Changing The Power Head Position; Electrical Installation - Grundfos ALPHA Notice D'installation Et De Fonctionnement

5.3 Changing the power head position

Warning
Before starting any work on this
circulator, make sure electrical
supply has been switched off and
that it cannot be accidentally
switched on.
The power head orientation change should be
made before filling the system with fluid.
Pump liquid may be scalding hot and under high
pressure.
The power head can be rotated in steps of 90 °.
Review fig. 4 for possible/permissible positions.
Only use orientations C and D for CSA
Enclosure Type 2.
Power head
orientation A
Power head
orientation B
Power head
orientation C
Power head
orientation D
Fig. 4 Changing the power head position
Procedure:
1. If fluid is present, drain system fluid from
pump or isolate system fluid from pump.
2. Loosen 4 mm screws and turn the pump
head to desired position; see fig. 4.
3. Insert and cross-tighten the screws to:
7 ft-lbs torque.

5.4 Electrical installation

Warning
Do not energize pump until
properly installed.
Risk of electric shock - this pump
has not been investigated for use
in swimming pool or marine areas.
Warning
Risk of electrical shock - This pump
is supplied with a grounding
conductor and grounding-type
attachment plug. To reduce the risk
of electric shock, be certain that it
is connected only to a properly
grounded, grounding-type
receptacle in accordance with the
National Electric Code and any
state, local governing codes and
regulations.
All electrical work should be performed by a
qualified electrician in accordance with the latest
edition of the National Electric Code and state,
local codes and regulations.
• The motor of Grundfos Alpha is protected by
the electronics in the control box and
requires no external motor protection.
• Check that the supply voltage and frequency
correspond to the values stated on the
pump.
• Only connect the pump to the mains with the
line cord or through the terminal box
supplied; see fig. 5 and 5.
• Do not modify and only use cord set supplied
• Lights on the control panel indicate electrical
supply has been switched on.
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