Grundfos ALPHA SOLAR N 180 Bruksanvisning
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GRUNDFOS DATA BOOKLET
ALPHA SOLAR
Circulator pumps
50/60 Hz
Table of contents
2
ALPHA SOLAR
1. ALPHA SOLAR 3
Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pumped liquids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Alarm status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Control box connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Power supply connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Control signal connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Digital signal converter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2. Curve conditions 6
3. Performance curves and technical data 7
ALPHA SOLAR 15-75, 25-75 130/180. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
ALPHA SOLAR 25-145 180. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4. Product numbers 9
Replacement table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5. Grundfos Product Center 10
ALPHA SOLAR
3
ALPHA SOLAR
1
1. ALPHA SOLAR
Product description
The ALPHA SOLAR is designed to be integrated in all
kinds of thermal solar systems with either variable or
constant flow rate. High-efficiency ECM (Electronically
Commutated Motor) pumps, such as ALPHA SOLAR,
must not be speed-controlled by an external speed
controller varying or pulsing the supply voltage.
The speed can be controlled by a low-voltage PWM
(Pulse Width Modulation) signal from a solar controller
to optimise the solar harvesting and temperature of the
system. As a result, the power consumption of the
pump will be reduced considerably.
If no PWM signal is available, you can set ALPHA
SOLAR to operate at constant speed / constant curve,
only switched on and off by the controller.
Fig. 1 PWM input profile C (solar)
Features
• Four different constant speed settings
• PWM C profile. The PWM signal is a method for
generating an analog signal using a digital source.
Benefits
• Low EEI (Energy Efficiency Index), EEI ≤ 0.20
• Maintenance-free
• Low noise level
• Very simple installation
• Compact
• Deblocking screw
• High ambient temperature (70 °C).
Technical data
Pumped liquids
ALPHA SOLAR is suitable for the following:
• Clean, thin, non-aggressive and non-explosive
liquids, not containing solid particles or fibres.
• In heating systems, the water should meet the
requirements of accepted standards on water
quality in heating systems, for example the German
standard VDI 2035.
• The pH should be between 8.2 and 9.5. The
minimum value depends on the water hardness and
should not be below 7.4 at 4 °dH (0.712 mmol/l).
• The electrical conductivity at 25 °C should be ≥ 10
microS/cm.
• Mixtures of water with antifreeze media such as
glycol with a kinematic viscosity lower than 10 mm2/
s (10 cSt). When selecting a pump, the viscosity of
the pumped liquid must be taken into consideration.
If the circulator pump is used for a liquid with a
higher viscosity, the hydraulic performance of the
pump is reduced.
• Solar media as used in typical solar thermal
systems containing up to 50 Vol % of antifreeze
media.
TM06 5816 0216TM05 1575 3211
Max.
PWM input signal [%]
Speed
System pressure Maximum 1.0 MPa (10 bar)
Minimum inlet pressure
0.05 MPa (0.50 bar) at 95 °C liquid
temperature
Maximum inlet pressure 1 MPa (10 bar)
Maximum liquid
temperature
2-110 °C at 70 °C ambient temperature
2-130 °C at 60 °C ambient temperature
Enclosure class IPX4D(with drain holes)
Insulation class F (EN 60335-1)
TF class TF110 at 70 °C ambient temperature
Motor protection No external protection needed
Approval and marking CE
Water/propylene glycol
mixture
Maximum water/propylene glycol
mixture is 50 %.
Note: The water/propylene glycol
mixture reduces the performance due to
higher viscosity.
Produktspecifikationer
| Varumärke: | Grundfos |
| Kategori: | pump |
| Modell: | ALPHA SOLAR N 180 |
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