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A compact, easy to install, all-in-one solution for applications where a outdoor unit is not possible or not preferred. Ideal for office, high rise buildings, conservatory dwarf walls, hotel, home and light commercial air conditioning applications. Heats and cools.


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Home > Air To Water Heat-pump

Trianco Activair Air Source Heat-pump S500 (5 KW / 18000 Btu) for DHW

Our Price: £1,126.47
Trianco Activair Air Source Heat-pump S500 (5 KW / 18000 Btu) for DHW
Trianco Activair Air Source Heat-pump S500 (5 KW / 18000 Btu) for DHW
Trianco Activair Air Source Heat-pump S500 (5 KW / 18000 Btu) for DHW
Trianco Activair Air Source Heat-pump S500 (5 KW / 18000 Btu) for DHW
Trianco Activair Air Source Heat-pump S500 (5 KW / 18000 Btu) for DHW

Trianco Activair Air Source Heat-pump (5 KW / 18000 Btu) for DHW  S500

Trianco Heating Products has confirmed that the company has gone into administration (27/07/10). We will no longer be suppling this item.

The ingenious Activair ASHP

Air Source Heat Pumps are becoming an increasingly popular choice for home heating, especially in areas with less severe winters. But what makes it such a viable heating alternative, and how does it work? Quite simply, the Activair ASHP has a motor powered by electricity that supplies more energy than it consumes when it extracts heat from the surrounding air. For every unit of energy purchased as electricity, several units of heat are delivered, making it up to four times more effective.

Saving energy and preventing pollution

It works in a very similar way to a domestic refrigerator, utilising a working fluid driven around a refrigerant circuit containing four components - an evaporator, a compressor, a condenser and an expansion valve. The refrigerant liquid circulating within the system has a boiling point as low as -40°C and evaporates when absorbing heat from ambient air. This means it’s possible to extract considerable heat from extremely low temperatures. The resulting refrigerant gas is then compressed, adding more heat energy and raising its temperature to around 60°C. This heat is then passed via the heat exchanger into your home for use in your hot water cylinder.

Unique efficiency

This unique product consists solely of one neat, compact unit, complete with refrigerant. The 3 and 5kW are suitable for DHW and can be sited internally or externally. This product can be easily installed in a loft space or externally (with optional adjustable fixing bracket) and quickly plumbed into an indirect cylinder. For those wanting DHW and heating, a 12kW model is available which is also suitable for underfloor or radiator heating, and can only be sited externally. The Activair ASHP is the modern way to harvest yet another natural resource - it satisfies the need to move heat from ambient air, where it’s not needed, into the house where it can become an integral part of our domestic comfort in a completely safe and reliable way.

Coefficient of Performance

The average COP for all the machines at 21 DegC was a minimum of 3. The COP of heat pumps seem to compare very favourably with high efficiency gas appliance (90-99% efficient), and electric heating (100%), but the full cost of the energy consumed must be considered. Energy from gas is typically much less expensive than that from electricity. However, a heat pump of COP 3.4, such as in the example above, could be less expensive to use than even the most efficient gas appliance.

www.orionairsales.co.uk: Trianco Activair Air Source Heat-pump S500 (5 KW / 18000 Btu) for DHW
Key Product Feature's

• High efficiency
• Compact & unobtrusive
• Nominal 3kW & 5kWoutput for DHW
• Nominal 12kW output for DHW and underfloor /heating or radiators
• Low energy costs
• Provides high CO2 emissions savings
• Easy to install
• Flexible siting
• Latest compressor technology
• Incorporates circulating pump
• Competitively priced
• Optional stainless steel mounting plates
• Anti frost protection
• 3-year comprehensive warranty
• Intergrated pump within unit

S300 Model
S500 Model

Heating Capacity @ 20°C Ambient

Rated Input
Rated Input Current
3.9 amp
6.4 amp
Max. Input Power
1.4 kW
1.9 kW
Max. Input Current
6.4 amp
8.6 amp
Flow Rate
8.5 litres/min
15 litres/min
Weight (empty)
Noise Level
52 dB(A)
54 dB(A)
Min. Water Output Temperature
Max. Water Output Temperature
Power Supply
230V -50Hz
Fused at 13 amp
Min. Working Pressure
Max. Working Pressure
Working Ambient TemperatureRange
-5°C to 43°C
Flow & Return Connections
½” BSP
Required Air Flow
350 cfm
500 cfm
R417a (510g)
R417a (820g)
Electrical Shock Protection
Water Protection
Casing Finish
Optional Extras
Refer to spares list

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