Johnson Controls Thermostat Wiring Diagram

A johnson controls ms baceol 0 end of line terminator ordered separately or similar device is recommended to.

Johnson controls thermostat wiring diagram. After the bus wires are connected to the first controller continue in a. Apac single point of contact. The stop screw must be loosened and moved to the stop setting desired. Nortek global hvac reznor does not endorse any field changes to factory wiring schemes.

European single point of contact. Tec series bacnet ms tp network temperature and humidity controllers technical bulletin 7 3. Securely tighten the mounting plate locking screw. See the mounting and wiring sections for additional guidelines and restrictions when mounting and wiring the control.

Each a419 control includes a johnson controls penn a99 temperature sensor. The a421 series electronic temperature controls are single stage electronic temperature controls with a single pole double throw spdt output relay. An led indicates the output relay s on and off. Tec3000 series single or two stage economizer thermostat controllers installation instructions 3 installing the thermostat controller 1.

Box 423 milwaukee wi 53201 0423 johnson controls customer service in the united states call 1 800 275 5676 in canada call 1 800 321 4023. 2 h line neutral to heating load 1 to cooling 3 t26a and t26b t26j figure 6. That core competency is at the heart of johnson controls. Tighten screw after setting is made.

5 all models have a screw type cutout stop. The sensor may be removed and replaced with any compatible johnson controls a99 temperature sensor or the wire leads on the sensor may be extended. Hook the two slots in the thermostat base over the tabs on the mounting plate and swing the thermostat into place. Johnson controls westendhof 3 45143 essen germany.

Internal diagram of t26a t26b and t26j 1 2 h line. The comfort of its occupants depends on an indoor climate that adapts to their needs. This device controls the temperature of heating and cooling devices such as refrigerators freezers typically to hold. Use a 1 16 in.

A421 controls feature a backlit lcd with adjustable brightness and three button touchpad interface that can be set up to restrict user adjustments. This material is for professional use only and is intended to be used only as reference material by licensed contractors when installing or servicing reznor equipment. Our commercial thermostats provide unprecedented accuracy efficiency and energy savings. Temperature is arguably the most important component in a building s environment.

1 5 mm allen wrench or johnson controls t 4000 119 allen head adjustment tool order separately to remove the security screw if it is installed on the top of the thermostat controller. How to wire or assemble the johnson a419 thermostat external thermometer.