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is of self-supporting construction and is made of 25 mm thick panels with polyurethane foam insulation. The cabinet and internal parts are made of a special material ALUZINC®, which is highly corrosion resistant and has an attractive appearance. Airtightness class 2. 160 mm diameter inlet and outlet ports for pipe connections. Revision access is located on the side of the cabinet.
Fans
Unit contains two radial fans with rearward curved blades with EC motor.
Motors
They are single-phase EC with low power consumption, 230 V / 50 Hz. IP54 protection.
Recuperation
The unit incorporates a counter-current aluminium heat exchanger with a ZZT efficiency of 85.5% (EHR 300 NA) or 83% (EHR 480 NA). The heat exchanger is accessible by removing the side panel. A unit with an NA/E enthalpy exchanger (moisture transfer) with ZZT efficiency up to 89% and ZZV efficiency up to 72% can be supplied on request. The unit includes automatic bypass of the heat exchanger (Bypass).
Filter
The unit is fitted with two plate filters with pressure switches F7 (ISO ePM2.5 70%) for fresh air intake and G4 (ISO ePM10 50%) for exhaust air.
Electrical connection
A three core 230 V / 50 Hz power cord is routed from the unit. The connection terminal block is on the side of the unit.
Mounting
The unit is designed for horizontal mounting indoors, under the ceiling or on the floor. The required ambient temperature is between 0° and 45°C. The unit must be mounted in such a way as to provide sufficient space for opening the unit lid, changing filters, connecting the condensate drain to the waste with a siphon odour stop and for carrying out periodic wiring inspections.
Regulation
The unit is supplied with a control system, which is available in CTR-S, EVO-PH or EVOD-PH-IP versions. The integrated control system allows for easy interchange of the individual control systems even after installation.
- CTR-S - 3 levels of speed setting and the possibility to switch off the unit. Automatic control of exchanger bypass. Filter clogging and fault indication.
- EVO-PH - colour backlit touchscreen to allow programming of the unit and instant status monitoring. Weekly programming. Can be controlled by external air quality sensors. Filter clogging indication. Error messages. Optional COP (Constant Pressure) or CAV (Constant Flow) control.
- EVOD-PH-IP - Same features as EVO-PH with the added option of MODBUS communication protocol with ETHERNET connection. Optional RS485 connection is also available. It allows the unit to be controlled by the parent system, in which case interaction with the unit is possible via a web browser.
Options
The unit comes in 2 sizes and is configured in a Plug&Play system. The units can also be supplied in mirrored versions (NA/M, NA/EM).
Accessories
- AF integrated active frost protection 1 kW
- MBE external reheat 1 kW
Instructions
On request, the unit can be supplemented with an external (piped) water or electric heater or a water cooler (special equipment). This option must be consulted before ordering.
Due to the high efficiency of the heat exchanger, reheating is usually not necessary. If necessary, an external 1 kW superheater can be used. In areas where temperatures are often below -5 °C, it is recommended to install a hot water heat exchanger or an integrated 1 kW AF electric air preheater for fresh air intake. After basic set-up by the installer, the unit requires no further adjustment. Demands on the user are minimal. Filter replacement is recommended at least once a year. When designing heat recovery units and using them in buildings with gas appliances cat. B appliances (open chamber gas boilers and water heaters) or with open firebox appliances burning solid or liquid fuels with flue gas exhaust to the chimney, the relevant professional standards and legal provisions must be observed.
Information
Small unit designed for residential ventilation, available in 2 sizes. The unit is designed for permanent operation.
Notice
The EHR 300 NA Econovent heat recovery unit is part of the New Green Savings Programme under the code SVT34618.
The EHR 480 NA Econovent heat recovery unit is part of the New Green Savings Programme under the code SVT34619.
Adherence to these instructions should not pose any safety, health or environmental risks in accordance with EC directives (CE marked). The same applies to other products used in the device or during installation. Consider the following warnings:
• Observe the safety instructions to prevent damage to the device or personal injury.
• The technical information in this manual must not be changed.
• It is forbidden to interfere with the motor of the device.
• In order for the device to comply with EC directives, the device must be connected to the mains in accordance with the applicable regulations.
• The device must be installed in such a way that under normal operating conditions it cannot come into contact with any moving part and / or live part.
• The device complies with the applicable regulations for the operation of electrical equipment.
• Always disconnect the device from the power supply before carrying out any work on it.
• Appropriate tools must be used when handling or maintaining the device.
• The device must only be used for the purposes for which it is intended.
• This appliance is not intended for use by children under 8 years of age and persons with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a responsible person. The user must ensure that children do not play with the device. Cleaning and maintenance of the appliance must not be carried out by children without supervision.
