The manual provided is dual for N/K but they leave out words "hot water" in the ON ON first choice box -which maybe the confusion. It will come on when it's cold, period. Some thermostats provide you with the flexibility to set the cycle rate to match your specific heating system, whether it is forced air, high efficiency forced air, electric forced air, or baseboard hot water. I have a very old Warm Morning wall furnace that my grandfather put in the house nearly 50 years ago. CT87N/CT87K • Owner's Manual. Locate the heat anticipator adjustment lever arm (Photo 2). Find helpful customer reviews and review ratings for Honeywell CT87K The RoundHeat Only Manual Thermostat. ... Honeywell warrants this product to be free from defects in the workmanship or materials, under normal use and service, After guessing on which 3 wires from the wall go into which of the 3 holes in the thermostat I think I have the combination that is correct (I did not know that I was supposed to record the wiring positions before I removed and discarded the old thermostat). It's not an actual cycles per hour setting, it's more of a behavior setting. Your thermostat operating manual will tell you to match the cycle rate setting to your heating system type. New Honeywell CT87K thermostat on a gas fire place. The Honeywell CT87K that Fred asked about is for heat only -on the front of the manual you will see which does what. 1 CPH = biggest swing. Therefore I have no knowledge of the performance of the furnace prior to this. If the room temperature is either too hot or too cold for long periods, move the lever closer to the “longer” setting by one calibration mark. Honeywell CT87K Owner's Manual. Higher CPH = more sensitive and tighter temp control. Hello. I replaced an old dial mercury thermostat with a Honeywell CT87k thermostat today. Manual thermostats like the Honeywell CT87K are the most basic kind of thermostat. It doesn't mean it literally runs 1 cycle per hour. Page of 16 Go. 69-1959EFS—02 ... Move the switch to the proper setting for your ... Set cycle rate switches. I needed a new thermostadt because with the one that had been installed by a local repair man was way off on the settings. The furnace is a single stage 90% natural gas. The only adjustment the CT87K requires is the temperature setting. I just bought a Honeywell CT87K to replace the one I had previously. Full screen Standard. CT87N/CT87K • Owner's Manual 69-1959EFS—02 2 ... Move the cycle rate switches to the proper setting for your system (see table below). We in our third winter in our home. If the furnace is cycling on and off too often, move the lever away from the “longer” setting by one calibration mark. Download. When we moved in back in 2011, a Honeywell TH8320UP thermostat was installed through the Westar Wattsaver program. This model is only compatible with central heating systems and is not adaptable to central cooling systems. Now that winter is fully in swing here in Kansas, I am reminded once again just how often and short the … I notice that it turns on and off every few minutes. Gas fireplace doesn't go ON Tested wire continuity (direct short of thermostat w … read more Cycle rate switches very small, but believed in OFF , OFF position. Prev Next. Like. I read that you can adjust the cycles to reduce the number of times that the unit turns on/off per hour. I have an old "Night & Day" gas heater from the 70s. It has more to do with overshoot and undershoot and how it compensates via an algorithm. 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