Description
ITS-3.6HD 3.6 kW Domestic Heat Pump
The ITS-3.6HD 3.6 kW Domestic Heat Pump is a residential air-to-water heat pump designed to heat domestic hot water efficiently while reducing reliance on a conventional electric geyser element. It is intended for residential hot-water applications and is suitable for geysers of up to approximately 200 litres, subject to household demand, installation conditions and correct system design.
Instead of generating all of its heat directly through an electrical resistance element, the heat pump uses a refrigeration cycle to absorb thermal energy from the surrounding air and transfer that energy into the water system. This allows the unit to provide substantially more heating energy than the electrical energy it consumes under suitable operating conditions.
High-Efficiency 3.6 kW Water Heating
The published ITS specification for the ITS-3.6HD lists a rated heating capacity of 3.6 kW with rated input power of only 0.86 kW. Under the specified test conditions, the unit has a published COP of 4.18. COP, or coefficient of performance, describes the relationship between useful heat output and electrical input. A COP above 4 under test conditions means the heat pump can deliver more than four units of thermal energy for approximately one unit of electrical input at those conditions.
Actual operating efficiency will vary according to ambient temperature, incoming water temperature, desired outlet temperature, installation design, water usage and other site conditions.
Built-In Circulation Pump
The ITS-3.6HD incorporates an internal bronze circulation pump. This integrated design simplifies the hydraulic arrangement compared with systems that require a separate external circulation pump and helps provide controlled water circulation through the heat-pump circuit.
Built-In Wi-Fi
Current retail information for the ITS-3.6HD identifies the unit as having built-in Wi-Fi, allowing convenient control through the supported Smart Life application. Wi-Fi functionality can make it easier to manage water-heating schedules and operating settings without needing to access the outdoor unit directly.
Hot-Water Performance
The technical specification lists hot-water production of approximately 80 litres per hour when heating water from 15°C to 55°C under the applicable test conditions. Maximum water outlet temperature is listed as 60°C. This makes the ITS-3.6HD suitable for normal domestic hot-water requirements when correctly matched to the geyser capacity and household consumption.
Designed for South African Residential Applications
The unit operates from a 220 V, single-phase, 50 Hz electrical supply. Its stated ambient operating temperature range is -7°C to 43°C, supporting operation across a wide range of South African climatic conditions. The metal casing provides a robust enclosure for the outdoor unit.
Quiet Operation
The published noise level is 49 dB(A). Correct positioning remains important: the unit should be installed where sufficient airflow is available and where operating noise will not unnecessarily disturb bedrooms, neighbouring properties or enclosed living areas.
Technical Specifications
| Model | ITS-3.6HD |
|---|---|
| Rated heating capacity | 3.6 kW (3,600 W) |
| Power supply | 220 V / 1 Phase / 50 Hz |
| Rated input power | 0.86 kW |
| Running current | 3.99 A |
| COP | 4.18 |
| Maximum power input | 1.45 kW |
| Maximum current | 6.5 A |
| Casing | Metal |
| Colour | White |
| Refrigerant | R410A |
| Circulation pump | Internal bronze pump |
| Controller | Time-window controller with external temperature sensor and LCD display |
| Wi-Fi | Built-in Wi-Fi on current retail version |
| Ambient operating temperature | -7°C to 43°C |
| Hot water generated | 80 L/h at 15/55°C test condition |
| Maximum outlet temperature | 60°C |
| Water connections | 3/4 inch / DN20 |
| Minimum flow rate | 11 L/min at 5°C delta |
| Noise level | 49 dB(A) |
| Maximum water pressure | 10 bar (current manufacturer listing) |
| Waterproof level | IPX4 (current manufacturer listing) |
| Certification | TÜV (CB) according to current manufacturer listing |
| Net dimensions | 936 × 385 × 550 mm (published technical sheet) |
| Net weight | 50 kg |
| Recommended geyser size | Up to approximately 200 L |
| Warranty | Limited extended 5-year warranty according to current ITS product information |
Suitable Applications
The ITS-3.6HD is intended primarily for residential domestic hot-water systems. It can be considered for homes seeking to reduce the electricity consumed by conventional geyser-element heating, and it may also be used as part of a correctly designed hybrid hot-water arrangement.
Installation Considerations
Correct installation is essential for heat-pump performance, reliability and warranty compliance. The unit requires suitable hydraulic integration with the geyser, sufficient airflow around the outdoor unit, compliant electrical supply, suitable pipe sizing and appropriate positioning. Site conditions such as geyser location, pipe route, water pressure, access and existing plumbing configuration can affect the final installation scope and price.
Professional installation is recommended. Contact Plumber-Plumbers.co.za for an installation quotation and confirmation that the unit is correctly matched to your existing geyser and household hot-water requirements.
Important Specification Note
The core numerical specifications above are based on the ITS-3.6HD technical specification sheet supplied with this product record. ITS’s current online product listing contains several slightly revised test figures for the current retail unit. Because manufacturers may revise specifications over time, critical installation and warranty requirements should be confirmed against the documentation supplied with the physical unit before installation.
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