Technical Data - Grundfos ALPHA Instructions D'installation Et D'utilisation

Masquer les pouces Voir aussi pour ALPHA:
Table des Matières

Publicité

Les langues disponibles

Les langues disponibles

12. Technical data

Supply voltage:
1x115V +/-10 %, 60Hz.
Motor protection:
The pump requires no external motor protection.
Enclosure class:
Indoor use only, IP42.
CSA Enclosure Type 2.
Insulation class:
F.
Relative air humidity:
Maximum 95 %.
Maximum discharge pressure:
150 psi (10.34 bar).
Inlet pressure:
Liquid temperature
167 °F (75 °C)
194 °F (90 °C)
230 °F (110 °C)
Sound pressure level:
43 dB (A).
Ambient temperature:
+32 °F (0 °C) to +104 °F (+40 °C).
Liquid temperature:
+36 °F (+2 °C) to +230 °F (+110 °C).
To avoid condensation in the control box and stator,
the liquid temperature must always be higher than
the ambient temperature.
Ambient
temperature
[°F (°C) ]
Min. [°F (°C) ]
+32 °F
+36 °F
(0 °C)
(+2 °C)
+50 °F
+50 °F
(+10 °C)
(+10 °C)
+68 °F
+68 °F
(+20 °C)
(+20 °C)
+86 °F
+86 °F
(+30 °C)
(+30 °C)
+95 °F
+95 °F
(+35 °C)
(+35 °C)
+104 °F
+104 °F
(+40 °C)
(+40 °C)
Min. inlet pressure
0.75 psi (0.05 bar)
4.06 psi (0.28 bar)
15.7 psi (1.08 bar)
Liquid temperature
Max. [°F (°C) ]
+230 °F
(+110 °C)
+230 °F
(+110 °C)
+230 °F
(+110 °C)
+230 °F
(+110 °C)
+194 °F
(+90 °C)
+158 °F
(+70 °C)
In domestic hot-water system, it is
recommended to keep the liquid
temperature below +149 °F (+65 °C) to
eliminate the risk of lime precipitation.
Caution
Maximum glycol concentrations:
50 % glycol @ 36 °F (2 °C).
Hydraulic performance change can be expected.
Watt readings:
Accuracy +/-1 Watt.
Flow indicator:
Provides a relative indication of flow — should not
be used in lieu of a flow meter.
Check valve:
Use of check valve may reduce pump hydraulic
performance (up to -10%).
Use check valve in parallel pumping applications.
Curve conditions:
Test liquid: Airless water.
Curves apply to a density of 983.2 kg/m
liquid temperature of +140 °F (+60 °C).
All curves show average values and should not be
used as guarantee curves. If a specific minimum
performance is required, individual measurements
must be made.
Curves apply to a kinematic viscosity of 0.474 cSt.
Approximate power usage:
Speed setting
High fixed speed
Medium fixed speed
Low fixed speed
Constant pressure
Constant pressure
Constant pressure
AutoADAPT
3
and a
Min.
Max.
III
39W
45W
II
15W
30W
I
5W
8W
8W
45W
14W
45W
22W
45W
5W
45W
9

Publicité

Table des Matières
loading

Table des Matières