Model 60 shown.
Automatic
Digital HumidifierControl
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.
2.Do not set humidity up to recommended levels if there is condensation on the inside of windows of any unheated living space. Condensation damage may result.
3.Do not mount the Humidifier Control on the supply plenum or duct. The unit cannot withstand the plenum temperatures and will malfunction.
4.When installing the Humidifier Control on a counterflow furnace, ensure the blower continues to run after the heat call is satisfied to eliminate high temperatures from damaging the Humidifier Control.
5.Do not mount the Humidifier Control downstream of the bypass outlet. False humidity conditions will cause the humidifier to operate incorrectly.
6.Avoid installing the Humidifier Control with the display facing downward to prevent the Humidifier Control from incorrectly measuring the relative humidity (RH) in the duct.
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TABLE OF CONTENTS
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 4
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 18
Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 20
THESE INSTALLATION INSTRUCTIONS
ARE FOR THE APRILAIRE® AUTOMATIC DIGITAL
HUMIDIFIER CONTROL ONLY! For Aprilaire® humidifier installation,
follow Aprilaire Humidifier Installation Instructions.
3
INSTALLATION
STEP 1: Unpack the Humidifier Control Carton
Make sure all components are present (see Figure A):
A. HumidifierControl
B.Outdoor Temperature Sensor
C.Manual Mode Label
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C |
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B |
Figure A |
90-1201B |
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STEP 2: Disassemble the Humidifier Control
Remove the knob. Remove the cover by pulling at the bottom and swinging it out and upward.
STEP 3: Check the Change Water Panel IndicatorSetting
This setting will control when the indicator light turns on, reminding you to change your water panel. If your Control came with a humidifier,the Control is pre-set for the humidifier. If the installation site has a 3-month or shorter heating season or very hard water,you may want to adjust the setting (see Figure B).
Figure B
Use the “OFF” setting for Model 800 Series humidifiers.
Wat er Pane l In di ca to r Seti ng s
90-1202B
Use Setting “A” for Model 400 Series humidifiers in areas with very hard water.
The indicator will light after 150 hours of humidifier operation.
Use Setting “B” for Model 400 Series,
and for 500 Series, 600 Series and 700 Series humidifiers in areas with very hard water. The indicator will light after 300 hours of humidifier operation.
Use Setting “C” for Model 500 Series, 600 Series and 700 Series humidifiers. The indicator will light after 600 hours of humidifier operation.
The Model 62 shipped with the Model 800 Steam Humidifier is factory set to “OFF”. The Model 62 does not have the “Change Water Panel” light on the Control. The Canister Change indicator for the Model 800 is on the humidifier.
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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):
•Humidifier
•Humidifier Bypass Ductwork (if applicable)
•Fresh Air Intake Ductwork (if applicable)
Ambient operating temperature of the Humidifier Control is to be from 20°F to 120°F to prevent damage to the control display.
RETURN |
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DUCT |
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6" MIN. |
HUMIDIFIER |
HUMI DIFIER |
CONTROL |
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FRESH AIR |
COIL |
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INTAKE |
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BYPASS
CONNECTION
Figure C
90-1137
DUCT (SHEET METAL) MOUNT:
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).
Use 2 sheet metal screws, 3/4 inch long (not provided), to mount the Humidifier Control. Use the mounting slot to level the Control, then secure the Control with the second sheet metal screw.
Make sure the Humidifier Control sensor gasket is seated tightly around the drilled hole. Do not install Control without gasket.
DUCT (FIBER BOARD) MOUNT:
After location for Control is selected, cut a rectangular hole in the duct board, no smaller than 6-9/16 inches long by 4-3/8 inches wide.
Cut a rectangular piece of sheet metal to fit behind the hole in duct board for mounting the Humidifier Control.
Drill a 3/4 inch hole for the RH sensor (the RH sensor extendsfrom the back of the Humidifier Control) into the sheet metal plate.
Use 2 sheet metal screws, 3/4 inch long (not provided), to mount the Humidifier Control.
Make sure the Humidifier Control sensor gasket is seated tightly around the drilled hole. Do Not Install Control Without Gasket.
Secure the sheet metal plate, with the Humidifier Control mounted, inside the duct (see FigureD).
CONTROL REPLACEMENT:
When replacing an existing control, the duct opening left by the removed control must be covered completely. Locate and install the new control as instructed previously in Step 4.
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Figure D – Fiber Board Duct Mount |
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RETUR |
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SH ET |
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DU CT |
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90-1203B |
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Figure E – Digital Humidifier Control 24V Terminals
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ODT |
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Gf |
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O R |
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FAN |
SIG NAL |
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TEM PER AT UR E |
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TO HVAC |
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SEN |
SOR |
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EQUI PME |
NT |
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CO MU NICAT ION |
HE AT |
SIG NAL |
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SOLE |
NOI D |
WITH AP RILA IRE |
FROM |
HVAC |
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CONT |
ROL |
857 0 THERMOSTA T |
EQUI PME NT |
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OU TPUT |
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24 VA C FROM |
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FAN |
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GN AL |
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HVAC EQU IPMEN T |
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FROM |
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“R” AN D “C ” |
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THE |
RMO |
STAT |
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90-1397B
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