Aircommand IBIS ROOFTOP CARAVAN, Technical Manual

Page 1: ... MANUAL for IBIS ROOFTOP AIRCONDITIONER ERROR CODES THEIR MEANING Aircommand Australia Pty Ltd 954 Port Road Albert Park South Australia 5014 Email reception aircommand com au Pantone Cool Grey 9U Pantone 301 U ...

Page 2: ...opper pocket on the coil See fig 18 E3 Outside coil sensor fault Usually a faulty connection 2 plugs damaged lead or faulty sensor Action Check Red plug on main board and extension plug in bundled wiring usually located near capillary tube coils Check resistance of thermistor cable by measuring with a multimeter 10K ohm at 25C See fig 19 and table 1 If open circuit or out of calibration replace E4...

Page 3: ...il temp using the Temp down button and Medium fan speed combination to display this temp NB if fans etc seem to be OK then measure thermistor resistance and refer to table 12 In case the problem is thermistor calibration Action If unit is in cooling mode examine both condenser fans are running If one is running then suspect a faulty motor If both fans not running then on units up to serial No IBSA...

Page 4: ... Yellow If the Black or White conductors are broken then there will be no display If the Yellow or Red conductors are broken then the display will read 0 In addition if one or the other Yellow or Red conductors are broken then if the unit is in Auto change over mode then both the Green cooling LED and the Red heating LED will be flashing together This will be conclusive proof of a break in the con...

Page 5: ...ed plug Should be 12V DC If no output change the SMPS Some SMPS have an adjustment pot fig 20 Try adjusting either direction to see if it regains output Units from IBSA 03280 have an integrated SMPS on the main board fig 3 Except for units IBSA 03482 to 03504 which had external SMPS s 3 Unit drops out the ECB breaker Use a 500V megger to check for ground leakage It is possible to unplug both conde...

Page 6: ...ompressor studs are clear of the rubber Mount by 1 to 2 mm Adjust if necessary See fig 7 9 On heating the unit cycles regularly the temperature display indicates say 24 to 28C but the average temperature in the van is very much less Disassemble the facia from the inside plenum 4 screws and examine carefully the extension duct for leaks particularly where it joins the horizontal duct A leaking duct...

Page 7: ...Disassemble the display and check the plug to board is OK see fig 23 If the voltages can be detected right up to the display replace display 3 If the voltages cannot be detected at the breakaway plug then suspect the problem to be in the main control board enclosure Remove the canopy from the unit Isolate the power to the aircon Remove lid of the RHS enclosure to gain access to the control board S...

Page 8: ...frigerant recovered the leak repaired and checked and the unit evacuated and recharged 720 grams A unit that may have had a leak at an access valve and this has been rectified can have refrigerant added Add refrigerant until a good fit is made with the above parameters I e Suction pressure above 400 Kpa delta T greater than 14C and the inside coil below 14C The use of Independent generators or Inv...

Page 9: ...isulu QHR 19E early production Or Sanyo C RH100H5B Pt No 0018290 Run capacitor 30 µf x 440 VAC 4101072 Start capacitor if used 64 µf x 330 VAC 8001040 Start relay Omron AMVL 300A 8001042 Or PTC relay GYE101A Condenser and Evap fan motors single speed to s n 001177 4402060 Fan Capacitor 1 5 µf Condenser Fan 3 speed s n 001178 upward 8001052 Fan Capacitor 2 µf Evaporator Fan 3 speed s n 001178 upwar...

Page 10: ...tance in K Ω 10 45 9 43 8 41 7 39 6 37 5 36 4 34 3 32 2 31 1 30 0 28 1 27 2 26 3 25 4 24 5 23 6 22 7 21 8 20 9 19 10 18 11 17 5 12 17 13 16 14 15 5 15 15 16 14 3 17 13 7 18 13 19 12 6 20 12 2 21 11 7 22 11 2 23 10 8 24 10 4 25 10 26 9 6 27 9 2 28 8 9 29 8 6 30 8 3 31 8 32 7 7 33 7 4 34 7 1 ...

Page 11: ... 75 63 2 7 64 2 6 65 2 5 66 2 45 67 2 4 68 2 3 Example The thermistor sensor is in free air and the free air temp is measured as 35C The resistance of the thermistor assy s measured at 6 8KΩ This indicates the thermistor assy is OK The thermistor assy in free air is 20 C The resistance is measured as 6 6KΩ which relates to 36C This indicates that the thermistor is defective and should be changed i...

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Page 40: ... 21 Control cable see wiring diags see figs 1 11 11a 14 pp3 Controller main see figs 1 2 2a Controller speed see pp4 see fig 5 D De Icing see pp5 Display see pp3 figs 22 23 pp3 Discharge temp see pp 7 Drain see fig 21 Duct extension see fig 24 Duct horizontal see figs 9 17 E Electrical faults see speci pp9 for fan motor data See pp5 for compressor data Enclosures see figs 1 2 3 21 Electrical data ...

Page 41: ...ng see pp 7 Refigerant see speci pp9 Roof seal see pp 5 11 Return air see pp5 9 pp5 10 see fig 14 Return air sensor see pp 1 Return air filter see fig 14 Reversing valve see fig 21 Rubbers see fig 6 S Seal roof see pp 5 11 Sensor see pp 1 2 see figs 16 18 19 Table 1 Specifications see pp 9 Speed controller module see pp 4 fig 1 5 Springs see fig 6 Schrader valves see Access valves Suction pressure...

Page 42: ...Page 41 T Thermistor see pp1 2 see figs 16 18 19 see table 12 U V Voltage see speci pp9 W Water ingress see pp6 Watts in see speci pp9 Wiring Diags see pp 10 11 12 ...