Unit mounted C7400S enthalpy sensor includes solid state temperature and humidity sensors

Outputs a digital communicating signal on a two-wire Sylkbus communications link, reporting the temperature and humidity separately to the controller

The controller determines the enthalpy (total heat), enabling economizer modes of operation when outside air enthalpy is suitable for free cooling

Enthalpy sensors are compatible with Honeywell economizer systems

When used with an economizer, the enthalpy boundary curve is programmed via the controller

When the temperature and humidity are determined to be suitable based on the relationship to the boundary, the controller allows outside air for economizing

Dual enthalpy sensors in outside air and return switches the controllers to economizer mode of operation anytime the outside enthalpy is less than the return air enthalpy

The C7250 Mixed Air Sensor is Designed for Use as a 20K Input to a Controller for Mixed Air Temperature in Rooftop Packaged Air Conditioning Equipment

Plugs Directly into Wall Outlet

Lamp Plugs into Receptacle at Bottom of Winter Watchman Device

Useful When House is Unoccupied to Notify a Neighbor of a Temperature Drop So Heating Source Fault Can be Rectified before Freeze-Up Occurs

Not Precision Calibrated for Use as a Thermostat

Use in Intermittent Ignition Applications

Capable of Zone Control with Zone Valves

Circulator Zone Control with Zach and or Terminals on R8182D,E,H,J 8 Flame Failure During the Running Cycle Results in a 45 Second Attempt to Restart

If Unsuccessful, Safety Shut-Off Occurs, Requiring Manual Reset before Burner Can be Restarted

R8182D,E,F Mount Directly on Burner

R8182H,J Mount on 4 x 4 in Junction Box and Include 5 Foot (1.5 Meter) Armored Capillary with Remote Sensor

C554A Cadmium Sulfide Flame Detector and a 24 Volt AC Thermostat Required

Controls oil burner, oil valve and the ignition transformer in response to a call for heat

Solid state flame sensing circuit

LED on terminal strip indicates system lockout

Enclosed safety switch with external reset button

Manual trip lever opens safety switch for system maintenance

For mounting on a standard 4 in. x 4 in. junction box or direct mounting on burner housing

Use to Troubleshoot System Operation

Platinum Positive Temperature Coefficient Sensor

Factory Calibrated

No Settings or Field Calibration Required

Solid State Elements Sense Enthalpy (Temperature and Humidity), Use Two Sensors for Differential Control, Maximizing Energy Savings

Use One Sensor in Outdoor Air for Single Sensor Control, Use Two Sensors, One in Return Air and One in Outdoor Air for Differential Control

Mount in any Position up to 200 Ft (61 M) Away from Economizer Logic Module