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The Vents MPA 800 V unit with a water heater is intended for use as part of a supply ventilation system. The supply unit is capable of supplying outside air with a nominal capacity of750 m3/h. The supply air is prepared in the installation - filtered and heated to the required temperature. The unit is connected to air ducts or other ventilation elements with a cross-section of 400x200 mm.
House
The body of the Vents MPA 800 V unit is made of aluminum-zinc steel, which is more durable compared to conventional galvanized steel. To prevent heat loss and reduce noise levels, the unit body is insulated with 25 mm thick mineral wool. To allow for service maintenance, one of the walls of the unit can be opened.
Filter
To prevent pollutants in the outside air from entering the ventilation system, the unit is equipped with a filter with a replaceable cassette. Filtration class G4.
Heater
Heating of the supply air in the cold season is carried out using a built-in water heater.
Fan
In the installation A centrifugal fan with forward-curved blades is used. To protect the fan motor, thermal protection with automatic restart is provided. Electric motors use ball bearings. Sealed rolling bearings require virtually no maintenance. Their service life is up to 40,000 hours.
Installation control
The unit comes with a built-in automation system based on the controller.
Functions of the built-in automation system for the air supply unit
- turning the unit on and off
- protecting the air heater from freezing
- signaling the need to clean filters or replace them
- the ability to adjust the performance of the air handling unit. Step adjustment - 3 speeds are possible.
- operation of the unit by timer
- maintaining the set supply air temperature by influencing the drive of a three-way valve that regulates the supply of coolant to the liquid heater
- control and monitoring of the operation of an external circulation pump installed on the coolant supply line to the liquid heater (mixing unit pump),
- stopping the system upon command from the fire alarm panel
- controlling the air valve drive li>
If there is a mixing unit, the control panel allows you to maintain the set air temperature in the room by changing the coolant flow through the air heater. The use of a mixing unit with a pump allows the previously described regulation to be carried out when the coolant pressure difference in the forward and return lines is less than 40 kPa. The mixing unit with pump helps prevent the heat exchanger from freezing and provides additional time for operational measures in the event of an emergency. (The mixing unit must be ordered separately.)
Installation
The air handling unit can be placed in utility rooms (balcony, loggia, dressing room) or in the main rooms under the ceiling or in niche.
The unit can be mounted on the floor, ceiling or wall using brackets. During installation, it must be taken into account that access to the installation is required for servicing, i.e. it is necessary to provide an inspection hatch or another method.
Using the installation using the example of office ventilation

An MPA supply unit is installed in the ceiling space. For air intake and exhaust, holes are made in the outer walls. Fresh air passes through the external grille, enters the unit, where it is filtered, if necessary, heated to the required temperature and from the unit is supplied through a network of air ducts through grilles to the offices. Air is removed using an exhaust fan through a network of air ducts. Thus, with the help of a supply unit and an exhaust fan, the required calculated air exchange is carried out to ensure comfortable ventilation in office premises.
Technical characteristics
| Parameter | Value |
| Voltage, V | 230 | tr>
| Current frequency, Hz | 50 |
| Maximum fan power, W | 245 |
| Fan current, A | 1.08 | tr>
| Total power of the installation, W | 245 | tr>
| Total current, A | 1.08 | < /tr>
| Capacity, m3/h | 750 |
| Rotation speed, min-1 | 1650 |
| Noise level at a distance of 3 m, dB( A) | 35 |
| Maximum temperature of transported air, C | -40....+45 | < /tr>
| Weight, kg | 41.3 | < /tr>
| Size of connected air duct, mm | 400x200 |
Overall dimensions

| Dimensions | B | B1 | B2 | B3 | < strong>H | H1 | < td style='text-align: center, background-color: #b7c0c2,'>H2L | L1 | |
| mm | 400 | 420 | 540 | 500 | 200 | 220 | 352 | 650 | 530 |

Documentation
Installation passport
Guide to the air handling unit automation system
| Characteristic | |
| Type of heater | Water |
| Efficiency | 750 cubic meters/hour |
| The size of the rectangular channel | 400x200 mm |
Payment terms and order preparation
At DOMIS.PRO, we offer different payment terms depending on the product type, its availability and the characteristics of each order.
Different payment arrangements may apply to products in stock, made-to-order items and custom-manufactured products.
Any required deposit, payment deadlines and preparation or manufacturing conditions will be communicated to the customer before the order is confirmed and stated in the quotation or relevant contractual documentation.
Payment methods
Available payment methods may include:
- Bizum.
- Apple Pay.
- Visa and Mastercard bank cards.
- SEPA bank transfer.
- International SWIFT bank transfer.
The availability of each payment method will be indicated during checkout or in the relevant quotation.
Bank transfer details
Beneficiary: Domis Iberica Pro S.L.
NIF: B16460271
VAT identification number: ESB16460271
The bank details required to make a transfer will be provided on the invoice, quotation or order confirmation.
We recommend including the order number or quotation reference in the payment description.
VAT and invoicing
Prices and taxes are applied in accordance with current tax legislation.
Certain intra-Community supplies and exports outside the European Union may be exempt from Spanish VAT when legal requirements are met and supporting documentation is available.
Delivery outside Spain does not automatically qualify for VAT exemption. The applicable tax treatment will be determined before the order is confirmed.
Delivery and transport
Products may be delivered using DOMIS.PRO's own transport or through specialised transport companies and logistics operators.
Shipping costs, delivery times and transport conditions depend on the destination, product availability, dimensions, weight and characteristics.
This information will be communicated to the customer before order confirmation or included in the relevant quotation.
Bulky products and special deliveries
Some products, such as large-format SPC and WPC decorative panels, profiles, windows, doors and pergolas, may require specialised transport or specific unloading arrangements.
Where additional services are required, such as lifting equipment, special unloading or access by specific vehicles, the conditions and costs will be communicated to the customer in advance.
Order collection
Collection of products from our premises may be arranged when this option is available and has been confirmed in advance by DOMIS.PRO.
The collection location, date and time will be agreed before handover.
Payment and delivery enquiries
If you need information about payment terms, availability, transport or product delivery, please contact our team.
Domis Iberica Pro S.L.
NIF: B16460271
Address: Av. de la Pau 45, puerta 24B, 46730 Gandia, Valencia, Spain.
Email: info@domis.pro