Évaluations - 3, GPA: 3.3
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Facilité d'utilisation
Condensation can form on the heat pump and air circuit if the humidity exceeds 50% and the external temperature is below O °C. If the heat pump is installed on an upper storey, the load-bearing capacity of the ceiling should be checked. On account of the acoustics, measures for isolating possible vibrations should also be very carefully planned in advance as well. Installation on a wooden floor is not recommended. 5.2 Condensed Water Pipe Condensed water that forms during operation must be drained off frost-free. The heat pump must be mounted on a level plane to guarantee proper drainage. The condensed water pipe must have a minimum diameter of 50 mm and should be fed frost-free into a sewer. Condensate should not be discharged directly into clearing tanks and cesspits because the aggressive vapours could destroy the evaporator. 5.3 Sound To prevent solid-borne sound from being transmitted to the heating system, we recommend connecting the heat pump to the heating system using a flexible hose. Installed air ducts should be sound-isolated from the heat pump to prevent the transmission of solid-borne sound to the ducts. .................................... 6 Installation 6.1 General Information The following connections need to be established on the heat pump: - Fresh and exhaust air -Flow and return flow of the heating system - Condensate outflow - Power supply 6.2 Air Connection ATTENTION! Do not restrict or block the area around the air intake or outlet. ATTENTION! Only operate the heat pump with the air ducts connected. The glass fibre reinforced concrete air ducts offered as accesso ries are moisture-resistant and diffusion-free. The sealing collar is used to seal the air ducts on the heat pump. The air ducts are not screwed directly onto the heat pump. Only the rubber seal comes into direct contact with the heat pump when the system is installed correctly. This guarantees easy assembly and disassembly of the heat pump and also ensures that solid-borne sound is well insulated. If another type of air duct is used, observe the external and internal dimensions as specified in the figure. Also ensure that the vibration and duct insulation are adequate. If flange-mounted air ducts are used, connecting stubs are secured on the air inlet and air outlet sides of the evaporator with 4 M8 x 16 hexagon bolts in the threaded holes provided. When doing this, ensure that both air duct stubs only touch the insulation. There should be no contact with the external sheeting. English E-5 6.3 English .......................................................................................... Antifreeze A method of manual drainage (see illustration) should be provided for heat pumps which are exposed to frost. The antifreeze function of the heat pump controller is active whenever the controller and the heat circulating pump are ready for operation. If the heat pump is taken out of service or in the event of a power failure, the system has to be drained. The heating circuit should be operated with a suitable antifreeze if heat pump systems are implemented in buildings where a power failure can not be detected (holiday home). The values in parentheses are valid for the LI 16TE 6.3 Heating System Connection The heating system connections on the heat pump have a 1." external thread. Use a spanner to firmly grip the transitions when connecting the heat pump. Before connecting the heating water system to the heat pump, the heating system must be flushed to remove any impurities, residue from sealants, etc. Any accumulation of deposits in the liquifier could cause the heat pump to completely break down. For systems in which the heating water flow can be shut off via the radiator or thermostat valves, an overflow valve must be installed in a heating bypass behind the heat pump by the customer. This ensures a minimum heating water flow rate through the heat pump and helps to avoid faults. Once the heating system has been installed, it must be filled, de- aerated and pressure-tested. Minimum heating water flow rate The minimum heating water flow rate through the heat pump must be assured in all operating states of the heating system. This can be accomplished, for example, by installing either a manifold without differential pressure or an overflow valve. The procedure for adjusting an overflow valve is described in the Chapter Start-Up. 6.4 Electrical Connection The power supply and control voltage are supplied using stand ard cables (load: 3-core, control: 3-core). For detailed instructions on how to connect the external components and how the heat pump controller functions, please refer to the device connection diagram and the operating manual supplied with the controller. A disconnecting device with a contact gap of at least 3 mm (e.g. utility blocking contactor or power contactor) as well as a 1-pole circuit breaker must be installed in the power supply of the heat pump by the customer (tripping current in compliance ...