18
EA135 - EA136
14/08/2009 - 300021171-001-B
3.2 Electronic heating pumps
- Control integrated into the pump head
- Operation in AUTOADAPT mode (Factory setting)
- Control by measuring the differential pressure (Control by
proportional differential pressure or constant pressure)
- LED display showing the instant absorbed power (P1) in Watts.
- Low noise level
- Powerful start-up torque
- Automatic reduced night regime
- Motor operating on the technological basis of a compact rotary
motor with permanent magnet
- Integrated frequency converter
- Heating pump with integrated vent
Energy class
GRUNDFOS ALPHA2 heating pumps guarantee the lowest
electricity consumption and bear label A.
AUTOADAPT
The AUTOADAPT control mode is the heating pump's factory setting.
Set to AUTOADAPT mode, the pump adapts automatically,
depending on the request from the heating system. The
"AUTOADAPT" setting can be used for dual pipe installations and for
ground heating systems.
Control by measuring the differential pressure
Control by integrated differential pressure measurement allows the
heating pump to adapt automatically to changes to heating needs.
Automatic reduced night regime
The heating pump automatically switches from the daytime regime to
the reduced night regime by controlling the water temperature of the
flow.
Fixed speeds
The heating pump has three fixed speeds (I, II and III). When this
mode is selected, the heating pump operates according to a constant
speed graph.
1
: Instant absorbed power (W)
2
: Energy label A
3
: Three fixed speeds
4
: Touch button to select fixed speeds
5
: Touch button to select night mode
6
: Light showing night mode
7
: Light showing fixed speeds
8
: AUTOADAPT control mode (Factory setting)
I
II
III
ALPHA2
AUTO
AUTO
ADPT
1
2
3
4
5
6
7
8
D000981
