Honeywell Focus PRO6000 Th6220D1002

MNice

So this is a new Tstat which was recommended by the supplier to go along with our new furnace. My worry is that it is to sensitive. I notice this morning that it cycled 3 times in less than 45min. It was set to 70* which the furnace turns off at but when it came back on it still read that the Temp was 70* and the Call for heat temp was 70*. Are there settings i am unaware of? I dont see anything in the manuals.

Master of Cold

What you don't see is the decimal point. On at 70.1 off at 70.9
That's the honeywell way.

MNice

Really! Doesnt this make a furnace short cycle more?

beenthere

Check to see what then CPH is set to. It could be set to for, if it is, set it to 3, or 2.

MNice

Setup function #5(Stage 1 heat cycle rate(CPH:Cycles/hour) is set to 3 (for hot water systems & furnaces of over 90% Effiency

#5 also has a * that states (Other cycle rate options: 2,4,6,7,8,10,11, or 12 CPH)

Setup function #6(stage 2 heat cycle) is set to 5(for gas or oil furnaces of less than 90% efficiency.

Shouldn't my 2nd stage be set for of 90% efficiency? It is a 95% Comfort-Aire.

beenthere

Setting 6 to 3 will tend to give you more short cycling. Set 5 to 2.

Your furnace is probably over sized.

MNice

It's a 75K btu. 1st stage is 45k and 2nd is 75k. it hasn't been remotely cold enough to call for second stage. It is what they spec'd for our house. Could it be a supply/return pressure problem? There is no faults being thrown. Our night time temp setting is 63*. It calls for it to be 68* @ 5:30am. Between 5:30 and 6:30 it will cycle 2-3 times. I am just wondering if there is a parameter not being met and it calls for it to shutdown. It does shutdown normally i.e. burners turn off, fan continues to run for "x" amount of time, and the exhaust purges 'x" amount of time once burners turn off.

Noticed doin the Tstat test in the manual when the furnace calls for heat it seems to be in the 2nd stage and not utilizing the 1st stage.

beenthere

Are you sure the wires for second stage are connected at the furnace.

MNice

This is how it is wired.

Need Some Start up help.

beenthere

It looks to be wired right.

MNice

Thats why i wondered if it might be a factory setting on the furnace end.

beenthere

Could be the dip switches aren't set right, they have to be set to use the thermostat.