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BACnet Menu

Description

Range

Default

Access

DEVICE ID

Select the BACnet device number identification .

0 to 4194302

Installer

ADDRESS

Set the BACnet MS/TP MAC address .

0 to 127

Installer

BAUD RATE

Select the BACnet-MSTP data communication rate .

Higher data rates may restrict cable length and may

require terminating resistors at the end of the RS-485

data bus .

2400, 9600,

19k2, 38k4,

57k6, 76k8,

115k

76800

Installer

Sensors Menu

Description

Range

Default

Access

SNOW/ICE

Select if a Snow/Ice Sensor 090 “In-slab” or a

Snow Sensor 095 “Aerial” is installed .

In-Slab

Aerial

In-Slab

Installer

OUTDOOR

Current outdoor air temperature . Select if the outdoor

air temperature is measured by the outdoor local

sensor or provided by the BAS .

Local

BAS

Installer

SLAB

Current slab sensor temperature . The slab sensor is only

available when the Aerial Snow Sensor 095 is installed .

On, Off

Installer

Содержание tekmar 681

Страница 1: ...e BACnet Snow Ice Sensor Interface 681 WARNING Please read carefully before proceeding with installation Your failure to follow any attached instructions or operating parameters may lead to the product s failure Keep this Manual for future reference ...

Страница 2: ...tected True False with Snow Ice Sensor 090 15 Snow Detected True False with Snow Sensor 095 16 Snow Detected True False with Snow Sensor 095 and Slab Sensor 072 16 Slab Temperature 16 Outdoor Temperature 16 Multiple Zones 17 Warm Weather Shut Down 17 Cold Weather Cut Off 17 Slab Target 17 Troubleshooting Error Messages 18 19 Technical Data 19 Limited Warranty and Product Return Procedure 20 Congra...

Страница 3: ...d with a signal word DANGER WARNING or CAUTION a pictorial and or a safety message to identify hazards When you see this symbol alone or with a signal word on your equipment or in this manual be alert to the potential for death or serious personal injury This pictorial alerts you to electricity electrocution and shock hazards This symbol identifies hazards which if not avoided could result in deat...

Страница 4: ...kaging Contents Front View Side View 19 32 33 mm Mounting Base 611 32 161 mm 51 8 130 mm 1 46 37 mm Choose the placement of the 681 early in the construction process to enable proper wiring during rough in Installation Location NOTICE Keep the 681 dry Avoid potential leakage onto the 681 Maintain relative humidity less than 90 in a non condensing environment Avoid exposure to extreme temperatures ...

Страница 5: ...mounted on DIN rail back view Low Voltage Wiring Pull two conductor 18 AWG cable up to 500 feet 150 m long for the following equipment Outdoor temperature sensor Optional Pull four solid conductor 18 AWG cable up to 500 feet 150 m long for the following equipment Snow Sensor 095 Pull five solid conductor 18 AWG cable up to 435 feet 132 m long for the following equipment Snow Ice Sensor 090 Rough I...

Страница 6: ...AS is not providing an outdoor air sensor Connect the Outdoor Sensor 070 sold separately to terminals 6 and 7 If the BAS has an outdoor air sensor this data can be shared with the 681 through BACnet 681 Electrical Schematic Legend S1 tekmar Snow Ice Sensor 090 S2 tekmar Outdoor Sensor 070 Optional S3 tekmar Snow Sensor 095 S4 tekmar Slab Sensor 072 A B G BACnet MS TP Communication SD Card FAT 32 3...

Страница 7: ...ct the A terminal on the BAS network to the RS 485 A terminal 8 Connect the B terminal on the BAS network to the RS 485 B terminal 9 Connect the ground G on the BAS network to the RS 485 Ref terminal 10 Communication Wiring The 681 is shipped pre programmed with com mon settings The 681 has an Installer access level that allows full access to all settings and a User access level that restricts the...

Страница 8: ...8 Snow detected status Go to menu selection screen Snow detected symbol Home Screen BACnet status Snow Ice status Slab Temperature status Outdoor Temperature status User Interface ...

Страница 9: ... when the out door temperature is below the CWCO temperature setpoint The 681 communicates to the BAS to signal snow or ice is not detected due to cold temperature WWSD is shown when the out door and slab temperature are above the WWSD temperature setpoint During WWSD the snow will melt naturally due to warm temperatures The 681 communicates to the BAS to signal snow or ice is not detected due to ...

Страница 10: ...095 detects moisture The Snow Ice Sensor 090 or Snow Sensor 095 has detected moisture but this condition does not warrant snow melting to turn on The Snow Ice Sensor 090 temperature is above 120 F 49 C while the snow sensor heater is able to operate MELT PENDING WATER DETECTED SENSOR OVERHEATED ...

Страница 11: ...SYMBOL The 681 has a error message Press the warning symbol to determine the error code and information on how to take corrective action Refer to the Troubleshooting section for a list of error codes Error Screen ...

Страница 12: ... snow melting system is shut off during extremely cold weather Below this temperature the heat loss of the slab exceeds the capacity of the boiler or heating appliance 30 to 50 F Off 34 0 to 10 0 C 10 F 12 C Installer WARM WEATHER SHUT DOWN WWSD Select the temperature above which the snow melting system is shut off during warm weather This allows the snow or ice to melt off the slab naturally Auto...

Страница 13: ...cess level This determines which menus and items are available through the user interface User Installer User User Installer UNITS Select if temperature is displayed in F or C F C F User Installer INFORMATION Product information F C SD Card Uptime BAS Outdoor Time Slab Target Slab Temperature Snow Detect Pending Snow Detect in Reset Installer LOAD FACTORY DEFAULT Select Yes to reload the factory d...

Страница 14: ... of the RS 485 data bus 2400 9600 19k2 38k4 57k6 76k8 115k 76800 Installer Sensors Menu Description Range Default Access SNOW ICE Select if a Snow Ice Sensor 090 In slab or a Snow Sensor 095 Aerial is installed In Slab Aerial In Slab Installer OUTDOOR Current outdoor air temperature Select if the outdoor air temperature is measured by the outdoor local sensor or provided by the BAS Local BAS BAS I...

Страница 15: ...ch snow or ice may be pres ent When moisture is detected the 681 shows Snow Detected True in the Home Screen When the sensor is dry and the slab is up to tar get temperature the 681 will transition to Snow Detected False Snow Ice Sensor 090 Snow Detected True False Operation with the Snow Ice Sensor 090 Snow Detected True The 681 communi cates to the BAS to signal snow or ice is detected Snow Dete...

Страница 16: ...s that either a Snow Ice Sensor 090 or a Slab Sensor 072 is installed The Snow Ice Sensor contains a built in slab temperature sensor while the Aerial Snow Sensor 095 requires the Slab Sensor 072 The 681 continually monitors the sensors for the slab tem perature conditions This value is communicated to the BAS through BACnet MS TP to cycle the heat source and the mixing device to control the slab ...

Страница 17: ...erature exceeds the WWSD setting by 1 F 0 5 C and when the slab temperature exceeds 34 F 1 C The 681 exits WWSD when the outdoor air temperature falls 1 F 0 5 C below the WWSD setting or if the slab temperature falls below 34 F 1 C This allows the Melting Setpoint setting to be set higher than the WWSD This is useful when high slab temperatures are required to melt the snow or ice Maintaining the ...

Страница 18: ...n the BAS menu OUTDOOR SENSOR ERROR The Interface is unable to read the Outdoor Sensor 070 This error also occurs when the BAS sys tem has failed to communicate the outdoor temperature for more than 30 minutes The Interface assumes an outdoor temperature of 32 F 0 C Check the outdoor sensor wire according to the sensor installation manual It may be necessary to replace the outdoor sensor Once the ...

Страница 19: ...n the bundle configuration Optional tekmar type 070 Error Messages 2 of 2 continued Description SNOW SENSOR BROWN WIRE ERROR The Interface is unable to read the brown wire connected to sensor Check the sensor brown and black wires according to the sensor installation manual Once the error has been corrected the error message automatically clears SNOW ICE SENSOR ERROR The Interface is unable to pro...

Страница 20: ... 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 W...

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