Electric boiler TK eLG 6kW / 9kW - models IP20 / IP54 - wall mounting
The TK-eLG boiler is designed to support the heat pump. This device does not have a working thermostat (it has a protective thermostat), but instead passes the information from the temperature sensor to the thermoregulator of the heat pump. A heat pump thermoregulator makes a decision whether and when to turn on an electric heater. The electric boiler TK-eLG plays an important role for the proper operation of the heat pump using the eco-friendly gas R32 for which the standard does not allow the installation of electric heaters in the heat pump housing.
The heat pump control unit will activate the TK-eLG boiler in the following situations: 1. If the water temperature is less than ≈20 °C, the heat pump will not be able to start without preparation (heating) using an electric heater. 2. Defrost when the air temperature is low can be prolonged or unfeasible without the help of an electric heater. 3. On extremely cold days when the COP of the heat pump has the lowest value, el. the boiler is turned on as a support (backup) to keep the heating of the object at a comfortable level. 4. In case of failure (servicing) of the heat pump, the electric boiler takes over the heating of the building – until the pump is in operation.
The TK-eLG boiler is designed for wall mounting. Model IP20 (6kW-9kW is intended for internal Assembly and is fixed to the wall using the supplied mounting set. Model IP54 (6kW) it is intended for external mounting. Thanks to the high degree of protection (IP54) it can be mounted in the immediate vicinity of the heat pump, which simplifies the performance of hydraulic installation and does not disturb the interior of a residential building. It is produced in two variants with hydraulic fittings on the left or right side of the boiler. When designing and installing, take special care in choosing the IP54 model whether the hydraulic jacks are on the left or right side of the boiler.
| model | the number of degrees of strength | divide the degree of strength | connection voltage | degree of protection. | required fuses | min. cross-section of power cable | max. allowed operating pressure | min. allowed operating pressure | max. boiler temperature | the water in the boiler | pushrod connector | return water connection | waterless device mass | monophase connection |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TK-eLG 6kW | 2 / 4 / 6 | 1N ~ 230V 50Hz / 3N~400 / 230V 50Hz | IP20 / IP54 | 3 x 16 | 5 x 2.5 mm2 | 3 Bar | 0.5 bar | 4.5 liters | DN25 (5/4 – - (1) SN | DN25 (5/4 – - (1) SN | IP20-9kg; IP54-14kg | yes-use the manual | ||
| TK-eLG 9kW | 3 / 6 / 9 | 1N ~ 230V 50Hz / 3N~400 / 230V 50Hz | IP20 | 3 x 16 | 5 x 2.5 mm2 | 3 Bar | 0.5 bar | 4.5 liters | DN25 (5/4) | DN25 (5/4) | IP20-10kg | yes-use the manual |