UAB KOMFOVENT we reserve the right to make changes without prior notice
RHP-C5.1_21-01
7
Heat pump
Air handling units are with integrated heat pumps for cooling and heating operations.
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Inside the unit is refrigerant R134A.
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Max operation pressure 18 bar.
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High pressure cut out – 18 bar, cut in – 13 bar (automatic reset). Low pressure cut out 0.7 bar, cut
in - 1.7 bar (automatic reset).
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If one or both air flows are bellow switch off limit (as stated in the data sheet) heat pump will be
switched off and indication icon will be displayed on control panel screen (see page 22).
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Maximum outside temperature for heating is 15 °C and minimum outside air temperature for cooling
is 20 °C. If outside air temperature exceed this limits heat pump will be switched off and indication
icon will be displayed on control panel screen (see page 22).
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Before commissioning, make sure that the air handling unit is filled with refrigerant. This can be
done by looking through the moisture indicator.
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The unit is equipped with moisture indicator. At high moisture content of the system, it must be
cleaned, changed the filter and re-filled with refrigerant..
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The unit washing, cleaning, maintenance is carried out as well as any other type of device described
in this manual.
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Device information sticker of the used refrigerants is applied near to the high-and low-pressure
filling valve. Sticker is seen when doors are opened.
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Extract air heat exchanger defrost, in heating mode, are carried out with hot gas by pass.
wiring
diagram
