Help Omnistat 2 Install Actron Air

jdmevo123

New Member
Hi All,
 
Hoping one of the Gurus here can help me, I recently installed an ELK m1 system and had no issues. I then ordered the Omnistat 2 to control my HVAC but am unsure on how to connect. 
 
I have an actron air unit SRA11C (Australia 240v ac) that has a relay module in the roof and wall keypad.
The keypad has the following connections:
Power-C
Key A
Ground
Sensor
 
The relay unit in the roof is all 240v ac, does not supply 24v ac.
 
My question is, does anyone know how to install this, is there a way I can connect it up?
 
I received the attached file (SNAGIT) from actron air themselves that advised that is how they normally connect a external thermostat. Does not make any sense to an electrician I hired nor to me.
 
I have also attached the file of the wiring diagram in the roof. (attachment) the wiring diagram is the 240v ac one.
 
Any help would be appreciated.
 
Please email me for the attachements as I do not know how to upload them.

Thanks 
 
Dale
 
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