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Midea 17317100A25533, Quick Manual, Page: 26 / 36

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Midea 17317100A25533 Quick Manual Download Page 26

© 2021. Midea UK Copyright LTD.

KJR120G – Engineers Menu

26

Holding the Copy/Follow Me button for 3 seconds enters Engineers Mode

•

Use + - to navigate through the units connected

•

Press confirm to enter the settings of the unit

Static Pressure Settings for ducted systems

•

Select SP from the available settings

•

Set the pressure to suit the application

Summary of Contents for 17317100A25533

Page 1: ... 2021 Midea UK Copyright LTD 2021 Midea UK Copyright LTD GAME CHANGING COOLING HEATING GA Series Ducted CF Quick Guide ...

Page 2: ...Copyright LTD 2021 Midea UK Copyright LTD Contents Wiring Guides 3 Controllers 7 Commissioning Dip Switches 14 Common Errors 27 Compatibility Service sizes Gas Charges 31 Midea YouTube Channel PAGE Click for hyperlink ...

Page 3: ... 2021 Midea UK Copyright LTD Wiring Guides Single splits Twin splits XYE Adapter click for hyperlink ...

Page 4: ...ide Single Splits HA HB Interconnecting power supply must be locally isolated with a 5amp switch fuse spur to protect the indoor PCB S must not be switched crimp straight through L N E 1L 2N E S L N E S Controller ...

Page 5: ...ly isolated with a 5amp switch fuse spur to protect the indoor PCB Controller only wires to the Master Link Fan coils on XY terminals with 2 core CY The XYE adapter plug in is required to allow the connection Master and Slave are set using SW5 SW5 Bit 1 ON for Master SW5 Bit 1 2 ON for the Slave ...

Page 6: ...ght LTD Twin Split Ducted CF 6 CN49 socket connection XYE Adapter The adapters are an optional extra They are free of charge Once plugged into CN49 they allow twin comms wiring and central controller wiring X Green Y Yellow ...

Page 7: ... 2021 Midea UK Copyright LTD Controller Guides Models and Compatibility Wiring Wifi HUB MSmart Home App Central Controller Wiring click for hyperlink ...

Page 8: ...w controller which has the same features as the KJR120G with the added ability to change the limits of set points and other parameters Model KJR120G2 TFBG E KJR 120G TF E 01 KJR 120G TF E 01 KJR120X Midea Ref KJR120G2 P P KJR120G2 S2 KJR120G M2 KJR120X Wiring Jack plugged 2 core HA HB 2 core HA HB 2 core HA HB of units 1 1 1 16 1 16 Bom codes 17317100A25533 17317100A31648 17317100A25573 ...

Page 9: ...s must be addressed using the Rotary Dial S1 switch on the indoor PCB Both the HA HB and Jack plug versions of the controllers look very similar except for the fly lead that is connected to the bottom of the jack plugged version Bear this in mind when attempting to wire the controllers The jack plugged version cannot be connected using HA HB even though the terminals are present ...

Page 10: ... 2021 Midea UK Copyright LTD Wifi Hub Installation 10 CN49 CN49 ...

Page 11: ...ode Press the LED Display button any infra red controller with LED button can be used 7 times On each press the faint light with flash on the hub no indication is given on the unit Once the hub is in AP mode the light will flash of its own accord Follow the steps on the mobile app to complete the registration ...

Page 12: ... 2021 Midea UK Copyright LTD MSmart Home Set up 12 Video Link ...

Page 13: ...ems come with the ability to connect to a central controller THE XYE ADAPTER IS REQUIRED FOR DUCTED AND CF UNITS Split systems are linked via XYE terminals on indoor pcb 3 core 0 75 CY cable standard for Midea VRF Addresses are set using the applicable switches on the indoor pcb ...

Page 14: ...missioning and Parameter Settings Forced Cooling Mode Twin Split Settings Anti Cold Air Function Fan Set Point Control Auto Restart CC Address Heating Temperature Compensation Remote ON OFF Alarm Output 230v Output click for hyperlink ...

Page 15: ...ced Cooling Mode 15 Breezeless Display Compact Display GA series systems can be forced into cooling mode by pressing the MANUAL button twice The system will run at 80 frequency and ignore any ambient thermistor readings Ducted Display ...

Page 16: ... Master SW8 SW5 Bit 1 ON Slave SW8 SW5 Bit 1 2 ON Slave units will do exactly what the Master is set for and become totally ignorant to any form of control Therefore no settings or controller wiring remote on off central controller address and wiring etc need to be changed or added to the slave Hard wired controllers only need to be wired to Master ...

Page 17: ...yright LTD SW1 Anti Cold Air Function 17 SW1 is used to set what coil temperature the indoor fan motor starts at in heating mode This is particularly effective at preventing cold drafts after a defrost cycle for example ...

Page 18: ...n Set Point Control 18 Factory Setting SW2 Bit 1 OFF Fan OFF in 120s Optional Setting SW2 Bit 1 ON Fan Runs On Indefinitely SW2 Bit 1 is used to select what happens to the indoor fan when the unit reaches set point and the compressor stops ...

Page 19: ... UK Copyright LTD SW3 Auto Restart 19 Factory Setting SW3 OFF Auto Restart ACTIVE Optional Setting SW3 ON Auto Restart INACTIVE SW3 is used to determine if the unit automatically starts again after a loss of power ...

Page 20: ...ller via XYE terminals S2 and S1 work together to provide 64 unique addresses Refer to the table for address settings NOTE there is no need to change the default address unless there is a central controller connected This applies to twin systems and units connected to one controller ...

Page 21: ...tion in HEATING mode This allows the system to overcome the real temperature difference between the ceiling and the floor The system will aim for a set point X C greater than the actual set point to overcome the difference If the ceiling height is lower the default can be changed to take this into account ...

Page 22: ...board The remote on off signal supplied by the unit is 12v DC The units can be daisy chained in sequence to switch multiple units from one source fire alarm panel etc The remote on off isn t activated until the jumper is removed from JR6 Once the jumper is removed the unit will display a CP fault if the on off link goes to open circuit System starts again once the circuit is closed ...

Page 23: ...erminals which switch to a closed circuit if the system faults out any component fault Not CP remote on off This allows a voltage upto 12v to be switched through it to signal the fault if one occurs The voltage and alarm components must be supplied by the installers ...

Page 24: ...00W it can be connected to these ports directly The voltage is output when the indoor fan motor is running If the input power of the ventilation motor is more than 200W a contactor should be installed to control the motor And the power supply from the ports can be used to connect the windings of the contactor so as to control the big ventilation motor ...

Page 25: ...Copy Follow Me button for 3 seconds enters Engineers Mode Use to navigate through the units connected Press confirm to enter the settings of the unit Thermistor readings Room Temp T1 Temperature Indoor Coil Temp T2 Outdoor Coil Temp T3 Ambient Temp T4 Discharge Temp TP ...

Page 26: ...py Follow Me button for 3 seconds enters Engineers Mode Use to navigate through the units connected Press confirm to enter the settings of the unit Static Pressure Settings for ducted systems Select SP from the available settings Set the pressure to suit the application ...

Page 27: ... 2021 Midea UK Copyright LTD Common Errors EL01 E1 Comms Error EL11 EH12 Master Slave error click for hyperlink ...

Page 28: ...he W terminal has been moved to 1 L Check the S connection from the terminal block at the outdoor unit is connected ok onto the outdoor PCB Make sure to check all jack plugs Check power connections from terminal blocks to both indoor and outdoor PCBs Make sure all other connections controllers etc are correct Service Checks system has been commissioned Has there been any recent work done to the bu...

Page 29: ...he dc voltage between terminals S N black tester S red tester N Voltage should flucate between and values If the voltage is fixed it is the indoor board at fault If the voltage fluctuates but only with positive values it is the outdoor board at fault Check spade connections onto boards If all is good condemn the applicable PCB ...

Page 30: ... ok and that it is wired correctly Make sure S isn t connected from the master to the slave If in doubt temporarily power down one fan coil and reset the powered unit to a single split on SW8 SW5 both dips OFF If the system comes out of error it means the fan coil is fine Swap the units Test this fan coil as well If both fan coils are good then it is 100 either the dip switch or the wiring at faul...

Page 31: ... 2021 Midea UK Copyright LTD Product Compatibility Connections Sockets Terminals Compatibility Application Considerations Pipe Sizes Gas Charges click for hyperlink ...

Page 32: ...ling Floor MUE N Y Y Y Y Y Y Twin Y Adapter required Y HUB CN49 Y CN49 Y HA HB CN40 CN49 this is the 4 core 12v socket on the PCB of the indoor unit It allows plug and play controllers and wifi hubs to be connected It also acts as the XYE connection for central controller and twin split comms for ducted and ceiling floor via an adapter CN38 a connection unique to the breezeless cassettes it allows...

Page 33: ...P 2 Core Optional S1 included multi controller optional Compatibility Multi splits Twin Splits Y up to 18K Y Wifi Controller Wifi Hub USB Plug in Optional No Infra Red RG10 S Optional CC CC Wifi Twin Wifi Twin CC Y N N N wiring interface required for cc connection and twin split systems Free of charge ...

Page 34: ...P P 2 Core Optional S1 included multi controller optional Compatibility Multi splits Twin Splits Y up to 18K Y Wifi Controller Wifi Hub USB Plug in Optional No Infra Red RG10 S Included CC CC Wifi Twin Wifi Twin CC Y N N N wiring interface required for cc connection and twin split systems Free of charge ...

Page 35: ... 8 5 8 3 8 Precharge 5m 5m 5m 5m 5m 5m 5m Additional 12g m 12g m 24g m 24g m 24g m 24g m 24g m Max piping m 25 30 50 75 75 75 75 Max diff height m 10 20 25 25 30 30 30 Intercon 4 core 1 5mm 4 core 1 5mm 4 core 1 5mm 4 core 1 5mm 4 core 1 5mm 4 core 1 5mm 4 core 1 5mm Power 1ph 1ph 1ph 1ph 3ph 1ph 3ph 3ph Breaker amps 16 16 20 32 16 32 16 16 ...

Page 36: ... 2021 Midea UK Copyright LTD END ...

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