Key Features

Benefits

• Integrated cylinder and hydraulic components reduce separate plant requirements.
• Suitable for both low-temperature and higher-temperature heating circuits.
• R290 refrigerant system has low GWP and no refrigerant certification requirement for handling, as stated.

Technical Summary

Vaillant aroTHERM plus 5kW heat pump system, model VWL 55 / 6, supplied with uniTOWER VIH QW 190 / 6. Rated supply 230 V, 50 Hz, 1~/N/PE, maximum current 15.0 A, fuse size 16, RCD type A. Heating water temperature 20 to 75°C, maximum pipe length between outdoor and indoor unit 20 m. Refrigerant R290, fill quantity 0.9 kg, GWP 3. uniTOWER storage cylinder capacity 188 l, auxiliary heater 6 kW at 230 V / 9 kW at 400 V.

Installation Notes

Indoor uniTOWER footprint is 1880 x 599 x 693 mm and weighs 175 kg. Outdoor-to-indoor heating water pipe length is limited to 20 m. Minimum clearances and R290 opening/drain requirements are specified in the manufacturer datasheet. System uses a 230 V single-phase supply.

Efficiency

Declared energy efficiency class is A+++ at 35°C and A++ at 55°C. Combination with uniTOWER is class A++, with hot water supply class A. SCOP is stated up to 5.03. R290 refrigerant has GWP 3.