Heating and Cooling
A big part of having a comfortable household is having good air quality and comfortable air temperature.
Mechanical Ventilation with Heat Recovery Systems are an efficient way of providing the necessary ventilation with very few heat losses on the increasingly airtighter dwellings. However, these can also be used for space heating or back up heating.
MVHR Systems
Either you are looking for help to cool down your house during the summer or to help heat it up during the winter CVC can provide several solutions that can be combined with your MVHR system supplying the whole house with excellent air quality as well as a pleasant temperature.
As only limited heat can be transferred by air, the heat load of the house has to be very low in order to use air heating as the only heating system so this normally can only be achieved in a Passivhaus dwelling where the PHPP provided by a certified Passivhaus designer shows that heating via air is possible.
Heating Capacity [kW]
| Water Range [°C] | Air suction temperature [°C] | |||||||
|---|---|---|---|---|---|---|---|---|
| Nominal | Maximum | |||||||
| 400 m3/h | 450 m3/h | |||||||
| +16 | +18 | +20 | +22 | +16 | +18 | +20 | +22 | |
| 45/35 | 2.86 | 2.60 | 2.34 | 2.10 | 3.11 | 2.80 | 2.52 | 2.21 |
| 45/40 | 3.30 | 3.01 | 2.76 | 2.50 | 3.56 | 3.28 | 3.00 | 2.69 |
| 50/35 | 3.07 | 2.81 | 2.52 | 2.26 | 3.30 | 3.02 | 2.72 | 2.41 |
| 70/50 | 5.30 | 5.02 | 4.73 | 4.45 | 5.71 | 5.40 | 5.10 | 4.79 |
Cooling Capacity [kW]
| Specification | Value | |
|---|---|---|
| Water Range [°C] | 7/11 | |
| Air suction temperature [°C] | 22 | |
| Nominal | Maximum | |
| Flow rate [m3/h] | 400 | 450 |
| Cooling capacity [kW] | 1.49/1.59 | 1.65/1.75 |
| Water capacity [l/h] | 342 | 376 |
| Water pressure head [kPa] | 3.63 | 4.32 |
Air Comfort
The Air Comfort system module is part of the central ventilation system and can be connected to almost any hot water system, for instance, the central heating boiler, district heating, or a reversible heat pump.
Together with the ventilation appliance, the Air Comfort supplies fresh air ventilation with additional heating or additional cooling.
In order to achieve a perfect interior climate with a constant room temperature, the air flow is automatically adjusted according to the discharge temperature.
Electric post heaters are mainly installed to suplement the heat losses on the MVHR heat exchanger and are mounted on the supply air ducting.
For buildings following PassivHaus guidelines and design, it is common to use a post heater on the MVHR supply duct.
Water to air post heater/coolers are mounted on your supply air ducting and connected to the water heating/cooling system.
While used together with a reversible heat pump this module can easily supplement the losses on the heat exchanger and still provide some additional heating and cooling to increase comfort in the house.
The output for this module is highly dependant on the volume of air and water. A 2kW output can be achieved with an airflow of 250m3/h and water flow at 50°C of 200l/h.
The module is usually controlled by a room thermostat operating either a dedicated pump or motorised valve.
Other Ventilation Products
At CVC Ltd we design, deliver and install your complete ventilation project or heating recovery system. Take a look at some of the other ventilation products that we can install in your next home. If you’d like advice on selecting the right home ventilation solution, please get in touch.