User manual FIELD CONTROLS 46259500

[. . . ] TM-90R/TM-2000 HUMIDISTAT INSTALLATION INSTRUCTIONS CAUTION: DISCONNECT THE TM-90R/TM-2000 TRANSFORMER FROM THE RECEPTACLE AND SWITCH "OFF" THE FURNACE ELECTRICAL SUPPLY PRIOR TO INSTALLING THIS HUMIDISTAT. [. . . ] Refer to the Wiring Diagram and attach the wires to the Humidity Control terminals #2 and #3, both Transformer terminals and both TM-90R/TM-2000 terminals, as indicated. The Wiring Diagram shows the proper wire termination required for each connection. CAUTION: All wiring should conform to The National Electrical Code, NEC, and any applicable local codes. 6. Attach the Foam Mounting Gasket to the Return Air Plenum around the opening which was previously cut. Secure the Base Plate to the furnace plenum using the two screws supplied. Attach the Cover to the Base Plate, then attach the Adjustment Knob to the Knob Extension. Switch "ON" the electrical supply to the furnace and plug the TM-90R/TM-2000 Transformer The Humidistat will allow the electrical current supplied by the Transformer to flow to the TM-90R/TM-2000 when there the return air plenum humidity drops below the Humidity setting. The TM-90R/TM-2000 "ON/OFF' action is still controlled by the thermal switch which senses warm air flow. [. . . ] It may be necessary to adjust the Knob to a higher or lower setting based upon the actual humidity level within the home. NOTE: P/N 46259500 [. . . ]