Toshiba Super Multi SMi VRV addressing

[Daz man]

11162Morning all,

I am working on numerous indoor Toshiba fan coil units -

model number of the indoor fcu's - RAV264BH.

(PLEASE SEE ATTACHED SCHEMATIC PIC TO ASSIST)

Outdoor condenser is a MAR-F105HTM8-PE on R407c with a multi controller box also installed.

I have a hard wired remote controller stating the below fault -

'check' light is flashing and indoor units 01, 03, 05 are showing 14 - -

I understand the 14 - - fault, but my question is, how do I determine which fan coil is unit 01, 03 and 05? As on the drawing the fcu's are showing as labelled 11-19?

Is there a dip switch or yellow dial on the indoor pcb showing which indoor unit is 1, 2, 3 etc?

Many thanks

[install monkey]

isnt fault 14 an inverter fault?
http://www.mediafire.com/view/mo43v0xgxkp6jlo/MAR-(M)(F)104HTM8-PE%20RBM-Y1034-44(F)-PE%202-3%20Pipe%20Super%20Multi%20Service%20Manual%20A90-9922.pdf
http://www.mediafire.com/view/uacn7fbbk7c1f81/toshiba%20technical%20handbook(2).pdf
2 manuals for ya
stick it on test heat and it will be the ones that dont run

[Daz man]

14 - - on a SMi condenser is G-TR short circuit protection!

does anybody know what exactly the G-Tr refers to?

Then its its a case of finding which indoors the controller is meaning 01, 03, & 05

[install monkey]

gate transistor

Check code Operation cause
1. Outdoor unit power source error
[14] 2. Wiring error on inverter P.C. board
G-Tr short circuit protective system 3. AC fuse disconnection
alarm 4. Inverter compressor error
(Gate Transistor) 5. Defective inverter P.C. board

[bigspee]

Iv got one of these units with a A7 fault, suction temp exceeding 40 degrees... Looks like a valve is sticking and it's putting hot gas down the suction! Can't find the combination of the units in cooling to heating to mimic the fault :(

[install monkey]

run all indoors in test cool- check which indoor is poorly performing- then just run the 1 unit to proove the multi box is knackered

Iv got one of these units with a A7 fault, suction temp exceeding 40 degrees... Looks like a valve is sticking and it's putting hot gas down the suction! Can't find the combination of the units in cooling to heating to mimic the fault :(