Grundfos ALPHA1 Series User Manual

6
English (US)
4.3 Changing the power head position
• Make any change to the power head
orientation before filling the system with
liquid. You can turn the power head in steps
of 90 °.
• See fig. 3 for permissible positions.
• Only use orientations C and D for CSA,
enclosure type 2.
Proceed as follows:
1. If liquid is present, drain the liquid from the
pump or isolate the liquid from the pump.
2. Remove the four socket head cap screws.
3. Turn the pump head to the desired position.
See fig. 3.
4. Cross-tighten the screws to: 7 ft-lbs torque.
Fig. 3 Changing the power head position
Fig. 4 Remove the four socket head cap
screws on the power head to
change the power head position
CAUTION
Hot surface
Minor or moderate personal injury
- Position the pump so that persons
cannot accidentally come into
contact with hot surfaces.
DANGER
Electric shock
Death or serious personal injury
- Switch off the power supply before
starting any work on the product.
Make sure that the power supply
cannot be accidentally switched on.
WARNING
Pressurized system
Death or serious personal injury
- Before dismantling the pump, drain
the system or close the isolating
valve on either side of the pump
before you remove the screws. The
pumped liquid may be scalding hot
and under high pressure.
If you change the position of the
power head, fill the system with the
liquid to be pumped or open the
isolating valves.
TM06 8887 1417
TM06 8885 1417
Power head
orientation A
Power head
orientation B
Power head
orientation C
Power head
orientation D

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"