Flo CN-IC1-12 Guide de démarrage rapide

Technical Guide

CN-IC1-12

Title:

i-Controller Visograph Navigation REV.201.05

EXTERNAL 1 1-5JULY2021

Flō i-Controller

Visograph Navigation for

Version 201.05

 
Technical Guide  
CN-IC1-12 
Title:
i-Controller Visograph Navigation REV.201.05 
 
EXTERNAL 2 1-5JULY2021 
Table of Contents 
 
IMPORTANT: Read Before Continuing ............................3 
Introduction Screens........................................................4 
File Descriptions.......................................................4 
Main Menu.......................................................................5 
Schedules .........................................................................5 
Zone Thermostat Control.........................................6 
Set points .........................................................................6 
Zone Thermostat Control.........................................7 
System Status...................................................................8 
Temperature Status.................................................8 
Zone Thermostat Control.........................................9 
Compressor Status...................................................9 
Chilled Water Status ..............................................11 
Water Source Heat Pump (WSHP) ........................ 11 
Operation Mode Status .........................................12 
Condenser Status...................................................12 
Water Source Heat Pump ..................................... 13 
Condenser Information......................................... 13 
Optional Equipment Status....................................13 
VAV Status............................................................. 14 
ERV Status ............................................................. 14 
Power Exhaust Status............................................ 15 
Zone Thermostat Status........................................ 15 
Energy Meter Status ..............................................15 
Alarms ............................................................................16 
Alarm Status...........................................................16 
Alarm History .........................................................18 
Alarm Resets ..........................................................18 
Sensor Status..................................................................19 
Network Information .....................................................20 
Modbus Network...................................................20 
BACnet Network ....................................................20 
Network Options....................................................21 
Field Tech Menu ............................................................22 
Sensor Offsets................................................................23 
Pressure Sensors Offsets .......................................24 
VAV Offsets............................................................24 
Test Mode Descriptions.................................................24 
System Test Modes........................................................25 
Water-Cooled Condenser......................................26 
Chilled Water Unit .................................................26 
Air Balancing..........................................................26 
Compressor Test Mode .........................................26 
Damper Test Mode................................................27 
Condenser Fan Test Mode.....................................27 
Heat Test Mode .....................................................27 
Reheat/ Reclaim Test.............................................27 
Operational Test Modes ................................................28 
Occupancy .............................................................28 
Dehumidification ...................................................28 
Comfort Cooling.....................................................28 
Heat Test Mode .....................................................28 
Fan Only Test Mode...............................................28 
Feature Tests Modes .....................................................29 
Sensor Verification.........................................................29 
I/O Verification ......................................................29 
Clear All Test Modes ......................................................31 
Sensor Settings...............................................................31 
Set Damper Positions and Exhaust Fan Interlocks.........32 
Damper Positions...........................................................33 
Input and Output Status ................................................34 
Input Status............................................................34 
Output Status.........................................................35 
VAV Status .............................................................36 
Demand Control Ventilation (DCV)................................36 
Overrides........................................................................37 
Input Overrides:.....................................................37 
Output Overrides:..................................................38 

Technical Guide

CN-IC1-12

Title:

i-Controller Visograph Navigation REV.201.05

EXTERNAL 3 1-5JULY2021

Compressor Overrides: ......................................... 39

Condenser Overrides: ........................................... 39

Other Overrides .....................................................40

VAV Overrides....................................................... 41

Energy Recovery Wheel (ERV) Overrides...............41

Hydronic Heating Overrides...................................41

Chilled Water Overrides.........................................42

Water Condenser...........................................................43

IMPORTANT:Read Before Continuing

i-Controller Unit Types: Some unit types such as Water-Source Heat Pumps and Chilled Water Units have screens that are

specific to that unit type. Refer to the ‘Additional Unit Types’ section for these specialized screens.

Working with Building Management Systems: Once an i-Controller Modbus or BACnet connection is established to the

Building Management System (BMS) and the controller is ONLINE, the BMS is the Master controller. All set point and

schedule changes are to be made at the BMS. Changes can be made on the i-Controller but are temporary and will be

overwritten by the BMS.

To make a temporary setting change perform the following steps:

1. Unplug the RS485 Connector from the i-Controller.

2. Wait at least 90 seconds, until the BMS Status on the Network Info screen on the Visograph reads Offline.

3. Adjust the necessary settings for testing or change the desired variable. (For instructions on how to navigate the

Visograph, please refer to the instructions below).

4. When testing/changes are complete, plug the RS485 Connector back into the RS485 port.

5. Once the Modbus/BACnet connection has been re-established and the controller shows Online on the Network

Info screen, double check the changed variable to ensure that it is correct.

6. If the changed variable has been over-written, then the variable change needs to be made at the BMS.

Technical Guide

CN-IC1-12

Title:

i-Controller Visograph Navigation for Version 201.04

EXTERNAL 1-5JULY2021

Introduction Screens

Introduction screens are displayed during controller

startup.

Figure 1. Introduction Splash screen

T8: Go to Main Menu

T2 + T3: Go to Version Info

Figure 2. Invalid Parameter File Message

Figure 3. Version Information screen

T2: Go to Overrides

T8: Go to Main Menu

File Descriptions

These are the base files used for the firmware and

controller parameters.

1. ISaGRAF Version: The version of the base program

inside the i-Controller. This field should match the

CRM field “Revision #” for a given unit.

2. VisoGraph Version: The version of the screens

shown on the Visograph.

3. Parameters Version: The version of the parameters

file loaded into the i-Controller.

Technical Guide

CN-IC1-12

Title:

i-Controller Visograph Navigation REV.201.05

EXTERNAL 5 1-5JULY2021

Main Menu

The Main Menu provides easy access to controller

information. When an alarm is present, the Alarm Bell

indicator is displayed. When one or more overrides are

present, the Warning indicator is displayed. The Main

Menu also displays the Date and Time and will indicate

when the unit is in a Test Mode.

To navigate the menu options, press the corresponding

key on the Visograph below the menu item number.

1. Schedule –Set weekly schedule for “Occupied” and

“Unoccupied” times.

2. Set Points –Define set points for cooling, heating,

and dehumidification modes during occupied and

unoccupied modes of operation.

3. Status –View temperature, compressor, and

operation mode status.

4. Alarms –View alarm status, sensor status, and

alarm resets.

5. Network Info –View controller IP settings and run

time, change controller Modbus address, and

change the Flō i-Controller date and time.

6. Field Technician Options –Parameters to be set by

a certified field technician only (password

protected). Press the (T1-T7) keys to access the

menu item.

Figure 4. Main Menu

T1: Go to Schedule

T2: Go to Set Points

T3: Go to Status

T4: Go to Alarms

T5: Go to Network Info

T8: Go to Logo screen

Schedules

A schedule is used to activate/ deactivate an event on a

specified day/ time. To create a scheduled event, use the

arrow and enter keys to select the day of the week of the

occurrence. Select the occupied or unoccupied period

and enter the hours and minutes for the event.

NOTE: See Important notice on page 5 before modifying

schedules.

Each day of the week is listed next to a corresponding

occupied time “Occ-Time” and unoccupied time “UnOcc-

Time”. The Flō unit will operate in “Occupied Mode” in

between the “Occ-Time” and “UnOcc-Time” listed for the

day of the week.

Each time on the schedule should correspond with the

store hours. All hours should be set in military time on a

24hr basis. (For Example: on Mondays, the occupied time

starts at 8:00am and the unoccupied time begins at

10:00pm. The above screen should read next to the “M”

8:00 under the “Occ-Time” and 22:00 under the “UnOcc-

Time”.) See Figure 5.

Figure 5. Monday 8am to 10pm Schedule

To change the occupied and unoccupied times:

1. Using the and buttons (T4 and T6,

respectively) navigate to the hour or minute that

you wish to change.

2. Press the (T5) button and the value should

blink.

3. Using the and buttons increase and

decrease the value as desired.

Technical Guide

CN-IC1-12

Title:

i-Controller Visograph Navigation REV.201.05

EXTERNAL 6 1-5JULY2021

4. Once the desired value has been reached press the

button to set the value.

5. Repeat steps 1-4 until all values in the schedule

have been updated.

6. Once all changes have been completed, press the

(T1) button to return to the Main Menu.

Figure 6. Schedule Configuration screen

T1: Go to Main Menu

T4: Scroll Up/Increase Value

T5: Enter (Select and Set Value)

T6: Scroll Down/Decrease Value

Zone Thermostat Control

Units configured to use a 2-Stage zone thermostat have

the option to use internal schedule or an external source

for an occupancy schedule. If internal schedule is used,

see above to set schedule. If the schedule is from an

external source, the display will be noted as shown below

and the schedule will need to be set from the external

source.

Figure 7. External Schedule Configuration screen

Set points

Set points are used as the cut in/ out for various i-

controller functions. The i-Controller Set Point

configuration section has 3 navigation screens.

The “Set Points” option should only be used if operation

set points are not being communicated to the Flō i-

Controller from a Building Management System (BMS).

If the Flō i-Controller is connected to a BMS over Modbus,

the set points shown on this screen will be automatically

updated with the set points entered in the BMS. The VAV

Set Points will only appear if VAV controls are connected

to the Flō unit. The set points limitations are as follows:

Cool SP: 60 - 85F

Heat SP: 50-80F

Dew Point SP: 48-60F

There must be a minimum of 4-degrees between the

heating and cooling set points. If set points are inputted

too close together, the program will automatically adjust

the set points per the following rules:

Outdoor Air Temp > 60 ˚F: Heating Set Point = Cooling Set

Point - 4 ˚F

Outdoor Air Temp < 50 ˚F: Cooling Set Point = Heating Set

Point + 4 ˚F

1. If the Flō i-Controller is not connected to a BMS,

perform the following steps to modify the set

points.

2. Using the and buttons (T4 and T6,

respectively) navigate to the “Occupied” set points

that you wish to change.

3. Press the (T5) button and the value should

blink.

4. Using the and buttons increase and

decrease the value as desired.

5. Once the desired value has been reached press the

button to set the value.

Technical Guide

CN-IC1-12

Title:

i-Controller Visograph Navigation REV.201.05

EXTERNAL 7 1-5JULY2021

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.

9. Once all changes have been completed, press the

(T7) to return to the “Occupied” set points

screen or press the (T1) button to return to

the Main Menu.

Figure 8. Occupied Set Points - screen 1

T1: Go to Main Menu

T4: Scroll Up/Increase Value

T5: Enter (Select and Set Value)

T6: Scroll Down/Decrease Value

T7: Go to Previous Page

T8: Go to Next Page

Figure 9. Unoccupied Set Points - screen 2

Figure 10. VAV & Power Exhaust Fan Set Points - screen 3

Zone Thermostat Control

Units configured to use 2-Stage zone thermostats have

the internal heating and cooling setpoints disabled for

both Occupied and Unoccupied modes. However, the

internal Dew Point set point is still active for both modes.

Figure 11. Occupied Set Point screen 1 with TSTAT active

Figure 12. Unoccupied Set Point screen 2 with TSTAT active

Technical Guide

CN-IC1-12

Title:

i-Controller Visograph Navigation REV.201.05

EXTERNAL 8 1-5JULY2021

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.

1. Temperature Status –View the current

temperature in the treated space, space dew point,

supply duct temperature, return air temperature,

or outdoor conditions.

2. Compressor Status –View the current compressor

and suction pressure status.

3. Operation Mode Status –View the current

operation mode (Dehumidification, cooling, or

heating), reheat or reclaim status, current

occupancy, and other key system parameters.

4. Condenser Status –View the current condenser

fan status.

5. Heat Status –View the current heating operation

mode and stage status.

6. Optional Eq Status** –View current status of

optional connected equipment. This includes VAV

zones, ERV wheels, Power Exhaust, or Zone

thermostat inputs. Status will only appear if

optional equipment is present.

7. Energy Meter –View current power consumption.

** If Equipped

Figure 13. System Status screen

T1: Go to Main Menu

T2: Go to Temperature Status

T3: Go to Compressor Status

T4: Go to Operation Mode

T5: Go to Condenser Status

T6: Go to Heat Status

T7: Go to Optional Equipment Status**

T8: Go to Energy Meter**

Temperature Status

There are 2 temperature status screens that display the

reading of various temperature sensors throughout the

unit. NOTE: when an asterisk (*) is displayed to the right

of the value, the value is in override.

Use the (T7) and (T8) buttons to navigate

between the two “Temperature Status” pages. Press

(T1) to return to the System Status Menu.

1. Space Temperature: Temperature reading from

temperature probe mounted in the space.

2. Space Dew Point: Dew point calculated from the

temperature and humidity probe readings

mounted in the space.

3. Supply Temperature: Temperature reading from

temperature probe mounted in the supply air duct.

4. Return Air Temperature: Temperature reading

from temperature probe mounted in the return air

duct.

5. Outdoor Air Temperature: Temperature reading

from temperature probe mounted in underneath

the rain hood on the Flō unit.

Technical Guide

CN-IC1-12

Title:

i-Controller Visograph Navigation REV.201.05

EXTERNAL 9 1-5JULY2021

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.

8. Outdoor Dew Point**: Dew point calculated from

the temperature and humidity probe readings

mounted underneath the rain hood of the Flō unit.

** If Equipped

Figure 14. Temperature Status screen 1 with Overrides Present

T1: Go to System Status Menu

T7: Previous Page

T8: Next Page

Figure 15. Temperature Status screen 2 with Overrides Present

Zone Thermostat Control

Units configured to use 2-Stage zone thermostats note

the control option on the Temperature Status screen.

Figure 16. Temperature Status screen 3 with TSTAT active

Compressor Status

There are 4 Compressor Status screens; however, Status

screens are only displayed for compressors equipped in

the unit. The Suction Pressure Status will only appear if

Compressor 2 is a digital scroll compressor (when 4

compressors are present), Compressor Status screens 3

and 4 will only be displayed when the unit is equipped

with a third and fourth compressor.

Use the (T7) and (T8) buttons to navigate

between the two “Compressor Status” pages. The second

“Compressor Status” page is only available if the Flō unit

contains more than two compressors. Press (T1) to

return to the System Status Menu.

1. Dig Comp # Operating Capacity: Digital

Compressor operating percentage.

2. Fixed Compressor # Status: Fixed Compressor

operating status; “ON” or “OFF”.

3. Suction Pressure for Comp #: Suction pressure

reading from the pressure transducer located on

the denoted Digital Compressor.

4. Suction Pressure Set Point: Suction pressure set

point set based on the current control strategy.

5. Compressor # Status: This will display the status of

each compressor. Possible status values include:

oOK: Compressor is running properly.

oComp High Dis Trip: Activated when a

compressor’s discharge pressure has

exceeded the safety limit (550PSI by

default). Compressor will instantly shut

Technical Guide

CN-IC1-12

Title:

i-Controller Visograph Navigation REV.201.05

EXTERNAL 10 1-5JULY2021

down and lock out until discharge drops to

an acceptable level.

oComp 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.

oNo Comp Proof: Activated when the

compressor signal is on, but suction

pressure and discharge pressure are within

20PSI of each other.

oLow Suct Press: Activated when the suction

pressure decreases below the lower pressure

limit (80PSI).

oHigh Suct. Press: Activated when the suction

pressure increases above the upper pressure

limit (varies per mode) during dehumidification

or cooling call.

oHigh Dis Press Alarm: Activated when the

suction pressure increases above the upper

pressure limit (500PSI).

oSuct. Trans Fail: Activated when the suction

transducer reading is out of range.

oDis Trans Fail: Activated when the discharge

transducer is out of range.

oGradual Shutdown: Activated when the

discharge pressure of a digital compressor is

above the warning limit. Digital compressor will

gradually reduce capacity in 20% increments

until discharge pressure drops to an acceptable

level.

oOA Temp Comp Lockout: Activated when the

outdoor air temperature is too cold to allow

compressors to run.

oEconomizer Lockout*: Activated when

economizer mode is active.

Figure 17. Compressor Status screen 1

T1: Go to System Status Menu

T7: Previous Page

T8: Next Page

Figure 18. Compressor Status screen 2

Figure 19. Compressor Status screen 3

Figure 20. Compressor Status screen 4

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