Honeywell HE360 Installation Kit page 5

recommended to secure the hose to existing structures to
avoid accidental disconnection.
Installing Humidistat
Mounting Duct
1. Apply the template to the duct location chosen for
the humidistat. Make sure the template is level
before drilling the holes.
2. Refer to the template (provided with the H8908
Humidistat Installation Instructions) to drill the con-
trol assembly opening and mounting holes for the
H8908.
3. Remove the H8908 case from the base.
4. Position the foam gasket on the H8908 base.
5. Position the base on the duct with the arrow up.
6. Secure the base to the duct using the four
1 in. (25 mm) mounting screws provided with humi-
distat.
7. Connect the low-voltage wires to the leads and
replace the H8908 case. See Fig. 11.
NOTE: For wall mounting instructions, see the H8908
Installation Instructions.
HUMIDISTAT BASE
WIRE SLOT
Fig. 10. Humidistat base and rear view.
WIRING
CAUTION
Hazardous Voltage.
Can cause personal injury or equipment
damage.
Disconnect power supply before installing or
servicing equipment.
REAR OF HUMIDISTAT
HUMIDISTAT WIRES
M20179
HE360 HUMIDIFIER INSTALLATION KIT
IMPORTANT
All wiring must comply with applicable local
code, ordinances and regulations.
Wire the humidifier solenoid valve, pressure switch,
humidistat and transformer.See Fig. 12.
HUMIDIFIER
BLACK
SOLENOID
VALVE
Fig. 11. Wiring the controls.
NORMALLY OPEN (NO)
TERMINAL 1/4 (6) X 1/32 (1)
THICK QUICK CONNECT
ATTACH
WIRE TO HVAC
ADAPTOR
C TERMINAL
Fig. 12. Close-up of pressure switch wiring.
1. Run the two-strand thermostat wire from the humid-
ifier to the humidistat, and from the humidistat to the
pressure switch and back to complete the wiring
loop to the humidifier.
2. Cut lengths of thermostat wire to reach between
components, leaving adequate wire at both ends for
connections.
NOTE: Humidistat and pressure switch can be wired in
any order.
3. At the humidifier, connect the black and white con-
ductors to the two yellow humidifer wires. (The red
wires from the humidifier are not used.)
4. At the humidistat, connect both black conductors to
the two humidistat terminals. Use a wire nut to con-
nect together the two white conductors.
5
HUMIDISTAT
AIR PRESSURE
SWITCH
WHITE
M28969
ATTACH ADAPTER
WIRE TO HUMIDIFIER
C TERMINAL
COMMON (C) TERMINAL
1/4 (6) X 1/32 (1) THICK
C 1
1
QUICK CONNECT
2
3
2 3
2 3
NO
NC
+
PI
M27398A
69-2519—01