Air-to-water heat pump Thermia ITEC E-STANDARD 5 (ITEC E-S 5SP) – 1.06–5 kW, output up to 65 °C

Product detailed description

ITEC E-STANDARD 5 (ITEC E-S 5SP) is an inverter heat pump from Thermia's IVAR.HP iTec E range for single-family homes and apartments – for new constructions and renovated buildings with a heat loss of up to 19 kW. It consists of an external compact unit with a power of 1.06–5 kW and an internal unit in the STANDARD version. The frequency converter continuously adjusts the output to the current heat loss of the house.

Internal unit STANDARD

The STANDARD version includes only the control system with a display – a cabinet of 380 × 204 × 600 mm with a weight of 18 kg, power supply 230 V, circuit breaker 10 A. The circulation pump, switching valve, auxiliary heating, and hot water tank are not part of it and are resolved according to the project. It is mainly used in renovations, where the original components remain in the system, or in new buildings without hot water preparation by the heat pump.

Performance and efficiency

• SCOP 4.46 at 35 °C (floor heating) and 3.2 at 55 °C (radiators) for an average climate
• COP 4.85 at A7/W35, energy class A+++ at 35 °C and A++ at 55 °C
• water output temperature +15 to +65 °C, heating and hot water heating down to an outside temperature of −25 °C
• cooling in the basic equipment – 5 kW at A35/W18 (SEER 3.98), including a signal for the cooling/heating switching valve
• refrigerant R32 with GWP 675 (charge 1 kg), dual rotary BLDC compressor, electronic expansion valve, stainless steel plate condenser

External unit

Dimensions 880 × 310 × 798 mm (w × h × d), weight 58.5 kg, heating water connections 1" with external thread. Power supply 230 V 1~N 50 Hz, circuit breaker 13 A. Sound pressure level at a distance of 4 m is 44 dB(A), sound power 61 dB(A). The unit is mounted on a solid foundation and must not be placed in an enclosed space; condensate from defrosting is drained through a heated pipe, never into the sewer.

System design

• at least 120 l of heating water must be constantly available in the system for safe defrosting
• rated flow 7 l/min, pipe size min. 22 mm; flow sensor is part of the delivery
• control handles direct and mixed circuits, with an expansion card a second mixed circuit or pool heating
• cooperation with photovoltaics via Smart Grid (optional accessory), it is recommended to use the HPC software for dimensioning

Installation: Installation, electrical connections, and interventions in the refrigeration circuit with the slightly flammable refrigerant R32 may only be performed by qualified professionals.

Technical parameters

Frequently asked questions

What is included in the delivery?
External unit with condensate drain elbow, internal unit STANDARD, ball valve with filter, external temperature sensor, flow sensor, and documentation. Connection piping and flexible hoses are ordered separately as accessories.

Does the STANDARD version also prepare hot water?
The internal unit STANDARD includes only the control system, it does not have a circulation pump, switching valve, or tank – these components are added according to the project. If you want to have hot water preparation components in one cabinet, choose the PLUS version (with a separate tank) or TOTAL.

Can the heat pump also cool?
Yes, the cooling function is already included in the basic version, with a cooling capacity of 5 kW at A35/W18. Cooling circuits must be insulated with vapor-tight insulation to prevent condensation of moisture on them.

What maintenance does the heat pump require?
Check the pressure in the heating system once a month (0.8–1.5 bar), safety valves at least four times a year, and clean the dirt filter twice a year. Keep the external unit free of snow, ice, and leaves.