Grundfos PM 1 User Manual

English (GB)
9
4.2.2 Enabling the DIP switch settings
To enable the DIP switch settings, press [Reset] or
disconnect and reconnect the power supply to the
pressure manager.
4.2.3 Checking the DIP switch settings
Keep [Reset] pressed for at least 3 seconds, and the
light fields for the DIP switches set to "ON" will
illuminate in the pressure scale.
The light fields illuminate the eight diodes in the right
side, depending on the DIP switch. This means that
if the light field to the far right is on, DIP switch 8 has
been set to "ON", etc. See the table below.
DIP switch
Description Default setting
No. Name
1-4 START
Start pressure
With these DIP switches you can set the start pressure from
1.5 to 5.0 bar in steps of 0.5 bar.
Example:
DIP switch 1 = "ON"
DIP switch 2 = "ON"
Start pressure = 1.5 + 0.5 + 1 = 3 bar
See section 9.2.1 Starting and stopping conditions.
All set to OFF;
start pressure = 1.5
bar
5
STOP = START +
1 BAR
Start and stop with one bar differential pressure
This operating mode is only suitable for systems with a
pressure tank.
When the DIP switch has been set to "ON", the pump stop
pressure will be equal to the start pressure + 1 bar.
See section 9.2 Start and stop with one bar differential
pressure.
In systems without a pressure tank, the DIP switch must be
set to "OFF".
OFF;
start and stop
according to water
consumption
6 AUTO RESET
Automatic resetting of alarms
When the DIP switch has been set to "ON", the cycling and
dry-running alarms will automatically be reset if they have
been activated. See section 11.1 Auto reset.
OFF;
manual resetting
7 ANTI CYCLING
Anti cycling
When the DIP switch has been set to "ON", the pump will be
stopped in case of cycling. See section 11.2 Anti cycling.
OFF
8 MAX RUN 30 MIN.
Maximum continuous operating time, 30 minutes
When the DIP switch has been set to "ON", the pump will
automatically be stopped if it has been running continuously
for 30 minutes. See section 11.3 Maximum continuous
operating time, 30 minutes.
OFF
When the desired DIP switch settings have
been made, they must be enabled,
otherwise PM 2 cannot detect the settings.
Light field [bar] 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
DIP switch no. 12345678

Grundfos PM 1 Specifications

General

Brand	Grundfos
Model	PM 1
Category	Controller
Language	English