Viconics T261 User Manual

T211 T261

THERMOSTAT WITH:

•

1 DAMPER MOTOR VOLTAGE OUTPUT 0 TO 10 Vdc

•

2 MORE OUTPUTS

•

POWER LIMIT INPUT

•

DAY-NIGHT MODE ( T261 ONLY )

TO OPEN THERMOSTAT COVER

•

Remove security screw on left side of thermostat cover.

•

Open up by pulling on the left side of thermostat.

THERMOSTAT INSTALLATION

A) Location:

1- Shouldn’t be installed on outside wall. 2- Must be installed away from any heat source. 3- Shouldn’t be affected by direct sun radiation. 4- Nothing must restrain vertical air circulation to the thermostat.

B) Installation:

1- Pull out cables 6” out of the wall. 2- Wall surface must be flat and clean. 3- Separate the thermostat and the base by pulling cover on the left side (same

as the security screw.) 4- Insert cable in the central hole of the base. 5- Align the base and mark the location of the two mounting holes on the

wall. 6- Install shields in the wall. 7- Insert screws in mounting holes on each side of the base.

DO NOT OVERTIGHTEN!

8- Open the cable protection 1 1/4 inch more or less. 9- Strip each wire 1/4 inch. 10- Insert each wire according to wiring diagram. 11- Reinstall the cover ( right side first ). 12- Install security screw.

SETPOINT ADJUSTMENT KNOB LIMITATION

Note: To limit the rotation of setpoint knob, adjust setpoint to desired value, then insert stoppers in appropriate holes.

Horizontal model:

S1,S10 = No limitation S3 à S8 = Setpoint limitations

Vertical model:

S7,S10 = No limitation S1 to S7, or S12: Setpoint limitations

REMOTE SENSOR

It is possible to use a remote sensor ( for duct or room application) by connecting it to pins no. 6 and 7. Inside sensor must be disconnected by removing jumper J4 inside the thermostat.

Characteristics of remote sensor 47 KΩ.

180.0 °F 82.2 °C 5.494 Kohm 0.553 Volts

170.0 °F 76.7 °C 6.585 Kohm 0.648 Volts

160.0 °F 71.1 °C 7.933 Kohm 0.761 Volts

150.0 °F 65.6 °C 9.610 Kohm 0.893 Volts

140.0 °F 60.0 °C 11.700 Kohm 1.047 Volts

130.0 °F 54.4 °C 14.342 Kohm 1.225 Volts

120.0 °F 48.9 °C 17.682 Kohm 1.429 Volts

110.0 °F 43.3 °C 21.940 Kohm 1.659 Volts

100.0 °F 37.8 °C 27.412 Kohm 1.914 Volts

90.0 °F 32.2 °C 34.483 Kohm 2.191 Volts

80.0 °F 26.7 °C 43.704 Kohm 2.486 Volts

70.0 °F 21.1 °C 55.834 Kohm 2.791 Volts

60.0 °F 15.6 °C 71.866 Kohm 3.096 Volts

50.0 °F 10.0 °C 93.340 Kohm 3.393 Volts

40.0 °F 4.4 °C 122.298 Kohm 3.673 Volts

30.0 °F -1.1 °C 161.670 Kohm 3.927 Volts

20.0 °F -6.7 °C 215.805 Kohm 4.150 Volts

10.0 °F -12.2 °C 291.100 Kohm 4.341 Volts

0.0 °F -17.8 °C 396.830 Kohm 4.499 Volts

DAY-NIGHT MODE

An external contact closing between terminals 6 and 8 activates night mode. A LED on the thermostat flashes continuously indicating night mode. By pressing the button on the thermostat, day mode is reactivated. The thermostat returns to night mode when pressing again the button, or automatically after a 4 hours delay.

Note: Terminals 6 and 8 can be connected together between thermostats.

POWER LIMIT INPUT

An external DC voltage applied between terminals no. 9 (+) et 6 (-), limits the power permitted to outputs 1 and 2 only when these outputs are programmed as heating. The following table gives the relationship between input voltage and the allowed power for each output.

DC VOLTAGE

AT TERMINALS

NO 6 AND 9

MAXIMUM

POWER

OUTPUT 1

MAXIMUM

POWER

OUTPUT 2

MAXIMUM

POWER

TOTAL 0 volt 100 % 100 % 100 % 1 volt 100 % 100 % 100 %

2 volts 100 % 100 % 100 % 3 volts 100 % 80 % 90 % 4 volts 100 % 54 % 77 % 5 volts 100 % 28 % 64 % 6 volts 98 % 0 % 49 % 7 volts 68 % 0 % 34 % 8 volts 40 % 0 % 20 % 9 volts 18 % 0 % 9 %

10 volts 0 % 0 % 0 %

Note: Terminals 6 and 9 can be connected together between thermostats.

0 TO 10 VOLTS OUTPUT

Output no 3 (terminal no. 10) produces a DC voltage 0 to 10 volts generally used for damper control. Minimum position of damper can be adjusted inside the thermostat from 0 to 50 %, using a small screwdriver. Minimum and maximum positions can be adjusted using the C263 programmer. Adjust LL parameter to desired minimum position and HL to maximum desired position. LL and HL are preprogrammed at 0 (0 volt) and 100% (10 volts) at the factory. Adjusting LL and HL does not affect the effective proportional band. Example: LL=20%, HL=80%, Pb=0.9 °C. damper will modulate from 20 to 80 % on a 0.9 °C proportional band.

DIMENSIONS

3.275"

( 83 mm )

OR FROM BACK

BASE

WIRING FROM TOP

SECURITY SCREW

VERTICAL

MODEL

2.8"

( 71 mm )

HORIZONTAL MODEL

COVER

VICONICS

( 114 mm )

2.8"

( 71 mm )

4.5"

1.275" 32 mm

135

180

4.5"

114 mm

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SPECIFICATIONS

Operating Conditions: 0 °C to 50 °C ( 32 °F to 122 °F )

0% to 95% R.H. non-condensing

Sensor: Local 47 K NTC thermistor

Resolution: ± 0.1 °C ( ± 0.2 °F )

Control accuracy:

( calibrated )

Ranges:

± 0.2 ° C ( ± 0.4 °F ) for low ranges ± 0.9 ° C ( ± 1.8 °F ) for high ranges

10 °C to 32 °C ( 50 °F to 90 °F )

-18 °C to 82 °C ( 0 °F to 180 °F )

Outputs: Isolated Triac: 30 Vac at ½ A max.

0 to 10 Vdc into 2KΩ resistance min. 0 / 5 Vdc at 20 mA max. for both outputs.

Power: 24 Vac -15%, +10% 50/60 Hz; 2 VA

ORDER CODE

T211 - AB - CD - EF ( without day-night mode )

T261 - AB - CD - EF ( with day-night mode )

A Output no. 1 ( controlled device ) Type

1 Relay, thermal relay, two position motor Isolated Triac

2 Normally open thermal valve Isolated Triac

3 Normally close thermal valve Isolated Triac

4 "SSR" with 24 Vac input Isolated Triac

5 "SSR" with 3-32 Vdc input Pulsed 0/5 Vdc

B Output no. 2 ( controlled device ) Type

1 Relay, thermal relay, two position motor Isolated Triac

2 Normally open thermal valve Isolated Triac

3 Normally close thermal valve Isolated Triac

4 "SSR" with 24 Vac input Isolated Triac

5 "SSR" with 3-32 Vdc input Pulsed 0/5 Vdc

C Output no. 1 and 2 control mode

1 Heating, reverse acting, ( RA )

2 Cooling, direct acting, ( DA )

3 Heating, RA ( no. 1 ) and cooling, DA ( no. 2 )

4 Cooling, DA ( no. 1 ) and heating, RA ( no. 2 )

D Main control sensor location

1 Room, inside thermostat, or ( duct return air**)

2 Duct supply air **

** Order with S60 or S70 sensor

∗ Standard

E Setpoint adjustment

1 User adjustable

2 Blind cover

F Scale

10 °C to 32 °C ∗ Standard

50 °F to 90 °F

-18 °C to 82 °C ∆

0 °F to 180 °F ∆

Example: T261 - 53 - 31 - 12 One "SSR" 3-32 Volts heating output and one normally close thermal valve cooling output. Main sensor located inside the room Adjustable setpoint. Scale 50 °F to 90 °F. The output no. 3 is a cooling signal for damper modulation.

∆ Note: These models have a vertical cover.

Note: Order remote sensors separately

WIRING

NOTE: WITH THE PROPER CODES, TERMINALS 5, 6, 8 AND 9 CAN BE

WIRED TOGETHER BETWEEN EACH THERMOSTAT IF POLARITY IS RESPECTED

∗ Standard

Power supply 24 Vac -15% +10%

50/60 HZ 2 VA

POWER SUPPLY 24 Vac.

24 VAC

COMMON

IMPORTANT: IF USING A COMMON TRANSFORMER

24VAC

RESPECT POLARITY (COMMON AND 24 VAC) BETWEEN EACH THERMOSTAT

Day night mode T261 only

DAY NIGHT MODE

INPUT

DAY / NIGHT

COMMON

CLOSE = NIGHT

SET BACK

1 CONTACT USED FOR ALL THERMOSTAT USING THE SAME TRANSFORMER

Output #1 code A= 1, 2, 3 & 4 Triacs Output #2 code B= 1, 2, 3 & 4 Triacs

OUTPUT #1 AND/OR #2 USING RELAY WITH ISOLATED TRANSFORMER

RELAY OR THERMAL

VALVE 24 VAC

24VAC

OUTPUT

CONTACT

AND / OR

USE TERMINALS 3 & 4 FOR OUTPUT #1 USE TERMINALS 1 & 2 FOR OUTPUT #2

Power limit input

Analog 0 to 10 Vdc

POWER LIMIT INPUT USING 0 TO 10 Vdc

0 TO 10 Vdc LIMIT INPUT

COMMON

0 TO 10 Vdc

ENERGY

MANAGEMENT

SYSTEM

Output #1 code A= 1, 2, 3 & 4 Triacs Output #2 code B= 1, 2, 3 & 4 Triacs

OUTPUT #1 AND/OR #2 USING SAME TRANSFORMER TO OUTPUT

OUTPUT

CONTACT

24 VAC

COMMON

AND / OR

24VAC

USE TERMINALS 3 & 4 FOR OUTPUT #1 USE TERMINALS 1 & 2 FOR OUTPUT #2

RELAY OR

THERMAL VALVE

24 VAC

Output #1 code A= 5 Pulsed 0/5 Vdc Output #2 code B= 5 Pulsed 0/5 Vdc

OUTPUT #1 AND/OR #2 USING PULSED 0/5 Vdc

AND / OR

0/5 V

COMMON

USE TERMINALS 4 & 6 FOR OUTPUT #1 USE TERMINALS 2 & 6 FOR OUTPUT #2

SOLID STATE

RELAY

3-32 VDC TRIGGER

LOAD

Output #3 Analog 0 to 10 Vdc

OUTPUT #3 USING 0 TO 10 Vdc

0 TO 10 Vdc

COMMON

0 TO 10 VDC

ELECTRONIC ACTUATOR, SCR, OR VOLTAGE RELAY

Remote main temperature control sensor

Room or return control code D= 1,

Supply control code D=2

REMOTE MAIN CONTROL SENSOR

COMMON

EXTERNAL SENSOR

NOTE: REMOVE INTERNAL J4 JUMPER

DUCT S60 OR S70

IMMERSION S90

VICONICS

ROOM S80

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