to reset the clock and the day of the week for automatic operation. 3-11 HEAT SENSOR Heat Sensor is located on the rear of the cabinet. It is recommended to leave the sensor in its original mounted position.
MONITOR HEATING SYSTEMS Section 3: Operation STEP4: NOTE: 3-16 RECOVERY FROM BLOWN FUSE MOVE TO TOP OF NEXT COLUMN Check for Cause of Overheating Overheating is usually caused by objects All electrical components of the Monitor heater protected against power overloads and electrical malfunctions by a 2-amp fuses and a 10-amp fuse. Should a fuse blow, the recovery procedure in outlined below: that impede free air circulation.
MONITOR HEATING SYSTEMS Section 3: Operation 38
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MONITOR HEATING SYSTEMS Section 4: Maintenance cally in order to sustain the efficiency of the Monitor Heating Systems. 4-1 INTRODUCTION Heater maintenance is divided into two classifications; periodic maintenance is required to maintain the heater in good operating condition; corrective maintenance is necessary to repair a malfunction.
MONITOR HEATING SYSTEMS Section 4: Maintenance Activity Remarks Material Inspect Combustion Ring. Flame Sensor Rod, Baffle, and Burner Cloth.(Suggested frequency every 3 years). Clean all carbon deposits. Replace if excessively worn, warped, or cracked. NOTE: If any gaskets are torn when Components are removed, the gasket must be replaced. Clean Combustion Chamber (every 3 years) Vacuum all carbon deposits from interior of chamber.
MONITOR HEATING SYSTEMS Section 4: Maintenance 4-4 VERIFY IGNITER OPERATION Visually inspect Igniter Operation WARNING: CLOSE SHUT-OFF VALVE OF THE EXTERNAL FUEL TANK TO AVOID DRAINING ALL FUEL FROM TANKS. WARNING: HEATER IS OPERATIONAL DURING THIS INSPECTION. AVOID DIRECT CONTACT WITH ANY HEATED OR ELECTRICAL COMPONENT. NOTE: STEP1: Prepare for Inspection Remove Front Cover and Louver Assembly. Power should be OFF during the performance of this procedure. STEP1: Disassembly A.
MONITOR HEATING SYSTEMS Section 4: Maintenance 4-6 CLEANING FUSIBLE LINK VALVE INTAKE (In case of the Fusible Link Valve is mounted) At periodic intervals, the fitting on the Fusible Link Valve should be cleaned to prevent any accumulation of foreign materials from clogging the inlet This is accomplished as follows: STEP2: Installation of New Fuse A. Install a new fuse into the fuseholder. The fuse must be a 250-V, 2 amp or a 250-V, 10 amp type as marked on the printed circuit board.
MONITOR HEATING SYSTEMS Section 5: Servicing 5-1 INTRODUCTION Servicing is required when the Monitor Heater is not running at proper efficiency. This section covers possible causes and corrective procedures for efficiency loses. Signs of improper heater efficiency and performance would be: — Yellowish lazy flame — Smoke from flue pipe exhaust — Heavy soot and carbon build up in combustion chamber — Lowered heat output. 5-2 MEASUREMENT OF FUEL FLOW RATE Fuel flow rates are preset and sealed.
MONITOR HEATING SYSTEMS Section 5: Servicing 2. Turn counter-clockwise to remove combustion ring. If ring does not turn, pull up slightly to loosen retaining clips. 3. Use wire brush to clean inside of combustion chamber. Vacuum and wipe clean with a waste cloth. 4. If tar is present on the burner bottom, remove the tar by using a flat-bladed screw driver or wire brush.then clean the area by using a vacuum cleaner etc. NOTE: Make sure all air inlet openings are clear.
MONITOR HEATING SYSTEMS Section 5: Servicing NOTE: Make sure the position of flame detector rod is centered between combustion ring and burner pot before reassembling. (See Figure 5-5) Flame Detector Rod Combustion Ring Assy a* V' Combustion Chamber Gap 4mm(0.16") or more Burner Figure 5-5 NOTE: If flame rod is sooted or has a carbon coating it can be cleaned with steel wool or a find sand paper. For minor adjustments of flame detector rod without disassembling any components: 1.
MONITOR HEATING SYSTEMS Section 5: Servicing 5-6 CLEANING THE BURN CHAMBER & BURNER 6. POT M-2200 Apply glue (P/No.8217) on the burner bottom as shown in Figure 5-6. Under normal running conditions, soot will not deposit in great quantities inside the burner, and a light covering of soot will not affect the performance of the unit thus it need not be cleaned. However, rf heavy soot built up does occur the unit should be opened and cleaned.
MONITOR HEATING SYSTEMS Section 5: Servicing NOTE: Make sure the position of flame detector rod is centered between combustion ring and burner pot before reassembling. (See Figure 5-7) Combustion Ring Assy Flame Detector Rod Bum Chamber Gap 3mm(0.12") or more Burner Pot Figure 5-7 NOTE: If flame rod is sooted or has a carbon coating it can be cleaned with steel wool or a find sand paper. For minor adjustments of flame detector rod without disassembling any components: 1.
MONITOR HEATING SYSTEMS Section 6: Troubleshooting | M-2400 Resistance values COMPONENT APPROX. OHMS Igniter (connector B/ B) 12.7 Power Transformer—Primary (AC 120V) "Blue" & "Blue" Connector H 141 Power Transformer—Secondary (AC 12V) "Yellow" & "Yellow" Connector R 1.
MONITOR HEATING SYSTEMS Section 6: Troubleshooting | M-2400 Component Voltage Readings COMPONENT READING TAKEN AT Thermistor Q on PCB Sensor disconnected Thermistor Q on PCB Sensor connected Air Pressure Switch/ Overheat Protector Closed Connector J Air Pressure Switch/ Overheat Protector Open Connector J Solenoid Pump K on PCB Circulation Fan High Speed WH to BK 110 Circulation Fan Low Speed WH to BK 91 Igniter Bon PCB 110 Power Transformer (primary side) AC 120V 110 Power Transfor
MONITOR HEATING SYSTEMS Section 6: Troubleshooting | M-2200 Resistance values COMPONENT APPROX. OHMS Igniter (connector B/B) 16.8 Power Transformer-Primary (AC 120V) "Blue" & "Blue" Connector H 141 Power Transformer-Secondary (AC 12V) "Yellow" & "Yellow" Connector R ^.
MONITOR HEATING SYSTEMS Section 6: Troubleshooting TEST POINT VOLTAGE \Operation \Mode Preparation Igniting Pre-purge Pre-heat low med 2 min. Pre-burning 1 (C.F.M:Off) Pre-burning 2 (C.F.M:Low) Test PointN, TP2 5V±10% 5V±10% 5V±10% 5V±10% 5V±10% TP3 12V±30% 12V±30% 12V±30% 12V±30% 12V±30% TP4 1.5-3.2V 1.5-3.2V 1.5-3.2V 1.5-3.2V 1.5-3.2V TP5 pulse pulse pulse pulse pulse TP6 OV OV infinitly variable 1.2V min. 1.2V min.
GENERAL CHECKS Is power available in wall outlet? Is power Plug inserted in wall outlet? Has there been a power interruption? (Display window shows 88:88) Has Circulation Fan stopped? Is fuel in tank? Tank valve open? Has Fuel Constant Level Valve Set Lever press and roiMro? Is Operation Switch on? Is Deration mode on Manual? Is set temperature in High position? Is Shut-off Valve 'open1 ? Is child lock feature engaged (disengaged)? SYMPTOM CHECK1 RESULT No ignition CHECK2 - I RESULT I • CHECKS RES
CORRECTIVE MEASURE REASON Open valve. Shut-off Vah/e closed Tripped safety on Fuel constant level vafve. Reset Fuel constant level varve. Burner joint dogged. (Fuel IJne passageway into the Combustion Chamber near base of Burner POL) Clean burner joint J-4 Pump strainer dogged Clean pump strainer Fuel not fed because of surface tension of water. Discharge water. — Water gathering in fuel tank. ] Failure of Solenoid Pump. Make General Checks above.
SYMPTOM _ duced when set "High." RESULT CHECK1 placed horizontally level? -1 Normal. Is flue pipe too long, or extension kit has too many bends. (See Section 2, INSTALL) I RESULT CHECKS Does Combustion Fan work property? CHECKS RESULT CHECK4 RESULT •H N°™ai- - ?^^e r N-* - "jrp.wi -H CHECKS RESULT Yes according to •specifications?' - - aSSsss* T Y~ — Process jumper wire'CJ'on P.W. B.
SYMPTOM CORRECTIVE MEASURE REASON Is window curtain too dose to the rear of unit? is Circulation Fan Guard dusty? Curtain or other obstruction covers circulation air inlet. dean guard. Keep curtain from unit H No. Does circulation fan Made have heavy dust build up? Are proper clearances being maintained around unit Remove obstacles to maintain Failure of P.C.B Replace or check P.C.8 Are garments being dried on or in front of heater? Circulation fan failed. I Replace Fan Motor.
CHECKS RESULT REASON CHECK4 CORRECTIVE MEASURE Replace fuse.(F1) NOTE : IF problem is found to be in PCB, do not attempt to repair, replace and send PCB thru your disttibutor to MPI for repair. - Failure of transformer- 1. — Failure of dkxje. (DS-D6) - Failure of capacitor. (Oil) Replace transformer-1. Failure of IC2 Yes. Failure of capacitor. (C12) ~iI Disconnect connector marked CN1 Going to the SWITCH & LAMP ASSY and then jump T1 to TSofCNI on PCB. "P. YnYes.
SYMPTOM CHECK1 RESULT CHECK2 RESULT CHECKS RESULT CHECK4 RESULT CHECKS CORRECTIVE MEASURE REASON n No ignition. Failure of micfOprocessor.(ICl) Failure of transistor array.(IC12) Failure of relay. (RID Fuse open.(F2) Replace Fuse.(F2) Igniter open. Replace igniter. Igniter is not evenly red is there more thanWdcTPS andlC12 (®pin)? Mo. Ho Replace igniter. | ' array.(ICl2) - • - - J Does solenoid pump work? 1 M~ N °- (CS) - Incorrect wiring of combustion biower.
SYMPTOM REASON CHECK1 CORRECTIVE MEASURE (R5-R22 R103 R104) — — — — — — " . Failure of capacitor. (C6^8) Failure of zener diode. (ZD1) Failure o( diode. (D2) Failure of transistor.(Q2.Q3) Failure of comparator. (IC7) Failure of transistor array.(IC12) Failure of photo transistor.(!C6) Failure of fuel supply parts. Check fuel supply parts.
RESULT CHECKS RESULT REASON CORRECTIVE MEASURE Failure of resistor. (R25-R28) Failure of transformer-!. Replace transformer-!. Failure of capacitor. (C15-C17) Failure of resistor. (R23.R30-R32) Failure of resistor. (F136, R78) Failure of capacitor. (C33) Failure of diode. {D16, D18) Failure of transistor array.
RESULT CHECKS RESULT CHECK4 REASON CORRECTIVE MEASURE Failure of resistor. (R64, R6S) Failure of capacitor. (027, C28) Conned 10KQ resistor at [Q] pins, and then, set temperature from Low to High. Failure of microprocessor.(tCI) Failure of photo transistor. (1 Co) Failure of transistor array.(1C12) Failure of solenoid pump. Replace solenoid pump. Failure of microprocessor.(ICl) Failure of photo triac.(IC3) Failure of transistor array.(IC12) Failure of circulation fan motor.
MONITOR HEATING SYSTEMS Section 6: Troubleshooting INDICATION OF FAILURE MODE Digital Display The Reason of Indication Trouble Point At pre-purge, Flame rod is sensing flame when there should be none. Flame sensing circuit, grounded flame rod or pinched wire. cnc L UJ After power is turned on, power supply to the microprocessor timing circuit is incorrect. Timer clock circuit bad or power cycles (hertz) to unit above or below acceptable levels.
MONITOR HEATING SYSTEMS Section 7: Electrical System Schematics 63
Monitor 2400 : Room Heater products since February 2004 Monitor 2200 : All Room Heaters J :: 3 i J. «• J. icw IOM TiKTcie TCJ 5XXXX X ><><>< )<)()<)<) OOOC«)«)(! 1. Unless otherwise specified unit of capacitor should b« uf and unit of resistor should be D. 2.
MONITOR HEATING SYSTEMS Section 7: Electrical System IM-2400 Printed Circuit Wiring Diagram CONNECTION OF LEAD WIRES WEEKLY TIMER CONTROL Tue Wed Thu 8 O t! Sat CD CD SET ROOM CD BURN TEMP AM Sun LUS RM OPERATI MYttT aoosEt nirasET TIMER SELECTOR HOUR MINUTE (v) DOWN UP Control Panel Printed Wiring Board Fan Thermostat lo oi P |o| 1 Main Printed Wiring Board |o o o| AC120V Capacitor for Circulation Motor :=iJ | Dctgv Transformer " Blower for Circulation K W M N SensorfThermi
MONITOR HEATING SYSTEMS Section 7: Electrical System IM-2200 Printed Circuit Wiring Diagram CONNECTION OF LEAD WIRES WEEKLY TWER CONTROL ^ O SET AM PM Control Panel Printed Wiring Board Fan Thermostat Main Printed Wiring Board Cfc~o1 |o o o| Capacitor for Circulation Motor —'Short r— "| Terminal p Empty Lamp Switch (Float Switch) ~o] " Blower for Circulation T1 TkH K fol II loool Flame Detector T8 Blower for Combustion 1 B |0| SensorfThermistor) A — Ground Air Pressure Switch Over
MONITOR 2400 SERVICE PARTS LIST MONITOR 2400 SERVICE PARTS LIST ITEM NO. PART NO.
MONITOR HEATING SYSTEMS EXPLODED VIEWS AND PARTS LIST 68 M-2400
(97) Screw Set for Flue Pipe (98) Carton Box @) Touch-up Paint (White) (99) Cushion Set (fife Glue Owners Guide Touch-up Paint (Grey) Cabinet Screw Assortment MONITOR 2400 EXPLODED VIEW (T
MONITOR 2200 SERVICE PARTS LIST MONITOR 2200 SERVICE PARTS LIST ITEM NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 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 PART NO.
MONITOR HEATING SYSTEMS EXPLODED VIEWS AND PARTS LIST IM-2200 70
74) Wiring Harness For Fan Motor Screw Set for Flue Pipe Carton Box OS) Cushion Set i ) Owners Guide Touch-up Paint (White) Glue ) Touch-up Paint (Grey) Optional Capsule Tank Kit 14) Cabinet Screw Assortment MONITOR 2200 EXPLODED VEW
