Technical Data; Operating Conditions; Disposing Of The Product - Grundfos ALPHA1 Instrucciones De Instalación Y Operación

10. Technical data

10.1 Operating conditions

Supply voltage
1 x 115 V, + 10 %/- 10 %, 60 Hz.
Motor protection
The pump requires no external motor protection.
Enclosure class
Indoor use only, IP42.
CSA enclosure type 2.
Insulation class
F.
Relative humidity
Maximum 95 %.
Maximum outlet 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.
Liquid temperature
Ambient
temperature
Minimum
[°F (°C) ]
[°F (°C) ]
32 (0) 36 (2)
50 (10) 50 (10)
68 (20) 68 (20)
86 (30) 86 (30)
95 (35) 95 (35)
104 (40) 104 (40)
In domestic hot water systems, keep
the liquid temperature below 149 °F
(65 °C) to eliminate the risk of lime
precipitation.
16
Minimum
inlet pressure
0.75 psi (0.05 bar)
4.06 psi (0.28 bar)
15.7 psi (1.08 bar)
Maximum
[°F (°C) ]
230 (110)
230 (110)
230 (110)
230 (110)
194 (90)
158 (70)
Glycol
Maximum glycol concentrations with clean
water:
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 - must not
be used in lieu of a flow meter.
Check valve
Use of a check valve may reduce pump
hydraulic performance (up to - 10 %).
Use a 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 must 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
Constant
III
pressure
Constant
II
pressure
Constant
I
pressure

11. Disposing of the product

This product or parts of it must be disposed of in
an environmentally sound way:
1. Use the public or private waste collection
service.
2. If this is not possible, contact the nearest
Grundfos company or service workshop.
3
and a
Minimum Maximum
39 W 45 W
14 W 45 W
8 W 45 W
Subject to alterations.