List Of Warnings; Technical Data - Grundfos PM Rain Installation And Operating Instructions Manual

10.

List of warnings

Indication
"Warning" is permanently on. Dry running.
"Warning" flashes once per
period.
"Warning" flashes three
times per period.
"Warning" flashes more than
three times per period.

11. Technical data

Data
Supply voltage
Maximum inductive contact load
Frequency
Maximum ambient temperature
Liquid temperature
1)
p
start
2)
p
stop
Q
min.
Time delay during stopping
Maximum operating pressure
Enclosure class
Volume of internal pressure tank
Dimensions
1)
The start pressure (p
start
The setting is described in section 5.1 DIP switches.
2)
The stop pressure (p
stop
See section 7.3 Start/stop with 1 bar (100 kPa) differential pressure.
The technical data may be limited by the pump data. See installation and operating instructions for the pump.
12
Warning
Cycling.
Protection mode.
Internal fault.
) can be set in steps of 0.5 bar (50 kPa).
) is only used in systems with a pressure tank.
Cause
The pump has been running without water.
The pump is cycling.
Note: Occurs only if the anti-cycling function has
been enabled. See section 8.1 Anti-cycling.
The pump has had too many start/stop sequences
within a short period.
Each pump start is delayed a few seconds to
protect the installation. The start delay is active
until normal operation has been re-established.
Note: The protection mode will protect the
installation when the PM Rain is set to start/stop
with 1 bar (100 kPa) differential pressure, i.e. when
DIP switch 5 is set to "ON". The protection mode
functions independently of the anti-cycling
function.
Internal fault in the unit.
230 V model
1 x 220-240 VAC
10 A
50/60 Hz
0 to 55 °C
0 to 60 °C
2.5 to 6 bar (250 to 600 kPa)
p + 1 bar (100 kPa)
start
1.0 litre/min.
10 seconds
PN 10 / 10 bar / 1000 kPa / 1 MPa
IP65
0.1 litre
See fig. 9, page 15