Wiring a Potterton Prt2 to a Vokera Compact

[GHB]

Hi all.....I'm new here.....and my first question is on wiring a Potterton PRT2 to a Vokera Compact.
I have 4 wires from the PRT2 at the boiler end.......2 red,1 blue,1 yellow.I have included images of controller wiring,wiring diagram from Vokera manual and terminal block from boiler.
Could someone tell me which wires go where?.......I was thinking red is no 3 in wiring diagram,blue is no2 in wiring diagram and yellow is no 1.
//www.diynot.com/network/GHB/albums/8481/32914


thanks

Gary

 

[holmslaw]

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[GHB]

thanks.........
its a Vokera Compact 28

 

[holmslaw]

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[GHB]

Thank you holmslaw for your help!...........really appreciated.....I'll give them a ring