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systemair 13
Hot water production in parallel with heating
Hot gas ows continuously through the plate heat
exchanger for hot water production. The demand for hot
water production only takes place via the charge pump.
If heating is operating at the same time, the secondary
air fan follows the heating demand.
Now, the Domestic Hot water is heated preferentially.
However the residual heat is used for the heating
operation.
Hot water production in parallel with cooling functions
according to the same principle.
Hot water production without heating or cooling
demand
The ventilation functions as described in "Ventilation
mode". If there is a demand for hot water, the
compressor and the storage charging pump start. The
residual energy of the extract air is used as in the
heating mode. A plate heat exchanger is used. The hot
gas of the refrigeration circuit ows through the primary
side and hot water ows through the secondary side.
Outdoor air
Supply air
Secondary air
Extract air
Exhaust air
KEY
SF Supply air fan
EF Extract air fan
RF Secondary air fan
FS Outdoor air sensor
ETS Extract air sensor
SS Supply air sensor
EHS Exhaust air sensor
PTC PTC element
RS Room controller
Living area
FS (ETS)
(EHS)
SF
EF RF
Heat pump
Outside
Heat recovery unit
Secondary air
SS
Bath-
room
WC Kitchen Living room
Sleeping area
R3
PTC RS
R6
PTC RS
R2
PTC RS
R5
PTC RS
R1
PTC RS
R1
PTC RS
Storage charging pump
B3
Evaporator
Living area
FS (ETS)
(EHS)
SF
EF RF
Heat pump
Outside
Heat recovery unit
Secondary air
SS
Bath-
room
WC Kitchen Living room
Sleeping area
R3
PTC RS
R6
PTC RS
R2
PTC RS
R5
PTC RS
R1
PTC RS
R1
PTC RS
Storage charging pump
B3
Evaporator
Condenser