1 The Air Handling Unit For All Seasons www.systemair.deMaxi Comfort 800

2 Contents Always a good climate 3 Climate control unit 4 Unit description 5 Diagram 6 Technical data 7 Advantages of Maxi Comfort 800 8 Functional description 9 • COOLING-function 10 • VENTILATION-function / FREE COOLING 10 • HEAT PUMP-function (heating) 11 Air flows / Sketch of functioning principle, interconnected operation 12 The four ventilation functions 13 Operation in a single-family dwelling 14 Air flows / Sketch of functioning principle, single-family dwelling 15 Dimensions 16 • False ceiling unit 16 • Visible unit 16 Electrical connections 17 Accessories 17 Wiring diagram 18

3 Always a good climate The Systemair Maxi Comfort 800 is a monoenergetic or bivalent all-year heat pump including controller. The unit ventilates, cools, heats, regulates supply and exhaust air flows, mixes, filters and saves energy thanks to its intelligent electronics. Its compact design means that no further installation work is necessary on the unit. It only requires a mains power connection and a connection for the condensate drain. This allows rapid installation and simple commissioning of the unit, which is tested and ready for service, and only needs to be plugged in. It is also possible...

4 Climate control unit The Maxi Comfort 800 is controlled by a preprogrammed control unit with flash memory. It can be used to control up to five units (1 master, 4 slaves) automatically or manually. A separate electricity consumption optimisation function is integrated, as well as a run time and error message protocol display. All information and queries concerning the required mode can be displayed and modified using the cable remote control with LCD display and external keys. Case dimensions: (W x H x D) 156 x 82 x 31 mm The control panel consists of a control and indicator display with input...

5 Unit description The multi-function Maxi Comfort 800 unit with heat recovery in compressor mode is generally available in two versions: • As a false ceiling unit with three air vents towards the inside (recirculating, inlet and extracted air) and three air vents towards the outside (discharge and 2 x external air), each DN 250. • As a visible unit with blow grid towards the room and three air vents towards the outside (discharge and 2 x external air), each DN 250. The speed adjustment of the single inlet radial fans with forward curved blades is linear and stepless from 0-100%. The motor is...

6 Diagram 0 0,1 0,2 0,3 0,4 0 200 400 600 800 1000 1200 1400 250 200 150 100 50 0 Maxi Comfort 800 2 1 External air flow at 100 % Recirculating air flow at 100 % 1 2 Sound power level Mid-frequency band, Hz LwA, dB (A) Tot 63 125 250 500 1k 2k 4k 8k 57 34 39 50 52 53 48 41 34 Casing: The casing is made of sheet steel (powdercoated, RAL 9010) with 10/15 mm insulation. Air mixing chambers insulated on the inlet and outlet air sides with motor-operated, insulated flaps that are airtight to the outside (0-100%) ensure low-noise operation. When the unit is switched off, the external air connections...

7 Technical Data Maxi Comfort 800 Motor compressor Rolling piston compressor, fully hermetic Refrigerant R407C Ventilation functions Supply air [m³/h] 300 - 850, infinitely variable Extract air [m³/h] 300 - 850, infinitely variable Mixed air [m³/h] 300 - 850, infinitely variable Fresh air (Option over-/underpressure) [m³/h] 300 - 850, infinitely variable Air conditioning functions Refrigerating capacity [W] acc. to DIN 8957 max. 4.500 Heat pump [W] at L7/L20 max. 4.700 (COP 2,9) Additional electric heater [W] 2.000 Air capacity [m³/h] 300 - 850, infinitely variable Fresh air [%] variable, 0 -...

8 Consultant Simple conceptual d • esign of an installation with the functions of cooling, heating and ventilation with defined capacity ranges in one standardised product. • Delivered ready for connection and operation; no supply lines need to be installed for heating or cooling, therefore no installation requiring different installers. • No unsightly external unit (condenser unit) required for cooling; the unit does not need to be filled with refrigerant on site. Installer • Fast and simple calculation and installation without ancillary work for supply connections. • Compact unit, few accessories...

9 Functional description Comfort mode This mode offers maximum comfort and does not require any previous experience on the part of the user. The user only has to enter the required room temperature (temperature range from 18 - 25 °C). A standard value is displayed. A desired proportion of fresh air can also be added (recommended: 30 - 40 %); the same percentage is also automatically carried over to the extracted air. The unit itself detects whether it is necessary to heat up or to cool down, and which mode is most practical in terms of ecology and cost-effectiveness. As soon as the required room...

10 COOLING-function Fresh air 40 % If the room temperature is higher than the preset standard temperature, the room air is cooled and also dehumidified. This causes the air to be cleaned and thus leads to an improvement in the quality of the air. In this mode, a fresh air proportion of max. 40% is recommended. Fresh air and extracted a • ir adjustable 0-100 % VENTILATION-function / FREE COOLING Energy-saving and cost-saving cooling without compressor, with 100% fresh air. This type of cooling can and should be used if the room temperature is above the standard temperature and also the external...

11 Very much energy can be saved with this type of heating, since the majority of the incoming heat is taken from the ambient air and only a small amount of electrical energy is required (recommended: max. 40% fresh air, minimum temperature for use = approx. -15°C). Optimum operation is possible at external temperatures of +5°C to +15°C. This is when the Maxi Comfort 800 works most efficiently. Fresh air and extracted a • ir adjustable 0-100 % Supply air Inside Outside Recirculating air Fresh air Extract air Exhaust air Outside air Electric heater Heating with electrical heating battery without...