Honeywell HCM-631N User Guide - Page 46

OPTION 14: TrueSTEAM humidifier wired to equipment with powered terminals with TrueSTEAM controlling the fan 24 V 1 24 V 1 HUM 3 HUM C GT AIR-FLOW SWITCH 2 R RT GF EXT HUM W2 Y1 DHUM G COM W/W1 Y/Y2 R 3 TrueSTEAM NOTES: FURNACE TERMINALS 1 YOU MUST ADD A 24VAC ISOLATION RELAY BETWEEN THE TRUESTEAM HUMIDIFIER AND THE AIR HANDLER. AN R8222B1067 COULD BE USED. 2 THE 50027910-001 AIR-FLOW SWITCH (AFS) IS RECOMMENDED TO ENSURE THERE IS AIR-FLOW WHEN THE HUMIDIFIER IS RUNNING. IF THE AFS IS NOT USED, THE 4 DIPSWITCH MUST BE SET TO THE ON POSITION AT THE HUMIDIFIER (UP). 3 INFINITY/EVOLUTION CONFIGURATION 1. IN SETUP UNDER THE INSTALL/SERVICE MENU: A. SELECT ACCESSORIES AND CHOOSE YES FOR HUMIDIFIER AND SET THE OPTION HUMIDIFY WITH FAN TO YES. B. SELECT FURNACE SETUP. UNDER THE G TERMINAL SET UP, SELECT THE FAN OPTION AND SET THE FAN SPEED TO LOW. A 24VAC ISOLATION RELAY MUST BE USED BETWEEN THE FURNACE AND THE HUMIDIFIER TO ISOLATE THE TWO TRANSFORMERS. EQUIPMENT DAMAGE WILL OCCUR IF NOT USED. 1 23 On 4 56 Off AFS Monitor Recommended THE HUMIDIFY WITH FAN OPTION MUST BE SELECTED. THIS WILL ALLOW THE SYSTEM TO CALL FOR HUMIDIFICATION WITHOUT A HEAT CALL. THE G TERMINAL MUST BE SET TO FAN. THIS WILL ALLOW THE HUMIDIFIER TO CONTINUE TO RUN THE FAN AFTER THE HUMIDIFICATION CALL IS SATISFIED. THE TRUESTEAM HUMIDIFIER REQUIRES THE FAN TO CONTINUE TO RUN UNTIL THE WATER TEMPERATURE IN THE RESERVOIR IS COOLED TO 170 DEG TO PREVENT STEAM FROM CONDENSING IN THE DUCTWORK. THE INFINITY SYSTEM WILL RUN ITS FAN AT LOW SPEED WHEN IT HAS A CALL FOR HUMIDIFICATION WITHOUT A HEATING CALL. THIS AIRFLOW IS 50% OF HEATING OR COOLING AIRFLOW (WHICHEVER IS GREATER). MAKE SURE AIRFLOW SATISFIES ANY MINIMUM REQUIREMENT FOR YOUR TRUESTEAM HUMIDIFIER. FURNACE SET UP IS SHOWN. FAN COIL SET UP WILL BE SIMILAR. M33044 WIRING 44 TrueSTEAM Humidification System 69-2285-01