tekmar 084 User Manual

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- Data Brochure

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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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Sensor Testing Instructions

A good quality test meter capable of measuring up to 5,000 k (1 k = 1000 ) is required to measure the sensor resistance. In addition to this, the actual temperature must be measured with either a good quality digital thermometer, or if a thermometer is not available, a second sensor can be placed alongside the one to be tested and the readings compared.

First measure the temperature using the thermometer and then measure the resistance of the sensor at the control. The wires from the sensor must not be connected to the control while the test is performed. Using the chart below, estimate the temperature measured by the sensor. The sensor and thermometer readings should be close. If the test meter reads a very high resistance, there may be a broken wire, a poor wiring connection or a defective sensor. If the resistance is very low, the wiring may be shorted, there may be moisture in the sensor or the sensor may be defective. To test for a defective sensor, measure the resistance directly at the sensor location with the wires disconnected.

Note: Do not apply voltage to a sensor at any time as damage to the sensor may result.

Temperature Re sistance

°F °C

-50 -46 490,813

-45 -43 405,710

-40 -40 336,606

-35 -37 280,279

-30 -34 234,196

-25 -32 196,358

-20 -29 165,180

-15 -26 139,402

-10 -23 118,018

-5 -21 100,221 0 -18 85,362 5 -15 72,918

10 -12 62,465 15 -9 53,658

Temperature Re sistance

°F °C

20 -7 46,218 25 -4 39,913 30 -1 34,558 35 2 29,996 40 4 26,099 45 7 22,763 50 10 19,900 55 13 17,436 60 16 15,311 65 18 13,474 70 21 11,883 75 24 10,501 80 27 9,299 85 29 8,250

Temperature Re sistance

°F °C

90 32 7,334

95 35 6,532 100 38 5,828 105 41 5,210 110 43 4,665 115 4 6 4 ,18 4 120 49 3,760 125 52 3,383 130 54 3,050 135 57 2,754 140 60 2,490 145 63 2,255 150 66 2,045 155 68 1,857

Temperature Re sistance

°F °C

160 71 1,689 165 74 1,538 170 77 1,403 175 79 1,281 180 82 1,172 185 85 1,073 190 88 983 195 91 903 200 93 829 205 96 763 210 99 703 215 102 648 220 104 598 225 107 553

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Technical Data

Indoor Sensor 084

Literature D 084 Packaged weight 0.11 lbs (50g) Enclosure White PC-ABS plastic Dimensions 1-7/16” O.D. x 1-1/8” D (36 O.D. x 28 mm) Approval CSA C US, CSA/UL 61010-1 Ambient Conditions Indoor use only, -60 to 140°F (-50 to 60°C), < 90% RH non-condensing Sensor Type NTC thermistor, 10 k

@ 77°F (25°C ± 0.2°C), ß = 3892

Limited Warranty and Product Return Procedure

Limited Warranty The liability of tekmar under this warranty is limited. The

Purchaser, by taking receipt of any tekmar product (“Product”), acknowledges the terms of the Limited Warranty in effect at the time of such Product sale and acknowledges that it has read and understands same.

The tekmar Limited Warranty to the Purchaser on the Products sold hereunder is a manufacturer’s pass-through warranty which the Purchaser is authorized to pass through to its customers. Under the Limited Warranty, each tekmar Product is warranted against defects in workmanship and materials if the Product is installed and used in compliance with tekmar’s instructions, ordinary wear and tear excepted. The pass-through warranty period is for a period of twentyfour (24) months from the production date if the Product is not installed during that period, or twelve (12) months from the documented date of installation if installed within twenty-four (24) months from the production date.

The liability of tekmar under the Limited Warranty shall be limited to, at tekmar’s sole discretion: the cost of parts and labor provided by tekmar to repair defects in materials and / or workmanship of the defective product; or to the exchange of the defective product for a warranty replacement product; or to the granting of credit limited to the original cost of the defective product, and such repair, exchange or credit shall be the sole remedy available from tekmar, and, without limiting the foregoing in any way, tekmar is not responsible, in contract, tort or strict product liability, for any other losses, costs, expenses, inconveniences, or damages, whether direct, indirect, special, secondary, incidental or consequential, arising from ownership or use of the product, or from defects in workmanship or materials, including any liability for fundamental breach of contract.

The pass-through Limited Warranty applies only to those defective Products returned to tekmar during the warranty period. This Limited Warranty does not cover the cost of the parts or labor to remove or transport the defective Product, or to reinstall the repaired or replacement Product, all such costs and expenses being subject to Purchaser’s agreement and warranty with its customers.

Any representations or warranties about the Products made by Purchaser to its customers which are different from or in excess of the tekmar Limited Warranty are

the Purchaser’s sole responsibility and obligation. Purchaser shall indemnify and hold tekmar harmless from and against any and all claims, liabilities and damages of any kind or nature which arise out of or are related to any such representations or warranties by Purchaser to its customers.

The pass-through Limited Warranty does not apply if the returned Product has been damaged by negligence by persons other than tekmar, accident, fire, Act of God, abuse or misuse; or has been damaged by modifications, alterations or attachments made subsequent to purchase which have not been authorized by tekmar; or if the Product was not installed in compliance with tekmar’s instructions and / or the local codes and ordinances; or if due to defective installation of the Product; or if the Product was not used in compliance with tekmar’s instructions.

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, WHICH THE GOVERNING LAW ALLOWS PARTIES TO CONTRACTUALLY EXCLUDE, INCLUDING, WITHOUT LIMITATION, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, DURABILITY OR DESCRIPTION OF THE PRODUCT, ITS NON-INFRINGEMENT OF ANY RELEVANT PATENTS OR TRADEMARKS, AND ITS COMPLIANCE WITH OR NON-VIOLATION OF ANY APPLICABLE ENVIRONMENTAL, HEALTH OR SAFETY LEGISLATION; THE TERM OF ANY OTHER WARRANTY NOT HEREBY CONTRACTUALLY EXCLUDED IS LIMITED SUCH THAT IT SHALL NOT EXTEND BEYOND TWENTY-FOUR (24) MONTHS FROM THE PRODUCTION DATE, TO THE EXTENT THAT SUCH LIMITATION IS ALLOWED BY THE GOVERNING LAW.

Product Warranty Return Procedure All Products that are believed to have defects in workmanship or materials must be returned, together with a written description of the defect, to the tekmar Representative assigned to the territory in which such Product is located. If tekmar receives an inquiry from someone other than a tekmar Representative, including an inquiry from Purchaser (if not a tekmar Representative) or Purchaser’s customers, regarding a potential warranty claim, tekmar’s sole obligation shall be to provide the address and other contact information regarding the appropriate Representative.

tekmar Control Systems Ltd., Canada

Control Systems

tekmar Control Systems, Inc., U.S.A.

Head Office: 5100 Silver Star Road Vernon, B.C. Canada V1B 3K4 (250) 545-7749 Fax. (250) 545-0650 Web Site: www.tekmarcontrols.com

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tekmar Control Systems Ltd. and tekmar Control Systems, Inc.

All specifications are subject to change without notice.

Printed in Canada. D 084 - 05/07.