REC Temovex Blue 2 User manual

Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
1
INSTALLATION & ADJUSTMENT
OPERATION & CONTROL
Exhaust air filter, article No: G10125
Supply air filter, article No: G10126
Technicians Manual

CONTENTS
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
2
Page
Installation & Adjustment
Safety and Security 3
Receipt of Delivery 3
Installation 3
Mounting 3
Installation of Water-Resistant Substrate 3
Anti-tip Protection 3
Condensate Drain 3
The Duct System 3
Silencing 3
Placing of Temperature Sensors 4
Insulation 4
Open Fireplace 4
Power connection 4
Access to connection terminals 5
Circuit Diagram 6
Terminal Description 7
Connection Options 8
Fireplace Button
ULS, KAVK, CP Heat Etc.
Modbus
Remote Panel - With Display
Remote Panel 3-Position
Remote Panel - Easy (TG-R4)
Internet
Operation & Control
2. Menu table configuration 12
2.1. Control function 18
Control Functions
Cascade Control
Setpoint Adjustment
Room Sensors
2.2. Demand Control 18
Activate
Temperature control
CO2 control
Moisture control
2.3. Fan Setup 19
Fan control
Setting fan speeds
Fan delay
2.4. Temperature control 19
Setting the controllers
What are P and I
Supply air controller
Room controller
Exhaust air controller
Zone control
Pre-heat controller
2.5. PID output 20
Heating, Bypass, Cooling
Pre-heater
Duct heater
2.6. ECO/ECO2 20
ECO-mode
ECO2-mode
ECO adjustment
Fault safe mode
Activate ECO2 cooling
Temp diff.
Temperature conditions for forcing
Screen view at boosting and ECO
Fan curve at ECO/ECO2
2.7. Heater 22
Type of heater
Electric heater
Water heater
Anti-freeze function
Exercise of valve
2.8. Defrosting 23
Outdoor temp limits 1
During defrost 1
Outdoor temp limits 2
During defrost 2
Outdoor temp limits 3
During defrost 3
Condition to abort defrost
2.9. Bypass 24
Bypass dumper´s running time
Outdoor temp. limit of open
Activate ramptime
2.10.Cooling recovery 24
2.11.Night cooling 25
Extended running time.
Boost cooling
Conditions night cooling
2.12.Forced cooling 26
2.13.Timer 26
2.14.KAVK (Condensation boiler) 26
2.15.I/O configuration 26
Analog inputs
Digital inputs
Priority order
Timer
Stove mode
Digital outputs
Inverting digital outputs
Analog outputs
2.16.Modbus 28
2.17.TCP/IP 28
2.18.EXOline address 28
2.19.Remote Panel 29
2.20.Setpoint Adjustment TG-R4 29
2.21.Activate Exhaust fan 29
2.22.Filter Timer 29
2.23.Cloudigo 29
2.24.Save Settings 29
2.25.User Menu 29
2.26.Zones 29
Enable Zones
Remote Panel Configuration
Temperature Menus
2.27.Change Alarm Class 30

INSTALLATION & ADJUSTMENT
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
3
Safety and Security
Please read this manual carefully. Pay special
attention to the safety text marked with the
exclamation mark above.
Receipt of Delivery
Check that the number of packages matches the
consignment note and that there is no transport
damage. The ventilation unit must be stored
indoors.
If possible, the unit should be kept lying down
to minimize the risk of personal injury in case of
overturning. Pay special attention to this if children
are nearby.
Installation
Work performed by the layman can impair the
performance of the ventilation unit and result in
injury to person or property. Incorrectly adjusted
units will not achieve the desired benefits such as
adequate air quality and maximized energy savings.
The unit is heavy. Edges and corners that you do
not usually come in contact with can be sharp. Use
gloves when moving the unit.
Keep an eye on children. An unassembled
unit can easily tip over under abnormal loads.
Mounting
The ventilation unit is mounted upright in the utility
room, laundry room or the like. The unit is designed
to stand in frost-free space, which is extra important
when using condensate drains.
Ensure that there is a stable and level surface on
the installation site. If the unit is placed on wooden
floors or other moisture-sensitive materials, the unit
must be placed on a water-resistant substrate (type
Temovex Art. No. Q100490) to prevent marks and
moisture damage if possible. leakage or
condensation. (See next paragraph for assembly.)
It is an advantage if the unit can be placed at least
10 mm away from the wall. This is to minimize the
risk of muffler noise. We recommend that the walls
of surrounding rooms also be soundproofed. These
precautions should be maintained despite the fact
that Temovex units are generally very quiet. The
unit is equipped with adjustable rubber feet and well
balanced fans, to avoid vibration.
The unit should be installed in such a way that it is
easy to access for maintenance and inspection.
Make sure the door at the front can be fully opened.
The unit must be placed so that it cannot be flushed
with water during operation. As an option, the unit
can be provided with protection that allows the
installation to withstand IP class X5.
Installation of Water-Resistant Substrate
Q100490
The ventilation unit is often installed in a corner or
next to another cabinet. In this case, there are two
sides to support the Water-Resistant Substrate. The
third side is created with suitable wooden strip
which is attached to the floor with eg double-sided
adhesive tape, glue, screw etc. Cut the Water-
Resistant Substrate to a width of 545mm (485mm +
30mm fold in each side). Cut the same amount on
each side. Otherwise, follow the instructions that
come with the underlay.
Anti-tip Protection
If it is judged that there is a risk that the unit may tip
forward, there is a tip guard as an option. This is
then fixed to the back of the unit and screwed during
installation in the wall behind the unit.
Condensate Drain
The unit is equipped with a condensation drain at
the bottom of the unit. This should be connected to
a drain or routed to a floor well. Make sure that the
condensation line is placed far enough down in the
floor well, otherwise it can draw cold air from it. The
condensation line does not
need to be fitted with a
water trap. The condensate
drain has to be connected
when the unit is installed. If
the unit is equipped with
condensation boiler (KAVK) no external connection
is needed.
The Duct System
For shorter adaptations between, for example a roof
hood and the duct system, a flexible duct called
"Drasuten" can advantageously be used.
Tumble dryers and drying cabinets must not be
connected directly to the duct system. “Dragavbrott”
shall be used.
Silencing
Silencers dimensioned for the installation should be
fitted both for the supply air and exhaust air, either
directly onto the Temovex unit, or to the duct system
as close to the unit as possible. Under certain
conditions, silencers on the outdoor air duct as well
as extract air duct may be necessary.
!
!
!

INSTALLATION & ADJUSTMENT
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
4
Placing of Temperature Sensor
The four duct sensors are color-marked at both
ends as follow:
Outdoor air = blue
Supply = red
Extract = green
Exhaust = yellow
At delivery, all temperature sensors are electrically
connected to the control system. The extract and
exhaust air sensors are also pre-mounted in the
AHU's respective air ducts.
The outdoor air and supply air sensors must be
mounted during installation in respective duct.
The supply air sensor should be placed in the
supply air duct, at least 0,6 m from the heater to
avoid direct heat radiation, and after the first bend if
possible, where the temperature is more
homogeneous.
The outdoor air sensor should be placed as far from
the unit as possible (as far as the cable allow).
Remember to seal the holes carefully.
If the unit is equipped with a water battery, the anti-
freeze sensor is also pre-mounted and connected.
If a room sensor is used, it should be placed approx.
1,4 m above the floor in the living room, prefereably
on an interior wall.
Insulation
Outdoor air and extract air ducts in heated spaces
must be insulated against condensation along their
entire length, using an insulation sleeve minimum
PE30. The diffusion barriers are sealed with
ventilation tape.
Supply and exhaust air ducts in warm rooms do not
need to be insulated against condensation,
however, heat insulation may be appropriate.
Decided on a case by case basis.
If the supply and exhaust air ducts are placed in
cold or unheated spaces, they shall be heat
insulated. If insulation mat is used, a total thickness
of at least 120mm should be achieved. The
insulation should be shared in two layers with
overlapping joints.
If placement in loose wool, the cover layer over the
ducts should be at least 150 mm.
Open Fireplace
Most modern fireplaces and the like have a
separate outdoor air connection which provides the
combustion chamber with combustion air. If this is
not available/possible, a separate outdoor air
diffuser needs to be fitted. The stove consumes
between 150-300 m3/h.
To make it easier to start the stove (ignition, the
fireplace door is open), the Temovex unit can be
equipped with the option "stove function".
Power connection
The AHU is provided with a grounded plug.
Connect the plug to an earthed 1-phase socket
(230 VAC / 10 A).
Connection at the top of the unit.

INSTALLATION & ADJUSTMENT
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
5
Access to connection terminals
Cable gland for
external connection
Analog inputs
(connection of room
sensors etc.)
Digital outputs (connection of
outdoor air dampers, alarms etc.)
Analog Outputs (connection of
actuators for water-based heat
and cooling)
3. Unscrew the upper plastic cover
(4 screws) and release the locking lug in
the lower right corner with a blunt knife
or other flat object.
1. Pull the ring to
release the door.
2. Remove the filter
hatch.
4. The PCB is now easily accessible for installation
of desired functions.
Digital inputs.
(Connection of switches for
"away function", increased
fan speed etc.)
LEDs that indicate
voltage on the
board.
Air nipples for control of
pressure drop in the ducts.

INSTALLATION & ADJUSTMENT
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
6
Circuit Diagram
Main card
I/O card Status LED

INSTALLATION & ADJUSTMENT
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
7
Terminal Description
General information
Most connections are made on the circuit boards. There are
also texts that indicate where different things should be
connected. All terminals have a J xxx no. indicated and a small
triangle at pin 1.
When stated below, for example, J26/1,2 is meant to be
connected to terminal J26 on pins 1 and 2.
In some cases, there are also signal markings on the card.
Room sensor (Terminal J33/7.8)
If room sensor is to be used, keep in mind that room control
must be selected in the configuration of the system.
External cooling (Terminal J206/1,2,3)
The system also has ability to handle an external water-cooling
battery, e.g., natural cooling from boreholes.
The cooling battery is controlled via an external valve (0 - 10 V).
After heater water (Terminal J206/4,5,6)
The water heater is controlled via an external control valve
0-10V (Possibly is the cable already connected at delivery).
Temperature sensor (Terminal J32)
Temperature sensors (PT1000) for outdoor air, supply air,
extract air and exhaust air are already connected at delivery.
Freeze protection (Terminal J33/5.6)
To prevent freezing of the water battery in the case of water
heating, a freeze protection sensor (temperature sensor) is
placed on the return line from the water battery.
Remote panel (Terminal J34)
Terminal for connecting a remote control (optional) with among
other things alarm indication and a switch for ECO mode.
NOTE! When using ECO Remote, DO6 must be configured for
Normal flow, DO7 for Sum alarms and DI2 to ECO.
Fans power supply (Terminal J15 and J16)
Connection terminals for power supply to the fans. These are
already connected at delivery.
Fans control signals (Terminal J13 and J14)
Connection terminals for control signals to the fans. These are
already connected at delivery.
Bypass (J12)
Connection terminal for the bypass damper. The cable is
already connected at delivery.
Electric heater power supply (J5)
Pin 1 PE, pin 2 neutral, pin 3 phase.
Electric heater overheat protection (Terminal J10)
Electric heater triac connection (J7, J8, J9)
Electric preheater control signals (Terminal J26)
In case of electric preheating, J28 should be in preheat position.
Otherwise "DO4". (In case of electric preheating, DO4 cannot be
used).
Electric zone heater control signals (Terminal J29)
In the case of electric zone heating, J31 must be in the "zone
heat" position. Otherwise "DO5".
After heater water (wax actuator) (Terminal J25)
Preheater water (wax actuator) (Terminal J27)
Zone heater water (wax actuator) (Terminal J30)
DI1, DI2, DI3 and DI4 (Terminal J204 and J205)
There is, as an option, the possibility to connect four external
switches which at closing change the fan speeds according to
the choices made during configuration. Appropriate flows are
preset but can be changed by a qualified installer via the control
panel.
For available choices see section "Operation & Control".
Option terminal filter guard (J204.1 and J205.1)
Relay output DO4 (Terminal J20)
This output has a closing function for 230VAC and is suitably
used for outdoor air dampers, KAVK or other 230VAC
consumers. For configuration see section "Operation &
Control".
Relay output DO5 (Terminal J21)
This output has a free closing function that can be used for
either 230VAC or 24V. For configuration see section " Operation
& Operating".
Relay output DO6 (Terminal J22)
This output has a free closing function that can be used for
either 230VAC or 24V. For configuration see section "Operation
& Control".
Relay output DO7 (Terminal J23)
This output has a voltage independent NO-NC function that is
configured as a sum alarm at delivery.
It is quite possible to use the output for other functions, but
then the status LED above the door does not work, since it is
connected to the same output, but with a separate relay.
If the output is to be used for anything other than a sum alarm,
we recommend disconnect the LED so as not to get misleading
information. This is easily done by removing the cable to the
LED.
For configuration see section "Operation & Control".
LED output status LED. (Plint24)
Mains voltage (Terminal J2, J3, J4)
230VAC, 50Hz
Chassis (Terminal J1)
Ground connection to chassis
Socket low voltage (Terminal J11.)
Power outlet (Terminal J17, J18, J19)

INSTALLATION & ADJUSTMENT
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
8
Connection Options
Connection of Fireplace Button (24V)
Connection of ULS, KAVK, CP-heating etc. (230V)
The selected digital input is configured to
fireplace
mode.
In this example, input 1 is selected.
The selected digital output is configured to fireplace
mode.
In this example, DO5 is selected.
When configured to DO4.
When configured to DO5.

INSTALLATION & ADJUSTMENT
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
9
Connection Modbus
See also section 2.16 of this manual.
Connection Remote Panel - With Display
You cannot have both Modbus and remote panel. To connect a remote panel with a display, Modbus
communication must be deactivated. Contact REC.
Remote panel with display can be connected according to below.
Modbus
B
A
Remote panel PCB/DUC
10 J11/1
11 J11/2
42 P1/A51
43 P1/B50

INSTALLATION & ADJUSTMENT
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
10
Remote panel - 3-position
Please note! The configuration of inputs and outputs should be
in this order for the display to work:
DO6 - Normal, DO7 - Alarm, DI1 - ECO, DI2 - Forc
Remote Panel - Easy (TG-R4)
Remote
panel PCB
1 J33/8
2 J33/7
3 J33/4
4 J33/3

INSTALLATION & ADJUSTMENT
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
11
Internet connection (Cloudigo)
An internet cable is plugged into the unit and extended outside.
Connect an internet cable between the adapter and your router.

OPERATION & CONTROL
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
12
For initial information see the User Manual!
Start at Authorization and log in as Technician with code 2222.
2. Menu table configuration Not relevant for Blue (should not be selected)
Parameter Standard setting Changed setting of this unit
2.1. Control function
2.1.1. Control function SA control ☐ODT comp. SA control, ☐Casc. room control,
☐Casc. EA control
2.1.1.1. When cascade control max/min SA setpoint
Max 52,0 ˚C __________ ˚C (0 - 150 ˚C)
Min 12,0 ˚C __________ ˚C (0 - 150 ˚C)
2.1.2. Setpoint adjust.
Min -3,0 ˚C __________ ˚C (-10,0 –0,0 ˚C)
Max 3,0 ˚C __________ ˚C (0,0 –10,0 ˚C)
TG-R4 (Display of current setpoint)
Ext. display (Display of current setpoint)
2.1.3. Room sensor (displayed at
Casc. room control and Remote panel) Only analog input ☐Only external display, ☐Mean value
2.2. Demand control (only displayed with SA control)
2.2.1. Activate
Temp.-control No ☐Yes
2.2.1.1. Extract air temp. control
Setpoint. 22,0 ˚C __________ ˚C (0 - 50 ˚C)
Control mode Cool ☐Heat
2.2.1.1.1. PI-settings temperature
P-band 33,0 ˚C __________ ˚C
I-time 100,0 sec __________ sec
CO2-control No ☐Yes
2.2.1.2. CO2-control
Setpoint 1000 ppm __________ ppm (0 –2000 ppm)
2.2.1.2.1. PI-settings CO2
P-band 100 ppm __________ ppm
I-time 100,0 sec __________ sec
Humidity-control No ☐Yes
2.2.1.3. Humidity-control
Setpoint 60 % RH __________ % RH (0 –100 % RH)
2.2.1.3.1. PI-settings humidity
P-band 33,0 % RH __________ % RH
I-time 100,0 sec __________ sec
2.3. Fan setup
2.3.1. Fan control
Fan control Fixed Speed ☐Pressure, ☐Flow
2.3.2. Fan speeds
2.3.2.1. Supply air fan
Min 20 % __________ %
Normal 50 % __________ %
Boost 80 % __________ %
Kitchen 80 % __________ %
Stove 80 % __________ %
Night cool 50 % __________ %
Max 100 % __________ %
Fire 0 % __________ %
2.3.2.1.1. Delay SA fan
Start 0 sec __________ (0 –3600 sec)
Stop 60 sec __________ (0 –3600 sec)
Ramp time 1.00 V/s __________ V/s
2.3.2.2. Extract air fan
Min 25 % __________ %
Normal 55 % __________ %
Boost 85 % __________ %
Kitchen 20 % __________ %
Stove 20 % __________ %

OPERATION & CONTROL
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
13
Night cool 55 % __________ %
Max 100 % __________ %
Fire 100 % __________ %
2.3.2.2.1. Delay EA fan
Start 0 sec __________ (0 –3600 sec)
Stop 0 sec __________ (0 –3600 sec)
Ramp time 1.00 V/s __________ V/s
2.4. Temperature control
2.4.1. SA control
P-band 33,0 ˚C __________ ˚C
I-time 100,0 sec __________ sec
2.4.2. Room control (is displayed if Casc. room control is selected)
P-band 100,0 ˚C __________ ˚C
I-time 300,0 sec __________ sec
2.4.3. EA control (is displayed if Casc. EA control is selected)
P-band 100,0 ˚C __________ ˚C
I-time 300,0 sec __________ sec
2.4.4. SA control Livingroom (is displayed if Zone control is selected)
P-band 33,0 ˚C __________ ˚C
I-time 100,0 sec __________ sec
2.4.5. Room control Livingroom (is displayed if Zone control is selected)
P-band 100,0 ˚C __________ ˚C
I-time 300,0 sec __________ sec
2.4.6. Preheat control (is displayed if Pre Heater is selected)
P-band 33,0 ˚C __________ ˚C
I-time 100,0 sec __________ sec
2.5. PID output (no settings)
2.5.1. PID output
Heating xxx %
By-pass xxx %
Cooling xxx %
2.5.2. PID output preheater (is displayed if preheater is selected)
Damper xxx %
Electric xxx %
2.5.3. PID output duct heater (is displayed if zone control is selected)
Heating xxx %
Setpoint change x,x ˚C
2.6. ECO/ECO2 (is displayed if ECO and/or ECO2 is selected under system settings)
2.6.1. Activate ECO2 cooling (is
displayed if ECO2 is selected
under system settings)
Yes ☐No
2.6.2. Temp. diff.
Heat 1,0 ˚C __________ ˚C (0 –10,0 ˚C)
Cool 2,0 ˚C __________ ˚C (0 –10,0 ˚C)
Dead band 0,5 ˚C __________ ˚C (0 –1,0 ˚C)
2.6.3. Temp diff for increase to boost
Heat: TL>FL+ 1,0 ˚C __________ ˚C (0 –10,0 ˚C)
Cool: TL<FL- 1,0 ˚C __________ ˚C (0 –10,0 ˚C)
2.6.4. Alarm delay
Warning temperature deviation 300 sec __________ sec
2.7. Heater
2.7.1. Type of heater Electric ☐Water (PWM), ☐No heater, ☐Water (0-10V)
2.7.1.1. When selecting "Electric"
Period 60 sec __________ sec (0 –600 sec)
2.7.1.2. When selecting "Water (PWM)"
Frost protection
Start temp. 13,0 ˚C __________ ˚C (13 –50,0 ˚C)
Exercise valve No ☐Yes
Day Monday __________ (Monday - Sunday)
Hour 0 __________ (0 - 23)
Valve runtime 180 sec __________ sec
Period 10 sec __________ sec (0 –600 sec)
Reg. area 67 - 87 % __________ - __________ % (0 –100 %)
2.7.1.3. When selecting "Water (0-10V)"
Frost protection 13,0 ˚C __________ ˚C (13 –50,0 ˚C)

OPERATION & CONTROL
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
14
Start temp.
Dead band valve 0,5 % __________ % (0 –50,0 %)
Exercise valve No ☐Yes
Day Monday __________ (Monday - Sunday)
Hour 0 __________ (0 - 23)
Valve runtime 180 sec __________ sec
2.8. Defrost
2.8.1. Outdoor temp limits -3,0 ˚C to -5,0 ˚C ☐______ ˚C to ______ ˚C
Interval 1,00 h ☐__________ h
Defrost time 5 min ☐__________ min
2.8.1.1. During defrost
Bypass 100 % ☐__________ % (0 –100 %)
TF -5 % ☐__________ % (-100 –0 %)
FF +5 % ☐__________ % (0 –100 %)
2.8.2. Outdoor temp limits -5,0 ˚C to -10 ˚C ☐______ ˚C to ______ ˚C
Interval 1,00 h ☐__________ h
Defrost time 15 min ☐__________ min
2.8.2.1. During defrost
Bypass 100 % ☐__________ % (0 –100 %)
TF -5 % ☐__________ % (-100 –0 %)
FF +5 % ☐__________ % (0 –100 %)
2.8.3. Outdoor temp limits < -10 ˚C ☐______ ˚C
Interval 0,50 h ☐__________ h
Defrost time 15 min ☐__________ min
2.8.3.1. During defrost (is displayed if SA Control is selected)
Bypass 100 % ☐__________ % (0 –100 %)
TF -50 % ☐__________ % (-100 –0 %)
FF 0 % ☐__________ % (0 –100 %)
2.8.3.2. During defrost (is displayed if EA Control or Room Control is selected)
Bypass 100 % ☐__________ % (0 –100 %)
TF -10 % ☐__________ % (-100 –0 %)
FF +10 % ☐__________ % (0 –100 %)
2.8.4. Condition to abort defrost
Extract-Exhaust <2 ˚C ☐__________ ˚C
2.9. Bypass
2.9.1. Bypass damper’s
running time 45 s __________ s (0 –300 s)
2.9.2. Bypass outdoor temp. limit for open
Outdoor temp.. > 0,0 ˚C __________ ˚C
Hysteresis 1,0 ˚C __________ ˚C
2.9.3. Activate ramptime Only defrosting ☐Not active, ☐Always active
Ramptime: 180 s __________ s
2.10. Cold air recovery
Recover cold air Yes ☐No
Conditions to start recover
Outdoor temp. >EA + 2,0 ˚C __________ ˚C (0,0 –20,0 ˚C)
2.11. Night cooling
Activate night cooling No 22:00 –06:00 ☐Yes __________ - __________ (00:00 –24:00)
After time 4 hours __________ h (0 –24 h)
Reset No ☐Yes
2.11.1. Conditions night cooling
Day OD >22 ˚C __________ ˚C (0 –30 ˚C)
OD temp 10 ˚C __________ ˚C (0 –30 ˚C)
Room temp >18 ˚C __________ ˚C (10 –30 ˚C)
2.12. Forced cooling
Activate forced cooling on SA
control No 00:00 –24:00 ☐Yes __________ - __________ (00:00 –24:00)
Setpoint Exhaust air 28,0 ˚C __________ ˚C (10,0 –40,0 ˚C)
Hysteresis 1,0 ˚C __________ ˚C
2.13. Timer

OPERATION & CONTROL
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
15
The timer controls Min flow ☐ECO, ☐Boost, ☐Max, ☐AHU On/Off
2.14. KAVK/Condensation boiler (is displayed if “KAVK”is configured on any digital output)
Start temp 5,0 ˚C __________ ˚C (0,0 –30,0 ˚C)
Stop temp 10,0 ˚C __________ ˚C (0,0 –30,0 ˚C)
2.15. I/O configuration (ATTENTION! if the function corresponding to the desired selection is not configured, the selection returns when you leave the menu)
2.15.1. Analog inputs
UI1 Not active ☐Room sensor, ☐Frost protection sensor, ☐TG-R4,
☐Duct heater sensor, ☐Option temp 1,
☐Option temp 2, ☐Option temp 3, ☐Option temp 4,
☐Temp after Exch, ☐SAF Pressure, ☐EAF Pressure,
☐Exch. Pressure, ☐CO2, ☐Humidity
UI2 Not active ☐Room sensor, ☐Frost protection sensor, ☐TG-R4,
☐Duct heater sensor, ☐Option temp 1,
☐Option temp 2, ☐Option temp 3, ☐Option temp 4,
☐Temp after Exch, ☐SAF Pressure, ☐EAF Pressure,
☐Exch. Pressure, ☐CO2, ☐Humidity
UI3 Not active ☐Room sensor, ☐Frost protection sensor, ☐TG-R4,
☐Duct heater sensor, ☐Option temp 1,
☐Option temp 2, ☐Option temp 3, ☐Option temp 4,
☐Temp after Exch, ☐SAF Pressure, ☐EAF Pressure,
☐Exch. Pressure, ☐CO2, ☐Humidity
UI4 Not active ☐Room sensor, ☐Frost protection sensor, ☐TG-R4,
☐Duct heater sensor, ☐Option temp 1,
☐Option temp 2, ☐Option temp 3, ☐Option temp 4,
☐Temp after Exch, ☐SAF Pressure, ☐EAF Pressure,
☐Exch. Pressure, ☐CO2, ☐Humidity
2.16.1.4. CO2 (is displayed if CO2 is selected on any analog input)
0.0 V –>0 ppm __________ V -> __________ ppm
10.0 V –>1200 ppm __________ V -> __________ ppm
2.16.1.5. Humidity (is displayed if Humidity is selected on any analog input)
0.0 V –>0.0 %RH __________ V -> __________ %RH
10.0 V –>100.0 %RH __________ V -> __________ %RH
2.15.2. Digital inputs (*the function must be activated from the factory to be selected)
DI1 Not active ☐Min flow, ☐Boost flow, ☐Max flow, ☐Kitchen mode*,
☐ECO*, ☐Stove mode*, ☐Fire input*, ☐Fire damper*,
☐AHU. On/Off, ☐Normal, ☐Filter guard fire,
☐Smoke detector error*, ☐T (connected to timer)
DI2 Not active ☐Min flow, ☐Boost flow, ☐Max flow, ☐Kitchen mode*,
☐ECO*, ☐Stove mode*, ☐Fire input*, ☐Fire damper*,
☐AHU. On/Off, ☐Normal, ☐Filter guard fire,
☐Smoke detector error*, ☐T (connected to timer)
DI3 Not active ☐Min flow, ☐Boost flow, ☐Max flow, ☐Kitchen mode*,
☐ECO*, ☐Stove mode*, ☐Fire input*, ☐Fire damper*,
☐AHU. On/Off, ☐Normal, ☐Filter guard fire,
☐Smoke detector error*, ☐T (connected to timer)
DI6 Not active ☐Min flow, ☐Boost flow, ☐Max flow, ☐Kitchen mode*,
☐ECO*, ☐Stove mode*, ☐Fire input*, ☐Fire damper*,
☐AHU. On/Off, ☐Normal, ☐Filter guard fire,
☐Smoke detector error*, ☐T (connected to timer)
DI7 (is only displayed if a heat
source other than electricity is
selected)
Not active ☐Min flow, ☐Boost flow, ☐Max flow, ☐Kitchen mode*,
☐ECO*, ☐Stove mode*, ☐Fire input*, ☐Fire damper*,
☐AHU. On/Off, ☐Normal, ☐Filter guard fire,
☐Smoke detector error*, ☐T (connected to timer)
DI4 TF omr. ☐SA fan EC
DI5 TF omr. ☐EA fan EC, ☐Not active
Alarm delay SA 30 sec __________ sec
Alarm delay EA 30 sec __________ sec
2.15.2.1. Timer
Time 0 hour, ☒0 min ________ h (0 –24 h), ________ min (0 –59 min)
Edge Hi ☐Low
2.15.2.1.1.Stove timer (is displayed if "Stove mode" is configured on any digital output)
Ignite time 15 min __________ min (0 –30 min)

OPERATION & CONTROL
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
16
After time 12 hours __________ h (0 –24 h)
2.15.3. Digital outputs (*the function must be activated from the factory to be selected)
DO3 (only displayed if heater
"water 0-10V" or "no heater" is
selected)
Not active ☐KAVK, ☐ULS, ☐Sum alarms, ☐CP heater,
☐CP chiller, ☐Normal flow, ☐Fire damper, ☐Stove,
☐Section hatch, ☐Sum alarm A, ☐Sum alarm B,
☐Sum alarm C, ☐Smoke detector
DO4 Not active ☐KAVK, ☐ULS, ☐Sum alarms, ☐CP heater,
☐CP chiller, ☐Normal flow, ☐Fire damper,
☐PWM preheat, ☐Stove, ☐Section hatch,
☐Sum alarm A, ☐Sum alarm B, ☐Sum alarm C,
☐Smoke detector
DO5 Not active ☐KAVK, ☐ULS, ☐Sum alarms, ☐CP heater,
☐CP chiller, ☐Normal flow, ☐Fire damper,
☐PWM preheat, ☐Stove, ☐Section hatch,
☐Sum alarm A, ☐Sum alarm B, ☐Sum alarm C,
☐Smoke detector
DO6 Not active ☐KAVK, ☐ULS, ☐Sum alarms, ☐CP heater,
☐CP chiller, ☐Normal flow, ☐Fire damper,
☐PWM preheat, ☐Stove, ☐Section hatch,
☐Sum alarm A, ☐Sum alarm B, ☐Sum alarm C,
☐Smoke detector
DO7 Sum alarm ☐Not active ☐KAVK, ☐ULS, ☐CP heater,
☐CP chiller, ☐Normal flow, ☐Fire damper,
☐PWM preheat, ☐Stove, ☐Section hatch,
☐Sum alarm A, ☐Sum alarm B, ☐Sum alarm C,
☐Smoke detector
2.15.3.1. Invert DO
DO3 No ☐Yes
DO4 No ☐Yes
DO5 No ☐Yes
DO6 No ☐Yes
DO7 No ☐Yes
2.15.4. Analog outputs
AO3 Heating 0.0 V –10.0 V __________ V -__________ V
AO4 Cooling 0.0 V –10.0 V __________ V -__________ V
2.16. Modbus
Modbus communication Active ☐Not active
Modbus TCP On ☐Off
Modbus Address 1 __________
Baud rate 9600 bps ☐4800 bps, ☐14k4 bps, ☐19k2 bps, ☐28k8 bps,
☐38k4 bps, ☐57k6 bps, ☐76k8 bps, ☐115k2 bps
Format 801 ☐8N2, ☐8E2, ☐802, ☒8N1, ☐8E1
2.17. TCP/IP
DHCP Yes ☐No
Current IP ->
IP 192.168.001.234 __________
Current subnet mask 255.255.255.000 __________
Current gateway 192.168.001.001 __________
Current DNS 192.168.001.001 __________
2.18. EXOline address
Address
PLA 254 __________
ELA 30 __________
2.19. External display
Activate external display No ☐Yes
Port 2 __________
2.19.1. Setpoint adjustment
Max 3,0 ˚C __________ ˚C (0,0 –10,0 ˚C)
Min -3,0 ˚C __________ ˚C (-10,0 –0,0 ˚C)
2.20. Setpoint adjustment TG-R4
Setpoint adjustment with TG-R4

OPERATION & CONTROL
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
17
Activate No ☐Yes
2.21. Activate EA-fan
Activate EA-fan Yes ☐No
2.22. Filter timer
Activate Filter timer Yes ☐No
Number of days since start (Current value) __________
2.23. Cloudigo
Activate Cloudigo No ☐Yes
2.24. Save settings
Save current settings No ☐Yes
2.25. User menu
Temperature On ☐Off
Mode On ☐Off
Timer On ☐Off
In/outputs On ☐Off
Hand/Auto On ☐Off
Alarm history On ☐Off
Load settings On ☐Off
2.26. Zones
Activate 2 Zones No ☐Yes
2.26.1. Configure external display
Configure Livingroom (Connect ONE external display)
Configure No ☐Yes
Configure Bedroom (Connect ONE external display)
Configure No ☐Yes
2.27. Change Alarm Class
Alarm
Sensor error OD temp A ☐B, ☐C, ☐Inactive
Sensor error SA temp A ☐B, ☐C, ☐Inactive
Sensor error EXT temp A ☐B, ☐C, ☐Inactive
Sensor error EA temp A ☐B, ☐C, ☐Inactive
Sensor error Room temp A ☐B, ☐C, ☐Inactive
Sensor error FRP temp A ☐B, ☐C, ☐Inactive
Freeze protection alarm A ☐B, ☐C, ☐Inactive
Supply fan failure C ☐A, ☐B, ☐Inactive
Extract fan failure C ☐A, ☐B, ☐Inactive
Preheat damper manual C ☐A, ☐B, ☐Inactive
Electric heater overheated A ☐B, ☐C, ☐Inactive
Filter guard DI8 A ☐B, ☐C, ☐Inactive
Chiller manual C ☐A, ☐B, ☐Inactive
Heater manual C ☐A, ☐B, ☐Inactive
By-pass manual C ☐A, ☐B, ☐Inactive
ULS manual C ☐A, ☐B, ☐Inactive
KAVK manual C ☐A, ☐B, ☐Inactive
P1-heating manual C ☐A, ☐B, ☐Inactive
P1-cooling manual C ☐A, ☐B, ☐Inactive
SA fan manual C ☐A, ☐B, ☐Inactive
EA fan manual C ☐A, ☐B, ☐Inactive
SA controller manual C ☐A, ☐B, ☐Inactive
Internal battery failure A ☐B, ☐C, ☐Inactive
Filter alarm Inactive ☐A, ☐B, ☐C
Fire damper alarm A ☐B, ☐C, ☐Inactive
Fire alarm A ☐B, ☐C, ☐Inactive
Sensor error TG-R4 A ☐B, ☐C, ☐Inactive
Warning low supply temp C ☐A, ☐B, ☐Inactive
Preheat electric manual C ☐A, ☐B, ☐Inactive
Supply air temp low A ☐B, ☐C, ☐Inactive

OPERATION & CONTROL
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
18
2.1. Control function
2.1.1. Control functions
Selectable features:
·SA control: The temperature is regulated by the SA sensor only.
·ODT comp. SA control:The temperature is regulated as a function of the SA sensor and OD sensor.
·Casc. Room control: The temperature is regulated as a function of the room sensor and SA sensor.
·Casc. EA control: The temperature is regulated as a function of the EA sensor and SA sensor.
2.1.1.1. When cascade control max/min SA setpoint
This function is only active when cascade room control and cascade exhaust air control is used.
The rooms desired set point is set on the room sensor if room control and on the EA sensor if EA control. The
system calculates a new supply air (SA) set point based on the control error. In the extreme case (if large control
error) this could be very high (or low), which could generate too cold or hot supply air, which could feel
uncomfortable. It is possible to limit the SA set point both up and down.
2.1.2. Set point adjust
The menu "Set point adjust" is used together with room sensor with set point adjust
included, like Remote panel –Easy (TG-R4). Hear you can set the setting range for
the setpoint value adjustment. With the knob in center position (0 adjustment), the
setpoint on the main display is the one that applies.
Current adjustment for TG-R4 can be seen in the display on line 3.
The current setpoint on the remote panel can be seen in line 4.
2.1.3. Room sensor
If there is more than one room sensor, where one is connected to the analog input (an
ordinary simple standard sensor or e.g., remote panel - Simple (TG-R4)) and the other is a
serial remote panel with built-in sensor connected to port 1 or 2, it is possible to choose from
where the actual value should be taken. This menu is only displayed if room control is used.
2.2. Demand control
Demand control means that the fans regulate between normal flow and forced flow due to temperature, CO2 or
humidity or a combination thereof. The extract air sensor is used as the temperature sensor. CO2 and humidity
sensors are connected to an analog input 0-10V. If you choose a combination of sensors, it is the regulator that
wants the highest fan speed that "wins".
2.2.1. Activate
Menu for activating the various demand control functions.
2.2.1.1. Temperature control
Menu for setting the temperature setpoint
If temperature control is selected, it is possible to choose if the demand control shall be connected to heating or
cooling.
NOTE! Check that supply air and exhaust air setpoints do not contradict each other. Normally you choose a
supply air setpoint that is a few degrees below what you want as room temperature. Demand setpoint should be
the desired temperature in the room.
Duct heater manual C ☐A, ☐B, ☐Inactive
Sensor error duct heater A ☐B, ☐C, ☐Inactive
Sensor error temp. after exch. A ☐B, ☐C, ☐Inactive
Defrost failed A A ☐B, ☐C, ☐Inactive
Defrost failed B C ☐A, ☐B, ☐Inactive
Hatch manual C ☐A, ☐B, ☐Inactive
Autocalibration not finished C ☐A, ☐B, ☐Inactive
Fire indication B ☐A, ☐C, ☐Inactive
Smoke detector error B ☐A, ☐C, ☐Inactive
Remote panel - Easy
Remote panel –With display

OPERATION & CONTROL
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
19
2.2.1.1.1. PI-settings temperature
Setting of control parameters.
2.2.1.2. CO2-control
Menu for setting the CO2 setpoint
2.2.1.2.1. PI-settings CO2
Setting of control parameters.
2.2.1.3. Humidity-control
Menu for setting the humidity setpoint
2.2.1.3.1. PI-settings RH
Setting of control parameters.
2.3. Fan setup
2.3.1. Fan control
Selectable features:
·Fixed Speed: The fan is running with a fixed %-value of the maximum speed.
2.3.2. Fan speeds
Menu group for fan speeds. When adjusting, you can balance the correct flows by changing the setting for resp.
fan.
2.3.2.1. Supply air fan
In this menu, you set the setpoints for the speeds of the supply air fan, corresponding to the various operating
modes.
Fan speed night cooling
The value for night cooling is, on delivery, the same as normal mode. If the value for normal mode is changed, the
value for night cooling will be changedtoo, unless the value for night cooling is actively set to something else.
To get them synchronized again, set the night cooling value at the same value as normal mode.
2.3.2.1.1. Delay SA fan
Menu for setting the supply air fan start and stop delay.
2.3.2.2. Extract air fan
Menu like 2.3.2.1. but for the exhaust fan.
2.3.2.2.1. Delay EA fan
Menu like 2.3.2.1.1. but for the exhaust fan.
2.4. Temperature control
In this menu group, you can adjust the control parameters for the different temperature controllers. All controllers
are of the PI type with adjustable P-band and I-time.
Setting the controllers
In most cases, it works with the default setting, but if you see a need for it, you can adjust it.
Warning! At the same time, an incorrect setting can cause the system to function very badly.
It is the same supply air regulator in all three cases above. A change follows if you change the control function.
What is P and I?
P-band is the temperature change needed to move the actuator from closed to fully open. A small P-band (= large
gain) causes an unstable system. A small temperature change on the sensor generates maximum heat and

OPERATION & CONTROL
Ventilation unit Temovex Blue 2 / 4
REC Indovent AB, Box 37, 431 21 Mölndal | phone: [phone] | www.rec-indovent.se
20
provides large overshoots. A large P-band (low gain) on the other hand provides smaller overshoots but will take
longer before the correct value is reached.
Including an integrator (I-value) in the control loop will provide smaller overshoots. The gain decreases the closer
the set point comes.
2.4.1. SA control
The supply air regulator is indirect acting, i.e., the output signal increases with decreasing temperature.
With the correct P and I parameter, the temperature at the supply air sensor will be kept constant at the set
setpoint.
2.4.2. Room control
The room regulator works together with the supply air regulator in so-called cascade regulation. A deviation in
room temperature compared to the set point generates a shift of the operating point of the supply air regulator so
that the deviation is eliminated.
2.4.3. EA control
The exhaust air regulator works together with the supply air regulator in so-called cascade regulation. A deviation
in exhaust air temperature compared to the set point generates a shift of the operating point of the supply air
controller so that the deviation is eliminated.
2.4.4. SA Control Livingroom
See section 2.4.1.
2.4.5. Room control Livingroom
See section 2.4.2.
2.4.6. Preheat control
Preheater control parameters.
2.5. PID output
2.5.1. PID output (Heating, Bypass, Cooling)
Here the output from the SA controller is
displayed, divided between the three outputs
cooling, bypass and heating.
The output from the SA controller 0-100% is
divided between the outputs as follow.
2.5.2. PID output preheat
Menu showing pre-heat output.
2.5.3. PID output duct heater
The line "Heating" shows the equipment of the duct heater. When this has reached 100% and the living room still
has not reached its setpoint, the bedroom's setpoint is shifted (increased) little by little, causing the unit's built-in
heater to increase so that the living room's setpoint is reached. How many degrees the displacement is now can
be seen on the last line.
2.6. ECO/ECO2
ECO-mode
·ECO can be used together with all control functions.
·ECO saves energy when nobody is at home. The fans go down to minimum flow.
·ECO means that the fans, when they go on min. flow, increase speed up to normal flow, to carry more
heat or cool if min. flow cannot hold the set point.
·ECO-boosting together with cooling works even without cooler. The AHU takes cold air through the
bypass only and will cool as far as possible.
Controller output
(PID
-
output)
Cooling By-pass Heating
0
–
32%
100
–
0%
100%
0%
32 –64% 0% 100 –0% 0%
64
-
66%
0%
0%
0%
66
-
100%
0%
0%
0
-
100%