Uponor A3040095 Installation Manual

INSTALLATION GUIDE

Aerial Snow Sensor
Installation Guide

RADIANT

HEATING SYSTEMS

AERIAL SNOW SENSOR

Aerial
Snow

Sensor

The Aerial Snow Sensor (A3040095)
is an aerial-mounted sensor that
detects falling snow and allows

an Uponor Single-zone Snow Melt

Control (A3040654) to automatically

start the snow melting equipment.

System stop is provided by the control’s

timer or by manual disable. The Aerial Snow

Sensor mounts to a nominal 1⁄2" (16mm) metal or

PVC conduit or pole.

Installation

Caution: Improper installation

and operation of this control
could result in damage to the
equipment and possibly even
personal injury or death. It is the
installer’s responsibility to ensure
that this control is safely installed
according to all applicable codes
and standards. Please follow these
step-by-step instructions to gain
a full understanding of this device.

1. Check the Contents

Check the contents of this package.
If any of the contents listed are
missing or damaged, contact
your wholesaler or Uponor sales
representative for assistance.

Package includes:

• One Aerial Snow Sensor (A3040095)

• One Installation Guide

2. Choosing a
Location for the Sensor

The sensor should be installed
outside on a nominal 1⁄2" (16 mm)
PVC or rigid metal conduit pole
either on a roof or to the side of
the snow melting surface. The
sensor must be located away from
trees, building overhangs or other
locations that may interfere with
falling snow. Avoid installing in
locations where the sensor may
be vandalized. It is best to point
the front face of the sensor in the
direction of any prevailing wind.

Roof Mounted

Conduit fastened to fascia board

Ground Mounted

Conduit run underground with a
pole above surface

Roof Mounted

Ensure water-proof installation
with flashing boot or similar
method

FPO

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www.uponorpro.com

3. Rough-in Wiring

Install a nominal 1⁄2" (16mm) PVC or
metal conduit from the Single-zone
Snow Melt Control to the chosen
sensor location. Pull 4-conductor
18-AWG wire from the sensor
location to the control location
through the conduit. The maximum
wire length between the sensor
and the control is 500' (150 m).

If using PVC conduit, do not run
the wires parallel to telephone or
power lines. If the sensor wires
are located in an area with strong
sources of electromagnetic noise,
use shielded cable or twisted pair.
If using shielded cable, one end of
the shield wire should be connected
to the Com terminal on the Single­zone Snow Melt Control and the
other end should remain free. The
shield must not be connected to
earth ground.

4. Disassembly

a. Remove the outer ring by pulling

up on the three catches.

b. Remove the three screws.

c. Remove the blue sensor disk

from the sensor enclosure.

Note: Avoid scratching any part of
the surface of the blue sensor disk.
Scratches will result in corrosion not
covered by warranty.

5. Painting the Sensor

The sensor enclosure is made of
an off-white plastic material that
is UV stable. The plastic enclosure
may be spray painted to match
the color of the building.

Note: Do not paint the blue sensor
disk as this will damage the sensor.

Outer Ring

Blue Sensor Disk

Sensor Enclosure

Conduit Adapter
(not included)

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Aerial Snow Sensor Installation Guide