Air-to-water heat pump THERMIA ATHENA 18HC TOTAL COMPACT – 18 kW, up to 65 °C, 180 l DHW cylinder, with cooling – SALE

Product detailed description

The THERMIA ATHENA 18HC TOTAL COMPACT (code IHPA18HCTC) is a premium Thermia ATHENA inverter air-to-water heat pump package: the ATHENA 18HC compact outdoor unit with proven R410A refrigerant and the TOTAL COMPACT indoor unit. The HC model can also cool the house – cooling operates at outdoor temperatures from +15 to +37 °C. The ATHENA range is designed for new and renovated buildings with heat losses up to 18 kW.

ATHENA 18HC outdoor unit

• heating output 7.85–17.5 kW; 12.85 kW at A7/W35, 17.5 kW at A7/W65 and 12.86 kW at A-7/W35
• 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 Copeland scroll compressor – water up to 65 °C, operation at outdoor temperatures from -20 to +37 °C
• R410A refrigerant (charge 5.5 kg), electronic expansion valve, stainless steel plate condenser and an efficient variable-speed fan with EC motor
• sound pressure 48 / 32 / 28 dB(A) at 1 / 5 / 10 m, dimensions 1495 × 593 × 1045 mm, weight 188 kg

TOTAL COMPACT indoor unit

It contains the GENESIS control with colour touch screen, heating/DHW diverter valve, circulation pump, built-in auxiliary heater and a 180 l stainless steel DHW cylinder with TWS technology in a lower cabinet with no free space at the bottom. The cylinder delivers 254 l of water at 40 °C; the unit weighs 96.5 kg. It controls one direct and one mixed heating circuit, and with the expansion card also pool heating. Modbus for building management, a built-in Smart Grid function for photovoltaics and Thermia Online remote monitoring are available.

Sizing and installation

Output is sized with Thermia HPC. The outdoor unit is placed 300–500 mm in front of a wall at least 250 mm thick that shields it from wind; it is connected to the indoor unit by Ø 28 mm pipe no longer than 15 m. The recommended system water volume is 180 l. A magnetic filter is supplied; the IHP086U567AH connection fitting is ordered separately. The indoor unit belongs in a frost-free room with a floor drain, on a floor with sufficient load-bearing capacity. Installation and commissioning are carried out by a qualified company.

Technical data

Frequently asked questions

What is the difference between the TOTAL, TOTAL +60 and TOTAL COMPACT versions?
TOTAL has a 300 l DHW cylinder. TOTAL +60 has a 180 l cylinder plus a 60 l buffer tank, a 12 l expansion vessel and a heating circuit pump. TOTAL COMPACT has a 180 l cylinder in a lower cabinet.

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

How far can the outdoor unit be from the indoor unit?
The units can be connected by Ø 28 mm pipe up to 15 m long; the manufacturer does not permit a smaller size.

How loud is the outdoor unit?
The sound pressure is 48 dB(A) at 1 m, 32 dB(A) at 5 m and 28 dB(A) at 10 m. The manufacturer advises against placing it near bedroom windows or facing neighbours.