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• Download the latest firmware version: Modbus. • Download complete Modbus register: FIRMWARE MODBUS HERU IQ Control App. • Download the app: APPLE GOOGLE • Download wiring diagrams via the links below HERU S HERU T www.ostberg.com Information about the products at 1270522_1...
Safety | EN 1 Safety 1 .1 Warnings WARNING! A warning states a risk of personal injury. CAUTION! A caution states a risk of damage to equipment. 1 .2 General safety WARNING! All electrical installations must be performed by a qualified electrician. WARNING! Power must be cut to the unit for two minutes before work can be started.
EN | Safety WARNING! Pay attention to the weight of the unit and its parts during mounting and maintenance. WARNING! Rotating, hot and electrical components can cause serious injuries. WARNING! Ducts must be connected and doors/cover must be closed and locked before starting up the unit.
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Industrigatan 2 SE-774 35 Avesta, Sweden Tel No +46 226 860 00 Fax No +46 226 860 05 http://www.ostberg.com info@ostberg.com VAT No SE556301220101 Products: Bidirectional ventilation unit RVU: HERU® 95 T EC, HERU® 100 T EC, HERU® 160 T EC, HERU®...
EN | Transport and storage 2 Transport and storage 2 .1 General The HERU unit must be stored in a protected and dry space before installation. 2 .2 Checking the delivery Inspect the unit carefully upon delivery to check for any damage that may have occurred during transport.
Installation | EN 3 Installation WARNING! Power must be cut to the unit for two minutes before work can be started. WARNING! Make sure that the electricity is switched off during the entire assembly process. WARNING! The unit may not be started until the installation is completely finished and the ducts have been connected.
EN | Installation 3 .1 System overview CAUTION! The commissioning protocols must be completed for the warranty to apply. Available at the end of the manual. HERU S for placement in warm or cold space, e .g . in the attic . 1.
Installation | EN 3 .2 Preparation and placement When placing the ventilation unit, make sure that there is enough space to open doors and lids, to access or replace filters, fans, rotors and connections. Observe dimension (A) especially when mounting the HERU S on attics and under pitched roofs.
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EN | Installation HERU S View C – Dimensional sketch. View D – Dimensions with removed filter. View E – Service areas. Dimensions for HERU S Model (mm) HERU 100 S EC 1000 HERU 160 S EC 1038 1131 1000 HERU 200 S EC 1456 1250...
Installation | EN 3 .3 Internet connection Make sure that a RJ-45 LAN cable or RJ-45 WiFi dongle is available for connecting the unit to the internet (port marked LAN). This is optional, but will ensure full remote access to the unit via the app. Without internet connection, the unit can only be locally controlled via Bluetooth.
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EN | Installation Tool • Torx T25 screwdriver. • Flat-blade screwdriver/13 mm socket . Remove the lid of the unit . 1. Remove the plastic corner cover. 2. Unscrew the screws holding the unit lid. 3. Lift off the lid. Remove the rotor cassette .
Installation | EN 3 .4 .2 Installation HERU S CAUTION! The cooker hood must not be connected to the unit due to the increased cleaning requirement. • Place insulation board on the installation surface. • The dimensions, see section ”3 .2 Preparation and placement” page 11, must be followed. •...
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EN | Installation Placing Installing HERU S with the lid upwards (A) or to the side (B). WARNING! Do not install the unit vertically or with the cover downwards due to the risk of injury. NOTE! Ensure that there is space for service and maintenance around the unit. See ”3 .2 Preparation and placement”...
Installation | EN 3 .4 .3 Connect the ducts to the unit . Use a pipe clip or flange with surrounding insulation. 3 .4 .4 Install the duct sensor GT7 Mount the duct sensor GT7 in the supply air duct. See ”7 Control diagram” page 42. - Prepare the channel.
EN | Installation 3 .4 .6 Opposite flow direction NOTE! The unit is configured for airflow in the standard direction on delivery. The electric heater must be moved if the airflow needs to be changed to the opposite direction. Tool •...
Installation | EN 3 .4 .7 Mounting the parts after installing HERU S Tool • Torx T25 screwdriver. Mount the fans. 1. Insert the fans. 2. Screw in the fans with the Torx T25 screws. 3. Connect the fans’ quick connectors. Mount the rotor cassette .
EN | Installation 3 .5 HERU T 3 .5 .1 Disassemble the unit to reduce the weight when installing HERU T Method for dismounting unit 1. Upper and lower door screw 2. The unit’s doors 3. The rotor cassette’s quick connector 4.
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Installation | EN Dismount the unit’s doors 1. Open the doors. 2. Unscrew the screws. 3. Hold the door and remove the upper and lower screws. Pull the door outwards (1) to release it from the unit. Remove the rotor cassette . 4.
EN | Installation 3 .5 .2 Installation HERU T • The mounting distance, see ”3 .2 Preparation and placement” page must be followed. • HERU T must be mounted in a warm space. • Local regulations for placing, access and electrical connections must be followed when installing HERU T. •...
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Installation | EN Wall mounted HERU 100 T and 160 T Install HERU T with the duct connections upwards (A) or to the side with the doors upwards (B). WARNING! Do not install the unit with the duct connections or the doors down toward the ground due to the risk of injury.
EN | Installation Floor standing HERU 160 T with floor stand as an accessory NOTE! The base for the unit must be level and stable. NOTE! The Novibra mat accessory can be placed under the feet to minimise vibrations from the floor joists. 1.
Installation | EN WARNING! Ensure that the installation fulfils local and national fire safety requirements. CAUTION! A cooker hood connected to HERU T must not have an integrated fan. CAUTION! A cooker hood must NOT be connected to HERU 200 and 300 T. 1.
EN | Installation 3 .5 .6 Mounting the parts after installing HERU T Tool • Torx T25 screwdriver • Hex key 4 mm with ball end Mount the fans. 1. Insert the fans. 2. Screw tight the Torx T25 screws on fans. 3.
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Installation | EN Mount the doors . 6. Secure the doors on the unit. 7. Press in the door hinges into the hinge brackets. 8. Hold the doors, and screw in the upper and lower screws. 9. Then screw the locking screws. Close the doors .
EN | Installation 3 .6 Connecting the unit to the power source WARNING! The unit must always be equipped with a type A or B, 30 mA residual current device (RCD). Units without plugs must be installed with a safety switch, which must be mounted close by. WARNING! Units with plugs must be fused with a C10 A fuse.
Installation | EN Connecting Modbus to HERU T: 1. Connect GND to 0. CAUTION! If conductor is connected to terminal 0 and voltage potential is present, it will damage the equipment 2. Connect Rx-/Tx- to B. 3. Connect Rx+/Tx+ to A. NOTE! For more information on how to configure Modbus via the IQ Control App, see “4 .8 Configuring the unit for Modbus”...
Register. 10. Enter both email address and password and accept the terms of use. A verification email from iqcloud@ostberg.com will then be sent to the selected email address. View A & B 11. Verify the email address by entering the verification code in the field and click confirm.
Commissioning | SE 4 .1 .2 Delete user Use the menu to remove an active user and when changing users. View D. View D View E View F 4 .1 .3 Change Password If you want to change your current password, this is done under the Settings tab and then under the Users menu. Click Change Password.
SE | Commissioning 4 .2 Connection via IQC Bluetooth module Via the IQC Bluetooth module, you are given the oppor- tunity to control your unit via Bluetooth. However, only 1 person can be connected to the IQC Bluetooth module and control the unit at a time.
Commissioning | SE 4 .3 Connection via Cloud View N View O View P View Q View R Regardless of whether you have a display or an IQC Bluetooth module, you can also connect your unit to the Cloud. However, it is required that you have internet for your unit. To connect your unit via the cloud, start by: 1.
Cloud. See the following steps for updating via an Android phone. 1. Go to ostberg.com/update on your phone and download the update file. The file consists of a Zip file. 2. Log in to the HERU IQ app and then go to the Settings tab.
IQC Bluetooth module. See the following steps for updating via a MAC computer. 1. Download the update program HeruIQ FWupdate on the App store. 2. Then go to ostberg.com/update and download the update file, heruiq.zip. 3. Open the program HeruIQ FWupdate.
EN | Commissioning 4 .6 Configuring the unit Prepare the configuration by having values for the following parameters at hand: • Type of heater • Heater, choose Electric. Water is a possible choice if a external heating coil is installed. •...
4 .8 .1 Configuring the unit for Modbus via RS485 ID and baud rate must be configured to comply with the Modbus Network. Download the complete Modbus register here: https://www.ostberg.com. Open the main menu, select [Service] . Log in Enter code [1991].
EN | Connections main board 6 Connections main board 1270522_1...
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Connections main board | EN Pos . PCB label Description Internal temperature sensor Internal temperature sensor Internal temperature sensor Internal temperature sensor Freeze protection sensor Supply duct sensor (GT7) Room sensor (GT8) Display port RJ45 (black) I/O Bus I/O Bus RS 485 Modbus (slave) Preheater control output Afterheater control output...
EN | Control diagram 7 Control diagram 1 HERU unit 2 Room 3 Rotating heat exchanger 4 Filter 5 Control central containing relay board 6 Electric heater 7 Heating coil 8 Cooling coil 9 Electric expansion board NOTE! GT7* Temperature sensor location for HERU T. GT7 Temperature sensor location for HERU S and when HERU T has a heating / cooling coil mounted after the unit.
EN | Commissioning Protocol HERU S /T Appendix 1 Commissioning Protocol HERU S /T This commissioning protocol aims to ensure a correct installation of the product. The checklist helps a service technician / installer to carry out important checks, but is also used as a basis for handing over the completed installation to the end user.
EN | IQ Control App – Setup Wizard Appendix 2 IQ Control App – Setup Wizard 1 Installation Setup Wizard The Setup Wizard is a easy setup tool for your HERU air handling unit. Follow the steps. You fi nd it under: Settings > Service > code 1991 > Setup Wizard. Choose Settings Choose Service Write 1991...
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EN | IQ Control App – Setup Wizard 1 .1 Step 1 – RH/CO2/VOC Boost Sensor type Select the type of sensor and set the limit value for when fan compensation will activate. If the limit value is exceed- ed, the supply and exhaust air fl ow will be increased steplessly.
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EN | IQ Control App – Setup Wizard Setup Wizard – 2 – After heater – choices Setup Wizard – 2 – Pre heater– choices Setup Wizard – 2 – Cooling – choices 1 .3 Step 3 – Temp regulation Regulation Type Exhaust S/W and Room S/W •...
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EN | IQ Control App – Setup Wizard Setup Wizard – 3 – Temp regulation – choices 1 .4 Step 4 – Temp set point & Supply temp low Set point Max limit: Set a maximum limit on the tem- perature set point setting.
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EN | IQ Control App – Setup Wizard 1 .5 Step 5 – Switches External inputs – Contact External inputs - Signal Automatic reset allows the function: type: unit to return to normal op- Choice of contact function eration automatically when Choice of signal type from from external equipment.
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EN | IQ Control App – Setup Wizard 1 .6 Step 6 – Alarm class Alarm outputs: Settings of which alarm class that respective alarm should • A-relay state: Contact have. function during normal operation. • B-relay state: Contact Two levels can function during normal be selected: operation.
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EN | IQ Control App – Setup Wizard 1 .8 Step 8 – Dampers Damper: Opening time setting for dampers. Acts as start-up delay of the extract air fan to allow time for dampers to open. For opening times, see sep- arate data sheet for damper motor.
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EN | IQ Control App – Setup Wizard 1 .10 Step 10 – Standard fan speed Standard fan speed: When entering the setup page, all program param- eters that affect the fl ow of the fans are temporarily deactivated and the pro- gram is entering adjust- ment mode.
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EN | IQ Control App – Setup Wizard 1 .12 Step 12 – Max fan speed Max Speed: When entering the setup page, all program param- eters that affect the fl ow of the fans are temporarily deactivated and the pro- gram is entering adjust- ment mode.
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H ÖSTBERG AB Box 54, SE-774 22 Avesta, Sweden Phone: +46 226 860 00 E-mail: info@ostberg.com www.ostberg.com...
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