Domusa Dual Clima HT EC Pro: outdoor unit and Easy Connect indoor module (sold separately), to scale
Domusa Dual Clima HT EC Pro dimensions: dimensioned views, measurements by model and hydraulic connections
Inside the Domusa Dual Clima HT Pro and HT EC Pro monobloc unit: fan, compressor and R290 circuit
Domusa Dual Clima HT Pro and HT EC Pro outdoor unit on a white background
Domusa Dual Clima HT Pro and HT EC Pro outdoor unit installed on a terrace

Domusa Dual Clima HT EC Pro R290 heat pump for Easy Connect, 6 to 22 kW

Model
Regular price€5.148,73
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Shipping calculated at checkout.

  • 2 in stock
  • Backordered, shipping soon

At Q-TECH, we apply the same clear rules for everyone: the law protects you, and when applied correctly, it protects us as well. By processing your purchase, you accept our General Terms and Conditions of Sale. If you are purchasing as a consumer (B2C), nothing stated herein limits the rights granted to you by mandatory law (RDL 1/2007, TRLGDCU): the 3-year legal warranty of conformity and the right of withdrawal under the terms and with the exceptions legally provided, which are detailed below. References to "B2B" apply only to businesses and professionals.

Your guarantees

  • Rights intact: 14 days of withdrawal from receipt for most products—subject to the legal exceptions you will see below, such as goods made to your specifications—and a 3-year legal warranty of conformity, under the terms of the TRLGDCU.
  • Conformity with the description: we guarantee that the equipment will correspond to the published technical description and what one could reasonably expect from it (arts. 115 et seq. TRLGDCU). Images and videos are for guidance only: the manufacturer may supply a more recent revision of the product or introduce minor aesthetic, packaging, or firmware changes, without this constituting a lack of conformity as long as the described characteristics and performance are maintained.
  • Traceability that also protects you: we document the condition, serial number, and seal of each piece of equipment upon shipment, and we video-record the opening of returns; this is your proof of the condition in which the goods were delivered.

Responsible use and your part

  • If you are thinking of returning it, keep it as you received it: without installing or activating it, with its seals, accessories, and packaging intact. This is how to ensure a full refund, without deductions.
  • Handling that exceeds inspection reduces value: handling the equipment beyond what is necessary to verify its nature and operation may result in a real, assessed, and case-by-case justified deduction (art. 108.2 TRLGDCU), never a fixed percentage. In particular: activating or registering the serial number, linking it to a manufacturer's account or app, circulating water through hydraulic equipment, unsealing probes, or installing software or consumables. Initial inspection of the product does not lead to a deduction.
  • The same item must be returned: withdrawal requires returning the supplied unit. Different equipment, or equipment with prior use, age, or wear prior to purchase, does not constitute a valid withdrawal.
  • Installation and cybersecurity, shared responsibility: this is technical hardware; you are responsible for correct installation, credentials, patches, and backups, while we deliver a compliant product. Q-TECH is not liable for damages resulting from poor installation, incorrect configuration, or omission of patches by the customer or third parties (in B2C, without prejudice to the legal warranty and liability for intent or negligence, arts. 86 and 130 TRLGDCU).
  • Delivery of bulky goods: delivery is made to the curb. B2C: transport risk is ours until physical delivery (art. 66 ter); we recommend noting visible damages on the delivery note and notifying us of breakages within 24-48 hours with photographs to activate the insurance. B2B: inspection and notation on the delivery note are mandatory; hidden damages must be reported within 24 hours (art. 366 CCom). Unjustified rejection or incorrect shipping information will entail the actual outbound and return costs (approx. €85-550 for heavy machinery).

Made to your measure (Advanced Pre-Assembly)

  • If your order includes equipment, racks, hydraulic assemblies, or technical rooms made or configured according to your specifications (permanent joints, custom cuts or wiring, parameterization, pressure testing), these are custom goods without the right of withdrawal from the conclusion of the contract (art. 103.c TRLGDCU; CJEU Case C-529/19), which is informed before purchasing and documented in the signed Order Note. A test you request without permanent modification retains your right of withdrawal, with only the actual loss of value caused by that test being deducted. Would you prefer to receive it tested, configured, and ready to connect, without assuming these risks? Contract our Advanced Pre-Assembly or the prior technical audit.

If you are purchasing as a business or professional (B2B)

  • The transaction is governed by the Commercial Code: firm sale, without the right of withdrawal; notification of defects within 4 days (apparent) / 30 days (hidden), arts. 336 and 342. Q-TECH acts as a distributor and excludes indirect damages, loss of profit, and data loss, limited to the price of the equipment, without prejudice to the manufacturer's commercial warranty.

Product warnings v1.0 · June 2026. Information summary; the complete and binding conditions are those published at q-tech.es.

High-temperature R290 heat pump with Easy Connect for cascade, zones and solar PV

The Domusa Dual Clima HT EC Pro is the version for the Easy Connect indoor module of Domusa's high-temperature heat pump, with R290 and from 6 to 22 kW. Q-Tech delivers the set assembled in a pre-assembled plant room, with the unit and the module already communicating and tested in our workshop.

Summary

Type Outdoor monobloc air-to-water heat pump with DC Inverter compressor
Brand and model Domusa Teknik Dual Clima HT EC Pro, 9 single-phase (HT) and three-phase (HTT) models
Use Heating, cooling and domestic hot water (DHW)
Heating output From 6.19 to 22.66 kW at A7W35, depending on model
Flow temperature Up to 75 °C
Efficiency Class A+++ at 35 °C and at 55 °C; SCOP from 5.06 to 5.21 at 35 °C
Control Easy Connect indoor module (sold separately), with iConnect built in
Warranty 5 years, with the compressor extendable to 7 years, according to the Domusa Teknik price list
Q-Tech installation Inside a pre-assembled plant room or on-site by an Expert Technician

HT Pro or HT EC Pro: where the control sits

Domusa sells the same outdoor unit in two versions. The difference is where the control sits: at the outdoor unit (Pro) or in an indoor module (EC Pro).

Version Dual Clima HT Pro HT EC Pro (this page)
Where accessories connect At the outdoor unit At the Easy Connect module, inside the home
Controller Indoor touch panel, with up to 30 m of cable Easy Connect indoor module
iConnect (control from your phone) Optional, with the TKITDCL062 module Built in as standard
Heating zones Zone 2 with the AIR hydraulic kit; up to 3 with iConnect and wireless sensors 2 zones with their own thermostat and pump at the Easy Connect
Cascade Not covered by the manual Up to 4 outdoor units, each with its own Easy Connect
Humidity sensor and energy meter (solar PV) Not covered by the manual Yes, optional at the Easy Connect
SG Ready Standard Standard
What you need to buy The outdoor unit only Outdoor unit and Easy Connect, sold separately
Outputs, efficiency and list price The same in both versions

What is the Domusa Dual Clima HT EC Pro?

The Domusa Teknik Dual Clima HT EC Pro is a high-temperature monobloc air-to-water heat pump, up to 75 °C, controlled from the Easy Connect indoor module. That module is sold separately and is required, according to the Domusa catalogue. The outdoor unit and the module are joined by a 2-wire (RS485) communication cable of up to 100 m, according to the manual.

What Easy Connect adds

With the Easy Connect module, all accessories connect inside the home. According to the Domusa manual, the module manages a cascade of up to 4 outdoor units in heating and cooling, 2 zones with their own thermostat and pump, up to 3 booster pumps, the humidity sensor for underfloor cooling and the energy meter, which uses photovoltaic surplus. It also has iConnect built in for control from your phone.

What problem does it solve?

A home with radiators, solar PV and two zones often ends up with several controllers that do not talk to each other. Each element adds wiring to the outdoor unit and complicates maintenance.

The HT EC Pro brings everything together in Easy Connect, reaches 75 °C with class A+++ at 55 °C and lets you add units in cascade when one is not enough. Q-Tech calculates the demand before recommending the output or the cascade.

Technical data

Heat pump type Air-to-water, monobloc, DC Inverter
Refrigerant R290 (propane), GWP 3; charge from 0.80 to 2.00 kg depending on model
Maximum flow temperature 75 °C
Heating operating range Outdoor temperature from −25 to 45 °C
Cooling operating range Outdoor temperature from 10 to 45 °C
Energy class A+++ at 35 °C and at 55 °C
Power supply 230 V single-phase (6 to 19 kW, HT) or 400 V three-phase (12 to 22 kW, HTT)
Recommended fuse From 16 to 40 A depending on model, with a 30 mA residual current device
Minimum water volume From 34 to 80 litres depending on model
Protection rating IPX4
Maximum water circuit pressure 3 bar
Equipment High-efficiency circulator, expansion vessel, control unit, flow meter and pressure gauge
Control Easy Connect indoor module, required
Connectivity iConnect built in as standard
Made in Spain

Models and data by variant

Model Power supply Heating A7W35 Cooling A35W18 SCOP 35 °C SCOP 55 °C Sound pressure at 1 m Dimensions (width × depth × height) Net weight Connection Domusa reference
6HT EC Pro 230 V 6.19 kW 6.23 kW 5.06 3.87 44 dB(A) 1,115 × 415 × 900 mm 80 kg 1" TDCL000365
9HT EC Pro 230 V 9.40 kW 9.12 kW 5.10 3.89 44 dB(A) 1,115 × 415 × 900 mm 82 kg 1" TDCL000366
12HT EC Pro 230 V 12.60 kW 11.80 kW 5.17 4.00 44 dB(A) 1,115 × 415 × 900 mm 125 kg 1" TDCL000367
16HT EC Pro 230 V 16.84 kW 15.09 kW 5.21 4.01 47 dB(A) 1,115 × 415 × 1,320 mm 140 kg 1¼" TDCL000368
19HT EC Pro 230 V 19.52 kW 18.62 kW 5.20 3.98 47 dB(A) 1,115 × 415 × 1,320 mm 146 kg 1¼" TDCL000369
12HTT EC Pro 400 V three-phase 12.60 kW 11.80 kW 5.17 4.00 44 dB(A) 1,115 × 415 × 900 mm 125 kg 1" TDCL000370
16HTT EC Pro 400 V three-phase 16.84 kW 15.09 kW 5.21 4.01 47 dB(A) 1,115 × 415 × 1,320 mm 140 kg 1¼" TDCL000371
19HTT EC Pro 400 V three-phase 19.52 kW 18.62 kW 5.20 3.98 47 dB(A) 1,115 × 415 × 1,320 mm 146 kg 1¼" TDCL000372
22HTT EC Pro 400 V three-phase 22.66 kW 21.02 kW 5.15 3.98 47 dB(A) 1,115 × 415 × 1,320 mm 153 kg 1¼" TDCL000373

SCOP according to the Domusa Teknik 2026 price list. Weights from the Domusa technical data manual (CDOC004220).

Compatibility and limits

  • Without the Easy Connect module (reference TDCL000376, in our shop) the HT EC Pro does not work; the price on this page is for the outdoor unit only.
  • In a cascade, each outdoor unit has its own Easy Connect, according to the manual.
  • Easy Connect options according to Domusa: energy meter CFTV000009, buffer tank sensor CDCL000196 and outdoor sensor AF TKITDCL044.
  • Below the model's minimum water volume, Domusa requires a buffer tank.
  • Domusa requires a water filter on the return, fitted before the circuit is filled.
  • For frost protection, antifreeze or the TKITDCL026 anti-freeze drain valve kit, with the unit always connected to power.
  • Domusa includes commissioning by its official technical service in its price, excluding travel.
  • Installation and certification require a licensed installation company.

When this product is not the right choice

  • If you need no cascade, humidity sensor or energy meter, the Dual Clima HT Pro connects directly, has SG Ready and needs no indoor module.
  • If you need neither high temperature nor DHW above 60 °C, the Domusa Dual Clima R EC works up to 60 °C and is also controlled with Easy Connect.
  • If you want the DHW tank inside the same unit, the Domusa NanoClima 4 HDX 135 has 135 litres of DHW and is installed indoors.

Frequently asked questions

Do I need to buy Easy Connect?

Yes. Domusa states that the HT EC Pro must be combined with the Easy Connect module, which is sold separately.

Which model do I need?

It depends on the demand and the supply: HT for single-phase and HTT for three-phase; for more output, several units in cascade. Send us the floor area, insulation and emitters on WhatsApp.

What is the difference from the Dual Clima HT Pro?

The outdoor unit has the same data. The HT Pro connects accessories at the outdoor unit; the HT EC Pro connects them at the Easy Connect, inside the home.

Does it use the energy from my solar panels?

Yes, with the Easy Connect energy meter. Domusa states that it optimises photovoltaic surplus by storing energy in the system.

What warranty does it have?

Five years, according to Domusa Teknik, with the compressor extendable to 7 years under the conditions of its price list.

What is the lead time?

It is in stock at our warehouse. Because of its weight, transport is quoted separately.

Q-Tech installation and support

In an Easy Connect system, most of the work is wiring and configuration. That is why it makes sense to receive it in a pre-assembled plant room: Q-Tech mounts the module with the rest of the plant room, configures zones, sensors and communication with the unit, and tests it in our workshop. The plant room arrives configured and ready to connect; the final connection is made by the site installer or by Q-Tech with the on-site Expert Technician by the day. More detail in Pre-Montaje Avanzado and in Expert Technician workshop pre-assembly.

When another company installs it or it is integrated into an existing system, Q-Tech first carries out a verification visit with the on-site hourly Expert Technician and then the pre-commissioning check, remote or on-site, so that the Domusa visit is the last one.

To size a cascade, book a technical call or message us on WhatsApp. More units in heat pump systems and in our heat pump services.

Documentation

Availability and lead times: this item is in stock at our warehouse. Occasionally, depending on the time of year, the stock update may contain an error. If no units are available when you place your order, we will order it urgently and inform you immediately of the updated delivery time. Because of its weight, transport is quoted separately.

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