Aprilaire 60, 62 User Manual
Model 60 shown.
Automatic
Digital Humidifier Control
Model 60 &62
Safety and Installation Instructions
RE AD COMP L ETE INS TA L LATIO N IN S TRUC TION S
AN D TE MPLATE BEF ORE START I NG INSTAL L AT ION.
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.
TABLE OF CONTENTS
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 4
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 18
Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 20
THESE INSTALLATION INSTRUCTIONS
ARE FOR THE APRILAIRE
HUMIDIFIER CONTROL ONLY!
For Aprilaire
follow Aprilaire Humidifier Installation Instructions.
®
AUTOMATIC DIGITAL
®
humidifier installation,
32
Water Panel
Indicator
Settings
INSTALLATION
B
A
C
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
Figure A
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 Indicator Setting
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).
90-1201B
Figure B
Use the “OFF” setting for Model 800
Series humidifiers.
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
90-1202B
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.
54
STEP 4: Determine Location for Humidifier Control
6" MIN.
RETURN
DUCT
HUMIDIFIER
CONTROL
FRESH AIR
INTAKE
COIL
HUMIDIFIER
BYPASS
CONNECTION
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.
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 extends from
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 Figure D).
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.
76
Figure D – Fiber Board Duct Mount
CONTROL BOARD
COVER
KNOB
BASE PLATE
RETURN DUCT
RETURN
DUCT
SHEET METAL
PLATE
CUT OPENING IN
RETURN DUCT
SHEET METAL PLATE
GASKET
SCREW (x2)
INSIDE OF
RETURN
DUCT
HHGfW GODTBACR
OUTDOOR
TEMPERATURE
SENSOR
24 VAC FROM
HVAC EQUIPMENT
“R” AND “C”
COMMUNICATION
WITH APRILAIRE
8570 THERMOSTAT
HEAT SIGNAL
FROM HVAC
EQUIPMENT
FAN SIGNAL
FROM
THERMOSTAT
SOLENOID
CONTROL
OUTPUT
FAN SIGNAL
TO HVAC
EQUIPMENT
Figure E – Digital Humidifier Control 24V Terminals
90-1203B
90-1397B
98
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