Air-to-water heat pump THERMIA ATHENA 18HC TOTAL – 18 kW, up to 65 °C, 300 L DHW tank, with cooling – SPECIAL OFFER

Product detailed description

THERMIA ATHENA 18HC TOTAL (code IHPA18HCT3) is a premium inverter air-to-water heat pump system from Thermia ATHENA: an outdoor compact unit ATHENA 18HC with proven refrigerant R410A and an indoor unit TOTAL. The HC model is also able to cool the house – cooling works at outside temperatures from +15 to +37 °C. The ATHENA range is suitable for new buildings and renovations with heat loss up to 18 kW.

Outdoor unit ATHENA 18HC

• heating capacity 7.85–17.5 kW; at A7/W35 12.85 kW, at A7/W65 17.5 kW and at A-7/W35 12.86 kW
• COP 5.09 at A7/W35, SCOP 4.76 / 3.67 at 35 / 55 °C in average climate (4.08 / 3.2 in cold climate), energy class A+++ / A++
• EVI technology and inverter-controlled scroll compressor Copeland – water up to 65 °C, operation at outside temperatures from -20 to +37 °C
• refrigerant R410A (charge 5.5 kg), electronic expansion valve, stainless steel plate condenser and energy-saving fan with EC motor and variable speed
• sound pressure level 48 / 32 / 28 dB(A) at a distance of 1 / 5 / 10 m, dimensions 1495 × 593 × 1045 mm, weight 188 kg

Indoor unit TOTAL

Includes the control system GENESIS with a color touch display, switching valve for heating/TV, circulation pump, built-in auxiliary heating and a stainless steel hot water tank 300 l with TWS technology, which provides up to 417 l of water at 40 °C. The unit weight is 123 kg. It controls one direct and one mixed heating circuit, and with an expansion card also pool heating. Modbus is available for superior building control, built-in Smart Grid function for photovoltaics and remote monitoring Thermia Online.

Design and installation

The capacity is designed in the Thermia HPC program. The outdoor unit is installed 300 – 500 mm in front of a wall at least 250 mm thick, which protects it from the wind; it is connected to the indoor unit by a pipe Ø 28 mm up to 15 m long. The recommended water volume in the system is 180 l. The delivery includes a magnetic filter, the connecting set IHP086U567AH is ordered separately. The indoor unit belongs to a frost-free area with a floor drain, on a floor with sufficient load capacity. Installation and commissioning is carried out by a professional company.

Technical parameters

Frequently asked questions

What is the difference between versions TOTAL, TOTAL +60 and TOTAL COMPACT?
TOTAL has a hot water tank of 300 l. TOTAL +60 has a tank of 180 l and additionally an accumulator tank of 60 l, expansion vessel of 12 l and a circulation pump for the heating system. TOTAL COMPACT has a tank of 180 l in a reduced cabinet.

Can the heat pump ATHENA 18HC TOTAL also cool?
Yes, the HC model has a built-in cooling function, which works at outside temperatures from +15 to +37 °C. It controls a switching valve for cooling/heating, through which a cooling tank can be connected.

How far can the outdoor unit be from the indoor unit?
The units can be connected by a pipe Ø 28 mm with a maximum length of 15 m; smaller dimensions are not allowed by the manufacturer.

How noisy is the outdoor unit?
The sound pressure level is 48 dB(A) at a distance of 1 m, 32 dB(A) at 5 m and 28 dB(A) at 10 m. The manufacturer recommends not to place it near windows of living rooms or facing neighbors.