OMNI PRO 2, Wiring Question

[HASilver]

I have an OMNI PRO II, 8-Relay Module - 19A00-1, and two RC-1000 Omnistat2's.
 
According to the wiring instructions, the thermostats and relay 8 both go to output screw terminal number 8  on the Omni Pro II.  When I did the initial install years ago, I only needed five of the relays, so I left relay 8 out of the equation.  Now I have a need for relays 6, 7, and 8.  So, how do I resolve this?  How do I connect relay 8 and not interfere with the thermostats?  Could the thermostats be powered by a second power supply?  Please forgive me if I am missing something obvious here.
 
 
 
Thanks in advance for any assistance.
 
 
 
 

 

[RAL]

You need more outputs than the 8 primary outputs that are on the OP-II board if you want to drive all 8 relays plus the thermostats.  The solution would be to add an output expansion board (17A00-9).

 

[Desert_AIP]

The relay can't be on output 8 when it is set to Thermostat type is is used to communicate to the Tstats.
 
All of HAI's (now Leviton) harware docs assume the item under discussion is the only piece of hardware.