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