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12 | 028-0485-00 

 

 

 

 

 

          November 2017 

 

Wall mounted sensor  

 

 

Temperature vs. resistance chart for 10 Kohm Type II NTC thermistor  

(R

25°C 

= 10K

±3%, B

25/85°C

 = 3975K±1.5%)

 

 

 

ºC 

ºF 

Kohm 

 

ºC 

ºF 

Kohm 

 

ºC 

ºF 

Kohm 

 

ºC 

ºF 

Kohm 

 

ºC 

ºF 

Kohm 

-40  -40  324.3197    -20 

-4  94.5149   

0  32  32.1910    20  68  12.4601    40  104  5.3467 

-35  -31  234.4009    -15 

5  71.2430   

5  41  25.1119    25  77  10.0000    45  113  4.3881 

-30  -22  171.3474    -10  14  54.1988    10  50  19.7390    30  86  8.0694    50  122  3.6202 
-25  -13  126.6109   

-5  23  41.5956    15  59  15.6286    35  95  6.5499    55  131  3.0016 

 

Specifications 

Operating Conditions 

 

0°C to 50°C (32°F to 122°F) 

 

 

0% to 95% R.H. non-condensing

 

Sensor 

Local on board NTC Thermistor

 

Resolution 

± 0.1°C (± 0.2°F)

 

Control Accuracy 

± 0.2°C (± 0.4°F) calibrated 

 

Control Ranges 

-17°C to 82°C (0°F to 180°F)

 

Proportional band for room temperature 
control 

1.8°C (3.2°F)

 

Proportional band for supply temperature 
control

 

28°C (50°F)

 

Analog 0 to 10 Vdc output

 

 

0 to 10 Vdc into 2Kohm resistance min.  

 

5 mA max at 10 Vdc  

Vdc pulsed output

 

20 mA max at 8 Vdc

 

Power

 

24 Vac -15%, +10%  50/60 Hz; 2 Va

 

 

 
 

 

 

Viconics Technologies Inc.

 

Tel.:

Fax:

Toll free:

www.viconics.com

 

Содержание VT7225 series

Страница 1: ...to 10 Vdc output one 8 Vdc and one 24 Vac proportioning pulsed output The analog 0 to 10 Vdc modulating output can control the room or supply temperature by modulating directly a 0 to 10 Vdc SCR power controller The Vdc and Vac pulsed outputs can control the room or supply temperature by modulating directly 4 32 Vdc triggered solid state relays SSR s using a time proportioning control algorithm on...

Страница 2: ...2 028 0485 00 November 2017 CONTENTS Installation 3 Location 3 Installation 3 BI 1 5 UI 3 5 Terminal Identification and Function 5 Output Types 6 Wiring 7 Remote sensor accessories 11 ...

Страница 3: ...open Room Controller PCB to left by pressing PCB locking tabs fig 2 2 Pull out cables 6 out from the wall Ensure wall surface is flat and clean 3 Insert cable in central hole of base 4 Align base and mark location of two mounting holes on wall Install proper side of base up 5 Install anchors in wall 6 Insert screws in mounting holes on each side of base fig 2 7 Gently swing back circuit board on b...

Страница 4: ...ating controls only and are not safety devices These instruments have undergone rigorous tests and verification prior to shipping to ensure proper and reliable operation in the field Whenever a control failure could lead to personal injury and or loss of property it becomes the responsibility of the user installer electrical system designer to incorporate safety devices such as relays flow switch ...

Страница 5: ... Occupied Contact closed Unoccupied UI 3 Supply air sensor Used for supply air temperature control TERMINAL IDENTIFICATION AND FUNCTION Pin Number Pin Identification Description 4 24 V HOT Power 24 Vac 5 24 V COM Common 6 Do not use 7 AUX 24 Vac pulsed output 9 AO 2 0 to 10 Vdc analog output 10 AO 1 8 Vdc pulsed output 12 BI 1 Night setback input 13 RS Remote sensor 14 S COM Sensor common 16 UI 3 ...

Страница 6: ...485 00 November 2017 Output Types Type of Output Controlled Device Modulating analog 0 to 10 Vdc output SCR s power controls Vdc pulsed output 4 32 Vdc triggered SSR s Vac pulsed output 24 Vac triggered SSR s ...

Страница 7: ...ill force setpoint to Unocc HT adjustable inside setup parameters By adjusting to a low setpoint ex 0 F is a way to disable heating By adjusting to 180 F is a way to force maximum heating If parameter MenuScro On will display Unoccup when contact closed and Occupied when contact open 24V 0 to 10 Vdc 24V COM AUX AO 2 AO 1 BI 1 S COM UI3 24V HOT RS Return temperature control with 0 to 10Vdc SCR ...

Страница 8: ...2 AO 1 BI 1 S COM UI3 24V HOT RS 24V COM AUX AO 2 AO 1 BI 1 S COM UI3 24V HOT RS Wiring detail for 4x 4 32 Vdc SSR 24V SSR Up to 4x 4 32Vdc SSR see wiring detail Room temperature control with 4 32Vdc SSR 24V COM AUX AO 2 AO 1 BI 1 S COM UI3 24V HOT RS 24V COM AUX AO 2 AO 1 BI 1 S COM UI3 24V HOT RS Wiring detail for 4x 4 32 Vdc SSR ...

Страница 9: ...ber 2017 24V SSR Room remote temperature control with 4 32Vdc SSR 24V COM AUX AO 2 AO 1 BI 1 S COM UI3 24V HOT RS 1x 2x or 3x remote sensors for averaging room temperature reading see S3010W1000 manual for proper settings ...

Страница 10: ... SSR in parallel or add C24 adapter board to regular 3 32Vdc SSR Room temperature control with 24 Vac SSR Wiring details 24V COM AUX AO 2 AO 1 BI 1 UI3 24V HOT RS S COM 24V COM AUX AO 2 AO 1 BI 1 UI3 24V HOT RS S COM Up to 10x 24Vac SSR see wiring detail ...

Страница 11: ... Room sensor Remote room sensing 3 thermistors with 2 dip switches are provided with each sensor for various averaging combinations S2000D1000 Duct sensor with junction box Remote return air temperature sensing with the sensor mounted on the return air duct Outside air temperature sensing with the sensor installed in the fresh air plenum Supply air temperature sensor S1010D1000 Duct Mounted Change...

Страница 12: ... 6109 5 23 41 5956 15 59 15 6286 35 95 6 5499 55 131 3 0016 Specifications Operating Conditions 0 C to 50 C 32 F to 122 F 0 to 95 R H non condensing Sensor Local on board NTC Thermistor Resolution 0 1 C 0 2 F Control Accuracy 0 2 C 0 4 F calibrated Control Ranges 17 C to 82 C 0 F to 180 F Proportional band for room temperature control 1 8 C 3 2 F Proportional band for supply temperature control 28...

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