Thermostat with heat pump replacement wiring questions

I need to replace a old Smartstat 1100/1500 thermostat. I have the Honeywell 3611 model and I need to confirm the wiring before I continue. The Honeywell site does not list the Smartstat in its list.
The 1100 wiring is as follows in the instructions
Number                Designation    Color TB1-1 Transformer common    X-2        Blue TB1-2 Transformer load        X-1        Red TB1-3 Reversing Valve        RV Orange     TB1-4 Blower fan        Fan        Green TB1-5 2nd stage cooling        C-2        Dk Blue TB1-6 1st stage cooling        C-1        Yellow TB1-7 1st stage heating        H-1        White TB1-8 2nd stage heating        H-2        Brown TB1-9 3rd stage heating        H-3        Black TB1-10 Fault Indicator        Flt        See Note
The wiring on the thermostat is as follows
Code        Number    Color
C        1        Blue R        2        Red O?        3        Orange G        4        Purple Empty        5        Empty     Y1        6        Yellow- with short red wire in holes 6 and 7 W1        7        Red wire in holes 6 and 7 not from wall W2        8        White Empty        9        Empty Empty        10        Empty    
Does anyone know if where I can get information on this model. Is 3 the O RV designation and the reasoning behind the red wire in holes 6 and 7
Thanks for any information
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You may have some luck using their wiring documents based on the brand of the *system* you have rather than the old thermostat. Try this page on their site http://tinyurl.com/5ujpt for some wiring diagrams for popular system manufacturers.
-- Vinnie
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