READ COMPLETE SAFETY INSTRUCTIONS AND INSTALLATION TEMPLATE BEFORE STARTING 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. This product must be installed in compliance with all local, state and federal codes. FAN POWERED HUMIDIFIER WARNING CAUTION SPECIFICATIONS 1. ELECTRICAL SHOCK HAZARD. RISK OF PROPERTY AND EQUIPMENT DAMAGE. HUMIDIFIER DIMENSIONS Disconnect electrical power to the furnace 5. Do not connect the humidifier power cord to multi-speed 1. Do not install humidifier where freezing temperatures 29 and install lock-out tag before starting could occur. The water line could freeze and crack furnace blower motors or blower motors other than 120 VAC. Width 15 ⁄32” installation. Failure to do so could result in causing water damage to the home. Premature component failure may result. Height (including solenoid valve serious injury from electrical shock. and drain spud) 18” 2. Do not install humidifier on the furnace cabinet. 6. When installing Manual Humidifier Control on a downflow Depth 10 11⁄32” 2. SHARP EDGES HAZARD. Sharp 3. Do not install humidifier on a plenum face where the furnace, ensure blower continues to run after a heat call is edges may cause serious injury from cuts. blanked off ends of the cooling coil will restrict air satisfied to eliminate high temperatures from damaging the PLENUM OPENING Use care when making plenum openings movement through the humidifier. Control. 3 5 and handling ductwork. 14 ⁄4”W x 14 ⁄16”H 4. Do not set humidity level above recommended or to 7. Do not install humidifier where water pressure exceeds 3. RISK OF SCALDING. Water recommended level if condensation exists on inside 125 psi, since damage to the humidifier may result. Follow WATER FEED RATE temperature over 125°F can cause severe windows of any unheated space, as condensation codes in effect concerning pressure reduction. 6 gph burns and scald instantly. Shut off the damage may result. Excess humidity can cause 8. Do not install humidifier on the supply plenum where static hot water supply before disconnecting or moisture accumulation which can allow the possibility pressure exceeds 0.4 in. wg. ELECTRICAL DATA tapping into any hot water supply line. for mold growth in the home. 120 VAC-60 Hz, 0.8 AMP WIRING DIAGRAMS INSTALLATION OPTIONS DIAGRAM A DIAGRAM B Typical Alternate STANDARD FURNACE STANDARD FAN COIL Installation Installation ™ VARIABLE SPEED FURNACE WITH BLOWER ACTIVATION RELAY HumidiTrac HOT WATER VARIABLE SPEED FAN COIL RETURN Automatic Humidifier Control SUPPLY RETURN SUPPLY HUMIDIFIER HUMIDIFIER HUMIDIFIER CORD PLUGGED INTO 120 VAC POWER SOURCE HUMIDIFIER CORD 24 VAC LEADS PLUGGED INTO 24 VAC LEADS 120 VAC POWER SOURCE #4851 BLOWER ACTIVATION RELAY SEE WIRING For detailed Automatic Humidifier MANUAL INSTRUCTIONS HUMIDIFIER 90-921 Control installation and wiring INCLUDED WITH CONTROL 4851 RELAY instructions, see Form IM-AHC-03 C CONSTANT 24 VAC MIN 10 VA MANUAL included with Control. HUM 90-847 HUMIDIFIER CONTROL Orientation of Humidifier 90-848 to Cooling Coils BLANKED DIAGRAM C DIAGRAM D DIAGRAM E OFF END OF HUMIDITY SENSING THERMOSTAT HOOK-UP ZONING HOOK-UP NEW COMMUNICATING CONTROL HOOK-UP COIL WITH ALL INDOOR EQUIPMENT WITH EQUIPMENT CONTROLLER WITH ALL INDOOR EQUIPMENT HUMIDIFIER HUMIDIFIER HUMIDIFIER 90-922 INDOOR COOLING COILS IN UNIT WARM AIR PLENUM EQUIPMENT Humidifier to be installed as CONTROLLER HUMIDIFIER CORD HUMIDIFIER CORD HUMIDIFIER CORD shown in relation PLUGGED INTO A PLUGGED INTO PLUGGED INTO 24 VAC to cooling coils. 120 VAC POWER SOURCE 24 VAC 120 VAC POWER SOURCE 24 VAC 120 VAC POWER SOURCE LEADS B LEADS LEADS C HUM WARNING: D HUMIDITY SENSING DO NOT CONNECT NOTES THERMOSTAT INDOOR C FURNACE HUM TERMINAL 90-850 90-851 UNIT C HUM DIRECTLY TO HUMIDITY 1. The humidifier is not suitable for installation on ducts SENSING THERMOSTAT C HUM with horizontal airflow. Performance will be reduced. HUM TERMINAL 90-849 2. When installing humidifier on a heat pump system, use hot water. The heated water supplements the reduced supply air temperature as added heat for evaporation. © 2018 CAC/BDP 7310 West Morris St., Indianapolis, IN 46231 TEMPLATE MUST BE LEVEL READ REVERSE SIDE FIRST! – TOP – READ REVERSE SIDE FIRST! READ COMPLETE SAFETY INSTRUCTIONS AND INSTALLATION TEMPLATE BEFORE STARTING Figure 1 Figure 2 Figure 3 Figure 4 FURNISHED ITEMS 24 VAC Manual Humidifier Control Saddle Valve Humidifier Installation Template ITEMS NOT FURNISHED Mounting screws (sheet metal screws) Water supply line (1/4” copper) Drain line (1/2” I.D. hose) 24 VAC Transformer Low voltage wire Current Sensing Relay Part No. P-110-005 (if required) 90-923 90-924 90-925 90-926 1. Place the humidifier on a flat surface. Unlatch additional hole is provided at the bottom for NOTE: The saddle valve is designed humidifier cover assembly from base assembly securing the base to the plenum. (See Figure 2) 6A. MANUAL HUMIDIFIER CONTROL INSTALLATION INSTRUCTIONS: to be fully opened or closed. Do not The Manual Humidifier Control is designed for low voltage service to control humidification equipment. An use it to regulate water flow. at the bottom of the cover, lift and set aside. Pull 4. While pressing the base against the plenum, increase in relative humidity expands the nylon ribbon that opens the control switch to stop operation of the out the evaporative assembly by grasping at the reach through the center opening and turn left 9. Connect tubing from the saddle humidifier. A decrease in relative humidity reverses the process and closes the control switch. top and tipping out. (See Figure 1) and right swing latches down to secure the valve to the inlet side of the solenoid 1 2. Using a level, position this template at least base onto the plenum. (See Figure 3) LOCATION GENERAL INSTRUCTIONS valve using ⁄ 4” O.D. copper tubing 1 1⁄ 2 inches above the furnace housing or cooling (not furnished). DOUBLE WRENCH TO 5. Reinstall the evaporative assembly into the For Wall Mount: 1. Do not attempt to repair or recalibrate PREVENT LEAKING! (See Figure 4) coil if applicable, for clearance of the drain line. base, with the bottom of the scale control insert Trace around template edges. When there is 1. Locate on inside wall of living area approximately 5 feet Humidifier Control. Humidifier Controls (5) sitting firmly in the inside of the drain spud above floor. requiring service should be returned to 10. Drain spud is designed to accept insufficient space on the supply plenum, the attached to the base. Push the evaporative 1⁄ 2” I.D. plastic hose (not furnished). humidifier can be installed on the return duct 2. Do not locate Control in the direct path of furnace your distributor. assembly in at the top between the retaining discharge air or drafts from open doors and windows. Run drain line from drain spud to floor provided the humidifier is supplied with hot 2. Use Humidifier Control in low voltage ribs that hold the assembly in place in a vertical 3. Do not install where operation might be affected drain. CAUTION: If hose clamp is used, water. Remove the template and accurately cut (24 VAC) applications only. Install 24 VAC position. Reinstall cover assembly by hooking by lamps, sunlight, fireplace registers, radiators, do not overtighten, drain spud could the plenum opening 14 3⁄4”W x 14 5⁄16“H, being wiring to Humidifier Control as shown in at the top of base assembly and latching at the concealed air ducts and pipes or room occupants. crack. Make sure drain line has careful to avoid injury from sharp edges. Wiring Diagrams, opposite side. bottom. 4. The basic rules for location of thermostats also apply to constant downward slope and is not kinked. NOTE: Do not sweat or directly 3. Position the two plastic hooks on the top of 6. Locate and install the Manual Humidifier humidifier controls. 3. Make sure no bare wires are exposed or base along the top edge of the plenum opening. 5. Remove and discard foam gasket and secure control to insulation damaged. Insulation on wire attach metal drain line to fitting. Do Control by following the instructions shown not use solvent type adhesives when Push base up to engage the two hooks and in step #6A. For Automatic Humidifier wall over wire access opening with screws provided. should extend to head of screws. sheet metal along the top edge opening. Push connecting plastic drain line, since Control installation instructions, see Form 4. Make sure all splices are mechanically base in and slide down so that the bottom four For Return Duct Mount: damage to fitting could result. IM-AHC-02 included with the Automatic 1. Position manual humidistat at least 6” upstream of and electrically secure. hooks engage the sheet metal at the bottom Control. DISCONNECT ELECTRICAL POWER TO 11. Open saddle valve completely edge of the opening. Secure base to opening bypass duct connection or humidifier. 5. To remove dirt or other foreign matter FURNACE BEFORE PROCEEDING! 2. Avoid injury from sharp edges when cutting opening. and turn on furnace. Turn up using top three screw holes in housing. An from nylon ribbon and control interior, dust Humidifier Control so that humidifier 3. Make sure foam gasket is in place and secure control lightly with a fine, soft brush. to duct with screws provided. will turn on. Allow humidifier to run until water is observed coming PARTS LIST out of the drain line. Check to see 7. The humidifier power cord must be plugged into a 120 if humidifier and saddle valve are 7 watertight. Check operation to make 1. Front Cover 10.