Related Manuals for Midea GA Series
Summary of Contents for Midea GA Series
- Page 1 GAME CHANGING COOLING & HEATING GA Series Ducted & CF Quick Guide © 2021. Midea UK Copyright LTD. © 2021. Midea UK Copyright LTD.
- Page 2 (Click for hyperlink) PAGE Wiring Guides Controllers Commissioning / Dip Switches Contents Common Errors Compatibility / Service sizes / Gas Charges Midea YouTube Channel © 2021. Midea UK Copyright LTD. © 2021. Midea UK Copyright LTD.
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Page 3: Wiring Guides
Wiring Guides (click for hyperlink) Single splits Twin splits XYE Adapter © 2021. Midea UK Copyright LTD. - Page 4 Wiring Guide – Single Splits L,N,E,S 1L,2N,E,S HA HB • Interconnecting power supply must be L,N,E locally isolated with a 5amp switch fuse spur to protect the indoor PCB • ‘S’ must not be switched (crimp straight through) Controller...
- Page 5 • 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 © 2021. Midea UK Copyright LTD.
- Page 6 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 CN49 socket connection XYE Adapter © 2021. Midea UK Copyright LTD.
- Page 7 Controller Guides (click for hyperlink) Models and Compatibility Wiring Wifi HUB MSmart Home App Central Controller Wiring © 2021. Midea UK Copyright LTD.
- Page 8 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 1-16 1-16 Bom codes 17317100A25533 17317100A31648 17317100A25573 © 2021. Midea UK Copyright LTD.
- Page 9 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 © 2021. Midea UK Copyright LTD.
- Page 10 Wifi Hub Installation CN49 CN49 © 2021. Midea UK Copyright LTD.
- Page 11 • 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 © 2021. Midea UK Copyright LTD.
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Page 12: Video Link
MSmart Home Set up Video Link © 2021. Midea UK Copyright LTD. - Page 13 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 Commissioning and Parameter Settings (click for hyperlink) 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 © 2021. Midea UK Copyright LTD.
- Page 15 Forced Cooling Mode 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 Breezeless Display Compact Display Ducted Display © 2021. Midea UK Copyright LTD.
- Page 16 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 © 2021. Midea UK Copyright LTD.
- Page 17 SW1 – Anti Cold Air Function 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 © 2021. Midea UK Copyright LTD.
- Page 18 SW2 Bit 1 is used to select what happens to the indoor fan when the unit reaches set point and the compressor stops Factory Setting SW2 Bit 1 – OFF Fan OFF (in 120s) Optional Setting SW2 Bit 1 – ON Fan Runs On Indefinitely © 2021. Midea UK Copyright LTD.
- Page 19 SW3 – Auto Restart SW3 is used to determine if the unit automatically starts again after a loss of power Factory Setting SW3 – OFF Auto Restart ACTIVE Optional Setting SW3 – ON Auto Restart INACTIVE © 2021. Midea UK Copyright LTD.
- Page 20 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 © 2021. Midea UK Copyright LTD.
- Page 21 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 © 2021. Midea UK Copyright LTD.
- Page 22 Once the jumper is removed the unit will display a CP Terminal Style 1 Terminal Style 2 fault if the on/off link goes to open circuit System starts again once the circuit is closed © 2021. Midea UK Copyright LTD.
- Page 23 (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 © 2021. Midea UK Copyright LTD.
- Page 24 The voltage is output when the indoor fan motor is running motor. © 2021. Midea UK Copyright LTD.
- Page 25 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 Outdoor Coil Temp Ambient Temp Discharge Temp © 2021. Midea UK Copyright LTD.
- Page 26 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 • © 2021. Midea UK Copyright LTD.
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Page 27: Common Errors
Common Errors (click for hyperlink) EL01 / E1 – Comms Error EL11 / EH12 – Master Slave error © 2021. Midea UK Copyright LTD. - Page 28 Service Checks (system has been commissioned) Has there been any recent work done to the building? Any power cuts etc? Any mains supply works? • Check both units have 240v and are powered correctly • © 2021. Midea UK Copyright LTD.
- Page 29 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 © 2021. Midea UK Copyright LTD.
- Page 30 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 fault © 2021. Midea UK Copyright LTD.
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Page 31: Product Compatibility
Product Compatibility (click for hyperlink) Connections / Sockets / Terminals Compatibility / Application Considerations Pipe Sizes / Gas Charges © 2021. Midea UK Copyright LTD. - Page 32 DMB – data module board. It is a small additional PCB housed in its own box that converts the CN40 connection to a HA/HB connection HA/HB – 2 core wiring connection for Midea hard wired controllers © 2021. Midea UK Copyright LTD.
- Page 33 USB Plug in Y (up to 18K) Optional CC + Wifi Twin + Wifi Twin + CC Infra Red RG10-S Optional *wiring interface required for cc connection and twin split systems . Free of charge © 2021. Midea UK Copyright LTD.
- Page 34 USB Plug in Y (up to 18K) Optional CC + Wifi Twin + Wifi Twin + CC Infra Red RG10-S Included *wiring interface required for cc connection and twin split systems . Free of charge © 2021. Midea UK Copyright LTD.
- Page 35 24g/m piping (m) Max diff height (m) Intercon. 4 core 4 core 4 core 4 core 4 core 4 core 4 core 1.5mm 1.5mm 1.5mm 1.5mm 1.5mm 1.5mm 1.5mm Power 1ph/3ph Breaker 32/16 (amps) © 2021. Midea UK Copyright LTD.
- Page 36 © 2021. Midea UK Copyright LTD.