Siemens RVL481 - Page 50

Building Technologies 74 319 0618 0 a 17.04.2008 50/276
en
Block “Setpoint of return temperature limitation”
101 Limitation of return
temperature, con-
stant value
--- °C
(--- / 0…140)
...................°C
Setting --- = function deacti-
vated
Plant types 1–x, 4–x, 5–x:
Minimum limitation
Plant types 3–x, 6–x:
Maximum limitation
Block “District heat”
112 Maximum limitation
of return tempera-
ture, slope
0.7
(0.0…4.0)
.........................
113 Maximum limitation
of return tempera-
ture, start of shifting
limitation
10 °C
(−50…+50)
...................°C
TRt
-TO
2541D01
OpL 101
OpL 112
OpL 113
OpL = Operating line
TO = Outside temperature
TRt = Returntemperature
114 Maximum limitation
of return tempera-
ture, integral action
time
30 °C
(0…60)
................
min
For maximum limitation of return
temperature and for DRT limita-
tion
115 Maximum limitation
of return tempera-
ture differential
--.- °C
(--.- / 0.5…50)
...................°C
Differential between primary and
secondary return temperature
(DRT)
Setting --.- = function deacti-
vated
116 Minimum stroke
limitation (Y
min
func-
tion)
6 min
(-- / 1…20)
................
min
Stroke limitation in the actuator
Setting -- = function deactivated
Block “Maximum limitation of return temperature, d.h.w.”
117 Maximum limitation
of return tempera-
ture d.h.w.
--- °C
(--- / 0…140)
...................°C
Maximum limitation with d.h.w.
heating