DHP-AX – 15
VUBMI102
Figure 8: Starting and stopping heat pump operation based on integral values.
The integral value calculation stops during hot water production and during heat
stop. Integral value calculation resumes two minutes after completed hot water pro-
duction to give the heating system time to stabilise the temperature.
Hea
t
surplus
Int
egr
al
INTEGR
AL
A1
Hea
t
surplus
Hea
ting
deficit
Compr
essor
star
t
(A1)
INTEGR
AL
A2
INTEGR
AL
A1
INTEGR
AL
A2
A
ux.
heat
er
star
t
(A1+A2)
Compr
essor
st
op
(≥0)
A
ux.
Heat
er
st
op
(lat
est
by
A1)
A
ux.
hea
ter
C
ompr
essor
No
oper
ation
No
oper
ation
Compr
essor
star
t
(A1)
A
ux.
heat
er
star
t
(A1+A2)
A
ux.
hea
ter
C
ompr
essor
Time
Heat
pump
oper
ation
(Heat
demand)
