Griswold FlowCon FIT-G Owner's manual

Installation and Operation Instruction
Figure 2
Figure 3
Turn to
setting
1.0
Turn to
higher
settings
BMS
Figure 1
The FlowCon Energy FIT System is under the
name FlowCon FIT-G available with PICV
based on the FlowCon Green range. This FIT-G
instruction is used with:
• FlowCon Green.3 DN40-50 (1 1/2”-2”)
IMPORTANT: Do not disassemble. The
FlowCon Greeen.3 is built as a complete valve
and only trained FlowCon personnel can per-
form repair. Unauthorized disassembly may re-
sult in calibration defects or damaged part and
will void warranty.
It is essential that the actuator runs
linear control mode, 2-10V DC.
Setting and Installation
Prior to installing the FlowCon Green.3 (supplied
from factory in setting 4.5 due to calibration), the
system should be properly flushed. If it is not
possible to flush the system before Green.3 in-
stallation, please make sure to adjust setting to
5.0 (clockwise turning) and then flush.
The desired flow rate is hereafter set by adjust-
ing the valve (turn counter-clockwise to setting
1.0 and then clockwise up) with a special adjust-
ment key (i.e. figure 2). Range is between
1.0 and 5.0 ⚠ Do not overturn. Scale set-
ting is located on top of the valve numbered 1
to 5 including in-between positions indicated by
dots (one dot for every 0.1 position). The specific
position is defined by an indication mark on top
of the housing. Once flow is set, the required ac-
tuator may be applied.
A micrometer setting of 3.4 as illustrated in figure
3 corresponds to a maximum flow rate of: 2.86
l/sec (45.4 GPM).
FlowCon FIT-G DN40-50 (1 1/2”-2”)
1B95099 - 08/2022
This paper is a supplement to the FlowCon General Instruction
Latest release of any FlowCon material is available on www.owcon.com
Page 1 of 8

Accuracy: Greatest of either ±10% of controlled ow rate or
±5% of maximum ow rate.
FlowCon Green.3
Setting
16-600 kPaD · 2.3-87 psid
Nominal flow rate
l/sec l/hr GPM
0.528 1900 8.36 1.0
0.633 2280 10.0 1.1
0.738 2660 11.7 1.2
0.843 3030 13.3 1.3
0.947 3410 15.0 1.4
1.05 3790 16.7 1.5
1.16 4160 18.3 1.6
1.26 4540 20.0 1.7
1.36 4910 21.6 1.8
1.47 5280 23.2 1.9
1.57 5650 24.8 2.0
1.67 6010 26.4 2.1
1.77 6370 28.0 2.2
1.87 6730 29.6 2.3
1.97 7080 31.2 2.4
2.06 7430 32.7 2.5
2.16 7780 34.2 2.6
2.25 8120 35.7 2.7
2.35 8450 37.2 2.8
2.44 8780 38.6 2.9
2.53 9100 40.0 3.0
2.61 9410 41.4 3.1
2.70 9720 42.8 3.2
2.78 10000 44.1 3.3
2.86 10300 45.4 3.4
2.94 10600 46.6 3.5
3.02 10900 47.8 3.6
3.10 11100 49.0 3.7
3.17 11400 50.2 3.8
3.24 11600 51.3 3.9
3.30 11900 52.3 4.0
3.37 12100 53.3 4.1
3.43 12300 54.3 4.2
3.48 12500 55.2 4.3
3.54 12700 56.0 4.4
3.59 12900 56.8 4.5
3.64 13100 57.6 4.6
3.68 13200 58.3 4.7
3.72 13400 58.9 4.8
3.76 13500 59.5 4.9
3.79 13600 60.0 5.0
Figure 4
Fitting and Re-tting the Actuator
The suitable actuator types are FlowCon FH and
and FH.1 (failsafe). These are electrical modulat-
ing actuators.
Do not connect power to the actuator un-
less the actuator is already fitted on the
valve and NEVER install the actuator in
closed position – this may damage the
valve. Actuator is supplied in open posi-
tion to ensure easy commissioning of the
system.
Mount the actuator on the valve and finger tight-
en the connection union. Do not use additional
tools. In case the actuator will have to be removed,
it is recommended to electrically open the actua-
tor for easier removal. Hereafter finger loosen the
connection union. Again, no need for additional
tools. Please make sure that the actuator is elec-
trically opened, before re-fitting it on the valve.
This paper is a supplement to the FlowCon General Instruction
Latest release of any FlowCon material is available on www.owcon.com
FlowCon FIT-G DN40-50 (1 1/2”-2”)
1B95099 - 08/2022
Page 2 of 8



360º
Figure 5
Orientation
Upside-down installation is allowed along with
the standard horizontal and vertical installation
(figure 5).
Intelligent Interface Connection
The FlowCon Energy FIT System includes the
state-of-the-art FlowCon Intelligent Interface
which is the controller of the FIT System. The In-
telligent Interface is compatible with 24V AC/DC
and calculates the BTU and displays the data
via Bluetooth® on any Android or iPhone mobile
device and includes fully integrated BACnet com-
munication to and from the BMS.
The Intelligent Interface also includes 1 month
and 1 year of accumulated BTU data stored.
The FIT System will automatically detect if it is
installed in a heating or in a cooling system as
it will add T1 and T2 readings and cross-check
the result. If T1+T2<135°F the system is seen as
a cooling system and if T1+T2≥135°F it will be
considered a heating system.
Do not remove cover from Intelligent In-
terface. Opening cover will void warranty.
Sensor Kit Connection
The FlowCon Energy FIT System includes two
temperature sensors that should be installed as
close to the coil as possible, within 0.3-3 meter
(1-10 ft). T1 should be installed on the inlet of the
coil and T2 on the outlet of the coil. Sensors are
to be installed in 1/4” ISO ports. The tempera-
ture sensors connect via quick-connectors to the
grey cables from the Intelligent Interface. Cable
length is different for T1 and T2. T1 connects to
the longer cable (3 meter / 9 ft) and T2 to the
shorter (1 meter / 3 ft).
Optionally, the FIT System may include two
pressure sensors that must be installed on or
close to the PICV valve. P1 should be installed
on the inlet of the PICV and P2 on the outlet. The
pressure sensors connect via quick-connectors
to the black cables from the Intelligent Interface.
P1 and P2 have identical cable length (1 meter /
3 ft), but P1 cable will be marked with a white
sticker.
Be aware to connect according to wiring dia-
grams page 4 and 5 to avoid loosing warranty.
FlowCon App
Download the FlowCon App from AppStore or
GooglePlay and take full advantage of the FIT
system. Information on ΔT, ΔP, flow and BTU is
transferred.
FlowCon FIT-G DN40-50 (1 1/2”-2”)
1B95099 - 08/2022
This paper is a supplement to the FlowCon General Instruction
Latest release of any FlowCon material is available on www.owcon.com
Page 3 of 8

Wiring Instructions

Please find the Quick Start-Up guide
for proper set-up of Baud rate and
MAC-address and FIT configuration
BEFORE connecting FlowCon FIT
to BMS BACnet
FlowCon Intelligent Interface
White
Black
Red
Grey
NOT IN USE
Grey
Input signal
2-10V DC, <0.5mA
Signal groundSignal ground
Feedback signal
2-10V DC
BlackWhite
Black
Red
Blue Green Brown Yellow Grey
Controller
Black
Red
Power 24V AC/DC
Ground/common
FlowCon PICV
BMS
FlowCon PICV
FlowCon
Pressure
Sensor P2
FlowCon
Pressure
Sensor P1
FlowCon
Temperature
Sensor T2
FlowCon
Intelligent
Interface
FlowCon
Temperature
Sensor T1





This paper is a supplement to the FlowCon General Instruction
Latest release of any FlowCon material is available on www.owcon.com
FlowCon FIT-G DN40-50 (1 1/2”-2”)
1B95099 - 08/2022
Page 4 of 8



P1P2
FlowCon Pressure Sensors
OPTIONAL
FlowCon Intelligent Interface
Black
Red
Controller
Grey
BlackWhite
Black
Red
White Grey
Black
Red
Power 24V AC/DC
Ground/common
NOT IN USE
FlowCon Temperature Sensors
FlowCon Intelligent Interface
T2 T1
Black
Grey
Red
Controller
BlackWhite
Black
Red
White Grey
Black
Red
Power 24V AC/DC
Ground/common
NOT IN USE

BMS
B-
Signal GND
A+
FlowCon Intelligent InterfaceFlowCon Intelligent Interface
Black
White BACnet I
Black
Red
Red
Controller
Grey
Black
White Grey
Black
Red
Power 24V AC/DC
Ground/common
NOT IN USE
FlowCon FIT-G DN40-50 (1 1/2”-2”)
1B95099 - 08/2022
This paper is a supplement to the FlowCon General Instruction
Latest release of any FlowCon material is available on www.owcon.com
Page 5 of 8

Start-up Sequence
When power to the actuator is turned on, the
actuator will automatically calibrate to determine
closing point. Hereafter it will proceed to normal
operation mode (according to control signal).
For the failsafe version (FH.1), capacitor charg-
ing will be prioritized (max. 215 sec depending
on capacitor energy level) during start-up and
re-powering. After completion of charging mode
followed by calibration mode, the actuator will
proceed to normal operation mode.
Auto Cycle Sequence
Auto Cycle can be activated during commission-
ing. It prevents the valve from jamming when the
valve is not moved for a longer period of inactiv-
ity. By moving DIP switch #1 from OFF to ON,
Auto Cycle is activated. Actuator will then per-
form 50% stroke cycle every 3 weeks if no stroke
movement has occurred.
Manual Override (FlowCon FH)
Before performing manual override, please turn
off the power supply. Lift the silicone cap on the
top of the actuator to get access to manual over-
ride. Manual override is performed by a 4 mm
(~5/32”) hex key. Clockwise turning will open the
valve and counter-clockwise turning will close
the valve.
Electrical Override (FlowCon FH.1)
By moving DIP switch #6 from OFF to ON, elec-
trical override is activated and the actuator will
open valve fully. During electrical override the
LED indicator will blink red and green. When DIP
switch #6 is moved back to OFF, the actuator will
re-calibrate and thereafter go into normal opera-
tion mode. Electrical override is performed with
power supply on.
Failsafe Mode (FlowCon FH.1)
When power is lost, the actuator will go into fail-
safe mode after a few seconds, mandatory that
capacitor charging and start-up sequence are
completed. The actuator will perform failsafe
action (open or close) and stay in failsafe final
position until return of power. Upon power, the
actuator remains in the final failsafe position until
charging mode is reached (max. 215 sec). Here-
after the actuator will return to normal operation
mode.
This paper is a supplement to the FlowCon General Instruction
Latest release of any FlowCon material is available on www.owcon.com
FlowCon FIT-G DN40-50 (1 1/2”-2”)
1B95099 - 08/2022
Page 6 of 8

FH FH.1
Normal operation mode Full on green Full on green
Charging mode (200 sec) n/a Blinking red
Calibration mode (closing point adjustment) Blinking green Blinking green
Electrical override mode n/a
Blinking red/green
Failsafe mode n/a OFF
Perpetual failure mode Full on red Full on red
LED Status
The LED indicator is visible through the dark colored transparent connection cover. The LED indica-
tion will give the following statuses.
DIP
switch Function ON Function OFF
#6 Re-calibration Re-calibration
#5 No function No function
#4 Equal percentage Linear
#3 Normally Open Normally Closed
#2 Control signal 2-10V Control signal 0-10V
#1 Auto cycle ON Auto cycle OFF
6
5
4
3
2
1
%%

%%

%%

%%

%%

%%

%%

%%

%%

%%

DIP
switch Function ON Function OFF
#6 Electrical override ON Electrical override OFF
#5 Failsafe open Failsafe close
#4 Equal percentage Linear
#3 Normally Open Normally Closed
#2 Control signal 2-10V Control signal 0-10V
#1 Auto cycle ON Auto cycle OFF
6
5
4
3
2
1
% %
% %
% %
% %
% %
% %
% %
% %
% %
% %
% %
% %
DIP Switch Settings
The valve functions are set on DIP switches found under the connection cover. PCB mounted electri-
cal components will not be directly exposed when DIP switches are to be set. Factory setting for all
switches is OFF.
FlowCon FH Actuator
FlowCon FH.1 Actuator
FlowCon FIT-G DN40-50 (1 1/2”-2”)
1B95099 - 08/2022
This paper is a supplement to the FlowCon General Instruction
Latest release of any FlowCon material is available on www.owcon.com
Page 7 of 8

BACnet programming of
FlowCon Intelligent Interface
In this instruction:
AV = Analog Value
BV = Binary Value
MSV = Multi-State Value.
Default values are underlined.
Please also see FlowCon FIT BACnet PICS.
After completing Quick Start-up Sequence set-
ting Baud Rate (MSV.1), MAC Address (MSV.2)
and FIT Configuration (MSV.5) and re-connect-
ing power at specific location start by selecting
your PICV valve in MSV.7:
1 = Green.0 2 = Green.1
3 = Green.2 4 = Green.3
Hereafter trim the pressure sensors (if a solu-
tion with pressure sensors is selected). To trim
the pressure sensors, please check via BACnet
AV.13 (Pressure1) and AV.14 (Pressure2) which
show simple read-out from the two pressure
sensors. Before installation in the system or
withdrawn from the system, the pressure sen-
sors should both read zero (= related to atmo-
spheric pressure). Any deviation from zero shall
be deducted in AV.16 (Press1Correct) and AV.17
(Press2Correct) respectively. If AV.13 reads 10
and should be zero, then value in AV.16 is en-
tered to -10. It is also possible to calibrate based
on another known pressure entity than ATM.
Select flow unit in MSV.39:
1 = l/sec 2 = GPM 3 = l/hr
Select pressure unit in MSV.6:
1 = kPa 2 = psi
Select temperature unit in MSV.3:
1 = °C 2 = °F
Finally select FIT control mode in MSV.4:
1 = ΔT Control
2 = Comfort Control
3 = Smart Control
When set to direct ΔT Control, FlowCon FIT will
work as an energy valve and regulate based
on ΔT target alone. When set to direct Comfort
Control, FlowCon FIT will work as a PICV for
room comfort control. When set to Smart Con-
trol, FlowCon FIT will prioritize room tempera-
ture setting and within designated range, opti-
mize the ΔT.
Provide analog control signal in AV.141 (0% to
100%).
Condition of the FIT System
through BACnet
Besides checking object values already described,
the following information is available through
BACnet. Please also see FlowCon FIT BACnet
PICS:
Check the current flow rate (not measured)
in AV.68. To know whether the valve is fully
closed, please check the motor position in AV.98
(0%=fully closed). Set max.flow can be changed
or confirmed in AV.62.
Check P1, P2 and ΔP in AV.13, AV.14 and AV.15.
ΔP alarm can be seen in BV.1.
Valid output only on a solution with pressure
sensors.
Check Water Temperatures T1, T2 and ΔT
in AV.1, AV.2 and AV.3. ΔT Target is changed
or confirmed in AV.4. ΔT Target Deadband is
changed in AV.5
Check Room Temperature in AV.6 and Room
Temperature Target in AV.7. Room Tempera-
ture Deadband is changed in AV.8. Control in-
terval for all water- and room temperatures is set
in AV.9
Check current BTU, accumulated BTU for the
last month and accumulated BTU for the last
year in AV.10, AV.11 and AV.12.
This paper is a supplement to the FlowCon General Instruction
Latest release of any FlowCon material is available on www.owcon.com
FlowCon FIT-G DN40-50 (1 1/2”-2”)
1B95099 - 08/2022
Page 8 of 8