Install Instructions

32
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 7
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 19
Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . .page 21
TABLE OF CONTENTS
THESE INSTALLATION INSTRUCTIONS
ARE FOR THE APRILAIRE
®
AUTOMATIC DIGITAL
HUMIDIFIER CONTROL ONLY!
For Aprilaire
®
humidifier installation,
follow Aprilaire Humidifier Installation Instructions.
WARNING
Hazardous Voltage can cause serious injury
from electric shock.
Disconnect electrical power to the furnace and
humidifier before starting installation.
Sharp edges can cut.
Wear gloves and use care when cutting plenum
openings and handling ductwork.
CAUTION
Condensation damage may occur.
Do not set humidifier control higher than
recommended.
Lower the humidity setting if there is excess
condensation on the inside of any windows in
unheated living spaces.
Install according to the enclosed installation
instructions.
Controller damage or malfunction may occur
if installation instructions are not followed.
Install humidifier control on return plenum only.
Install humidifier control upstream of the bypass
outlet or steam dispersion tube.
Do not install humidifier control facing downward.
GETTING STARTED
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
B
A
C
Figure A
90-1201B