12/24 VDC Natural Ventilation Control user manual
Contents
1. Except to the extent prohibited by applicable law no other warranties whether expressed or implied including warranties of merchantability and fitness for a particular purpose shall apply to the NVC Any implied warranties are excluded Phason is not liable for consequential damages caused by the NVC Phason does not assume or authorize any representatives or other people to assume any obligations or liabilities other than those specifically stated in this warranty Phason reserves the right to improve or alter the NVC without notice Phason Inc 2 Terracon Place Winnipeg Manitoba Canada Phone 204 233 1400 E mail Support phason ca R2J 4G7 Fax 204 233 3252 Web site www phason ca 24 2014 04 102. To program the Heat set point Default 75 0 F range 13 to 124 F 25 to 51 1 C 1 Press Up or Down until the display shows HERE 2 Press Select The current setting in degrees displays and the Heat set point LED flashes 3 Press Up or Down to adjust the setting and then press Select IZ oe The change is saved and the display shows HERE 4 Press Down to move to the High alarm or Back to cancel and return to the main display How hysteresis works Example for heaters Hysteresis is the number of degrees above the set point Set point that a heating stage or relay switches off hysteresis 70 F Heater OFF For example a household thermostat might switch on a Hysteresis 3 F i i a acini i furnace at 67 F when the house is cooling down but SPONE _ switch it off at 70 F when the house is warming up The PBLPOML GL difference between these two values is the hysteresis h a To program the Hysteresis Default 2 0 F range 0 5 to 5 F 0 3 to 2 8 C 1 Press Up or Down until the display shows HYSE 2 Press Select The current setting in degrees displays and the Hysteresis LED flashes 3 Press Up or Down to adjust the setting and then press Select The change is saved and the display shows HYUSE 4 Press Down to move to Units or Back to cancel and return to the main display 12 2014 04 10 Phason Natural Ventilation Control Alarm settings and conditions When there is an al
3. 3 Press Up or Down to adjust the setting and then press Select The change is saved and the display shows Lan 4 Press Down to move to the Close off duration or Back to cancel and return to the main display To program the Close off duration Default 120 seconds range 1 to 900 up to 15 minutes 1 Press Up or Down until the display shows LaF F 2 Press Select The current setting in seconds displays and the Off duration LED flashes 3 Press Up or Down to adjust the setting and then press Select The change is saved and the display shows LaF F 4 Press Down to move to the Idle band or Back to cancel and return to the main display To program the Idle band Default 2 0 F range 1 0 to 10 0 F 0 6 to 5 5 C 1 Press Up or Down until the display shows bAnd 2 Press Select The current setting in degrees displays and the Idle band LED flashes 3 Press Up or Down to adjust the setting and then press Select The change is saved and the display shows bF 4 Press Down to move to the Heat set point or Back to cancel and return to the main display 33440000 11 Natural Ventilation Control Phason How the heater settings work When the temperature is below the Heat set point the NVC switches the heater on When the temperature is above the Heat set point plus the Hysteresis the NVC switches the heater off For more information about hysteresis and how it affects operation read How hysteresis works below
4. Press Up or Down to until the display shows E5 6 Press Select to restore the factory defaults The control resets displays the version for a few seconds and then displays the temperature To restore the factory defaults using the POWER OFF method 1 Switch off the power to the control 2 Switch on the power to the control while holding the Up and Down buttons Keep holding the buttons until dE F displays 3 Release the buttons The control resets displays the version for a few seconds and then displays the temperature 18 2014 04 10 Phason Natural Ventilation Control Displaying the firmware version Firmware is the internal programming instructions of the NVC It is much like an operating system or software on a computer Just like an operating system the firmware has a version If you call technical support the support agent might ask you for the firmware version To display the firmware version 1 Press Up or Down until the display shows HEr 2 Press Select The display shows d 5P 3 Press Select The display shows the firmware version and the Version LED flashes 4 Press Back twice to return to the main display Updating the firmware At Phason we constantly improve and add new features to our products You can the firmware in your NVC as these improvements become available all you need is a USB memory stick and a firmware update file You can update the firmware using one of two methods the po
5. Up ot Down until the display shows Gur d 4 Press Select The display shows an on 5 Press Up or Down to switch between an and aF F off 6 Press Select The control returns to the main menu and the display shows Lurt 7 Press Up or Down to select a different menu item or press Back to return the main display 33440000 17 Natural Ventilation Control Phason Restoring the factory default settings Setting Default Range options Set point 70 0 13 to 125 F 25 to 51 7 C Open ON duration 20 1 to 900 seconds Open OFF duration 180 1 to 900 seconds Close ON duration 30 1 to 900 seconds Close OFF duration 120 1 to 900 seconds Idle band 2 0 1 0 to 10 0 F 0 6 to 5 5 C Heat set point 75 0 13 to 125 F 25 to 51 7 C Low alarm 90 0 13 F 25 C to High alarm High alarm 95 0 Low alarm to 125 F 51 7 C Hysteresis 2 0 0 5 to 5 F 0 3 to 2 8 C Units i F C sensor Off Off On You can restore the default settings using one of two methods the power on method or the power off method The power on method is the easiest way to restore the factory defaults If for some reason the power on method does not work use the power off method To restore the factory defaults using the POWER ON method 1 Press Up or Down until the display shows EE SE 2 Press Select The display shows t nF 3 Press Up or Down until the display shows FATE 4 Press Select The Test LED flashes and the display shows na 5
6. control relays Power contactors are ideal for electric heaters e Power contactor relay model PC 240 includes power contactor relay and mounting hardware for easy mounting in an enclosure 129 0 7 Power Power contactor kit model 122 1 includes power Contactor Unit contactor relay on off auto switch and label snubber filter reduces electrical noise and mounting hardware for easy mounting in an enclosure e Power contactor unit model 129 0 includes two power contactor relays two on off auto switches and two snubber filters mounted in a large enclosure The enclosure has room for two additional contactor relays or kits Temperature probes and extension cable Temperature probes monitor temperatures ranging from 49 to 122 F 45 to 50 C The probes are available in 1 6 30 75 or 150 foot cable Pas Mea S lengths and can extended up to 500 feet using extension cable Extension cable is available in 500 foot lengths Features e Easy installation Rugged and durable design Weather and UV resistant cable Limited warranty 90 days 22 2014 04 10 Phason Natural Ventilation Control Parts and kits If the display fails you can replace it with a display kit After replacing the display you will need to program the control If the bottom circuit board fails you can replace it with a control kit Model NVC 2 12 e Display kit model K331003 Control kit model KNVC12 CONTROL M
7. flashes between the alarm message and the current temperature For more information about alarms read Alarm settings and conditions on page 13 When the control is in manual override mode For the curtain the Open and Close LEDs will blink three times and then stay off for one second For the heater if the heater is ON the Heat LED will blink three times and then stay ON for one second if the heater is OFF the LED will blink three times and then stay OFF for one second For more information read Using manual override mode on page 16 33440000 3 Natural Ventilation Control Phason Main menu When you are in the main menu the display shows the menu items the LEDs light up to show you which menu item is selected Press Up or Down to move through the menu items Menu item Display Function Open pigs select automatic or manual override open close or idle Heat select automatic or manual override on or off Alarm Switch the alarm relay on or off Adjust the test temperature Test Restore the factory defaults Display the firmware version Version Update the firmware version Set point z Adjust the curtain set point Open on duration it Adjust the curtain open duration Open off duration tf Adjust the open idle duration Close on duration Adjust the close duration Close off duration Adjust the close idle duration Idle band Adjust the Idle band Heat set point Adjust the heater
8. resistive load 1 2 HP at 120 VAC 1 HP at 230 VAC Alarm relay 0 4 A at 125 VAC 2 A at 30 VDC resistive load 0 2 A at 125 VAC 1 A at 30 VDC inductive load If you are connecting any equipment that exceeds the ratings of the relays you must install power contactors For more information read Power contactors on page 22 2014 04 10 Phason Natural Ventilation Control Becoming familiar with the NVC Status LEDs Alarm LED Show the status of the relays Shows when there is an alarm condition of Show which relay is being oo O test LED Close TestO l controlled O Heat Version O Shows when test mode is active Version LED Shows the firmware version Alarm O Set point High alarm O O On duration Low alarm O Programming LEDs oe Off duration Hysteresis O Programming LEDs oe Show which setting is being O Idle band Units O Show which setting is being displayed or programmed O Heat set point rO displayed or programmed e HHA ss Scroll down Select an option Decrease a value Accept a value Up Back Scroll up Go back Increase a value Cancel changes Main display The main display shows the temperature and any alarm messages The main display is what you see when you are not in a menu or settings display Here are some things to know about the main display When a relay is on the status LED for that relay is lit When there is an alarm condition the display
9. set point High alarm Adjust the high alarm temperature Low alarm Adjust the low alarm temperature Hysteresis Adjust the hysteresis for the heater Units Change between Fahrenheit and Celsius sensor Enable the optional rain sensor Installing the NVC gt Read and follow all instructions when installing the NVC and connecting equipment to it Read Electrical ratings on page 2 Do not exceed the electrical ratings of the control 4 2014 04 10 Phason Natural Ventilation Control NVC layout 7 D ji CLOSE e CC CA OA ALARM Open and close relay terminals connect a curtain machine to these terminals For more information read Connecting a curtain machine on page Heater relay terminal connect a heater or furnace to this terminal For more information read Connecting a gas fired furnace or electric heater on page 6 DC power terminal connect the battery cable to this terminal The terminal label will be 12 or 24 VDC depending on the model For more information read Connecting the power source on page 8 Temperature probe terminal connect the temperature probe to this terminal For more information read Connecting on page 7 Display connector make sure the ribbon cable from the display is properly connected Alarm relay terminal connect an external alarm system or siren to this terminal For more information read Connecting an alarm system on pa
10. ventilation cooling increase heating gt D j The low temperature alarm setting is lt Decrease the low temperature alarm setting too high For more information read To program the Low temperature alarm Low alarm on page 14 amp The temperature probe is damaged lt Check the wire between the control and the l missing or the connecting wire is probe Wire damage can cause the alarm D j broken The temperature probe Replace or reconnect the temperature probe i circuit is open The control should recover automatically Probe damage alarm lt The temperature probe is damaged lt Check the wire between the control and the p yo The temperature probe circuit is probe Wire damage can cause the alarm closed Replace the temperature probe The control should recover automatically Probe short alarm 33440000 13 Natural Ventilation Control Phason To program the High alarm Default 95 0 F range Low alarm to 125 F 51 7 C or OFF 1 Press Up or Down until the display shows Hi AL 2 Press Select The current setting in degrees displays and the High alarm LED flashes 3 Press Up or Down to adjust the setting and then press Select The change is saved and the display shows Hi AL 4 Press Down to move to the Low alarm or Back to cancel and return to the main display To program the Low alarm Default 50 0 F range 13 F 25 C to High alarm or OFF 1 Press Up or Down until t
11. Phason Natural Ventilation Control 12 24 V The Natural Ventilation Control NVC is a fully programmable controller that provides extensive flexibility for your curtain or awning control needs The NVC automatically controls the temperature in a room by operating a curtain machine and heater according to your programmed settings Model NVC 2 12 is 12 VDC powered model NVC 2 24 is 24 VDC powered Controlling a curtain machine When the temperature is within the Idle band of the Set point the NVC maintains the curtain position When the temperature rises above the Idle band the NVC opens the curtain for the On duration and then pauses for the Off Alarm o0 duration cam Pa P Heat l Tm l Version After each Off duration the NVC checks the temperature and j i Set point High alarm then either opens or closes the curtain for the preset duration ondion Yow alarm i Off duration Hysteresis depending on the temperature dle band Units Heat set point Sensor ajajaja When the temperature is below the Heat set point the NVC Natural Ventilation Control switches the heater on Controlling a heater When the temperature is above the Heat set point the NVC switches the heater off Quick reference Accessories and kits Features Open duration Alarm connection Firmware version Open off idle duration Alarm settings overview Heater connection l Power c
12. arm condition the alarm relay activates and the Alarm LED flashes The display alternates between the ambient temperature and the alarm message When the condition goes away the alarm relay deactivates and the Alarm LED switches off The display continues to alternate between the temperature and alarm message until you acknowledge the alarm To acknowledge an alarm press Select There are four alarm conditions High temperature is when the temperature is above the high temperature alarm setting You can adjust the high temperature alarm from the Low alarm value to 125 F 51 7 C Low temperature is when the temperature is below the low temperature alarm setting You can adjust the low temperature alarm from 13 F 25 C to the High alarm value Probe short is when the temperature probe is shorted the temperature circuit is closed Probe damage is when the temperature probe is missing or broken the temperature circuit is open When there is a probe damage or probe short condition the control switches all relays off Alarm messages Message and description Possible cause Possible solution The ambient temperature is too high lt Increase ventilation cooling vs D l D The high temperature alarm setting is lt Increase the high temperature alarm setting too low For more information read To program the High temperature alarm High alarm on page 14 The ambient temperature is too low lt Decrease
13. display shows Gur d Press Up or Down until Gur d override displays 4 Press Select The display shows dL E idle 5 Press Down to switch between idle stop and aF En open or press Up to switch between idle and cL a5 close Each time you press the button the curtain starts or stops moving 6 Press Select The control returns to the main menu and the display shows Curt 7 Press Up or Down to select a different menu item or press Back to return the main display 16 2014 04 10 Phason Natural Ventilation Control There is a three second delay when switching between Open and Close This is to allow the motor to stop before switching directions The NVC remains in override mode until you exit it does not timeout or exit automatically To exit manual mode 1 Press Up or Down until the display shows the item you want E ur k for curtain or HEAE for heater 2 Press Select The relay LED s blink rapidly and the display shows Gur d 3 Press Up or Down until the display shows Auta 4 Press Select The display shows L ur E ot HEAE depending which item you chose in step 1 5 Press Up or Down to select a different menu item or press Back to return the main display To override the heater 1 Press Up or Down until the display shows HEAL 2 Press Select The Heat LED blinks rapidly If you are in automatic mode the display shows Aut o If you are in override mode the display shows Dur d Press
14. e 5 When finished press Back to return the control to automatic mode Press Back again to return to the main display 33440000 15 Natural Ventilation Control Phason Testing the alarm You can manually switch the alarm relay on and off so that you can test your alarm system To test the alarm 1 Press Up or Down until the display shows AL Ar 2 Press Select The display shows aF F off and the Alarm LED flashes 3 Press Up or Down to change the relay state 4 When finished press Back to return to the main menu Press Back again to return to the main display Using manual override mode Manual override mode allows you to override the automatic settings and manually control the curtain and or heater You can open close or pause the curtain and switch the heater on or off Manual mode ts also useful for testing equipment When the main display is showing and the curtain or heater is in override mode For the curtain the Open and Close LEDs will blink three times and then stay off for one second For the heater if the heater is ON the Heat LED will blink three times and then stay ON for one second if the heater is OFF the LED will blink three times and then stay OFF for one second To override the curtain 1 Press Up or Down until the display shows Turk 2 Press Select The Open and Close LEDs blink rapidly If you are in automatic mode the display shows Auta If you are in override mode the
15. ection The temperature probe is damaged Replace the probe The curtain opens when it The wiring is incorrect the close and lt Correct the wiring For more information read should close or closes when it open wires are reversed Connecting a curtain machine on page 6 should open The alarm relay is not operating The alarm wiring is incorrect Correct the wiring For more information read the alarm system Connecting an alarm system on page 7 Optional accessories and kits Phason Rain Sensor The Phason Rain Sensor model PRS connects to the NVC and allows it to close the curtain when rainfall is detected When the sensor detects rain it sends a signal to the NVC When the NVC recetves the signal it completely closes the curtain bypassing the on and off durations After 15 minutes with no rain the control returns to normal operation 33440000 21 Natural Ventilation Control Phason The advanced optical sensor uses infrared light to detect water hitting its surface This method of detection is more sensitive and reliable than other methods is nearly immune to false detection and is not affected by movement and most environmental conditions The Phason Rain Sensor s durable and rugged enclosure is completely sealed so there are no electronics to corrode and no openings for debris to collect Power contactors Phason s 240 volt power contactors are heavy duty relays that increase the load handling capability of
16. ge 7 Input terminal connect an optional Rain Sensor to this terminal For more information read Phason Rain Sensor on page 21 USB connection connect a USB memory stick to this connector to update the firmware For more information read Updating the firmware on page 19 le le E lel fed b lel e E 33440000 5 Natural Ventilation Control Phason Mounting the NVC Select a location for the NVC Make sure you have enough cable and wire to reach the equipment you want to control Remove the screws from the front cover and then gently lift it off Mount the enclosure to a wall using the four screws provided with the control Insert the screws into the large holes in each corner of the box and then tighten Connecting a curtain machine had had Curtains are usually controlled by equipment called OPEN CLOSE curtain machines which are sometimes referred to as winches POWER The NVC opens and closes the curtain to let in more SUPPLY air or less air the idea being more air cools the building CLOSE Connecting a gas fired furnace or electric heater Connect the heater as shown in the following diagram that matches your application Gas fired furnace Electric heater HEAT Thermostat Inputs Ea co lic L NEUTRAL L NEUTRAL i Junction DOX Gas furnaces using hot surface ignition or a glow plug can draw more current than indicated on their na
17. he display shows LoAL 2 Press Select The current setting in degrees displays and the Low alarm LED flashes 3 Press Up or Down to adjust the setting and then press Select The change is saved and the display shows LoAL 4 Press Down to move to the Hysteresis or Back to cancel and return to the main display Changing the temperature units The NVC can display temperatures in Fahrenheit or Celsius The default is Fahrenheit To change the Units 1 Press Up or Down until the display shows Lins E 2 Press Select The current setting CF or C displays and the Units LED flashes 3 Press Up or Down to adjust the setting and then press Select The change is saved and the display shows Lins E 4 Press Down to move to Sensor or Back to cancel and return to the main display Enabling the optional rain sensor With the optional Phason Rain Sensor installed the NVC automatically the curtain when rainfall is detected When the sensor detects rain it sends a signal to the NVC When the NVC receives the sional it completely closes the curtain bypassing the on and off durations After 15 minutes with no new rainfall the NVC returns to normal operation For more information read Phason Rain Sensor on page 21 hhh 7 E Phason Natural Ventilation Control If you are installing a Phason Rain Sensor you must enable the sensor input By default the input is not enabled To enable the sensor 1 Press Up or Down until the d
18. hing press Select to acknowledge the alarm For a list of alarm messages and error codes read Alarm messages on page 13 4 Test the equipment For more information read Testing and maintaining the NVC on page 15 Fasten the cover to the base 2014 04 10 Phason Natural Ventilation Control Programming the NVC Before you begin programming the NVC make sure the control has power and you have properly connected all equipment to the correct terminals How the curtain settings work There are six curtain settings Set point the temperature at which the curtain holds its position Idle band the buffer around the set point within which the curtain holds its position Open on duration the duration the curtain opens during the open cycle Close on duration the duration the curtain closes during the close cycle Open off duration the duration the curtain holds its position during the open cycle 6M Close off duration the duration the curtain holds its position during the close cycle Curtains hold their position while the temperature is within the Idle band of the Set point For example if the Set point is 80 F and the Idle band is 4 F 2 the curtain holds its position when the temperature is between 78 F and 82 F If the temperature rises above the Idle band above 82 F in our example the curtain opens for the Open on duration After opening the curtain holds its position fo
19. isplay shows 5En5 and the Sensor LED is lit 2 Press Select The current setting on or off displays and the Sensor LED flashes 3 Press Up or Down to adjust the setting and then press Select The change is saved and the display shows 5En5 4 Press Back to return to the main display Testing and maintaining the NVC Using temperature test mode Temperature test mode allows you to test your equipment and settings by simulating the temperature In temperature test mode you adjust the test temperature As you increase or decrease the test temperature the relays operate according to their settings and the test temperature This gives you an idea of how your system performs over a full range of temperatures The relays remain operating according to the test temperature until you exit test mode lt When the NVC is in temperature test mode it operates the equipment according to the test temperature not according to the measured temperature The NVC does not exit test mode automatically When you are finished testing press Back or Select to exit test mode To use temperature test mode 1 Press Up or Down until the display shows EE SE 2 Press Select The display shows t nF 3 Press Select The Test LED flashes and the display shows the test temperature The NVC is now in temperature test mode 4 Press Up or Down to adjust the test temperature The NVC operates the equipment according to the test temperatur
20. meplate and require power contactors For more information read your furnace manual 6 2014 04 10 Phason Natural Ventilation Control Connecting the temperature probe Follow the guidelines below when installing and connecting the temperature probe Do not run the sensor cable beside AC power TEMP cables or near electrical equipment w When crossing other cables or power lines cross them at a 90 degree angle Do not run the probe cable in the same conduit as AC power cables Replace damaged probes as soon as possible If there is no probe present or working properly the NVC displays either Pd probe damage or F5 probe short and switches off the relays Connecting an alarm system An alarm system can be a siren an alarm panel or an auto dialer See your alarm siren s installation guide for installation instructions and information about the type of system The descriptions for the alarm terminal are as follows CC common connection CA closed on alarm OA open on alarm To connect an alarm system If you are connecting the alarm system to a Normally open system closed on alarm network of controls and your system uses a CONTROL CONTROL normally open connection closes on alarm mae oS connect the system as shown in the normally open diagram C NC NO ALARM CC CA OA Join all the common CC connections together and all the closed on alarm CA connectio
21. ns together The NVC alarm relays must be in parallel with each other so any control can trigger the alarm system when an alarm condition occurs Power supply 33440000 7 Natural Ventilation Control If you are connecting the alarm system to a Normally closed system open on alarm network of controls and your system uses a CONTROL CONTROL normally closed connection opens on alarm 0 AA connect the system as shown in the normally closed diagram Join the alarm relays in a continuous loop The NVC alarm relays must be in series with each other so any control can trigger the alarm system when an alarm condition occurs Power supply Connecting the power source DC model NVC 2 12 12 VDC 250 mA DC model NVC 2 24 24 VDC 125 mA Before connecting the incoming power switch OFF the power at the source A gt Do not switch ON the power until you have finished all wiring and verified all equipment is properly connected and free of obstructions Finishing the installation 1 Make sure all wires are properly connected to the correct terminals 2 Place the cover on the control Phason 3 Switch on the power to the NVC it should display AAAA for three seconds the version for example u IOD for three seconds and then the temperature If the display does not light up go back to step 1 If the display shows an alarm message or the LED for Alarm is flas
22. odel NVC 2 24 Display kit model KNVC24 DISPLAY Control kit model KNVC24 CONTROL 33440000 23 Natural Ventilation Control Phason Limited warranty This warranty applies only to the Natural Ventilation Control NVC If you need warranty service return the product and original proof of purchase to your dealer Phason Inc Phason warrants the NVC subject to the following terms and conditions This warranty is valid only to the original purchaser of the product for two years from the manufacturing date The manufacturing date is stated in the first eight digits of the serial number in the form year month day Phason hereby warrants that should the NVC fail because of improper workmanship Phason will repair the unit effecting all necessary parts replacements without charge for either parts or labor Conditions Installation must be done according to our enclosed installation instructions The product must not have been previously altered modified or repaired by anyone other than Phason The product must not have been involved in an accident misused abused or operated or installed contrary to the instructions in our user and or installation manuals Phason s opinion about these items is final The person requesting warranty service must be the original purchaser of the unit and provide proof of purchase upon request All transportation charges for products submitted for warranty must be paid by the purchaser
23. onnection Close duration Heater set point Rain sensor Close off idle duration High alarm Ratings Control layout Hysteresis Temperature probe Control overview Idle band Temperature test mode Curtain machine connection 6 Low alarm Temperature units Curtain set point Manual override mode Troubleshooting Curtain settings overview Factory defaults 33440000 1 Natural Ventilation Control Features Automatic temperature based control with extended temperature range 13 to 125 F 25 to 51 7 C Programmable On and Off durations for the open and close relays 1 to 900 seconds up to 15 minutes Programmable Idle band 1 0 to 10 0 F 0 6 to 5 5 C Programmable heater Hysteresis 0 3 to 5 0 F 0 2 to 2 8 C Programmable High and Low temperature alarms Two curtain relays one open one close Heater control relay Electrical ratings A Model NVC 2 12 Model NVC 2 24 12 A at 30 VDC Input power Open close heat relays gt 6 Phason Alarm relay for external alarm system Four button keypad Four character LED display Programming and status LEDs Manual override test mode Power failure settings protection Temperature probe 6 feet extendable to 500 feet Rain Sensor optional Rugged enclosure corrosion resistant water resistant and fire retardant Limited warranty two years 12 VDC 250 mA 24 VDC 125 mA 15 A at 120 230 VAC
24. ove the cover from the control Make sure not to disconnect the ribbon cable from the base it must stay properly connected Insert the USB drive into the connector on the back of the cover Press Up or Down until the display shows HEr Press Select The display shows d 5P Press Up or Down until the display shows HF dE Press Select The display shows na and the Version LED blinks Press Up or Down until the display shows 4 5 Press and hold Select until the Test LED blinks rapidly Release the button While the Test LED is blinking rapidly the firmware is updating Updating can take up to 2 minutes After updating the display shows AAAA for a few seconds followed by the version number and then the main temperature display properly connected and then fasten the cover to the base To update the firmware using the POWER OFF method 20 Switch off the power to the control Loosen the four cover screws and gently remove the cover from the control Make sure not to disconnect the ribbon cable from the base it must stay properly connected Insert the USB drive into the connector on the back of the cover Switch on the power to the control while holding the Select button Keep holding the button until the Test LED blinks rapidly Release the button While the Test LED is blinking rapidly the firmware is updating Updating can take up to 2 minutes After updating the display shows AAAA fo
25. r a few seconds followed by the version number and then the main temperature display When finished remove the USB drive verify the ribbon cable is properly connected and then fasten the cover to the base 2014 04 10 Phason Natural Ventilation Control Troubleshooting If you see an error code and are not sure what it means look it up in Alarm settings and conditions on page 13 and then follow the instructions to resolve the condition The following table lists some problems possible causes and possible solutions If you are having a problem using the NVC see if the problem is in the following table and then follow the directions for correcting the problem Problem Possible cause Possible solution The power supply components There has been a power surge Avoid the problem in future by providing are blown or there are burn brownout or power outage proper voltage and protection for the control marks on boards and components Motors and fans slow down or Stop There is no power display A circuit breaker at service panel is off lt Reset the circuit breaker or tripped The incoming power wiring is Correct the wiring incorrect The display shows unusually The probe is not a Phason probe lt Remove the probe and then install a Phason high or low temperature probe The extension cable connected to the lt Check the extension cable connection and re temperature probe is providing a poor Solder it if necessary conn
26. r the Open off duration If the temperature is still above the Idle band the curtain again opens for the Open on duration and the process repeats If the temperature drops below the Idle band below 78 F in our example the curtain closes for the Close on duration After closing the curtain holds its position for the Close off duration If the temperature is still below the Idle band the curtain again closes for the Close on duration and the process repeats 33440000 9 Natural Ventilation Control Phason Time seconds l Open off duration 120 seconds A After the curtain opens for the On duration LLLLLILLLLLLLLLI it holds its position for the Off duration Open on duration 30 seconds Ay lf the temperature rises above the Idle band a see ees ee eee eee the curtain opens for the On duration D le Waals Wee Ga 4 Set point 80 F Idle band 4 2 F When the temperature is within the Idle band ee ei ae the curtain remains in its current position Fe Close off duration 150 seconds O se es Gt eS N E After the curtain closes for the On duration it lt holds its position for the Off duration fh Close on duration 60 seconds Time seconds lf the temperature falls below the Idle band the curtain closes for the On duration To program the Set point Default 70 0 F range 13 to 125 25 to 51 7 C 1 2 Press Down until the display shows SEPE Press Select The current set
27. ting in degrees displays and the Set point LED flashes Press Up or Down to adjust the setting and then press Select The change is saved and the display shows 5t FE Press Down to move to the Open on duration or Back to cancel and return to the main display To program the Open on duration Default 20 seconds range 1 to 900 up to 15 minutes 1 2 10 Press Up or Down until the display shows an Press Select The current setting in seconds displays and the On duration LED flashes Press Up or Down to adjust the setting and then press Select The change is saved and the display shows an Press Down to move to the Open off duration or Back to cancel and return to the main display 2014 04 10 Phason Natural Ventilation Control To program the Open off duration Default 180 seconds range 1 to 900 up to 15 minutes 1 Press Up or Down until the display shows DoF F 2 Press Select The current setting in seconds displays and the Off duration LED flashes 3 Press Up or Down to adjust the setting and then press Select The change is saved and the display shows Daf F 4 Press Down to move to the Close on duration or Back to cancel and return to the main display To program the Close on duration Default 30 seconds range 1 to 900 up to 15 minutes 1 Press Up or Down until the display shows an 2 Press Select The current setting in seconds displays and the On duration LED flashes
28. wer on method or the power off method The power on method is the easiest way to update the firmware If for some reason the power on method does not work use the power off method Getting a file You can get a firmware update file from the Phason support forum at www forum phason ca or the Phason website at www phason ca You need to copy the file to a USB memory stick USB drive The USB drive must be formatted as a FAT32 file system To check if the USB drive is the correct format insert it into your computer and then open Windows Explorer 1 Right click the USB drive Format A C 2 2 Click Properties eo Ex li File Edit View Tools H 3 Make sure the file system is FAT32 eee Con Removable Disk Properties If the file system is not correct you will need Ji Removable Disk aes General Tools_ Hardware SI to format the drive as FAT32 or use a Organize Sharewith gt 4 a different drive that is the correct format a FE Computer a i QpProperties 4 C h d fl h h U SB jew Local Disk C ail Type Removable Disk opy the update file to the root ot the Tir a Removable Disk oi 3 File system FAT32 drive The root of the drive means nor in a Solder 33440000 19 Natural Ventilation Control Phason To update the firmware using the POWER ON method 1 10 When finished remove the USB drive verify the ribbon cable is Loosen the four cover screws and gently rem
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