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Manuels Connexes pour Automated Production TC4-NVS/P
Sommaire des Matières pour Automated Production TC4-NVS/P
- Page 1 Natural Ventilation Controller TC4-NVS/P USER'S GUIDE REV. 00 M 890-00159 rev. 05...
- Page 2 STAGE 1 — CURTAINS ..............23 Operation ..................23 De-icing the Curtains ..............24 Parameter Settings ................ 25 STAGE 2 ..................... 27 Ventilation ..................27 Heating ................... 30 Mist ....................32 Recirculation .................. 34 ALARMS ..................... 36 TROUBLESHOOTING ................. 38 TECHNICAL SPECIFICATIONS ............41 TC4-NVS/P.rev.05...
- Page 3 FEATURES The TC4-NVS/P is an electronic device used for environmental control in livestock buildings. One stage of either constant-speed fans, heaters or mist units can be connected to the controller, as well as curtains for natural ventilation. The main features of the TC4-NVS/P are as follows: •...
- Page 4 TC4-NVS/P • When used with a computer communication module, the controller COMMUNICATES WITH A COMPUTER. This makes possible the centralization of information management and a more diversified control stategy. • The controller is compatible with all types of air inlet systems.
- Page 5 To avoid exposing the controller to harmful gases or excessive humidity, it is preferable to install it in a corridor. The room temperature where the controller is located MUST ALWAYS REMAIN BETWEEN 0° AND 40°C (32° AND 104°F). DO NOT SPRAY WATER ON THE CONTROLLER TC4-NVS/P.rev.05...
- Page 6 LOCATION OF CONTROLS Cover Internal Circuit TC4-NVS/P.rev.05...
- Page 7 TC4-NVS/P THREE DIGIT DISPLAY Displays temperatures and other parameters. CURTAIN OPENING PILOT LIGHT Turns on when the curtains are opening. CURTAIN CLOSING PILOT LIGHT Turns on when the curtains are closing. STAGE 2 PILOT LIGHT Turns on when the stage 2 fans, heaters or mist units are on.
- Page 8 TC4-NVS/P Internal Switches The internal switches are located on the inside of the fron cover and are defined in the following table: NOTE: When the controller is shipped from the factory, all the switches are set to OFF. TC4-NVS/P.rev.05...
- Page 9 (a) The range of values for curve temperatures is 35°F to 99.9°F (1.7°C to 37.7°C). (b) If the negative values option is activated, the range of values for the heater offset is -9.9°F to 20.0°F (-5.5°C to 11.1°C). TC4-NVS/P.rev.05...
- Page 10 NC terminal. ALL WIRING MUST BE DONE BY AN AUTHORIZED ELECTRICIAN AND MUST COMPLY WITH APPLICABLE CODES, LAWS AND REGULATIONS. BE SURE POWER IS OFF BEFORE DOING ANY WIRING TO AVOID ELECTRICAL SHOCKS AND EQUIPMENT WARNING DAMAGE. TC4-NVS/P.rev.05...
- Page 11 TC4-NVS/P STEP 3 - TEMPERATURE PROBES Extending the Probes Each probe can be extended up to 500 feet (150 m): Use a shielded cable of outside diameter between 0.245 and 0.260 in (6.22 and 6.60 mm) to ensure the cable entry is liquid tight (cable dimensions should not be under 18 AWG).
- Page 12 TC4-NVS/P To identify the faulty probe: Set the selection knob to ROOM TEMPERATURE. The room tem- perature is displayed. Press the push-button. If the probe connected to terminal # 1 is not faulty, "Pr 1" is displayed, alter- nating with the temperature mea- sured by the probe.
- Page 13 TC4-NVS/P STEP 5 - CONNECTING THE WINCH Follow the wiring diagram to make the connections. The curtain should open when the controller is in manual open and should close when the controller is in manual close. If the curtain moves in the wrong direction, switch the wires connected to the OPEN and CLOSE terminals.
- Page 14 TC4-NVS/P STEP 8 - CALIBRATION A calibrated controller will more accurately control the opening of the cur- tains. Calibration is automatically performed when internal switch # 7 is set to ON. The letters "CAL" are displayed during the calibration. The controller first closes the curtains completely and stores the position.
- Page 15 The parameter settings can be locked to prevent accidentally modifying them. When the settings are locked, only the temperature set point (as long as the temperature curve is deactivated) can be modified. Locking the parameters: Set internal switch # 1 to ON. TC4-NVS/P.rev.05...
- Page 16 TC4-NVS/P Unlocking the parameters: Set internal switch # 1 to OFF. FACTORY SETTING: When the controller is shipped from the factory, internal switch # 1 is set to OFF (unlocked parameters). MANUAL OPERATION When the selection knob is turned to MANUAL MODE, the curtains can be manually opened, closed or stopped.
- Page 17 When using a single set point, the controller operates according to the specified temperature as long as the tem- perature curve is deactivated. TC4-NVS/P.rev.05...
- Page 18 TC4-NVS/P The temperature set point and the points of the temperature curve can be ad- justed only if the temperature curve is deactivated. If the pilot light is turned on, the temperature curve is currently activated. Deactivating the Temperature Curve: Set the parameter selection knob to SET POINT / T°...
- Page 19 TC4-NVS/P ADJUSTING THE TEMPERATURE CURVE The user can define a temperature curve to adjust the set point automati- cally over a given time period. Temperature Days A curve is defined using six points. Each point specifies a day number and a set point for that day.
- Page 20 TC4-NVS/P Turn the adjustment knob counterclockwise one notch and leave it in this position. The word OFF appears flashing on the display and after 10 seconds, the temperature curve pilot light turns off indicating that the temperature curve is now deactivated.
- Page 21 TC4-NVS/P When the six points of the temperature curve have been specified, the tem- perature curve must be activated for the controller to begin to automatically adjust the target room temperature. Activating the temperature curve: Press the push-button once again.The word OFF appears flashing on the display.
- Page 22 The maximum curtain opening is attained at a temperature equal to the set point plus the differ- ential. In the example above, the openings calculated by the controller are as follows: TC4-NVS/P.rev.05...
- Page 23 TC4-NVS/P — at 77 F, the curtains are 15% open — at 80 F, the curtains are 41% open — at 81 F, the curtains are 55% open — at 82 F, the curtains are 71% open. DE-ICING THE CURTAINS...
- Page 24 TC4-NVS/P PARAMETER SETTINGS Viewing the Curtain Opening The curtain opening is displayed as a percentage from 0 % (completely closed) to 100 % (completely open). Turn the selection knob to OPENING. The current curtain opening is displayed. Adjusting the Curtain Differential The differential is the temperature interval within which the curtains open and close.
- Page 25 TC4-NVS/P Use the push-button to switch from one value to the other. Adjusting the De-Icing Cycle The de-icing cycle determines the frequency at which the controller de-ices the curtains. At least once during the de-icing cycle, the controller opens the curtains to their de-icing opening The de-icing cycle varies from 1 to 120 minutes.
- Page 26 1. To run the fans continously at minimum speed, set time off to zero and time on to any value other than zero. 2. To stop the fans, set time on to zero and time off to any value. TC4-NVS/P.rev.05...
- Page 27 TC4-NVS/P 3. To run the fans intermittently, set time on to the desired running time and time off to the desired off time. PRINCIPLE OF OPERATION The differential is the temperature interval which determines when the fans turn on and off in continuous mode. The Stage 2 offset is the number of degrees above the set point at which Stage 2 fans stop operating continu- ously.
- Page 28 TC4-NVS/P VENTILATION SETTINGS Adjusting the Cooling Offset The cooling offset ranges from 0 to 20.0 F ( 0 to 11.1 Turn the selection knob to OFFSET — STAGE 2. The current offset flashes on the display. Use the adjustment knob to set the offset to the desired value.
- Page 29 TC4-NVS/P 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 2. HEATING 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5...
- Page 30 TC4-NVS/P HEATER SETTINGS Adjusting the Heater Offset The heater offset ranges from 0 to 20.0 F (0 to 11.1 Turn the selection knob to OFFSET — STAGE 2. The current offset flashes on the display. Use the adjustment knob to set the offset to the desired value.
- Page 31 TC4-NVS/P 3. MIST 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5...
- Page 32 TC4-NVS/P Mist Operation Mist Mist units start operating according to the Mist units mist timer stop operating Timer Offset Differential Temperature Set Point = 75 Adjusting the Mist Differential The mist differential ranges from 0.5 F to 20.0 F (0.3 to 11.1 Turn the selection knob to DIFFERENTIAL —...
- Page 33 TC4-NVS/P time on is displayed, alternating with the word "On". Use the adjustment knob to set time on to the desired value. Press the push-button. The current time off is displayed, alternating with the word "OFF". Use the adjustment knob to set time off to the desired value.
- Page 34 TC4-NVS/P When the temperature difference between the two probes is 4 F, the fans start running and operate according to the timer settings. When the differ- ence decreases to 3.5 F, the fans stop running. Operation of the Recirculation Fans...
- Page 35 TC4-NVS/P Adjusting the Timer Settings Time on and time off range from 0 to 900 seconds, in increments of 15 seconds. Turn the selection knob to TIMER — STAGE 2. The current time on is displayed, alternating with the word "On".
- Page 36 In case of a low temperature alarm: if the temperature reaches the low temperature limit, the curtain is closed according to the timer cycle until it is completely closed (0%). Temperature ALARM High Offset Set Point = 75 L o w offset ALARM Time TC4-NVS/P.rev.05...
- Page 37 TC4-NVS/P ALARM OFFSET SETTINGS Turn the selection knob to ALARM OFFSETS. The low offset is displayed, alternating with the word "LO". Use the adjustment knob to set the low offset to the desired value. Press the push-button. The high offset is displayed, alternating with the word "HI".
- Page 38 There is electrical noise near the cable of an extended probe. Do not run probe cables next to other power cables. When crossing over other power cables, cross at 90°. TC4-NVS/P.rev.05...
- Page 39 TC4-NVS/P CHECK POINTS PROBLEM The curtains do The stage 1 fuse is blown. not work. Replace the fuse. The curtains run The curtain parameter settings are not correct. in manual mode Correct the parameter settings. but not in auto- Stage 1 — Curtains.
- Page 40 TC4-NVS/P PROBLEM CHECK POINTS The Stage 2 fans The fan motor or heating unit is defective. or heaters do not Connect the fan motor or heating unit to an work (continued). alternate power supply. Replace the fan motor or heating unit if it still is not operating.
- Page 41 -40.0° to 120.0°F(-40.0° to 49°C). Accuracy: 1.8 F (1°C) between 41 and 95 (5° and 35°C). Enclosure: ABS, moisture and dust-tight. The temperature where the controller is installed MUST AT ALL TIMES REMAIN BETWEEN 32 AND 104 F (0 AND 40 TC4-NVS/P.rev.05...
- Page 42 NOTES...