High ef
fi
ciency heat recovery unit with cooling circuit -
RHE
-
11
Selection, installation, use and maintenance manual
GB
Cooling Performance variations
The RHE series heat recovery unit with
refrigerating circuit allow the renewal of
the internal air giving the necessary hourly
change in order to obtain the ideal comfort
conditions.
The use of a high efficiency cross-flow heat
recovery unit and a heat pump refrigerating
circuit allows, in most applications and in
the most common external air temperature
conditions, in addition to the neutralisation of
the heating load of the external air, to supply
an adequate heating and cooling capacity to
compensate the internal heating loads.
The fig. 4 illustrates the graph from which
it is possible to draw the coefficients to be
multiplied by the nominal values which
are present in the technical data table to
determine the total refrigerating and heating
performance based on the outside conditions.
External air temperature [°C]
Key
Room air temperature
Summer operation: 26 °C 50% UR
fig.04
Heating performance
Muilti plicative Coefficient
Cooling performance
Room air temperature
Winter operation: 20 °C 50% UR
Coefficienti moltiplicativi per la resa frigorifera e termica al variare della temperatura aria ambiente in regime estivo ed invernale:
SUMMER OPERATION:
Room conditions 22°C, 50% RH --> corrective coefficient = 1,050
Room conditions 24°C, 50% RH --> corrective coefficient = 1,025
Room conditions 26°C, 50% RH --> corrective coefficient = 1
Room conditions 28°C, 50% RH --> corrective coefficient = 0,975
WINTER OPERATION:
Room conditions 18°C, 50% RH --> corrective coefficient = 0,980
Room conditions 20°C, 50% RH -->corrective coefficient = 1
Room conditions 22°C, 50% RH --> corrective coefficient = 1,020
Room conditions 24°C, 50% RH --> corrective coefficient = 1,040
M
OLTIPLICATIVE
COEFFICIENTS
FOR
THE
COOLING
AND
HEATING
PERFORMANCE
TO
ROOM
AIR
TEMPERATURE
VARIATION
IN
SUMMER
/
WINTER
OPERATION
