Flo i-Controller User manual

Installation Guide
IN-IC1-15
Title:
Jace to i-Controller REV.200 MPU (575V 40–70 Ton) Conversion
Flō Tech Support 888-598-1198 14-6DEC2021
Contents
1. Overview ....................................................................2
2. Contractor Tools & Materials.....................................2
3. Flō Supplied Parts.......................................................2
4. Pulling Communications Cable...................................3
5. Install New Power Supply ..........................................3
5.1 Install New Transformers...................................3
5.2 Wire New Transformers.....................................3
5.3 Prepare i-Controller for Installation...................3
5.4 Prepare Expansion Module A for Installation....3
5.5 Prepare Expansion Module B for Installation ....3
6. Install New Safety Devices & Sensors ........................4
6.1 Install Digital Phase Monitor..............................4
6.2 Install Refrigerant Pressure Transducers...........4
6.3 Replace Reheat/Reclaim Surface-Mount Probe 4
6.4 Install Float Switch .............................................4
6.5 Install New CO2 Sensor......................................5
6.6 Install Space Temp/RH Combo Sensor...............5
7. Install The i-Controller Components..........................6
7.1 Remove Existing Jenesys Controls .....................6
7.2 Install New i-Controller and Expansions ............6
7.3 Install Visograph.................................................6
7.4 Connect the i-Controller to Power.....................6
7.5 Connect the Expansion Modules to Power........6
7.6 Wire Inputs.........................................................7
7.7 Wire Analog Output...........................................8
7.8 Wire Relay Output..............................................9
7.9 Connect BACnet Network ..................................9
8. Validate and Power Up the Unit ..............................10
8.1 Check Continuity..............................................10
8.2 Power Up the Unit ...........................................10
8.3 Setting The Digital Phase Monitor (DPM)........10
9. Test Unit Functionality.............................................10
9.1 Set Time and Date............................................10
9.2 Verify i-Controller Inputs on Visograph............10
9.3 Calibrate Sensors..............................................10
9.4 Verify i-Controller Outputs...............................10
9.5 Dehumidification Test Mode............................11
9.6 Heating Test Mode...........................................11
10. BMS Connectivity .................................................12
11. Appendix: .............................................................13
11.1. i-Controller Layout........................................13
11.2. Expansion Board Layout...............................13

Installation Guide
IN-IC1-15
Title:
Jace to i-Controller REV.200 MPU (575V 40–70 Ton) Conversion
Flō Tech Support 888-598-1198 24-6DEC2021
1. Overview
This document describes the steps required to replace the
Jace2 controller with an i-Controller in a 40-70 ton MPU
unit.
Below is a brief summary of an i-Controller upgrade.
•Power supply replacement.
•CO2 sensor replacement.
•Pressure transducer installation.
•Reheat/reclaim inlet sensor replacement.
•Space temp/RH sensor replacement.
•Controller replacement.
•Perform operational tests.
2. Contractor Tools & Materials
In addition to a standard toolset, having the items in Table
1 are required during the installation.
ADDITIONAL TOOLS & MATERIALS
Cordless Drill
Drill Bit Set
Multi-Meter
Adjustable Wrench
Wire Strippers
Wire Crimpers
Temperature Gauge
Psychrometer
Socket Set –Standard
Cell Phone
Red Fork Wire Connectors
Fine Point Sharpie Marker
5/16” Self-Tapping Sheetmetal Screws
18AWG Stranded Insulated Wire (Red, Black & White)
Blue, Orange & Yellow Wire Nuts
Red Insulated Female Spade Connectors
Micro Control Screwdriver Set (Eye Glass Repair Size)
Controls Screwdriver
½” Step Drill Bit for CO2 Sensor Probe Installation
¼” Refrigerant Tee with Schrader Depressor & 2 Schrader
Cores
4-Conductor Shielded Twisted Wire or Equivalent
5-Conductor Shielded Twisted Wire or Equivalent
BacNet Compliant Cable
Table 1. Additional Tools & Materials
3. Flō Supplied Parts
The parts contained in the Flō supplied parts kit are
provided specifically for the Flō unit at this site.
Part Description
Part Number
Qty
i-Controller Unit Controller
PTCS8188101
1
i-Controller Expansion Module
PTCS8187001
2
DIN-Rail
PTCSP91730
3
DIN-Rail End Cap
PTCSV66150
6
i-Controller Visograph
PTCS8189002
1
Visograph/CO2 Sensor
Mounting Bracket
PTCS184068001
2
24VAC Isolated Transformer
PTCSP47700
2
Fuse Elec 10A/500V MIG
PTCSP63180
2
4-Wire Duct CO2 Sensor (with
Tubing and Duct Probe)
PTCSV57760
1
Pressure Transducer (0-500psi)
PTCSV67380
4
Transducer Whip (Blue)
PTCSV42220
4
Pressure Transducer (0-667psi)
PTCSV67390
4
Transducer Whip (Yellow)
PTCSV42100
4
Temperature/Humidity Combo
Sensor **
PTCS2035752
1
Reheat/Reclaim Coil Surface
Mount Temp Sensor
PTCS5011125
2
Float Switch Kit
PTCSS25801
1
Digital Phase Monitor
PTCSV26350
1
Upgrade Document
IN-IC1-15
1
Table 2. Flō Supplied Parts List
**NOTE: PTCS2035752 may be substituted for a RH
Sensor (PTCS2035751) and a Temp Probe (PTCS5011121).

Installation Guide
IN-IC1-15
Title:
Jace to i-Controller REV.200 MPU (575V 40–70 Ton) Conversion
Flō Tech Support 888-598-1198 34-6DEC2021
4. Pulling Communications Cable
A BacNet communications cable must be pulled to the
unit for communication to the BMS system.
5. Install New Power Supply
CAUTION: Make sure the power to the Flō unit is turned
off and internal electrical circuits are NOT
energized.
5.1Install New Transformers
Using 5/16” screws, mount the 2 transformers in an area
that has available space inside the controls cabinet.
Using the sharpie, mark the transformers as #1 and #2.
Transformer 1 will be dedicated to powering the i-
controller. Transformer 2 will be dedicated to powering all
three expansion modules.
Install the Flō provided fuses (Fuse Elec 10A/500V MIG) in
each of the new transformers.
NOTE: No other devices will be connected to these
transformers.
5.2Wire New Transformers
Run the new transformers’high voltage wires to Flō high
voltage terminals L1 and L2.
NOTE: Ensure the transformer tap correlates to the unit’s
high voltage.
Leave the new transformers’ low voltage wires
disconnected. These will be terminated in the next steps.
5.3Prepare i-Controller for Installation
Attach 10" lengths of Black 18 AWG wire to the following i-
Controller green plug connection points: 1, 7, 8, 25, 28 &
61. See Figure 1. for plug orientation.
Attach 10" lengths of Red 18 AWG wire to the following i-
Controller green plug connection points: 9, 15, 16, 29 & 71.
See Figure 1. for plug orientation.
Figure 1. Green Connector Reference
Attach Red 18 AWG jumper wires between the following
points on the i-Controller green plug connection points: 71
to 80, 80 to 86, and 86 to 90.
Attach a new Black 18 AWG wire between the Flō unit’s
CSTB1 24 VAC- (grounded side) and the Black 18 AWG wire
coming from point 61 on the i-Controller.
Attach a new Red 18 AWG wire between the Flō unit’s
CSTB1 24 VAC+ (hot side) and the Red 18 AWG wire coming
from point 71 on the i-Controller.
5.4Prepare Expansion Module A for Installation
Attach 10" length of Black 18 AWG wire to the following
Expansion green plug connection points: 1 & 15**.
**NOTE: Only pigtail 15 if the unit has a CO2 or outdoor
humidity sensor.
Attach a 10" length of Red 18 AWG wire to the following
Expansion green plug connection point: 9.
5.5Prepare Expansion Module B for Installation
Attach 10" lengths of Black 18 AWG wire to the following
Expansion green plug connection points: 1, 15 & 28*.
*NOTE: Point 28 only gets a wire if either 2nd space temp
or 2nd stage reheat/reclaim inlet probe.
Attach a 10" length of Red 18 AWG wire to the following
Expansion green plug connection point: 9 & 16.

Installation Guide
IN-IC1-15
Title:
Jace to i-Controller REV.200 MPU (575V 40–70 Ton) Conversion
Flō Tech Support 888-598-1198 44-6DEC2021
6. Install New Safety Devices & Sensors
6.1Install Digital Phase Monitor
Number the wires on the old phase monitor (you will be
landing these wires in the same points on the new digital
phase monitor). Once numbered, remove the wires from
the old phase monitor, then remove the old phase monitor
from the unit.
Mount the new digital phase monitor (DPM) using two
screws in the same position that the old phase monitor was
located. You may need to either make space or find a
nearby location to fit the DPM in.
Once the new DPM is mounted, connect the existing
numbered wires to match numbered points on the new
DPM using female spade connectors.
Pull a 2-conductor cable from the DPM to the future i-
Controller location in the electrical cabinet.
6.2Install Refrigerant Pressure Transducers
Remove existing suction transducers from circuits 1&2.
Discard this transducers and cables.
Install the 0-500 PSI Suction transducers on the suction
lines of circuits 1,2,3&4. Install the 0-667 PSI Discharge
transducers on the liquid lines of circuits 1,2,3&4. If there
are spare service ports on the unit, install the transducers
on a spare service port. If spare service ports are not
available, use a refrigerant tee.
Using the provided transducer whips, plug the blue whips
into the new suction transducers and the yellow whips into
the new discharge transducers. Run the whips back to the
future i-Controller location in the electrical cabinet.
6.3Replace Reheat/Reclaim Surface-Mount Probe
If there is a temperature probe currently on the
Reheat/Reclaim inlet, remove and discard probe and cable.
Secure the new temperature probe on the inlet piping for
the Reheat/Reclaim service of the unit. If there are 2 stages
for Reheat/Reclaim both probes will be used. Run the temp
probe sensor wires back to the future i-Controller location
in the electrical cabinet.
6.4Install Float Switch
Connect the float switch to the provided bracket using the
provided washer and nut.
Mount the provided bracket so that the base of the bracket
is roughly 2 inches from the drain pan base and located at
the front left corner of the drain pan, on the supply fan wall
(see figure 2 for positioning requirements)
Figure 2.Float Switch Mounting Position
Pull a 2-conductor cable to the electrical cabinet.

Installation Guide
IN-IC1-15
Title:
Jace to i-Controller REV.200 MPU (575V 40–70 Ton) Conversion
Flō Tech Support 888-598-1198 54-6DEC2021
6.5Install New CO2 Sensor
Locate and unfasten the old CO2 sensor. It is located on a
column in the store or in the return section of the Flō unit.
Pull a new 4-conductor cable to the return section of the
Flō unit. Fasten the new bracket and new sensor to the unit
above the outdoor air damper opening on the right-hand
side (see figure 3, upper arrow).
Locate the dip switches inside of the new CO2 sensor and
change dip switch 1 from 10 VDC to 5 VDC.
Drill a 1/2" hole in the return damper housing and mount
the probe (see figure 3, lower arrow).
Figure 3. CO2 sensor location inside the unit
Wire the new CO2 based on the following (see Figure 4.):
•+24VAC –Red wire
•-24VAC –Black wire
•COM –Green wire
•CO2 SIGNAL –White wire
NOTE: Do not wire the CO2 sensor to the i-Controller or
Expansion Module at this time.
Figure 4. CO2 Sensor Wiring
6.6Install Space Temp/RH Combo Sensor
Replace the current space temp/RH sensors in the space
with a new combo sensor (203-5752) provided with this kit.
NOTE: If necessary, pull a new 5-wire conductor cable.
Mount the base of the new space temp/RH combo sensor
in the place where the old sensor was located.
Wire the new combo sensor based on the following (see
figure 5.):
•+12VDC –Red wire
•0V (on Humidity side) –Black wire
•RH OUT (+0-5V) –White wire
•0V (on Temp side) –Green wire
•SIGNAL –Blue wire
Figure 5.1. 203-5752 Space Temp/Humidity Terminal Connections
Figure 5.2. 203-5751 Humidity Terminal Connections

Installation Guide
IN-IC1-15
Title:
Jace to i-Controller REV.200 MPU (575V 40–70 Ton) Conversion
Flō Tech Support 888-598-1198 64-6DEC2021
Figure 5.3. 501-1125 Temp Sensor Mounting Position In RH
IMPORTANT: If you have a 203-5752, move the jumper on
JP3 from 10V to 5V on the combo sensor.
NOTE: Do not wire the combo sensor to the i-Controller or
Expansion Module at this time.
7. Install The i-Controller Components
7.1Remove Existing Jenesys Controls
Locate the Jenesys controls. Remove all Jenesys controls
from the din rail.
NOTE: If the Jenesys inputs and outputs are not labeled,
label these wires before proceeding.
7.2Install New i-Controller and Expansions
Mount the i-Controller and expansion modules on DIN
rails.
Double-check that the Expansion Modules are addressed
as 1 &2. Verify the addressing and adjust as necessary on
the dip switches (location called out in Figure 6. This figure
is an example of expansion A setup).
Expansion A –1 up, 2 down, 3 down, 4 down
Expansion B –1 down, 2 up, 3 down, 4 down
NOTE: The actual switch may be white but for illustrative
purposes, the switch is black in the Figure 6 below.
Figure 6. Flō i-Controller Expansion Addressing
Wire the 2 expansion modules to the main i-Controller via
the CAN Bus port in a daisy change based on the following:
•Expansion Module (B) 30 (+) →Expansion Module (A) 30 (+)
→i-Controller 100 (+)
•Expansion Module (B) 32 (-) →Expansion Module (A) 32 (-) →
i-Controller 101 (-)
•Expansion Module (B) 33 (gnd) →Expansion Module (A) 33
(gnd) →i-Controller 102 (gnd)
7.3Install Visograph
Mount the Visograph and connect it to the i-Controller
port.
Wire the Visograph based on the following:
•White wire VNR (Visograph) →103 (i-Controller)
•Red wire + (Visograph) →104 (i-Controller)
•Black wire –(Visograph) →105 (i-Controller)
7.4Connect the i-Controller to Power
Connect transformer 1’s low voltage common to black 10”
wire from i-Controller pin 1.
Connect transformer 1’s low voltage 24V to red 10” wire
from i-Controller pin 9.
7.5Connect the Expansion Modules to Power
Connect transformer 2’s low voltage common to black 10”
wire from all three expansion modules pin 1.
Connect transformer 2’s low voltage 24V to red 10” wire
from all three expansion modules pin 9.

Installation Guide
IN-IC1-15
Title:
Jace to i-Controller REV.200 MPU (575V 40–70 Ton) Conversion
Flō Tech Support 888-598-1198 74-6DEC2021
7.6Wire Inputs
Wire analog/digital inputs based on table 3.
Existing
Points
i-Controller
i-Controller
Pin #
NEW
24 VAC Transformer Power 1 -
1*
24 VAC Transformer Power 1 +
9*
Space Temperature 1 SG
2
Space Temperature 1 0V
7*
Space Humidity 1 SG
3
Space Humidity 1 0V
8*
Space Humidity 1 Power
16*
Reuse
Jenesys
Sensor
Supply Temperature SG
4
Supply Temperature 0V
7*
NEW
Reheat/Reclaim Inlet Probe 1 SG
5
Reheat/Reclaim Inlet Probe 1 0V
7*
Reuse
Jenesys
Sensor
Outside Air Temperature SG
6
Outside Air Temperature 0V
7*
Return Temperature SG
10
Return Temperature 0V
7*
NEW
Suction Press Comp 1 SG WHT
11
Suction Press Comp 1 0V BLK
8*
Suction Press Comp 1 Pwr RED
15*
Discharge Press Comp 1 SG WHT
12
Discharge Press Comp 1 0V BLK
8*
Discharge Press Comp 1 Pwr RED
15*
Suction Press Comp 2 SG WHT
13
Suction Press Comp 2 0V BLK
8*
Suction Press Comp 2 Pwr RED
15*
Discharge Press Comp 2 SG WHT
14
Discharge Press Comp 2 0V BLK
8*
Discharge Press Comp 2 Pwr RED
15*
Existing
Points
i-Controller
i-Controller Pin
#
See Wiring
Diagram
Smoke Detector/
Emergency Shutdown SG
40
Smoke Detector/
Emergency Shutdown 0V
61*
Airflow Switch SG
41
Airflow Switch 0V
61*
Clogged Filter SG
42
Clogged Filter 0V
61*
Load Shed SG (if
equipped)
45
Load Shed 0V (if
equipped)
61*
NEW
Drain Pan Float Switch SG
43
Drain Pan Float Switch 0V
61*
Phase Monitor SG
44
Phase Monitor 0V
61*
Existing
Points
Expansion Module A
Expansion
A Pin #
NEW
24 VAC Transformer Power 2 -
1*
24 VAC Transformer Power 2 +
9*
CO2 SG (if equipped)
2
CO2 0V (if equipped)
15*
CO2 +24 (if equipped)
CSTB1
Red**
CO2 -24 (if equipped)
CSTB1
Black**
See
Wiring
Diagram
Outdoor Humidity SG
3
(if equipped)
Outdoor Humidity 0V
15*
(if equipped)
Outdoor Humidity Power
7
(if equipped)

Installation Guide
IN-IC1-15
Title:
Jace to i-Controller REV.200 MPU (575V 40–70 Ton) Conversion
Flō Tech Support 888-598-1198 84-6DEC2021
Existing
Points
Expansion Module B
Expansion B
Pin #
NEW
24 VAC Transformer Power 2 -
1*
24 VAC Transformer Power 2 +
9*
Suction Press Comp 3 SG WHT
2
Suction Press Comp 3 0V BLK
15*
Suction Press Comp 3 Pwr RED
16*
Discharge Press Comp 3 SG WHT
3
Discharge Press Comp 3 0V BLK
15*
Discharge Press Comp 3 Pwr RED
16*
Suction Press Comp 4 SG WHT
4
Suction Press Comp 4 0V BLK
15*
Suction Press Comp 4 Pwr RED
16*
Discharge Press Comp 4 SG WHT
5
Discharge Press Comp 4 0V BLK
15*
Discharge Press Comp 4 Pwr RED
16*
Space Temperature 2 SG
24
Space Temperature 2 0V
28*
Space Humidity 2 SG
6
Space Humidity 2 0V
15*
Space Humidity 2 Power
7
Reheat/Reclaim Inlet Probe 2 SG
29
Reheat/Reclaim Inlet Probe 2 0V
28*
*This indicates that you will be attaching to a 10” wire, not a pin.
**This indicates that you will be attaching to the CSTB1.
Table 3. Input Conversion Table
7.7Wire Analog Output
Wire analog outputs based on table 4.
Existing
Points
i-Controller
i-Controller
Pin #
See Wiring
Diagram
in Unit
Outside Air Damper SG
21
Outside Air Damper 0V
25*
Return Air Damper SG
22
Return Air Damper 0V
25*
Bypass Air Damper SG
23
Bypass Air Damper 0V
25*
VFD SG
24
VFD 0V
25*
Digital Compressor 1 SG
26
Digital Compressor 1 0V
25*
Modulated Reheat SG
27
Modulated Reheat 0V
25*
New
CSTB -24VAC Black
28*
CSTB +24VAC Red
29*
Existing
Points
Expansion Module B
Expansion B
Pin #
See Wiring
Diagram
in Unit
Digital Compressor 2 SG
21
Digital Compressor 2 0V
20
*This indicates that you will be attaching to a 10” wire, not a pin. If
multiple CSTB’s, use the CSTB that powers the actuators.
Table 4. Analog Output Conversion Table

Installation Guide
IN-IC1-15
Title:
Jace to i-Controller REV.200 MPU (575V 40–70 Ton) Conversion
Flō Tech Support 888-598-1198 94-6DEC2021
7.8Wire Relay Output
Wire relay outputs based on table 5.
Existing
Points
i-Controller
i-Controller
Pin #
See Wiring
Diagram
in Unit
Supply Fan 1 (NO)
70
Heat Stage 1/Modulating
Heat Enable (NO)
72
Heat Stage 2 (NO)
73*
Heat Stage 3 (NO)
76*
Heat Stage 4 (NO)
77*
Reheat/Heat Reclaim 1 (NO)
84
Reheat/Heat Reclaim 2 (NO)
85*
CSTB1 +24VAC
71, 80,
86**, 90
*if equipped
**WARNING: For units equipped with refrigerant
reclaim, do not wire +24VAC to point 86. The dry
common from the refrigeration rack reclaim control is
connected to point 86.
Existing
Points
Expansion Module A
Expansion A
Pin #
See Wiring
Diagram
in Unit
ERV Wheel
(if applicable)
60
Power Exhaust
(if applicable)
62
CSTB1 +24VAC (if applicable
with ERV Wheel)
61
Existing
Points
Expansion Module B
Expansion B
Pin #
See Wiring
Diagram
in Unit
Supply Fan 2 (NO)
(if Applicable)
60*
Compressor 3 (NO)
62
Compressor 4 (NO)
63
CSTB1 +24VAC
61 & 64
*if equipped with 2 Supply fans
Table 5. Digital Output Conversion Table
7.9 Connect BACnet Network
Wire BACnet based on the following:
•Black wire RS485 Master –→94 (i-Controller)
•White wire RS485 Master + →95 (i-Controller)
•Shield wire RS485 Master GND →96 (i-Controller)

Installation Guide
IN-IC1-15
Title:
Jace to i-Controller REV.200 MPU (575V 40–70 Ton) Conversion
Flō Tech Support 888-598-1198 10 4-6DEC2021
8. Validate and Power Up the Unit
8.1Check Continuity
Once all connections are complete, using a multimeter,
verify points 1, 7, and 8 are not reading to earth ground.
Now check for shorts within the analog sensor connections
by measuring between points 7 and 8.
If you have any issues, please call Flō tech support at 1-888-
598-1198.
8.2Power Up the Unit
Turn on the unit disconnect and wait for the i-Controller
screen to display “CES”.
8.3Setting The Digital Phase Monitor (DPM)
Set the DPM to the following values:
1. Line Voltage = Set to Flō name plate voltage
2. Over/Under % = Set to 10%
3. Trip Delay = 5 Seconds
4. Restart Delay = 2 Minutes
5. Phase Imbalance = 5%
9. Test Unit Functionality
9.1Set Time and Date
From the Main Menu, press T5,(Network Info).
Press and verify the time is correct. If the correct
time is not displayed, set the time.
Use the to navigate to the hour or minute
fields.
With a field highlighted, press
ENTER
; the value will begin
blinking.
While the highlighted value is blinking, use the
and set the value. Press
ENTER
a second time to
accept changes.
The controller will automatically reboot after the date and
or time has been changed.
9.2Verify i-Controller Inputs on Visograph
Verify all installed sensors are present and displaying
accurate values.
From the Main Menu, press and hold down T7. While
holding T7 down, depress T1. This key combination unlocks
the Field Technician Options screen.
Press T6 to navigate to the IO Status screen. Press T1 to
access the Input Status screen. Press to view
additional pages.
9.3Calibrate Sensors
From the Main Menu, press and hold down T7. While
holding T7 down, depress T1 (Sensor Offsets).
Press to view additional pages.
Enter the offset(s) as necessary. Do not exceed ± 3°F for a
temperature sensor, ± 2°F for a dewpoint sensor or ± 3%
for a humidity sensor.
9.4Verify i-Controller Outputs
From the Main Menu, press and hold down T7. While
holding T7 down, depress T1. This key combination unlocks
the Field Technician Options screen.
Press T6 to navigate to the IO Status screen. Press T2 to
access the Output Status screen. Press to view
additional pages.

Installation Guide
IN-IC1-15
Title:
Jace to i-Controller REV.200 MPU (575V 40–70 Ton) Conversion
Flō Tech Support 888-598-1198 11 4-6DEC2021
9.5Dehumidification Test Mode
From the Main Menu, press and hold down T7,
while holding T7 down, depress T1 (Field Technician
Options).
From the Field Technician Options screen, press T2 (Test
Modes). Press T3 (2. Operational Tests).
Use to navigate to the Dehumidification
Test Mode Off and press
ENTER
.
When the "OFF" value begins blinking, press the to
change the value to "ON", then press
ENTER
.
Wait for 10-minutes, then terminate Dehumidification.
Terminate Dehumidification Test Mode (OFF)
From the Field Technician Options screen, press T2 (Test
Modes). Press T3 (2. Operational Tests).
Use to navigate to the Dehumidification
Test Mode “ON”, then press
ENTER
.
When the "ON" value begins blinking, press to
change the value to "OFF", then press
ENTER
.
Dehumidification mode is now turned “OFF”.
9.6 Heating Test Mode
From the Field Technician Options screen, press T2 (Test
Modes). Press T3 (2. Operational Tests).
Use to navigate to the Heat Test Mode Off
and press
ENTER
.
When the "OFF" value begins blinking, press the to
change the value to "ON" and press
ENTER
.
Wait for 10-minutes, then terminate Heating.
Terminate Heating Mode (OFF)
From the Field Technician Options screen, press T2 (Test
Modes). Press T3 (2. Operational Tests).
Use and to navigate to the Heating Test
Mode On and press
ENTER
.
When the "ON" value begins blinking, press the
change the value to "OFF", then press
ENTER
.
Heating mode is now turned “OFF”.
(A)
(B)
(C)
(D)
(E)
(F)
(G)
(H)
(I)
MODES OF
OPERATION
SUPPLY
FAN
COMP(S)
COND
FAN(S)
RECLAIM
HEATING
OUTDOOR
AIR
DAMPER
RETURN
AIR
DAMPER
BYPASS
AIR
DAMPER
INDICATE
PASS or
FAIL
DEHUM
ON
ON
ON
N/A
OFF
OPEN*
OPEN**
OPEN
HEATING
ON
OFF
OFF
N/A
ON
OPEN*
OPEN
OPEN**
* Damper will be in the OPEN position (typically 20 - 30% - OPEN 0.5” – 1.50”).
** This damper will be OPEN to its minimum position.
Table 6: Test mode unit status

Installation Guide
IN-IC1-15
Title:
Jace to i-Controller REV.200 MPU (575V 40–70 Ton) Conversion
Flō Tech Support 888-598-1198 12 4-6DEC2021
10. BMS Connectivity
The BACnet network connection needs to be established.
By default, the i-Controller BACnet Baud Rate is set to
19.2Kb/s. The MAC address and device number is set to
51. To adjust the address from the Visograph, perform
the following steps:
From the Main Menu, press T5,(Network Info).
Then, press the Options button.
Using the to navigate to the value that you
wish to change.
With a field highlighted, press
ENTER
; the value will begin
blinking.
While the highlighted value is blinking, use the
, set the value. Press
ENTER
a second time to
accept changes.
Once the BACnet address is changed, the controller must
be rebooted. Use the or buttons to navigate
to the controller reboot option.
Navigate to “Reboot Controller?” and set the value to
“YES”. The controller will reboot.
Figure 7. i-Controller Network Information Screen and pin
connections
Verify that BACnet is communicating. If it is not
communicating, contact the BMS supplier for additional
troubleshooting steps.

Installation Guide
IN-IC1-15
Title:
Jace to i-Controller REV.200 MPU (575V 40–70 Ton) Conversion
Flō Tech Support 888-598-1198 13 4-6DEC2021
11. Appendix:
11.1. i-Controller Layout
1. 24VAC Power (Point 9 and 1)
2. Analog Inputs
3. Digital Inputs
4. Digital Outputs
5. Analog Outputs
11.2. Expansion Board Layout
1. Expansion 24VAC Power (Point 9 and 1)
2. Expansion Analog Inputs
3. Expansion Digital Outputs