Munters MIR 55 WU Manual do Utilizador

1Technical Training CourseMobile Diesel Heaters TOR / MIRRev. No. 0 March 3rd, 2010

10Fuel PumpDanfoss BFPCfuel pump (front view)BFPC 21R3 MIR 37MIR 55TOR 67BFPC 21R5 MIR 85TOR 115TOR 175Fuel pump filter

11Fuel Cutoff Valve

12BURNER ASSEMBLYNozzle HolderIgnition electrodesSwirl discAir ShutterFuel NozzleFlame Sensor

13BURNER ASSEMBLYThe burner assembly includes : nozzle holder air shutter swirl disc fuel nozzle

14BURNER ASSEMBLY ignition electrode air shutter

15BURNER ASSEMBLY• Removing burner head for maintenance and service

16CHAMBER INLET• Removing chamber inlet for maintenance/cleaning

17COMBUSTION CHAMBERCombustion chamber (MIR)TOR Combustion Chamber Protection Shield (TOR)Combustion chamber inside (MIR)

18TOR 175 WUSpecial FeaturesSpecial swirl discSpecial BCU withshortened safety time: 5 s

19TOR 175 WUSpecial features

2MIR Indirect-fired Diesel Heaters• MIR 37 WE MIRAGE 37 H• MIR 55 WE MIRAGE 55 H (EURO MODELS)• MIR 85 WE MIRAGE 85 H• MIR 37 WU MIRAGE 125 H• MI

20WIRING DIAGRAM (TOR/MIR EU)

21WIRING DIAGRAM (TOR 67/MIR 37/MIR55)

22WIRING DIAGRAM (TOR 115/TOR 175/MIR 85)

23ELECTRICAL BOARDThe electrical board consists of: Control panel Protection casing (against water/dust) Power cable with strain relief and plug O

24Control Panel and Protecting CoverON-OFF SwitchPower CableReset PushbuttonRoom Thermostat SocketPower LampProtection Cover (IPX4)

25Electronic Burner Control Unit Solenoid Valve (line)Transformer (line)Motor (line)NeutralWiresPhotocellContactsSwitchContacts

26SAFETY DEVICES• Flame Sensor (photoresistor)Detects false flame signal or anticipated ignitionMonitors flame at ignitionMonitors flame failure durin

27SAFETY DEVICES• Air Pressure Switch (US models only)Monitors fan pressureShuts burner off in case of reduced pressure/airflow

28TOR-MIROPERATIONAL SEQUENCE

29BASIC SERVICE PROCEDURES

3TOR Direct-fired Diesel Heaters• TOR 67 WE TORNADO 67• TOR 115 WE TORNADO 115 (EURO MODELS)• TOR 67 WU TORNADO 230• TOR 115 WU TORNADO 400 (USA M

30Line Fuse Check

31Fan motor/capacitor check

32Smoke Index Test (Bacharach-Shell, indirect only)IMPORTANT : 10 TIMES EXACTLY1

33Air Shutter Adjustment

34Fuel Filter Maintenance

35Burner Nozzle Maintenance

36Burner Head Maintenance

37Fuel Pump Replacement

38Fuel Pressure AdjustmentPump pressure setting for all TOR/MIR:12 bar (175 psi)

39Ignition Electrode Service

4MIR General AssemblyCombustion Chamber (closed)Fuel TankExhaust DuctBurner HeadMotorFuel PumpFan

40Flame Sensor ServiceTypical sensor resistance valuesLight ~ 100 Dark ~ 100 k or more, tending to 

41Limit Control ResetThermostat SettingsIndirect Heaters: 170°C (338 F)Direct Heaters: 100°C (212 F)

42CORRECT INCORRECTInstallation GuidelinesExhaust Pipe Design

43Installation GuidelinesAir Ducting

44Installation GuidelinesAir Ducting AccessoriesMIR 37/55 max duct length: 40 ftMIR 85 max duct length: 60 ft

45TROUBLESHOOTINGyesSWITCHONTHE HEATER STARTSnoSee Service ManualReplace burner control unitIf fuse is burnt:Replace, use same type/ratingCheck burner

46For operation without remote thermostat: check that thermostat socket cap is correctly inserted Lock-out from previous operation:Wait 30 seconds and

47Tighten fuel line fittingsCheck for damages/cracks in fuel hosesCheck - and remove - light reflections due to sunrays, lamps etc. that could reach

48See Service Manual chapter 3.12HEATER STARTS, FLAME IGNITES BUT COMBUSTION IS NOT GOODCheck nozzle sizeCheck that pump filter is cleanCheck that fue

49Check that there are no air bubbles in the fuel linesFuel of incorrect type, dirty, polluted or containing waterEmpty tank and refill with clean fu

5TORGeneral AssemblyCombustion Chamber (open)Fuel TankFront Flame ShieldBurner HeadMotorFuel PumpFan

50noyesTHE BURNER SHUTS OFF DURING OPERATION AND THE FAN CONTINUES TO ROTATE(US MODELS ONLY!)Trip of air pressure switch Check air inlet/outlet for bl

51OKnoyesWrong (too large) nozzle size Wrong (too high) fuel pressure Insufficient ventilation air due to motor fault Insufficient ventilation air due

52MIR WE (EU) - SETTING CHART CHAMBER INLET FAN SWIRL DISC FUEL PUMP FUEL PRESSURE BURNER NOZZLE AIR LOCK OPENING OVERHEAT THERMOSTAT MIR 37 WE (E

53TOR WE (EU) - SETTING CHART CHAMBER INLET FAN SWIRL DISC FUEL PUMP FUEL PRESSURE BURNER NOZZLE AIR LOCK OPENING OVERHEAT THERMOSTAT TOR 67 WE (EU

54MIR WU (USA) - SETTING CHART CHAMBER INLET FAN SWIRL DISC FUEL PUMP FUEL PRESSURE BURNER NOZZLE AIR SHUTTER SETTING OVERHEAT THERMOSTAT MIR 37 W

55TOR WU (USA) - SETTING CHART CHAMBER INLET FAN SWIRL DISC FUEL PUMP FUEL PRESSURE BURNER NOZZLE AIR SHUTTER SETTING OVERHEAT THERMOSTAT TOR 67

56SERVICE & MAINTENANCE TOOLS

6FAN MOTOR ASSEMBLYEU Motors430W 2700 rpm 2 poles 16 µF MIR 37 WE - MIR 55 WE - TOR 67 WE750W 1400 rpm 4 poles 20 µF MIR 85 WE - TOR 115 WEUS Motor

7FUEL CIRCUIT The fuel circuit is basically composed of : fuel tank suction and return hoses fuel filter (normal or heated) fuel pump fuel soleno

8Fuel TankAvailable Tank Capacities51 l (13.5 US gal) MIR 37 WE/WU - MIR 55 WE/WU - TOR 67 WE/WU 100 l (26.5 US gal) MIR 85 WE/WU - TOR 115 WE 139 l

9Fuel FilterStandard FilterHeated Filter