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It is advised that any settings that are changed are noted within Section 8 'Heat Pump Settings Sheet' page
34.
5.4.2 Weather Compensation (Optional)
All Kensa Heat Pumps are supplied with
return water set-point against a schedule of external ambient temperatures. In more simple terms, the
temperature of water flowing into the building's radiators or underfloor heating is reduced in mild weath-
er, which allows the heat pump to run more efficiently. This is particularly important with
much higher temperatures are required. In cold weather, many people already turn up the temperature of
water flowing from their boiler by hand and are therefore weather compensating their heating system
manually.
Kensa Heat Pumps are supplied with the required sensors for installation, however the function is disabled
in the software. To enable weather compensation (if required) on your heat pump the following settings
can be changed within the controller or you can contact our Technical department, who can run through
the reprogramming procedure.
The weather compensation sensor is supplied in a small waterproof enclosure.
Fig 19 Weather
compensation sensor
Waterproof container
sensor
Kensa strongly suggest that the heatpump should be run for at least one week after commissioning,
before the weather compensation is activated.
This sensor needs to be fixed to a North-facing wall, and connected with 2 core 0.5 mm cable, unshielded,
to the heat pump. The cable should be routed inside the heat pump case and left coiled up inside, with
the small green terminal block attached. The weather compensation should then be left disabled. If
weather compensation is required please follow the procedure over or contact Kensa Technical
Department.
Plant Room Heat Pump Manual Version 11.1
Page 27 of 34
Weather Compensation
Main terminal block
as standard. This facility will reduce the
Weather compensation
sensor
Small green terminal
block
radiators, as
Green Terminal
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