CARNES HXHAS Owner's Manual - Page 6

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installation

duct mounted installation

1. Choose a location in the duct that

is downstream of the humidifier

steam distribution unit. Make sure

the humidistat mounting location is

close enough to plug in the sensor.

install the sensor a minimum

of 6" ahead of or a minimum

15" after a change in air flow

direction or obstruction in the

duct. do not install duct sensor

near outdoor air intake.

2. Drill a 1/2" holes in the duct to

place the sensor. Use a sheet

metal screw (D) to attach the sen-

sor to the duct. Arrows in the duct

mount sensor indicate the direction the air flow should pass over the

sensor for optimal measurements.

3. Mount the humidistat display to a wall or duct in a convenient

location that allows easy adjustment to the settings. To mount the

humidistat, remove the back plate and install with screws (D or E)

through the mounting holes.

4. CAUTION: do not plug or un-plug the duct sensor with power

applied to the humidistat, the humidity sensor will break. Plug the

duct sensor into the humidistat. Pay close attention to the orienta-

tion of the plug or permanent damage will occur to the sensor. See

Figure 3 for proper orientation of the duct sensor plug. Place the

hook of the red plug up and away from the humidistat display board

and push onto the white connector located in the bottom left corner

of the humidistat display board. The wire colors also market on the

circuit board and match the correct orientation of the plug wires.

CAUTION: Turn off power before plugging or un-plugging duct

sensor. Do not plug or un-plug the duct sensor with power applied to the

humidistat, the sensor will break.

CommerCial humidiStat

Figure 2: Duct Sensor

Air Flow

Form 16767