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Controls by Monodraught iNVent 2 Intelligent Natural Ventilation Control The Monodraught iNVent 2 system is a Natural Ventilation management system for up to 4 zones, each consisting of up to 3 Natural Ventilation systems. It utilises seasonally adjusted proportional control based on internal temperature and CO 2 . With configurable sensor, strategy, and actuator mapping via USB, as well as built in data logging, the iNVent 2 system can control Natural Ventilation systems to suit any building application. Features Supports all Monodraught Natural Ventilation products Real-Time Clock LCD screen 60W PSU Automatically resets if power is interrupted using watchdog timer Seasonal control strategy, influenced by internal and external temperatures, as well as CO 2 levels Individually fused (resettable) 24V zone supplies Built-In data logging Master volt-free I/O can be distributed between multiple panels BACnet visible with optional BACnet module RS485 communication bus USB access for configuration and monitoring Configurable sensor, strategy and actuator mapping External cooling and heating zone control Fully backwards compatible with iNVent

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Controls by Monodraught

iNVent 2Intelligent Natural Ventilation Control

The Monodraught iNVent 2 system is a Natural Ventilation management system for up to 4 zones, each consisting of up to 3 Natural Ventilation systems. It utilises seasonally adjusted proportional control based on internal temperature and CO2. With configurable sensor, strategy, and actuator mapping via USB, as well as built in data logging, the iNVent 2 system can control Natural Ventilation systems to suit any building application.

Features

• Supports all Monodraught Natural Ventilation products• Real-Time Clock• LCD screen• 60W PSU• Automatically resets if power is interrupted using watchdog timer• Seasonal control strategy, influenced by internal and external temperatures, as well as CO2 levels• Individually fused (resettable) 24V zone supplies• Built-In data logging

• Master volt-free I/O can be distributed between multiple panels • BACnet visible with optional BACnet module• RS485 communication bus• USB access for configuration and monitoring• Configurable sensor, strategy and actuator mapping• External cooling and heating zone control• Fully backwards compatible with iNVent

[email protected] / +44 (0)1494 897700 2

SOLA-BOOST® Classic

Dimensions• 255 mm x 385 mm x 40 mm

Mounting• Unit is designed to be wall mounted in a

decentralised location within the building, close to the zones it is controlling, like a storage cupboard, plant room or above a suspended ceiling

Operating Conditions• 0 - 40 °C• 10 - 80% RH non-condensing

Power Supply• 24V DC @ 60 mA Nominal• Supplied with SMPS for converting 240V AC

to 24V DC @ 2.5A requiring connection to a 3A switched spur

• The iNVent 2 can supply up to a total of 2A from the 24VDC supply to field devices

Terminals• Cable size 1 mm2 CSA max.• Cable size 0.5 mm2 CSA multi-strand

recommended

Case• Front Cover: Acrylic Capped ABS• Wall Mounting Holes Located Inside the Case

PC Interface

The iNVent 2 Control Panel has an internal USB port which allows a commissioning engineer to connect a Laptop to the panel for custom configuration, maintenance and data collection purposes.

Functionality

DAMPER/LOUVRE

0V 24VDMP. LVR.

WALL ACTUATOR

0V 24V

Zone

#

0V 24V 0V 24V

SENSOR 1 SENSOR 2RS485

DMP. LVR.

RAIN SMOKE FAULT

COM NO

COM ORCOM

COM COMH C

ALARMHEAT

EXTERNAL TEMP.

0V 24VCOM O C

FIRE SWITCHCOMP SWITCH

COM C1 C2

DAMPER/LOUVRE

0V 24VDMP. LVR.

WALL ACTUATOR

0V 24V

Zone

#

0V 24V 0V 24V

SENSOR 1 SENSOR 2RS485

DMP. LVR.DAMPER/LOUVRE

0V 24VDMP. LVR.

WALL ACTUATOR

0V 24V

Zone

#

0V 24V 0V 24V

SENSOR 1 SENSOR 2RS485

DMP. LVR.DAMPER/LOUVRE

0V 24VDMP. DMP. LVR.

WALL ACTUATOR

0V 24V

Zone

#

0V 24V 0V 24V

SENSOR 1 SENSOR 2RS485

LVR.

Z1 COOLING Z2 COOLING

COM NONOCOM

COM COMNO NO

Z2 HEATINGZ1 HEATING

Z3 COOLING Z4 COOLING

COM NONOCOM

COM COMNO NO

Z4 HEATINGZ3 HEATING

COOLING/HEATING SOLID STATE RELAYS

MASTER CONTROLS

0V Z324V 0V Z424VZ4Z3Z2Z10V

0V Z124V 0V Z224VZ4Z3Z2Z10VBMS INPUTS

BMS OUTPUTS

GENERAL PURPOSE

MONODRAUGHT iNVent 2

24V

0V

24V

24V

0V

B

A

BUTTON2

BUTTON1

LED3

LED7

LED6

LED4LED2

Tx Rx

LED10 LED17LED5LED1

LED11

LED8LED9

LED12

LED13LED14

LED15LED16

A

D

B

C

Case Dimensions

2

305 mm

385 mm

110

44

366 mm

CABLE ENTRY

FIXING HOLES

40255 m

m

EXTERNAL INTERNAL

PLAN

DAMPER/LOUVRE

0V 24VDMP. LVR.

WALL ACTUATOR

0V 24V

Zone

#

0V 24V 0V 24V

SENSOR 1 SENSOR 2RS485

DMP.

RAIN SMOKE FAULT

COM NO

COM ORCOM

COM COMH C

ALARMHEAT

EXTERNAL TEMP.

0V 24VCOM O C

FIRE SWITCHCOMP SWITCH

COM C1 C2

DAMPER/LOUVRE

0V 24VDMP. DMP. LVR.

WALL ACTUATOR

0V 24V

Zone

#

0V 24V 0V 24V

SENSOR 1 SENSOR 2RS485

DAMPER/LOUVRE

0V 24VDMP. LVR.

WALL ACTUATOR

0V 24V

Zone

#

0V 24V 0V 24V

SENSOR 1 SENSOR 2RS485

DMP.DAMPER/LOUVRE

0V 24VDMP. LVR.

WALL ACTUATOR

0V 24V

Zone

#

0V 24V 0V 24V

SENSOR 1 SENSOR 2RS485

DMP.

Z1 COOLING Z2 COOLING

COM NONOCOM

COM COMNO NO

Z2 HEATINGZ1 HEATING

Z3 COOLING Z4 COOLING

COM NONOCOM

COM COMNO NO

Z4 HEATINGZ3 HEATING

COOLING/HEATING SOLID STATE RELAYS

MASTER CONTROLS

0V Z324V 0V Z424VZ4Z3Z2Z10V

0V Z124V 0V Z224VZ4Z3Z2Z10VBMS INPUTS

BMS OUTPUTS

GENERAL PURPOSE

MONODRAUGHT iNVent 2

24V

0V

Compatible Products

WINDCATCHER® Classic WINDCATCHER® X-Air SOLA-BOOST® X-Air

VENTSAIR® Façade VENTSAIR® Roof Mounted Terminal

VENTSAIR® Acoustic Air Transfer System

Specification

[email protected] / +44 (0)1494 897700 3

Master InputsA

RAIN SMOKE FAULT

COM NO

COM NONOCOM

COM COMNO NO

ALARMHEAT

EXTERNAL TEMP.

0V 24VCOM O C

FIRE SWITCHCOMP SWITCH

COM O C

24V

0V

Competition Key Switch (optional)

Allows the limiting of ventilation for air movement sensitive

activities

Rain Sensor Closes windows and protects against rain

ingress in natural ventilation products

Heating Interlock (optional)

Prevents the system from cooling spaces when

heating is onFire Alarm (optional)

Closes sources of ventilation in response to a fire alarm input to

restrict the spread of fire

Fault Signal (optional)A volt-free contact which when open indicates a fault has occurred

Smoke Vent (optional) Opens specially configured smoke ventilation airways to help keep escape routes clear of smoke and to aid evacuation in event of a fire

External Temperature Used to adjust the seasonal strategy and protect ventilation systems against snow/frost

Fire Key Switch (optional) Allows fire officers to override the system to open or close ventilation systems if necessary

4 Heating Solid-State Relay Outputs

• Allows iNVent 2 to control auxiliary heating in each zone

4 Cooling Solid-State Relay Outputs• Allows iNVent 2 to control auxiliary cooling in

each zone

Heating & CoolingC

4 General Purpose 0 - 10V Inputs• Used for additional sensor or control inputs

4 BMS 0 - 10V Inputs• Allows a BMS system to share sensor data

with an iNVent 2 panel. This allows hybrid ventilation systems to share the same sensor readings, allowing highly accurate interlinking of cooling and heating systems

4 BMS 0 - 10V Outputs• Used to send analogue signals to a BMS

system in order to share sensor data or control information. This allows the BMS to operate on the same information as iNVent 2

General Purpose & BMSB

Z1 COOLING Z2 COOLING

COM NONOCOM

COM COMNO NO

Z2 HEATINGZ1 HEATING

Z3 COOLING Z4 COOLING

COM NONOCOM

COM COMNO NO

Z4 HEATINGZ3 HEATING

COOLING/HEATING SOLID STATE RELAYS

0V Z324V 0V Z424VZ4Z3Z2Z10V

0V Z124V 0V Z224VZ4Z3Z2Z10VBMS INPUTS

BMS OUTPUTS

GENERAL PURPOSE

4 Input Zones with the Following Inputs per Zone• 2 sensor 0 - 10V inputs: Can be used with temperature, CO2 or other sensors, or with Monodraught

Multifunction wall controllers• 3 actuator 0 - 10V feedback inputs: Used to monitor the position of the actuators or can be re-

purposed for use as additional sensors

4 Output Zones with the Following Outputs per Zone• 3No. 0 - 10V analogue outputs: Used to control actuators in Monodraught natural ventilation

products

Input & Output ZonesD

Wiring Examples (I)

Zone

#

DAMPER/LOUVRE0V 24VDMP. DMP. LVR.

WALL ACTUATOR0V 24V

0V 24V 0V 24V

SENSOR 1 SENSOR 2RS485

Windcatcher Classic

4-Co

re 0

.5m

m2 C

able

- RS

-660

-409

6/ F

arne

ll 24

4012

1(s

uppl

ied

and

fitte

d by

oth

ers)

LVR.

Zone

#

DAMPER/LOUVRE0V 24VDMP. DMP. LVR.

WALL ACTUATOR0V 24V

0V 24V 0V 24V

SENSOR 1 SENSOR 2RS485

4-Co

re 0

.5m

m2 C

able

- RS

-660

-409

6/ F

arne

ll 24

4012

1(s

uppl

ied

and

fitte

d by

oth

ers)

LVR.

Windcatcher X-Air

Zone

#

DAMPER/LOUVRE0V 24VDMP. DMP. LVR.

WALL ACTUATOR0V 24V

0V 24V 0V 24V

SENSOR 1 SENSOR 2RS485

4-Co

re 0

.5m

m2 C

able

- RS

-660

-409

6/ F

arne

ll 24

4012

1(s

uppl

ied

and

fitte

d by

oth

ers)

LVR.

Sola-Boost X-Air

WINDCATCHER X-Air CablingWire Colour Functionality

Blue 0V DC PowerGreen 2 - 10V Damper ControlWhite 2 - 10V Damper FeedbackYellow 2 - 10V Louvre ControlBlack 2 - 10V Louvre FeedbackRed 24V DC Power

SOLA-BOOST X-Air CablingWire Colour Functionality

Blue 0V DC PowerGreen 0 - 10V Wall Controller SignalWhite 2 - 10V Damper ControlYellow 2 - 10V Louvre ControlBlack 2 - 10V Louvre FeedbackRed 24V DC Power

WINDCATCHER Classic CablingWire Colour Functionality

Blue 0V DC PowerGreen 2 - 10V Damper Control

Yellow (Optional) 2 - 10V Damper FeedbackRed 24V DC Power

[email protected] / +44 (0)1494 897700 4

Season Spring Summer Autumn WinterStart Date 01 March 01 June 01 September 01 DecemberFinish Date 31 May 30 August 30 November Last Day of Feb

Zone Temperature Damper Output

Up to 16°C

Dampers Closed

Dampers Closed

Dampers ClosedDampers Closed

At 17°C Dampers Open 20%At 18°C Dampers Open 40%At 19°C Dampers Open 60%At 20°C Dampers Open 20% Dampers Open 80% Dampers Open 20%At 21°C Dampers Open 40%

Dampers Fully Open

Dampers Open 40%At 22°C Dampers Open 60% Dampers Open 60% Dampers Open 10%At 23°C Dampers Open 80% Dampers Open 80% Dampers Open 20%At 24°C

Dampers Fully Open Dampers Fully OpenDampers Open 30%

At 25°C Dampers Open 40%At 26°C Dampers Open 50%

Night Time CoolingActivLouvre Opening 50% 100% 50% 25%

External TemperatureThe external temperature sensor is used to season switch the system as shown below in the table.

The external temperature is used in real time for closing the systems, if the external temperature is below 5°C for the Frost Mode. If the external temperature is less than 8°C and the rain sensor activates, the system enters snow mode and closes the louvres. In addition, if required, dampers can be set to close when the internal temperature is at least 25°C and the external temperature is at least 5°C above the internal temperature in order to prevent a space from heating up due to higher outside air temperatures (i.e. 30°C outside, 25°C inside)

Current Calendar Season Spring Summer Autumn WinterExternal Temp (ET) Operational Season for Next 24 Hours

ET < 8°C Winter Spring Winter Winter8°C < ET < 15°C Spring Spring Autumn Winter

15°C < ET < 22°C Spring Summer Autumn SpringExt Temp > 22°C Summer Summer Summer Spring

Input Priority1 Fire Key Switch Highest2 Fire Alarm3 Competition Switch4 Override Open5 Override Close6 Rain/Snow/Frost Protection7 CO2

8 Heating Interlock9 Temperature Lowest

Wiring Examples (II) Control StrategyMonodraught Seasonal Control Strategy

Zone

#

DAMPER/LOUVRE0V 24VDMP. DMP. LVR.

WALL ACTUATOR0V 24V

0V 24V 0V 24V

SENSOR 1 SENSOR 2RS485

4-Co

re 0

.5m

m2 C

able

- RS

-660

-409

6/ F

arne

ll 24

4012

1(s

uppl

ied

and

fitte

d by

oth

ers)

LVR.

Sola-Boost Classic

Zone

#

DAMPER/LOUVRE0V 24VDMP. DMP. LVR.

WALL ACTUATOR0V 24V

0V 24V 0V 24V

SENSOR 1 SENSOR 2RS485

4-Co

re 0

.5m

m2 C

able

- RS

-660

-409

6/ F

arne

ll 24

4012

1(s

uppl

ied

and

fitte

d by

oth

ers)

LVR.

Wall Controller

SOLA-BOOST Classic CablingWire Colour Functionality

Blue 0V DC PowerGreen 0 - 10V Wall Controller SignalYellow 2 - 10V Damper ControlRed 24V DC Power

Wall Controller CablingWire Colour Functionality

Blue 0V DC PowerGreen 0 - 10V Wall Controller SignalRed 24V DC Power

Room Temperature Sensor CablingWire Colour Functionality

Blue 0V DC PowerGreen 0 - 10V Temperature SignalRed 24V DC Power

Zone

#

DAMPER/LOUVRE0V 24VDMP. DMP. LVR.

WALL ACTUATOR0V 24V

0V 24V 0V 24V

SENSOR 1 SENSOR 2RS485

4-Co

re 0

.5m

m2 C

able

- RS

-660

-409

6/ F

arne

ll 24

4012

1(s

uppl

ied

and

fitte

d by

oth

ers)

LVR.

Room Temperature Sensor

Note: When the local zone controller measures a temperature below 11°C it will report override closed to the iNVent 2 panel. Therefore temperature has priority 5 under these extreme conditions.

Rain Detection

The system will ignore temperature and CO2 control and fully close the louvres immediately on rain. Higher priorities should be actioned (override and fire, etc.)

Input Priorities