thermostat wiring / robertshaw 9825i2


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Old 06-01-12, 08:45 AM
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thermostat wiring / robertshaw 9825i2

bought new robertshaw 9825i2 thermosat for multistage heat pumps / but installation does not show wiring for 2 heat 1 cool . calles robertshaw and they act like i need a relay to change 2 stage cooling to 1 stage cooling even though i dont have 2 stage cooling . my wires are g,r,w,c,y,o. there stat hs all off these but when hooked up unit tries to clcle to heat in cooling mode

does anyone know if this thermostat can be used with a 2 stage heat pump with 1 stage cooling andhow would you wire it


can you wire y1 and y2 together and it work
 

Last edited by mazda8616; 06-01-12 at 09:43 AM.
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Old 06-01-12, 10:41 PM
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http://www.robertshawtstats.com/imag...%20English.pdf

Use the setup wizard to change the setting in step 8 to heat pump.
The 2 stage cooling is not an issue. Wire your Y to Y1 and do not connect anything to Y2.

 
 

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