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Airstream INTER 2V4SA User Manual

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INTER 2V4SA
Temperature Controller
User's manual
INTER
2V4SA
ALARMS
TEST MODE
OUTSIDE TEMP / OFFSET
ROOM TEMP / MIN / MAX
PROBE TEMP / MIN / MAX
RELATIVE HUMIDITY / MIN / MAX
SET POINT / TEMP RAMP
CURRENT RAMPING DAY
STAGE 1 MIN SPEED / RAMP
STAGE 1 BANDWITH / TIMER
STAGE 1 RH COMPENSATION
STAGE 1 MOTOR TYPE
STAGE 1 OVERRIDE MIN. SPEED
STAGE 2 MIN SPEED
STAGE 2 OFFSET / BANDWITH
STAGE 2 DE-ICING
STAGE 2 MOTOR TYPE
STAGE 3 - 6 DIFFERENTIAL
MIST OFFSET / DIFFERENTIAL
MIST TIMER
MIST RH COMPENSATION
HEATER 1 OFFSET / DIFFERENTIAL
HEATER 2 OFFSET / DIFFERENTIAL
%
°C / °F
SEC. / MIN.
LOCKED
OTHER FUNCTIONS
FUNCTIONS
VARIABLE STAGE 1
VARIABLE STAGE 2
STAGE 3
STAGE 4
STAGE 5
STAGE 6
MIST
HEATER 2
HEATER 1
RH COMPENSATION
TEMP RAMP
MIN SPEED RAMP
PROBE DEFECT
ALARM
ADJUSTMENTS

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Summary of Contents for Airstream INTER 2V4SA

  • Page 1 INTER 2V4SA Temperature Controller User’s manual INTER 2V4SA °C / °F SEC. / MIN. LOCKED ALARMS VARIABLE STAGE 1 TEST MODE VARIABLE STAGE 2 OUTSIDE TEMP / OFFSET STAGE 3 ROOM TEMP / MIN / MAX STAGE 4 PROBE TEMP / MIN / MAX STAGE 5 RELATIVE HUMIDITY / MIN / MAX STAGE 6...
  • Page 2 Every effort has been made to ensure that Model: INTER 2V4SA this manual is complete, accurate and up- to-date. The information contained in it is Serial number: however subject to change without notice due to further developments.

  • Page 3: Table Of Contents

    INTER 2V4SA TABLE OF CONTENTS 9.  MISTING  ........26 1.  PRECAUTIONS ......4 10.  HEATING STAGES ....... 28 2.  FEATURES ........4 10.1. Cascade Heating ......28 10.2. Zoned Heater ......29 3.  LOCATION OF THE CONTROLS ..6 10.3. Heater Settings ......30 3.1. Unit Display ........6 3.2. Internal Switches ......6 11. ...

  • Page 4: Precautions

    INTER 2V4SA 2.  Features 1.  Precautions The INTER 2V4SA is an electronic device WARNING: Read and save these in- used for environmental control in livestock structions! buildings. It allows the user to maintain a specified target temperature by controlling Safety may be jeopardized if the equipment is...
  • Page 5 Control of air inlet movement: If the INTER 2V4SA is used in combination with a PF-6 controller, the movement of the air inlets can be coordinated with the opera- tion of the fans using a potentiometer located on the panel drive.

  • Page 6: Location Of The Controls

    INTER 2V4SA 3.  Location of the Controls Main menu LED Display INTER 2V4SA Units °C / °F SEC. / MIN. LOCKED Status LEDs ALARMS VARIABLE STAGE 1 TEST MODE VARIABLE STAGE 2 OUTSIDE TEMP / OFFSET STAGE 3 Internal switches ROOM TEMP / MIN / MAX STAGE 4 PROBE TEMP / MIN / MAX STAGE 5...

  • Page 7: Controller Status Leds

    INTER 2V4SA 3.3.  Controller Status LEDS Meaning VARIABLE STAGE 1 Turns on when variable fan stage 1 fans is active. VARIABLE STAGE 2 Turns on when variable fan stage 2 fans is active. STAGES 3-6 Turns on when fan stage 3-6 is active. MIST Turns on when the mist stage is active.

  • Page 8: Installation

    INTER 2V4SA 4.  Installation Alarm Connection: There are two types of alarms on the market. One type activates when current is cut off 4.1.  Mounting Instructions at its input; the other type of alarm activates when current is supplied at its input. For an Open the latch and lift the cover.

  • Page 9: Temperature Probes

    INTER 2V4SA 4.4.  Temperature Probes Do not run probe cables next to other power cables. When crossing over other The controller is supplied with one tempera- cables, cross at 90°. ture probe connected to input #1. Up to three additional probes can be connected to the controller in order to obtain a more accurate III. ...

  • Page 10: Changing A Parameter

    INTER 2V4SA 5.  Changing a Parameter ST3 on 2 . 0 5.1.  Using the Display (iii) When the user presses on an adjustment Flashing Values: The display button to make an adjustment to differential, will flash in certain cases 78.0 the relative value reappears on the display. and not in others. The flash- ing indicates that the value 2 .

  • Page 11: Temperature Settings

    INTER 2V4SA 6.  Temperature Settings III.  Viewing  Minimum  /  Maximum  Temperatures 6.1.  Temperature Units Follow this procedure to see the lowest and highest room temperature values that have been recorded since the last reset. To select the desired measuring units used to display temperatures, set internal switch # 2 to the desired position: •...

  • Page 12: Temperature Set Point

    INTER 2V4SA 6.3.  Temperature Set Point • Press the down-arrow adjustment button once more. The minimum temperature of probe 1 flashes on the display, alternating The temperature set point is the target with the letters "Pr1 Lo". room temperature. It can be adjusted be- tween -40,0°C and 48,9°C (-40,0°F and 120,0°F).

  • Page 13: Temperature Ramp

    INTER 2V4SA 6.4.  Temperature Ramp I.  Specifying Ramp Steps Ramp steps can only be modified while the The user can define a temperature ramp to ramp is disabled (see "IV. Deactivating the adjust the set point automatically over a given Temperature Ramp" on page 14 to disable the period of time.
  • Page 14 INTER 2V4SA II.  Activating the Ramp IV.  Deactivating  the  Temperature  Ramp • If you have just finished specifying ramp steps, press the Other Functions button once • Select the SET POINT/TEMP RAMP menu again. The word OFF flashes on the display. and then press the Other Functions button to scroll down all ramp steps, until the word •...

  • Page 15: Fan Stages

    1 fans run at minimum speed according 7.1.  Principle of Operation to the minimum ventilation cycle. The INTER 2V4SA controls two stages of vari- • At Set Point: stage 1 fans stop operating ac- able-speed fans (stages1-2) and four optional cording to the minimum ventilation cycle and stages of constant-speed fans (stages 3-6).
  • Page 16 INTER 2V4SA If the room temp. falls: • At Set Point + Bandwidth 1 + Stage 2 Offset + Bandwidth 2 + Differential 3: stage • At Set Point + Bandwidth 1 + Stage 2 3 fans start running. Offset + Bandwidth 2 + Differential 3, 4 & 5: stage 6 fans return to a stop.

  • Page 17: Merging Fan Stages 1 & 2

    INTER 2V4SA 7.1.1.    Merging Fan Stages 1 & 2 fan Stages 1 & 2 both increase in speed to create a smooth progression and both reach The transition from Stage 1 to Stage 2 can their maximum speed at the end of Stage 2 create jumps in the volume of displaced air. Bandwidth.
  • Page 18 INTER 2V4SA Merge between Stages 1 and 2 (with negative Stage 2 Offset) Variable  Stage 1 speed 100% Stage1 Override Min speed Stage 1 Min speed Stage 2 Room T° Bandwidth S2 Offset Stage 1 Bandwidth Variable  Stage 2 speed 100% Stage 2 Min speed Stage 2 Room T° Bandwidth S2 Offset Stage 1 Bandwidth INTER 2V4SA, rev.02...

  • Page 19: Icing Of Stage 2 Fans

    INTER 2V4SA 7.1.2.  De-icing of Stage 2 Fans De-icing Timer De-icing Status Stage 2 fans can automatically be de-iced in cold weather conditions. When a de-icing cycle starts, Stage 1 fans are stopped then stage 2 fans start running at full speed for 2 seconds. Stage 2 fans then run at the minimum speed of stage 2 during the de-icing time.

  • Page 20: Fan Stage Settings

    INTER 2V4SA 7.2.  Fan Stage Settings III.  Adjusting Stage 1 Bandwidth  The bandwidth of stage 1 is the temperature Refer to previous section of this manual to interval over which variable fans of stage 1 in- get more information about the following crease or decrease in speed proportionally to parameters.
  • Page 21 INTER 2V4SA VI.  Adjusting Stages 3-6 Differentials Differentials tell the controller when to start stages 3-6. If the controller does not use a fix hysteresis to stop these stages, it then uses differential values to stop them when the remperature decreases (Refer to the "Fan Stage"...

  • Page 22: Minimum Ventilation Cycles

    INTER 2V4SA 8.  Minimum Ventilation  8.2.  Minimum Ventilation  Cycles Timer Settings The On and Off Times of the minimum ventila- 8.1.  Principle of Operation tion timer can be adjusted between 0 and 900 seconds, in increments of 15 seconds. Definition: Minimum ventilation cycles are activated when the room temperature is To run the fans continuously at minimum lower than the set point.

  • Page 23: Rh Compensation On The Min. Ventila- Tion Speed

    INTER 2V4SA 8.3.  RH Compensation on  I.  Viewing  the  Relative  Humidity  Level (%) the Min. Ventilation  Speed • Select the RELATIVE  HUMIDITY  MIN/ The minimum speed of stage 1 can automati- MAX  menu. The current relative humidity cally be adjusted as a function of relative hu- is displayed.

  • Page 24: Minimum Ventilation Speed Ramp

    INTER 2V4SA 8.4.  Minimum Ventilation  III.  Adjusting  the  Compensation  Speed Speed Ramp The controller can automatically adjust the This is the percentage of increase in minimum minimum ventilation speed of stage 1 fans speed for a relative humidity equal to the with time. The minimum ventilation curve is humidity set point + 10%.
  • Page 25 INTER 2V4SA I.  Specifying Ramp Steps Ramp steps can only be modified while the • If you have previously defined ramp steps, ramp is disabled (see section iv. to disable select the STAGE 1 MIN SPEED/RAMP menu the ramp). and then press the Other Functions button to scroll down all ramp steps, until the word •...

  • Page 26: Misting

    INTER 2V4SA 9.  Misting I.  Adjusting the Mist Differential The mist differential is the variation in room temperature between the moment mist units The last cooling stage can be used as a mist turn on and the moment they turn off. It stage. Set internal switch #9 to ON to acti- can be adjusted between 0,3°C and 10,0°C vate this stage.
  • Page 27 INTER 2V4SA • Use the adjustment buttons to set the On Time to the desired value (in minutes). • Press the Other Functions button The cur- rent Off Time for the mist cycle is displayed, alternating with the letters "t Off". • Use the adjustment buttons to set the Off Time to the desired value (in minutes).

  • Page 28: Heating Stages

    INTER 2V4SA 10.  Heating Stages 10.1.  Cascade Heating Set internal switches as follows to enable When cascade heating is used, the operation the proper number of heating stages (1 or of heating stages is based on the average room temperature (set internal switch #8 in 2 heating stages): "OFF"...

  • Page 29: Zoned Heater

    INTER 2V4SA 10.2.  Zoned Heater Zoned Heater Heating To configure your system for zoned heaters, Stage  set internal switch #8 to ON. Since the two Status heater outputs function independently, dif- ferent probes are assigned to each output: Probes 1 and 2 are assigned to Heater 1 and Probes 3 and 4 are assigned to Heater 2.

  • Page 30: Heater Settings

    INTER 2V4SA 10.3.  Heater Settings III.  Adjusting  the  Max.  T°  Differ- ence Between Zones When using zoned heating, a built-in protec- I.  Adjusting Heater Offsets tion will operate the fans according to the The heater offset can provide substantial zone 1 probes whenever the temperature energy savings if correctly adjusted accord- difference between zones is greater than this ing to the outside temperature.

  • Page 31: Alarms

    INTER 2V4SA 11.  Alarms 11.2.  Outside Temp. Com- pensation on Temp.  Alarms The controller sets off an alarm in the case of a power failure, a fault in the supply circuit In situations where the outdoor temperature or a high or low temperature. is high, the room temperature will rise as warm air enters the building through ven- tilation inlets.

  • Page 32: Alarm Settings

    INTER 2V4SA • Use the adjustment buttons to select de- sired option : Outside T° Compensation on High T° Alarms • Select "ALL" for temperature alarms to Room  T° sound when the average temperature of all probes exceeds the normal temperature range; Select "Ind" for temperature alarms to sound when the temperature of an individual probe exceeds the limits.

  • Page 33: Test Mode

    INTER 2V4SA 12.  Test Mode A test mode allows you to simulate tempera- ture changes and verify the performance of your controller. In test mode, the tempera- ture probe inputs are turned off, allowing to change the temperature used by the con- troller to operate the stages.

  • Page 34: Troubleshooting

    INTER 2V4SA 13.  Troubleshooting PROBLEM CAUSE SOLUTION The display doesn't work. The circuit breaker on the ser- Reset the circuit breaker. vice panel is off or tripped. The wiring is incorrect. Fix the wiring. The input fuse is open. Replace the fuse. The voltage selector switch is in Set the switch to the correct position.
  • Page 35 INTER 2V4SA PROBLEM CAUSE SOLUTION Stage 1 or 2 fans run The selected motor ramp is not Select an appropriate motor ramp. erratically. correct. The differential is too small. Adjust the differential to a higher value. The On Time or Off Time is too Adjust the On Time or Off Time to a short.

  • Page 36: Technical Specifications

    INTER 2V4SA 14.  Technical Specifications Supply:  115/230 VAC (-18%, +8%), 50/60Hz, L1 same phases as Stage 1 and 2, overload and overvoltage protection fuse F12-1A fast blow. Stage 1: Variable output, 115 VAC (1/2 HP) / 230 VAC (1,5 HP), Mot.10A, 50/60 Hz, fuse F1-15A slow blow. Stage 2: Variable output, 115 VAC (1/2 HP) / 230 VAC (1,5 HP), Mot.10A, 50/60 Hz, fuse F2-15A slow blow.

  • Page 37: Factory Settings

    INTER 2V4SA 15.  Factory Settings PARAMETER FACTORY  RANGE  SETTING OF VALUES Temperature Set Point 25,0°C (77,0°F) -40,0 to 48,9°C (-40,0 to 120,0°F) Outside T° Alarm Offset 1,0°C (1,8°F) 0,3 to 20,0°C (0,5 to 36,0°F) Stage 1 Minimum Speed 10 % to 100 % Time On 0 seconds 0 to 900 seconds in increments of 15 sec.

  • Page 38: Memory Card

    INTER 2V4SA 16.  Memory Card The memory card is used to create a backup copy of your controller’s configuration. The card is also useful to transfer the configura- tion of one controller to another controller of the same type. The switch at the bottom of the card is used Internal to lock or to unlock the card ( = locked,...
  • Page 39 INTER 2V4SA Memory Card Transfer Error: CAUSE SOLUTION The memory card is If you want to copy the controller's configuration on the write protected memory card, make sure the switch at the bottom of the card is at the unlocked position. The controller is write If you want to transfer the card's configuration in the control- protected ler, make sure internal switch #1 of the controller is at the OFF...
  • Page 40 REV.02 M 890-00505 rev.02...

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