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Technical Guide
CN-IC1-12
:
i-Controller Visograph Navigation REV.201.05
Title
Flō i-Controller
Visograph Navigation for
Version 201.05
EXTERNAL
1
1-5JULY2021

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Table of Contents
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Summary of Contents for Flo CN-IC1-12

  • Page 1 Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Flō i-Controller Visograph Navigation for Version 201.05 EXTERNAL 1-5JULY2021...
  • Page 2: Table Of Contents

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Field Tech Menu ............22 Table of Contents Sensor Offsets ..............23 Pressure Sensors Offsets ........24 IMPORTANT: Read Before Continuing ......3 VAV Offsets ............24 Introduction Screens ............4 Test Mode Descriptions ..........24 File Descriptions ............
  • Page 3: Important: Read Before Continuing

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Compressor Overrides: ......... 39 Energy Recovery Wheel (ERV) Overrides ....41 Condenser Overrides: ........... 39 Hydronic Heating Overrides ........41 Other Overrides ............. 40 Chilled Water Overrides ......... 42 VAV Overrides ............41 Water Condenser ............
  • Page 4: Introduction Screens

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation for Version 201.04 Title File Descriptions Introduction Screens These are the base files used for the firmware and Introduction screens are displayed during controller controller parameters. startup. 1. ISaGRAF Version: The version of the base program inside the i-Controller.
  • Page 5: Main Menu

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Main Menu Schedules The Main Menu provides easy access to controller A schedule is used to activate/ deactivate an event on a information. When an alarm is present, the Alarm Bell specified day/ time. To create a scheduled event, use the indicator is displayed.
  • Page 6: Zone Thermostat Control

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title 4. Once the desired value has been reached press the Set points button to set the value. Set points are used as the cut in/ out for various i- 5. Repeat steps 1-4 until all values in the schedule controller functions.
  • Page 7: Zone Thermostat Control

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title 6. Repeat steps 1-4 until all “Occupied” values have been set. 7. Press the (T8) button to view the “Unoccupied” set points. 8. Repeat steps 1-4 until all “Unoccupied” values have been set.
  • Page 8: System Status

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title System Status To navigate to the System Status menu options, press the corresponding key on the Visograph below the menu item number. Press the (T1) button to return to the Main Menu.
  • Page 9: Zone Thermostat Control

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title 6. Reheat/Reclaim In Temp: Temperature reading from temperature probe mounted in the Reheat/Reclaim Stage 1 inlet. 7. Reheat/Reclaim In 2 Temp**: Temperature reading from temperature probe mounted in the Reheat/Reclaim Stage 2 inlet.
  • Page 10 Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title down and lock out until discharge drops to an acceptable level. o Comp Low Suction Trip: Activated when a compressor’s suction pressure dropped below the safety limit (75PSI by default). Compressor will instantly shut down and lock out until suction rises to an acceptable level.
  • Page 11: Chilled Water Status

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Water Source Heat Pump (WSHP) Chilled Water Status When the unit is a WSHP the ‘Suction Pressure Setpoint’ Chilled Water Units will have a Chilled water status screen will be replaced ‘Discharge Pressure Setpoint’ while the in place of the Compressor status screen.
  • Page 12: Operation Mode Status

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title 9. Pre-Heat Status: If the pre-heat option is selected, Operation Mode Status the pre-heat status will display “ON” or “OFF”. From the System Status Menu Press T4 to enter the 10. CO2 Level (ppm)**: If a CO2 sensor option is Operation Mode Status page.
  • Page 13: Water Source Heat Pump

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Water Source Heat Pump Optional Equipment Status To view current status of optional connected equipment, When the unit is a WSHP the Condenser Status screen will press T7 from the System Status Menu.
  • Page 14: Vav Status

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title VAV Status ERV Status From the System Status Menu press the T7 button to From the System Status Menu press the T7 button to enter the Optional Equipment Status Menu page and enter the Optional Equipment Status Menu page and then T2 for VAV Status page.
  • Page 15: Power Exhaust Status

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Power Exhaust Status Energy Meter Status The Power Exhaust Status screen shows the exhaust fan When the unit is equipped to monitor energy conception, output status and current minimum and maximum speed the Energy Meter Status will display the unit consumption set points.
  • Page 16: Alarms

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Alarm Status Alarms Press T1 to return to the Alarms Menu. Each alarm will To navigate to the following menu options, from the Main display “ALARM” when an alarm is present and “OK”...
  • Page 17 Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title 11. Comp Status: This will display the status of each Digital compressor will gradually reduce compressor. Possible status values include: capacity increments until discharge pressure drops If multiple alarms are present, only the highest acceptable level.
  • Page 18: Alarm History

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Alarm History Alarm Resets The Alarm History will display a timestamp next to each Press T1 to return to the Alarms Menu. If a fan fail occurs alarm indicating the last alarm occurrence.
  • Page 19: Sensor Status

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Sensor Status Press T1 to return to the Alarms Menu. Each sensor status will display “FAIL” if the sensor has failed and “OK” when the sensor is still operational. Use the (T7) and (T8) buttons to navigate between the two “Sensor Status”...
  • Page 20: Network Information

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Modbus Network Network Information The Modbus and BACnet Network information screens The Network Information screens to display the Firmware display the communication status, address and Version, Expansion Board status (Online/ Offline), parameter version.
  • Page 21: Network Options

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Network Options The Network Options screen is used to view controller run-time information, configure the Controller Clock and Date, reset the Network Gateway to its default value, configure BACnet network address, and to manually reboot the i-Controller.
  • Page 22: Field Tech Menu

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Field Tech Menu To access the Field Tech Menu, on the “Main Menu” screen press the T1 and T7 buttons simultaneously. The “Field Tech Options” menu, is used to set sensor offsets, activate test modes, change sensor settings, set damper positions, and view Input/ Output status.
  • Page 23: Sensor Offsets

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Sensor Offsets 5. Repeat steps 1-4 to adjust the value of the Offset for the sensor you wish to adjust. Sensor Offsets are used to calibrate devices for their 6. Use the...
  • Page 24: Pressure Sensors Offsets

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Test Mode Descriptions Test modes are available for testing dehumidification mode, cooling mode, heating mode, occupancy, and a gas pressure check mode for verifying gas flow. All test modes will time out after 30-minutes.
  • Page 25: System Test Modes

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title To activate any of the test modes, navigate to the Test System Test Modes Modes Menu. System Test modes are used to evaluate physical unit 1. From the Visograph Main screen, access the Field components.
  • Page 26: Water-Cooled Condenser

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Water-Cooled Condenser Air Balancing A unit equipped with Water-Cooled Condenser, will have Air Balancing Mode aids the air balancer in the balancing a Water Balance test on the System Test screen to set the process.
  • Page 27: Damper Test Mode

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Damper Test Mode Heat Test Mode Damper Test Mode is used to open dampers to the user specified position. Figure 68.Heat Test Modes screen Full capacity heat test mode turns ON all heating stages.
  • Page 28: Operational Test Modes

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Comfort Cooling Operational Test Modes Comfort Cooling Test Mode: This mode is used to test Operational test modes are a variety of tests used to unit response to a call for space cooling. When activated evaluate different modes of operation.
  • Page 29: Feature Tests Modes

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Feature Tests Modes Sensor Verification Feature test modes are used to test sequences related to optional features included in a unit. These features include Return temp control (for units equipped with a...
  • Page 30 Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Figure 75. I/O Verification – Analog Inputs 1 Figure 79. I/O Verification – Analog Outputs 1 Figure 76. I/O Verification – Analog Inputs 2 Figure 80. I/O Verification – Analog Outputs 2 Figure 77.
  • Page 31: Clear All Test Modes

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Sensor Settings The “Sensor Settings” screen is used to set the maximum pressure of the pressure transducers if it is different from the default value, VAV options, and hydronic valve action. The default pressure values are 500PSI for the max suction pressure and 667PSI for the max discharge pressure.
  • Page 32: Set Damper Positions And Exhaust Fan Interlocks

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Set Damper Positions and Exhaust Fan Interlocks The “Set Damper Position and Exhaust Interlocks” screen is used to set the min/max percentage of the return air damper, the min position for the bypass damper, and additional outdoor air damper opening for exhaust fan interlocks.
  • Page 33: Damper Positions

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Damper Positions The “Damper Positions” screen is used to view the position of each dampers. Press T1 to return to the Field Tech Menu and press T5 to enter Current Damper Positions page.
  • Page 34: Input And Output Status

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Input and Output Status The “I/O Status” screens are used to view the reading for each input and output. Only the inputs and outputs specific to the Flō unit will be visible on the screens.
  • Page 35: Output Status

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Output Status Figure 1001. Output Status screen 4 Figure 97. Output Status screen 1 Figure 98. Output Status screen 2A Figure 999. Output Status screen 2B Figure 100. Output Status screen 3...
  • Page 36: Vav Status

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title VAV Status Demand Control Ventilation (DCV) The “DCV Settings” screen is used to set ventilation parameters for units equipped with a CO2 Sensor. The beginning ventilation CO2 level, the max ventilation CO2 level, and alarm parameter can be adjusted in this screen.
  • Page 37: Overrides

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Overrides If the i-Controller is connected to a BMS, remove RS485 connection before proceeding with Overrides. Before proceeding to the override options, please note that the overrides are not timed and must be manually removed once your task is complete.
  • Page 38: Output Overrides

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Figure 1078. Input Overrides screen 2 Figure 1102. Input Overrides screen 6 Output Overrides: Figure 1089. Input Overrides screen 3 Figure 1113. Output Overrides screen 1 T1: Go to QA Options T2: Go to Compressor Overrides...
  • Page 39: Compressor Overrides

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Condenser Overrides: Figure 1135. Output Overrides screen 3 Figure 1179. Condenser Overrides screen Figure 1146. Output Overrides screen 4 Compressor Overrides: Figure 1157. Compressor Overrides screen Figure 1168. Compressor Overrides screen 1B Two Stage Compressors...
  • Page 40: Other Overrides

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Other Overrides From the either the Input or Output Overrides screen, press T3 Other Ovrr to access ‘Other Overrides’. The “Other Overrides” screen is used to set specific input and output values for diagnostic testing. To place an override on a specific variable, first the override needs to be turned on and then the desired value is adjusted (i.e.
  • Page 41: Vav Overrides

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title VAV Overrides Hydronic Heating Overrides Figure 1202. VAV Overrides screen 1 Figure 1235. Hydronic Heating Overrides screen 1 Figure 1213. VAV Overrides screen 2 Figure 1246. Hydronic Heating Overrides screen 2 Energy Recovery Wheel (ERV) Overrides 1.
  • Page 42: Chilled Water Overrides

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Chilled Water Overrides When the unit is equipped with a chilled water coil, the ‘Other Overrides’ screen will display ‘Chilled Water Overrides’. Figure 12830. Chilled Water Override screen 3 Figure 1257. Other Overrides when Equipped with Chilled Water Figure 12931.
  • Page 43: Water Condenser

    Technical Guide CN-IC1-12 i-Controller Visograph Navigation REV.201.05 Title Water Condenser When the unit is equipped with a water condenser, the ‘Other Overrides’ screen will display ‘Water Condenser Overrides’. Figure 1335. Water Condenser Overrides screen 3 Figure 1302. Other Overrides when Equipped with Water Condenser Figure 1346.

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