26
en
Tube collector function
OTC
Tube collector option
Adjustment range: OFF / ON
Factory setting: OFF
TCST
Tube collector function starting time
Adjustment range: 00:00 … 23:45
Factory setting: 07:00
This function is used for improving the switch-on behaviour in systems with
non-ideal sensor positions (e. g. with some tube collectors). This function operates
within an adjusted time frame. It activates the collector circuit pump for an adjust-
able runtime between adjustable standstill intervals in order to compensate for the
delayed temperature measurement.
If the runtime is set to more than 10 s, the pump will run at 100 % for the first 10 s
of the runtime. For the remaining runtime, the pump will be run at the adjusted
minimum speed. If the collector sensor is defective or the collector is blocked, this
function is suppressed or switched off.
TCEN
Tube collector function ending time
Adjustment range: 00:00 … 23:45
Factory setting: 19:00
TCRU
Tube collector function runtime
Adjustment range: 5 … 500 s
Factory setting: 30 s
TCIN
Tube collector function standstill interval
Adjustment range: 1 … 60 min
Factory setting: 30 min
Note:
If the drainback option
ODB
is activated,
TCRU
will not be available. In
this case, the runtime will be determined by the parameters
tFLL
and
tSTB
.
Grundfos Direct Sensor
™
registration
GFD
Grundfos Direct Sensor™ registration
Selection: OFF, 12, 40, 40F
Factory setting: OFF
Registration of a digital flow rate sensor which can be used for heat quantity meas-
urement.
OFF : no Grundfos Direct Sensor™
12 : VFD 1-12 (water / propylene glycol mixture)
40 : VFD 2-40
40F : VFD 2-40 Fast (water only)
