REC RT 700S-EC-RS User manual

Ventilation unit RT 700/1000S-EC-RS
REC Indovent AB, Box 37, 431 21 Mölndal | tel.[phone] |www.rec-indovent.se
1
Extract air filter, article No: Q4871
Supply air filter, article No: Q4872
INSTALLATION & ADJUSTMENT
OPERATION & CONTROL
Technicians Manual

CONTENTS
Ventilation unit RT 700/1000S-EC-RS
REC Indovent AB, Box 37, 431 21 Mölndal | tel.[phone] |www.rec-indovent.se
2
Page
Installation & Adjustment
Safety and Security 3
Receipt of Delivery 3
Installation 3
Mounting 3
Condensate Drain 3
The Duct System 3
Silencing 3
Placing of Temperature Sensors 3
Insulation 4
Open Fireplace 4
Power connection 4
Access to connection terminals 5
Circuit Diagram 6
Terminal Description 7
Circuit diagram electric heating 8
Fire damper and smoke detector 9
Connection of stairwell unit 10
Connection Options 11
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 14
2.1. Control function 20
Control Functions
Cascade Control
Setpoint Adjustment
Room Sensors
2.2. Demand Control 20
Activate
Temperature control
CO2 control
Moisture control
2.3. Fan Setup 21
Fan control
Setting fan speeds
Fan delay
2.4. Temperature control 21
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 22
Heating, Bypass, Cooling
Pre-heater
Duct heater
2.6. ECO/ECO2 22
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 24
Type of heater
Electric heater
Water heater
Anti-freeze function
Exercise of valve
2.8. Defrosting 25
Stop defrost
During stop defrost
2.9. Bypass 25
Bypass dumper´s running time
Outdoor temp. limit of open
Activate ramptime
2.10.Cooling recovery 26
2.11.Night cooling 26
Extended running time.
Boost cooling
Conditions night cooling
2.12.Forced cooling 27
2.13.Timer 27
2.14.KAVK (Condensation boiler) 27
2.15.Fire function 28
Fire input
Fire damper function
Exercise fire damper
Fire indication
2.16.I/O configuration 29
Analog inputs
Digital inputs
Priority order
Timer
Stove mode
Digital outputs
Inverting digital outputs
Analog outputs
2.17.Modbus 30
2.18.TCP/IP 31
2.19.EXOline address 31
2.20.Remote Panel 31
2.21.Setpoint Adjustment TG-R4 31
2.22.Activate Exhaust fan 31
2.23.Filter Timer 31
2.24.Cloudigo 31
2.25.Save Settings 31
2.26.User Menu 31
2.27.Zones 32
Enable Zones
Remote Panel Configuration
Temperature Menus
2.28.Change Alarm Class 32

REC Indovent AB, Box 37, 431 21 Mölndal | tel.[phone] |www.rec-indovent.se
3
INSTALLATION & ADJUSTMENT
Ventilation unit RT 700/1000S-EC-RS
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. 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.
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
Ducts and duct details should be made of an age-
resistant material that is also easy to clean inside.
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.
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.
!
!
!

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INSTALLATION & ADJUSTMENT
Ventilation unit RT 700/1000S-EC-RS
If a room sensor is used, it should be placed approx.
1,8 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.
Connection at the top of the unit.

REC Indovent AB, Box 37, 431 21 Mölndal | tel.[phone] |www.rec-indovent.se
5
INSTALLATION & ADJUSTMENT
Ventilation unit RT 700/1000S-EC-RS
Access to connection terminals
All connections are made on the circuit board
located behind the control panel. Unscrew the cover
on which the control panel is located to access the
circuit board.
All connection terminals are numbered, and a
description of resp. terminal is found on page 7.
In most cases, the electrical signal and cable color
are also indicated on the circuit board.
Circuit board for connection of external functions.
Circuit board
The printed circuit board screen print.

REC Indovent AB, Box 37, 431 21 Mölndal | tel.[phone] |www.rec-indovent.se
6
INSTALLATION & ADJUSTMENT
Ventilation unit RT 700/1000S-EC-RS
Circuit Diagram

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7
INSTALLATION & ADJUSTMENT
Ventilation unit RT 700/1000S-EC-RS
Description of terminal blocks
General
Joining of circuits is made on the bottom circuit
board. To access the circuit board, remove the DUC
(see previous page).
Texts on the circuit board show where to connect
what. All terminals have a Jxx No. and a small
triangle on pin 1.
When in the following text for example J26/1,2 is
stated, it means that the function should be
connected to terminal J26, pin 1 and 2.
Where appropriate, the signal is marked on the
board.
Room sensor (Terminal J6/1,2)
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 J8/1,2,3)
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).
Reheater water (Terminal J7)
Two alternative is possible, so called wax-actuator
(controlled by PWM-signal) or motor-actuator (0-
10V signal).
(The cable may already be connected upon
delivery)
Temperature sensors (Terminal J9)
Temperature sensors (PT1000) for outdoor air ,
supply air , extract air and exhaust air are already
connected at delivery.
Freeze protection (Terminal J10/1,2)
In order 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.
Modbus (Terminal J12)
Terminal for possible modbus communication.
ECO Remote (Terminal J100)
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 (Terminal J13 and J14)
Connection terminals for the fans. These are
already connected at delivery.
By-pass (Terminal J28)
Connection terminal for the by-pass damper. The
cable is already connected at delivery.
Optional terminal for by-pass (Terminal J29)
Extra connection terminal for by-pass damper
(some AHU models).
Ext.1, Ext.2 and Ext.3 (Terminals J23 to J25/1,2)
There is, as an option, the possibility to connect
three 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".
Start/stop (Terminal J26/1,2)
An external switch for "Start/stop" can be
connected. The switch does not make the unit
powerless. It just makes the AHU stop running.
If this function is used, the jumper J34 should be
moved to mode OFF.
Optional terminal for filter guard (Terminal J21)
For some of the larger AHU models only.
Relay outputs (Terminals J19, J20)
The system has 4 identical relay outputs which can
be configured to various functions. The
configuration in the circuit diagram above is just one
example, others is possible. To see which options
are available, please turn to chapter "Operation &
control".
A condensation boiler (KAVK), if any, is already
connected at delivery.
Mains voltage (Terminals J15, J16, J17)
230VAC, 50Hz
Chassis (Terminal J18)
Ground connection of chassis.
Electric heater, power supply (Terminal J5/2,3)
Pin 2 phase, pin 3 neutral (blue).
Electric heater, control signals (Terminal J4)

REC Indovent AB, Box 37, 431 21 Mölndal | tel.[phone] |www.rec-indovent.se
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INSTALLATION & ADJUSTMENT
Ventilation unit RT 700/1000S-EC-RS
Connection electric heating
Circuit diagram supplement electric heating.
RT700 1-phase 900-1800W RT700/1000 3-phase 2,5kW
RT700/1000 3-phase 3,4 - 3,7kW
RT700/1000-unit 3-phase 5kW

REC Indovent AB, Box 37, 431 21 Mölndal | tel.[phone] |www.rec-indovent.se
9
INSTALLATION & ADJUSTMENT
Ventilation unit RT 700/1000S-EC-RS
Connection of fire damper and smoke detector
Power supply
The damper motor and the smoke detector are
powered with 24VAC by an external transformer.
Damper motor
The damper motor is controlled via any of the relay
outputs (DO4, 5, 6 or 7) on the circuit card. Which
output you choose does not matter as long as the
equivalent configuration of the control panel is
made. See pages 40-41.
The damper motor has built-in limit switches and
should be connected to any of the circuit card's
digital inputs (Ext. 1, 2 or 3). See this page's
diagram. Which output you choose does not matter
as long as the equivalent configuration of the control
panel is made. See pages 40-41.
The top diagram shows how more than one fire
damper is connected. Maximum is 5 dampers.
Smoke detector
The smoke detector's output is connected to any of
the circuit board's digital inputs (Ext. 1, 2 or 3). See
this page's diagram. Which output you choose does
not matter as long as the equivalent configuration of
the control panel is made. See pages 40-41.
The top diagram shows how more than one smoke
detector is connected. Maximum is 5 detectors.
Example
The bottom diagram shows the connection of one
fire damper and one smoke detector.
In this example, we have chosen DO5 for the
control of the fire dampler and external input 2 for
the damper's limit switches.
External input 1 has been used for the smoke
detector.
DO4 has been chosen for the alarm output.
How to configure, see pages 40-41.
Function
Fire alarm
If the smoke detector is activated by smoke or fire,
there is a signal at the alarm output, at the same
time as the fire dampers change position.
Fire damper
Fire dampers are normally configured to open in
case of fire, but may be configured to close instead.
Exercising the fire damper
Exercise of the fire dampers can be configured.
The interval between exercises is adjustable. To
enable this function, the fire dampers are fitted with
limit switches. When an exercise is carried out, the
system checks that the dampers reach their limits
and that the limit switches are working. If not, a
signal at the alarm output is activated.
The controller may be configured to stop the fans in
connection with the exercise.

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10
INSTALLATION & ADJUSTMENT
Ventilation unit RT 700/1000S-EC-RS
Connection of stairwell unit
What is meant by stairwell units?
REC's stairwell unit is an FTX unit located in the stairwell that serves up to 8 apartments. In multi-dwelling
buildings (both new construction and ROT) with 2-4 floors, we can get FTX in a simple and cost-effective way
without major intervention in the property. Examples of placement can be cleaning scrubber or storage (see type
example below).
Example of standard installation:
The ventilation unit is a REC Temovex 700/1000S-EC-RS (counterflow exchanger) complete with control,
constant supply air control and fire function. The unit has the optional EVBV (water reheater).
Outdoor air via grille in outer wall. The extract air normally passes through the unit / heat exchanger. The duct
system from the apartments, both supply and extract air, is connected to the unit via collection ducts. When fire
smoke is indicated in the extract air stems, a damper opens, and the air goes via a by-pass duct outside the unit.
The fire gas fan on the roof, alternatively in the evacuation duct, evacuates fire smoke and prevents the spread
between fire cells. On the supply air duct, backflow protection is installed to prevent fire gases from being pushed
back into the apartments.
Read more about principal execution A and B below.
Principle implementation A
RT700/1000S-EC-RS-BFLF-BRAND
The unit's extract air fan has been removed and replaced
by a fire gas fan (FF1) on the roof. When the fire indicator
is triggered, the unit's fans stop, the bypass damper SP1
opens and the flue gas ceiling fan FF1 (300 ° C for 1
hour) forces out the smoke. Exercise of SP1 and control
(0-10V) of the fire gas fan takes place from the unit.
Addition to version A - purchased separately.
•Fire gas fan (ceiling)
0-10V controlled, 300 ° C for 1 hour. Ex. RDM from
Gebhardt,
SEF from Exhausto or equivalent.
•Back flow protection
Ex. BASIC from Hagab, EKO-BSVfrom Ekovent or
equivalent.
•Bypass damper
24 V supplied 2-position with return.
Principle implementation B
RT700/1000S-EC-RS-BRAND
During normal operation, the unit ventilates with built-in
EC fans (supply and extract air). SP1 is normally closed
and SP2 is normally open. When the fire indicator is
triggered, the unit's fans stop. SP2 closes, SP1 opens and
fire gas fan in duct FF2 (300 ° C for 1 hour) forces out the
smoke. Exercise of SP1, SP2 and start signal of the fire
gas fan takes place from the unit.
Addition to version B - purchased separately.
•Axial fan fire gas
300 ° C for 1 hour. Unit leaves start signal 24 V at
fire. Ex. LCS from Gebhardt.
•Back flow protection
Ex. BASIC from Hagab, EKO-BSVfrom Ekovent or
equivalent.
•Bypass damper
24 V supplied 2-position with return.

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11
INSTALLATION & ADJUSTMENT
Ventilation unit RT 700/1000S-EC-RS
Connection Options
Connection of Fireplace Button (24V)
Connection of ULS, KAVK, CP-heating etc. (230V)
Connection according to above, on any output DO4-DO7 and selected output configure to selected function.
Blue
Brown
Yellow/Green
ULS
KAVK
CP-heating
The selected digital output is
configured to fireplace mode.
In this example, DO6 is selected.
The selected digital input is
configured to fireplace mode.
In this example, DI2 is selected.

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12
INSTALLATION & ADJUSTMENT
Ventilation unit RT 700/1000S-EC-RS
Connection Modbus
Connect Modbus on Terminal J12 pin 3 and 4.
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.
Remote Panel PCB
10 J8/1
11 J8/3
42 J12/3
43 J12/4
Connection Remote panel –3-position
Connect the socket to terminal 100
(ECO Remote).
Connect blue cable to terminal J8/1
(24VAC).
Connect pink cable to terminal
J26/1.
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
Modbus
A
B

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13
INSTALLATION & ADJUSTMENT
Ventilation unit RT 700/1000S-EC-RS
Connection Remote panel –Easy (TG-R4)
Remote - PCB
panel
1 J6/1
2 J6/2
3 J10/3
4 J10/4
Connection Internet (Cloudigo)
Connect an internet cable to DUC as on picture.
Pull out the cable through a suitable lead-through on the top of the unit.

REC Indovent AB, Box 37, 431 21 Mölndal | tel.[phone] |www.rec-indovent.se
14
OPERATION & CONTROL
Ventilation unit RT 700/1000S-EC-RS
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 RT 700/1000 (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 % __________ %

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OPERATION & CONTROL
Ventilation unit RT 700/1000S-EC-RS
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)

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16
OPERATION & CONTROL
Ventilation unit RT 700/1000S-EC-RS
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. Exhaust temperature 0,0 ˚C ☐__________ ˚C (-30,0 –10,0 ˚C)
Defrost time 5 min ☐__________ min
Delay 3 h ☐__________ h (0 - 24 h)
2.8.2. During stop defrost (if electric reheater)
Bypass 0 % ☐__________ % (0 –100 %)
SAF 0 % ☐__________ % (0 –100 %)
Heat 0 % ☐__________ % (0 –100 %)
During stop defrost (if water reheater)
Bypass 100 % ☐__________ % (0 –100 %)
SAF 0 % ☐__________ % (0 –100 %)
Heat 100 % ☐__________ % (0 –100 %)
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
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. Fire function (is displayed if ”Fire”is activated under system settings)
Fire input Normally open ☐Normally open
Exercise fire damper No ☐Yes don´t stop AHU, ☐Yes stop AHU
Fire damper function Not active ☐FDs normally closed, ☐FDs normally open
2.15.1. Exercise fire damper (is displayed if ”Excercise fire damperl”is configured to yes)
Run time 90 sec ☐__________ sec (0 - 600 sec)
Interval 1 days ☐__________ days (1 - 30 days)
Excercise time 0 ☐__________ (0 - 23)
Fire indication Normally open ☐Normally closed
Auto acknowledge delay 30 min ☐____1____ min (0 –30 min)
2.16. I/O configuration (ATTENTION! if the function corresponding to the desired selection is not configured, the selection returns when you leave the menu)

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OPERATION & CONTROL
Ventilation unit RT 700/1000S-EC-RS
2.16.1. 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
2.16.2. Digital inputs (*the function must be activated from the factory to be selected)
DI1 AHU On/Off ☐Not active, ☐Min flow, ☐Boost flow, ☐Max flow,
☐Kitchen mode*, ☐ECO*, ☐Stove mode*,
☐Fire input*, ☐Fire damper*, ☐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
2.16.2.1. Timer
Time 0 hour, ☒0 min ________ h (0 –24 h), ________ min (0 –59 min)
Edge Hi ☐Low
2.16.2.1.1.Stove timer (is displayed if "Stove mode" is configured on any digital output)
Ignite time 15 min __________ min (0 –30 min)
After time 12 hours __________ h (0 –24 h)
2.16.3. 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,

REC Indovent AB, Box 37, 431 21 Mölndal | tel.[phone] |www.rec-indovent.se
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OPERATION & CONTROL
Ventilation unit RT 700/1000S-EC-RS
☐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
2.16.3.1. Invert DO
DO3 No ☐Yes
DO4 No ☐Yes
DO5 No ☐Yes
DO6 No ☐Yes
DO7 No ☐Yes
2.16.4. Analog outputs
AO3 Heating 0.0 V –10.0 V __________ V -__________ V
AO4 Cooling 0.0 V –10.0 V __________ V -__________ V
2.17. 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
2.18. 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 __________
2.19. EXOline address
Address
PLA 254 __________
ELA 30 __________
2.20. External display
Activate external display No ☐Yes
Port 2 __________
2.20.1. Setpoint adjustment
Max 3,0 ˚C __________ ˚C (0,0 –10,0 ˚C)
Min -3,0 ˚C __________ ˚C (-10,0 –0,0 ˚C)
2.21. Setpoint adjustment TG-R4
Setpoint adjustment with TG-R4
Activate No ☐Yes
2.22. Activate EA-fan

REC Indovent AB, Box 37, 431 21 Mölndal | tel.[phone] |www.rec-indovent.se
19
OPERATION & CONTROL
Ventilation unit RT 700/1000S-EC-RS
Activate EA-fan Yes ☐No
2.23. Filter timer
Activate Filter timer Yes ☐No
Number of days since start (Current value) __________
2.24. Cloudigo
Activate Cloudigo No ☐Yes
2.25. Save settings
Save current settings No ☐Yes
2.26. 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
2.27. Zones
Activate 2 Zones No ☐Yes
2.27.1. Configure external display
Configure Livingroom (Connect ONE external display)
Configure No ☐Yes
Configure Bedroom (Connect ONE external display)
Configure No ☐Yes
2.28. 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
Duct heater manual C ☐A, ☐B, ☐Inactive
Sensor error duct heater A ☐B, ☐C, ☐Inactive
Sensor error temp. after exch. A ☐B, ☐C, ☐Inactive

REC Indovent AB, Box 37, 431 21 Mölndal | tel.[phone] |www.rec-indovent.se
20
OPERATION & CONTROL
Ventilation unit RT 700/1000S-EC-RS
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.
2.2.1.1.1. PI-settings temperature
Setting of control parameters.
Defrost failed A A ☐B, ☐C, ☐Inactive
Defrost failed B B ☐A, ☐C, ☐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