Grundfos ALPHA1 Series User Manual

16
English (US)
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
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.
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
3
and a
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
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.
Subject to alterations.
Liquid
temperature
Minimum
inlet pressure
167 °F (75 °C) 0.75 psi (0.05 bar)
194 °F (90 °C) 4.06 psi (0.28 bar)
230 °F (110 °C) 15.7 psi (1.08 bar)
Ambient
temperature
[°F (°C)]
Liquid temperature
Minimum
[°F (°C)]
Maximum
[°F (°C)]
32 (0) 36 (2) 230 (110)
50 (10) 50 (10) 230 (110)
68 (20) 68 (20) 230 (110)
86 (30) 86 (30) 230 (110)
95 (35) 95 (35) 194 (90)
104 (40) 104 (40) 158 (70)
In domestic hot water systems, keep
the liquid temperature below 149 °F
(65 °C) to eliminate the risk of lime
precipitation.
Speed
setting
Minimum Maximum
Constant
pressure
III 39 W 45 W
Constant
pressure
II 14 W 45 W
Constant
pressure
I 8 W 45 W

Grundfos ALPHA1 Series Specifications

General

Series	ALPHA1
Voltage	230 V
Temperature Range	2°C to 110°C
Max Operating Pressure	10 bar
Enclosure Class	IP42
Insulation Class	F
Type	Circulation Pump
Frequency	50 Hz
EEI (Energy Efficiency Index)	0.20
Material	Cast iron
Connection Size	1"