Aprilaire 56 Safety And Installation Instructions

SAFETY AND INSTALLATION INSTRUCTIONS
Model 56
Automatic Humidier ControlHumidier
WARNING
• ATTENTION INSTALLER: Read this manual before installing.
Improper installation or maintenance may cause property
damage or injury. It is recommended that installation, service,
and maintenance be performed by a trained service technician.
This product must be installed in compliance with all local, state,
and federal codes.
• ELECTRIC SHOCK HAZARD: 120 volts may cause serious injury from
electric shock. Disconnect electrical power to the HVAC system
and humidier before starting installation or servicing. Leave
power disconnected until installation/service is completed.
CAUTION
SHARP EDGES MAY CAUSE INJURY FROM CUTS. Use care when
cutting plenum openings and handling ductwork. Always wear
glasses/goggles and gloves when installing the unit.
NOTICE
CONDENSATION DAMAGE OR MOLD CAN OCCUR.
• Do not set the humidier control higher than recommended.
• Lower the humidity setting on the humidier control if there is
excess condensation on the inside of any windows in unheated
living spaces.
CONTROLLER DAMAGE OR MALFUNCTION MAY OCCUR IF
INSTALLATION INSTRUCTIONS ARE NOT FOLLOWED.
• Install the humidier control on return plenum only.
• Install the humidier control upstream of the bypass outlet.
• Do not install the humidier control facing downward.
• When installing the humidier control on the return duct of a
downow furnace, ensure the blower continues to run after
a heat call is satised to eliminate high temperatures from
damaging the humidier control.
• Do not use solvents or cleaners on or near the display and circuit
board. Chemicals can damage components.
• Do not apply 120 VAC to the humidistat. The humidistat is
powered by 24 VAC. Disconnect power to the humidistat prior to
separating humidistat from its base.
THESE INSTALLATION INSTRUCTIONS ARE FOR THE APRILAIRE® AUTOMATIC HUMIDIFIER CONTROL ONLY.
FOR APRILAIRE® HUMIDIFIER INSTALLATION, FOLLOW APRILAIRE HUMIDIFIER INSTALLATION INSTRUCTIONS.
WATER PANEL CHANGE INDICATOR
DOOR
CD
B
A
90-1009
FIGURE 1
STEP 2: DISASSEMBLE THE HUMIDIFIER CONTROL
Remove door from the Humidier Control by pulling the bottom of the
door straight out.
STEP 3: CHECK THE MODE SWITCH
With the door removed, notice the switch labeled BYPASS and POWER
(partially covered by the enclosure). Use the following guide to
determine the correct setting for your humidier model.
POWER SETTING: Models 110, 112, 445, 448, 760, 700 (almond-colored), 768,
800 (steam humidier)
BYPASS SETTING: Models 220, 224, 400, 440, 500, 550, 558, 560, 568, 600,
700 (gray-colored)
Product Info &
Digital Manual
STEP 1: UNPACK THE HUMIDIFIER CONTROL CARTON
Make sure all components are present (see FIGURE 1).
A. Humidier Control
B. Outdoor Temperature Sensor
C. Manual Mode Label
D. Manual Mode Resistor Case

Aprilaire 56 Specifications

General

Power Supply/Operating Voltage	24 VAC
Display	Analog dial
Mounting	Wall mount
Operating Temperature	32°F to 104°F
Compatibility	Aprilaire Humidifiers