tekmar 084 User Manual

- Data Brochure

•

Indoor Sensor 084

The tekmar Indoor Sensor 084 includes a 10 k thermistor mounted on a white thermoplastic disk to provide an accurate measurement of the indoor temperature. The 084 mounts flush or nearly flush to the wall to give an unobtrusive look to the sensor. Since the sensor material is corrosion resistant, drywall installers are able to mud over the sensor or the 084 can be painted to match the existing wall color. The 084 can be connected to a tekmar thermostat for remote temperature sensing.

Actual Size

D 084

05/07

Installation

CAUTION

Improper installation and operation of this sensor could result in damage to equipment and possibly even personal injury. It is your responsibility to ensure that this sensor is safely installed according to all applicable codes and standards. Please follow these step-bystep instructions to gain a full understanding of this device.

STEP ONE

GETTING READY

Check the Contents

Check the contents of this package. If any of the contents listed are missing or damaged, please refer to the Limited Warranty and Product Return Procedure on the back of this brochure and contact your wholesaler or tekmar sales representative for assistance.

Type 084 includes

STEP TWO

The Indoor Sensor should be installed on an interior wall of the desired zone to be controlled. Avoid installing the sensor in a wall if the adjacent zone is at a much different temperature. Do not mount the 084 in a location that may be affected by localized heat sources or cold drafts (in direct sunlight or near a supply air duct or window).

STEP THREE

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Before drywall is installed run two conductor 18 AWG wire from the tekmar thermostat to the desired location of the Indoor Sensor. The maximum wire length between a thermostat and sensor is 500’ (152.4 m).

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Do not run the wires parallel to telephone or power lines. If the Indoor Sensor wires are located in an area with strong sources of electromagnetic noise, shielded cable or twisted pair should be used or the wires can be run in a grounded metal conduit. If using shielded cable, one end of the shield wire should be connected to the Com terminals on the thermostat and the other end should remain free. The shield must not be connected to earth ground.

One Indoor Sensor 084 • One Data Brochure D 084.

CHOOSING A LOCATION FOR THE INDOOR SENSOR

ROUGH IN WIRING

1’ (.3 m) of

excess wire

5’

(1.5 m)

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Staple the wire to a wall stud 5’ (1.5 m) above the floor and coil 1’ (.3 m) of the wire to work with before cutting it off.

• Write down the exact location of the wire in the wall so it

can be found when the drywall is installed.

Record distance from corner.

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STEP FOUR

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PREPARING THE WALL

Once the drywall has been installed, locate the sensor wire behind the drywall using your notes from step three.

Near Flush Mount

Using a hole-saw, drill a 1” (25.5 mm) hole at the location of the sensor wire.

Pull the excess wire through the hole and now you are ready to wire your sensor.

Do not drill hole directly over stud.

True Flush Mount

Using a 1-1/2” (38.0 mm) spade bit, drill a recess hole lightly into the drywall to a depth no more than 1/8” (3.0 mm).

Turn the 084 Indoor Sensor around so that the front disk is facing the wall and test to see if this recess hole is deep enough to mount the sensor flush.

Once the recess hole is at the desired depth, use a 1” (25.5 mm) hole-saw and place the guide bit into the center hole created by the spade bit and drill through the drywall.

Pull the excess wire through the hole and now you are ready to wire your sensor.

1-1/2”

(38.0 mm)

1/8”

(3.0 mm)

1”

(25.5 mm)

1”

(25.5 mm)

Spade Bit

1-1/2”

(38.0 mm)

Hole Saw

1”

(25.5 mm)

STEP FIVE

Connect the two wires to the terminals in the back of the 084 sensor.

Once wired, feed the excess wire back into the hole and hand press the 084 until the back of the disk touches the wall. The sensor

WIRE & MOUNT THE INDOOR SENSOR

is held in place by the taper of the enclosure (no fasteners required).

Be careful not to press the sensor through the drywall.

STEP SIX

• The sensor can now be painted to match the wall color or wallpapered over.

• The sensor can also be mudded over and sanded during the drywall process, and then the wall can be painted or wallpapered

FINISH THE INDOOR SENSOR

as normal. Be careful not to sand the sensor plate.

• Keep a record of where the 084 is installed in case of failure the sensor can be found. Note: The mud area of a near flush mount will be much greater than the mud area of a true flush mount.

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