INSTALLATION AND OPERATING INSTRUCTIONS Thank you for
Contents
1. ls as newer well insulated buildings Read these instructions carefully This humidistat requires a 24 volt AC power supply Improper voltage can cause malfunction or damage to the control The technical specifications for this product and the contents of the user manual are subject to change without notice Specifications Voltage 18 30 VAC 60Hz Switching Load 1ampmax 30 volt Outdoor Sensor max 200 ft 61m Auto Mode Control Range 10 60 RH Outdoor Temp 10 F 23 C min Manual Mode Control Range 10 75 RH Accuracy RH 77 F 25 C 10 90 3 RH Accuracy Drift Per Year 0 5 RH Accuracy Indoor Temp 9 2 F 1 C Accuracy Outdoor Temp 22 F 1 C Resolution Temp or RH 1 or 1 Relay Close Setting 1 RH Relay Open Setting 1 RH Humidistat Locations Outdoor Sensor Location YES NO z ss YES NO Return Air Duct Supply Plenum x S i North Wall South Wall Interior Wall Furnace Jacket Geo amp B _ East Wall West Wall Where it s Seen Furnace Room Wall po Oe af Over Snow Line Below Snow Closet Closed Room voa t VES Inlet of Air Intake Deep in Intake Anywhere in Garage Less than 200 from More than 200 On Block Wall humidistat from humidistat Crawl space Kitchen Wall Laundry wall Out of Sight wor Wall Installation Duct Installation Wall base has vents 5 of Ce Duct base no vents Pi tals t Wi wires are run inside well ch cut rectangular o2. when showing indoor temperature To change between F and C units press the F C button Trouble Shooting HOUSE Flashing The indoor temperature sensor has failed TREE Flashing The outdoor temperature sensor has failed Humidifier Turns On and Off Repeatedly Check that input voltage is between 18 and 30 volts AC and not intermittent Check that humidistat is NOT mounted 1 on supply duct 2 downstream of humidifier 3 closer to humidifier than 12 inches Make sure that Outdoor Sensor wiring is not close to line voltage wires Humidifrer Runs Continuously If humidifier operates while HVAC system is off check that power to humidifier is switched with HVAC operation if humidifier operates every time HVAC System runs compare humidity to set point If humidity is lower than set point humidistat will call for operation Humidifier Does Not Run Check wiring to from humidistat Verify 18 30 volts Use TEST MODE Humidifier Runs When Air Conditioning Is On If this is undesirable change wiring to be powered only in heating periods Humidity not high enough Fault with Humidifier Check humidifier water supply electrical connections HVAC operating time too short Check humidifier trouble shooting Humidifier undersized Review humidity load and humidifier capacity Humidity Too High Wiring fault Set humidistat to OFF mode and check that operation ceases Outdoor sensor is being kept warm Check that sensor is no
3. INSTALLATION AND OPERATING INSTRUCTIONS Thank you for choosing this Automatic Digital Humidistat About the Automatic Digital Humidistat In Automatic Mode the humidistat will adjust the humidity in your home based on the outdoor temperature lowering the humidity in cold weather to reduce condensation The humidistat can operate in Manual Mode to control humidity to a specific relative Humidity In most homes Automatic operation is preferred to reduce condensation on windows and within the structure Manual mode is necessary where the outdoor temperature sensor cannot be installed Manual mode may be desirable where valuable artwork instruments or woodwork demand constant humidity The LCD Display is backlit and easy to read Operation and Installation are simple The humidistat can be maunted on an interior wall or on the return duct of the HVAC System Precautions This Humidistat must be installed by a Qualified Technician Always turn off power to the HVAC system prior to Installing or Servicing the Humidifier or Humidistat Improper operation can result in over or under humidification Over humidification can result in condensation structural damage or mold Condensation within a building s structure can cause a loss of structural strength Condensation can also enable mold and mildew growth resulting in personal injury and damage to building structure and contents Older and poorly insulated structures cannot withstand the same humidity l v
4. e vapor barriers triple pane tindows and high R value insulation 1 2 Older than 1950 no vapor barrier little insulation 3 4 Built 1950 1965 no vapor barrier R6 insulation 5 6 Built 1965 1975 craft vapor barrier R11 insulation 7 8 Built 1980 1990 craft vapor barrier R19 double pane windows 9 10 Built after 1990 poly vapor barrier R38 insulation foam exterior cladding triple pane windows condensation is seen or suspected reduce index by 2 until condensation stops The vel bars indicate the humidity index one bar for two index points __ consumer must send the defective part to the manufacturer AUTO Mode Target Humidity Humidity Outdoor Temperature F OFFSET Made To change the calibration of the humidistat an offset may be entered to the Humidity Indoor Temperature or Outdoor Temperature displays Press both UP and DOWN buttons together to enter OFFSET mode The word OFFSET and RH will display Press UP or DOWN to change the humidistat s Humidity calibration Press both UP and DOWN buttons together again to change the Indoor Temperature Offset Press both UP and DOWN buttons together again to change the Outdoor Temperature offset Display a Temperature Press the THERMOMETER button to move between displaying indoor and outdoor temperature Tree will be displayed when showing outdoor tempera ture House will be displayed
5. pening F If wires are run inside duct cut rectangular opening A Secure lhe base with the two plastic anchors and scrow s Secure the base with the two sheet metal screws Wiring WIRING TO 24V HUMIDIFIER WIRING OUTDOOR SENSOR g SPLICES NO MORE THAN ONE PER LEAD CONSTANT 24 VOLTS e 200 FEET E NOTE Separate sensor leads from line voltage wires by at leas 4 inches 246 VOLT KUMIDIFIER SOLENOID VALVE OR ORUM MOTOR l si FIEL SUPPLIES CONSTANT 24 VOLTS 120 VOLTS SWITCHED Wi FURNACE OPERATION Testing the System Re assemble system and check all connections Restore power to the HVAC system Start HVAC System by raising thermostat setting Check to see that display is on Set to TEST MODE by pressing Drop and thermo together for 5 seconds The relay will close and the will flash for 2 minutes or press a key to set to OFF MODE 6 Set ta OFF mode to verify humidifier operation ceases 7 The humidistat will stay in OFF Mode unless set to Manual or Automatic mode See Operation ahon Operating Modes Press any button to light the display Press the DROP button to select the Operating Mode Off Manual or Auto OFF Mode The Humidifier is turned off MANUAL Mode DROP oo The humidistat will work to maintain the single a ae humidity selected You can set your desired VE h
6. t buried in snow on south side of house being warmed by sun or is too far inside of air intake Limited Warranty This humidistat is warranted to the consumer against defects in materials and workmanship for a period of one year from the date of installation Defective parts will be repaired without charge except for removal reinstallation and transportation costs To obtain repair service under this limited warranty the There are no express warranties covering this humidistat other than set forth above The implied warranties of merchantability and fitness for a particular purpose are limited in duration to one year The manufacturer assumes no liability in connection with the installation or use of this product except as stated in this limited warranty The manufacturer will in no event be liable for incidental or consequential damages Any questions pertaining to this limited warranty should be addressed to the manufacturer USA The manufacturer has elected not to make available the informal dispute settlement mechanism which is specified in the Magnuson Moss Warranty Act 9804 100 001
7. umidity level by pressing UP or DOWN The humidifier will turn ON or OFF according to your manual setting The humidifier will operate when the measured relative humidity falls more than 1 below the set point until the measured relative humidity is 1 above the set 20 F 29 15 gaint When the humidifier is operating the will 10 F 23 C 20 display Humidity may have to be lowered when O F 18 C 25 neather is colder or if condensation is suspected The 10 F 12 C 30 settings table to the right or a similar table may be used 420 F 7 C 35 compensate for cold outside temperatures 30 F 1 C 40 AUTO Mode he humidistat will automatically raise the humidity s the outdoor teraperatureincreases This providesthehighestpossible humidity he humidistat will automatically lower the humidity as temperatures drop This ninimizes the risk of condensation on cold surfaces like windows Outdoor Suggested Temperature Setting he Auto Humidity Index Set Point may be changed from 0 low to 10 high by iressing UP or DOWN The Humidity Index is based on the outdoor temperature nd indoor humidity The humidifier will switch ON OFF according to the calculated uto humidity index set point When the humidifier is operating the will display ower Index settings are for older homes with less insulation and poor vapor barriers ligher Index settings are for newer homes with complet
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