Carnes HXAAE Installation Manual

CARNES COMPANY 448 S. Main St., P. O. Box 930040, Verona, WI 53593-0040 Phone: [phone] Fax: [phone] www.carnes.com

COPYRIGHT © 2013 CARNES COMPANY

ALL RIGHTS RESERVED

SUPERSEDES 16813 16813-A

SPECIFICATIONS

INSTALLATION

Air flow in the duct may be sensed by using this differen­tial pressure switch. The differential in pressure between
the interior of the duct and ambient when air is moving in
the duct closes a micro switch allowing the humidifier to
operate.

Setpoint:

Factory Set, 0.07” (1.8mm) W.C.

Field Adjustable, 0.07 to1” (1.8 to 25.4mm) W.C.
Sensing Element: Neoprene diaphragm.
Differential: 0.04” (1mm) W.C. at minimum setpoint to

0.1” (3mm) W.C. at maximum setpoint.

Environment:

Ambient Temperature Limits,

Shipping -40 to 140

O

F (-40 to 60OC).

Operating 35 to 140OF (0 to 60OC).
Humidity, 5 to 95% R.H., non-condensing.
Locations, NEMA Type 1 indoor only.

Maximum Pressure: 12” (305mm) W.C.
Electrical Switch: Snap action SPDT.
Connections: Coded screw terminals.
Case: All metal with 1/2” (13mm) conduit opening.
Mounting: In vertical position on any surface free of

vibration

AIR FLOW SWITCH WIRINGMake all electrical connections in accordance with job wiring
diagram and in compliance with national and local electrical
codes. On an increase of air pressure to above setpoint, common
contact of switch is made to normally open contact. On a
decrease of air pressure to below setpoint, common contact of
switch is made to normally closed contact. Avoid locations where
excessive moisture, corrosive fumes or vibrations are present.

Avoid running control wiring near high voltage primary wires.

Adjustment
Note: Units are shipped at minimum setpoint.

To increase setpoint, turn adjustment screw clockwise.
Adjustable 0.05 +

0.02” to 1.0” (1.25mm + 0.5mm to 25mm) W.C.

To decrease setpoint, turn adjustment screw counterclockwise.

Increase
Pressure

IP [English] Dimensions

SI (Metric) In Parentheses

SPECIFICATIONS AND INSTALLATION

MODEL HXAAE

AIR FLOW SWITCH, PRESSURE DIFFERENTIAL TYPE

N.O. makes on increase of pressure

(N.C.)

(N.O.)

To Terminal 1 or 2 on J18

To Terminal 1 or 2 on J18 COMMON

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