Press the HOLD button to bypass the program schedule. Old Terminal from New Terminal for New Terminal for Existing Thermostat New Thermostat New Thermostat (PSTS21P52) (PSTS11P52)Ĭooling Transformer Heating Transformer 24 VAC Reversing Valve (Heating) Reversing Valve (Cooling) Cooling or Compressor for HP System 1st Stage Heat or Emergency Heat Fan Control 24 VAC Common 2nd Stage Heatġ.
Be sure to use the correct column for the new thermostat. Note the chart includes information for Proselect® PSTS11P52 and PSTS21P52 thermostats. As an example, if the old thermostat had a G connection, it goes to G on the new thermostat.
Use the chart below to determine the new thermostat connections. Remove the old sub-base from the wall, again being careful that the wires do not slip into the hole in the wall. Secure the wires to prevent them from slipping into the hole in the wall. After labeling the old wires, loosen each connection and remove them from old sub-base. Depending on the brand of the old thermostat, your letters may be different. Label every old wire with the letter of the connection to which the wire is attached. The old sub-base should remain wired and on the wall until steps 4 and 5. Depending on the brand, these parts may pull off or need to be unscrewed. Carefully remove the cover and electronics body from the old thermostat sub-base. Always turn off power to the air conditioning or heating system prior to removing existing thermostat.
The sub-base, where the wires attach through the wall to the existing system. The electronics or body, which controls the existing system. The cover, which may snap or hinge over the existing thermostat. Replacing Existing Thermostat Most thermostats have three parts: DC Power: 3.0 Volt DC (2 AA Alkaline batteries included). Electrical Rating: 24 Volt AC (18-30 Volt AC) 1 amp maximum load per terminal 2 amp total maximum load (all terminals) (PSTS11P52) 3 amp total maximum load (all terminals) (PSTS21P52). Any other use is not recommended and will void the warranty. This thermostat should only be used as described in this manual. This thermostat also requires two (2) properly installed “AA” alkaline batteries to retain clock setting in the event of loss of AC Power due to a power outage or rolling blackouts when used as a hardwired thermostat. Refer to “Low Battery Detection and Replacement” section for more information. This thermostat is a dual power thermostat and either requires 24 Volts AC Power or two (2) properly installed “AA” alkaline batteries for normal operation and control of the heating or cooling system. Always turn off power to the air conditioning or heating system prior to installing, removing, cleaning or servicing thermostat. Specifications Installation Testing Your New Thermostat Programming User Settings Temperature Adjustmentįeatures 7 Battery Replacement 8 Troubleshooting 9 Wiring Diagrams PSTS21P52 Multi-Stage 2 Heat / 1 Cool Conventional and Heat Pumpīefore Installing, Programming or Operating, PLEASE READ ALL INSTRUCTIONS 1 2 3 4 5
0 kommentar(er)
