Midea GA Series User manual

© 2021. Midea UK Copyright LTD.© 2021. Midea UK Copyright LTD.
GAME CHANGING
COOLING & HEATING
GA Series Ducted & CF Quick
Guide

© 2021. Midea UK Copyright LTD.
© 2021. Midea UK Copyright LTD.
Contents
Wiring Guides 3
Controllers
Commissioning / Dip Switches 14
Common Errors 2
Compatibility / Service sizes / Gas Charges 31
Midea YouTube Channel
PAGE
(Click for hyperlink)

© 2021. Midea UK Copyright LTD.
Wiring Guides
Single splits
Twin splits
XYE Adapter
(click for hyperlink)

4
Wiring Guide – Single S lits
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

© 2021. Midea UK Copyright LTD.
Twin S lit – Ducted / CF
5
•Interconnecting power supply must be locally
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

© 2021. Midea UK Copyright LTD.
Twin S lit – Ducted / CF
6
CN49 socket connection XYE Ada ter
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

© 2021. Midea UK Copyright LTD.
Controller Guides
Models and Compatibility
Wiring
Wifi HUB
MSmart Home App
Central Controller Wiring
(click for hyperlink)

© 2021. Midea UK Copyright LTD.
KJR120 Controllers
8
The KJR120G features a day timer, information enquiry and follow me
functions
It has 3 distinct versions listed below
The KJR120X is a new 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 1 31 100A25533 1 31 100A31648 1 31 100A255 3

© 2021. Midea UK Copyright LTD.
KJR120G S2/M2 & KJR120X
9
HA HB HA HB HA HB
•2 core CY 0.5mm-1/5mm connection between controller and unit(s)
•When controlling more than one system, the units 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

© 2021. Midea UK Copyright LTD.
Wifi Hub Installation
10
CN49
CN49