21
Program 160 – Insertion of two boilers into a heating system
Program 160:
The charging pump
A1
runs, if:
•
S1
exceeds the threshold
min1
• and
S1
is greater than
S2
by the difference
diff1
• and
S2
has not exceeded
max1
.
The charging pump
A2
runs, if:
•
S5
exceeds the threshold
min2
• and
S5
is greater than
S3
by the difference
diff2
• and
S3
has not exceeded the threshold
max2
.
Output
A3
is activated, if
S4
falls below the threshold
min3
.
Output
A3
is deactivated (dominantly), if
S3
exceeds the threshold
max3
.
A1 = S1 > (S2 + diff1) & S1 > min1 & S2 < max1
A2 = S5 > (S3 + diff2) & S5 > min2 & S3 < max2
A3 (on) = S4 < min3 A3 (off) = S3 > max3
All pr1:
The burner request (
A3
) is regulated using only
S4.
A3 (on) = S4 < min3 A3 (off) = S4 >max3
(dominant)
All pr2: A3
activation is only permitted, if
A1
is deactivated.
All pr4
(only practical in conjunction with „all pr1“): Pump
A2
runs, if:
•
S5
exceeds the threshold
min2
• and
S5
is greater than
S4
by the difference
diff2
• and
S4
has not exceeded the threshold
max2
.
A2 = S5 > (S4 + diff2) & S5 > min2 & S4 < max2
All pr8
(additional sensor S6): If
S6
exceeds the threshold
max1
(no longer on
S2
),
A3
(burner request) is deactivated. The sensor
S6
is to be fitted to the flue tube or can be
replaced with flue-gas thermostat.
necessary settings
max1
max2
max3
min1
min2
min3
diff1
diff2
... limit CYL
S2
... limit CYL
S3
... burner req. off CYL
S3
... activation temp. boiler
S1
... activation temp. boiler
S5
... burner req. on CYL
S4
... boiler
S1
- CYL
S2
... boiler
S5
- CYL
S3
à
A1
à
A2
à
A3
à
A1
à
A2
à
A3
à
A1
à
A2
Содержание UVR65
Страница 2: ......
Страница 105: ...105 Schematic representation of thresholds...