Model 60 shown. Automatic Digital Humidifier Control Model 60 & 62 Safety and Installation Instructions READ COMPLETE INSTALLATION INSTRUCTIONS AND TEMPLATE BEFORE STARTING INSTALLATION. WARNING ATTENTION INSTALLER: This product must be installed by a qualified heating and air conditioning contractor. Failure to do so could result in serious injury from electrical shock.
WARNING 1. 120/240 volts may cause serious injury from electrical shock. Disconnect electrical power to the furnace and humidifier before starting installation. 2. Sharp edges may cause serious injury from cuts. Use care when cutting plenum openings and handling ductwork. CAUTION 1. Do not set humidifier higher than recommended. Condensation damage may result. TABLE OF CONTENTS Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 4 System Checkout . . . . . . . .
INSTALLATION Figure B Use the “OFF” setting for Model 800 Series humidifiers. STEP 1: Unpack the Humidifier Control Carton Make sure all components are present (see Figure A): A. Humidifier Control B. Outdoor Temperature Sensor C. Manual Mode Label Use Setting “A” for Model 400 Series humidifiers in areas with very hard water. The indicator will light after 150 hours of humidifier operation.
DUCT (SHEET METAL) MOUNT: STEP 4: Determine Location for Humidifier Control and Mount Control Humidifier Control must be mounted on the Return Duct, at least 6 inches upstream of the following (see Figure C): After location for Control is selected, drill a 3/4 inch hole for the RH sensor (the RH sensor extends from the back of the Humidifier Control).
Figure D – Fiber Board Duct Mount Figure E – Digital Humidifier Control 24V Terminals CONTROL BOARD COVER GASKET R SCREW (x2) C A B ODT W G H H Gf KNOB INSIDE OF RETURN DUCT OUTDOOR TEMPERATURE SENSOR BASE PLATE SHEET METAL PLATE COMMUNICATION WITH APRILAIRE 8570 THERMOSTAT RETURN DUCT RETURN DUCT CUT OPENING IN RETURN DUCT SHEET METAL PLATE HEAT SIGNAL FROM HVAC EQUIPMENT 24 VAC FROM HVAC EQUIPMENT “R” AND “C” SOLENOID CONTROL OUTPUT FAN SIGNAL FROM THERMOSTAT 90-1203B 8 FAN SI
STEP 5: Determine Location for Outdoor Temperature Sensor STEP 7: Alternate Location for Outdoor Temperature Sensor The location of the Outdoor Temperature Sensor must meet these three requirements: WARNING 1. Must be mounted on North, East or West side of house out of direct sunlight. If Outdoor Temperature Sensor is mounted in an intake duct or pipe, do not set Blower Activation switch to “ON”. 2. Must be at least 3 feet from all exhaust vents.
STEP 8: Route the Wire from Control to Sensor Run wire to the outdoor temperature sensor. Sensor is not affected by lead lengths less than 300 feet. CAUTION Do not run outdoor temperature sensor alongside wires carrying high voltage (120 VAC or higher). Secure the sensor bracket with a #8 screw. STEP 9: Attach Sensor Wire to Humidifier Control Strip wire 1/4 inch, and insert the wires from the Sensor into the terminals labeled “ODT” on the Humidifier Control. See Figure H for location of terminals.
STEP 10: Model 60 Wiring for Model 400, 500, 600 and 700 Series Humidifiers – See Figure K WARNING 120 volts may cause serious injury from electrical shock. Disconnect electrical power to the furnace before starting installation. Strip the wires used for all Humidifier Control terminal connections 1/4 inch. • Wire “Gf” on the Model 60 to “G” on the furnace terminal strip. • Wire “W” on the Model 60 to “W” on the furnace terminal strip. • Replace cover and knob.
STEP 11: Model 62 Wiring for Model 800 Series Steam Humidifier – See Figure L Figure L – Model 62 Wiring for Model 800 Series Steam Humidifier WARNING 120/240 volts may cause serious injury from electrical shock. Disconnect electrical power to the furnace and humidifier before starting installation. ADHC TERMINAL STRIP POWER R C INPUTS A B ODT W OUTPUTS G H H Gf Strip the wires used for all Humidifier Control terminal connections 1/4 inch.
Blower Activation Test SYSTEM CHECKOUT • Deactivate HVAC system or heat pump. 1. Replace the cover by snapping it into the Humidifier Control base. Also replace the knob onto the Control. 2. Turn Blower Activation switch to OFF 3. Restore power to the HVAC system. 4. Activate the HVAC system or heat pump (Fan or Heat). 5. Once the blower is operating, rotate the knob of the Humidifier Control Clockwise to the “Test/Reset” position.
TROUBLESHOOTING GUIDE SYMPTOM Call Dealer For Service Light Flashing (see Figure M). TROUBLESHOOTING PROCEDURE TROUBLESHOOTING PROCEDURE (CONTINUED) 3. Rotate Humidifier Control knob to the “Test/Reset” position. After 5 seconds, the green “Humidifier On” light will blink, resetting the error. If E3 returns, replace the Humidifier Control. Manual Mode (switch in “MAN” position) Applies to both Automatic and Manual Operation unless indicated otherwise. 1.
TABLE 1 SYMPTOM Outdoor Temperature (°F) Resistance (kΩ) ±10 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 231.8 163.4 117.3 84.8 62.2 46.1 34.4 26.1 19.9 15.3 11.9 9.3 7.3 5.8 Figure M Red “Call Dealer For Service” Light Yellow “Change Water Panel” Light Green “Humidifier On” Light Humidifier does not operate in “Test/Reset” mode.
SYMPTOM Yellow “Change Water Panel” light is blinking (see Figure M). TROUBLESHOOTING PROCEDURE Check the condition of the Water Panel and replace it if mineral deposits are blocking air flow. Follow the instructions on the Water Panel box. Rotate the knob to the “Test/Reset” position for at least 5 seconds to reset Water Panel change timer. Check that the timer setting is correct for the humidifier model and water conditions (see Figure B).
SYMPTOM Humidifier operates constantly. • If the humidity level in the home is less than the Humidifier Control knob setting and there is a continuous fan call or heat call (depending on setup), the Humidifier Control will operate the humidifier until the humidity level is higher than the Humidifier Control knob setting. TROUBLESHOOTING PROCEDURE • Set Blower Activation switch to OFF. • In the “Test/Reset” mode, verify that the humidifier turns off after 1 minute.
RESEARCH PRODUCTS CORPORATION P.O. BOX 1467 • MADISON,WI 53701-1467 Call 800/334-6011 • FAX 608/257-4357 10008977 6.