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Fig.2
Installation Procedures
Mounting Positions
The arrows on the flanges of the pump indicate the direction of water
flow. Although the VersaFlo UPS may be installed in either vertical or
horizontal piping, the motor shaft must always remain horizontal, as
shown in Fig. 1 of the Terminal Box Position instructions and as shown in
Fig. 2 to the left.
Also remember: Pumps installed outdoors must be protected by a
ventilated, watertight cover to keep out moisture and dirt.
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WARNING: The pump must be positioned so that someone cannot
A
accidentally come into contact with the hot surfaces of the pump.
'~nl~
AVERTISSEMENT,
La pompe dolt et,e placee de sorte que personne ne puisse
.IJ/·,·u,
aCCIdentellement toucher ses surfaces chaudes.
3.
Connect the Pump
Install the pump into the piping system. Grundfos recommends that pressure gauges be in-
stalled in the inlet and discharge flanges or pipes to check pump and system performance.
4.
Electrical Connection
The electrical connection and protection should be carried out in accordance with
the latest edition of the National Electrical Code, local codes and regulations by
a qualified electrician.
WARNING: Never make any connections in the pump terminal box
unless the electrical supply has been switched off.
o
The pump must be grounded.
o
The pump must be connected to an external main power switch.
AVERTISSEMENT: Ne jamais etablir de connexions dans la boTte de jonction de
la pompe
a
moins que I'alimentation electrique n'ait ete coupee.
o
La pompe doit etre mise
a
la terre.
o
La pompe doit etre raccordee
a
un interrupteur d'alimentation principale externe.
The operating voltage and frequency are marked on the pump nameplate. Make sure
that the motor is suitable for the electrical supply it is being installed to.
The pump should be grounded to protect against indirect contact and a ground fault
interrupter can be used as extra protection.
Multi-Speed Pump (1 phase)
All single phase pumps are equipped with built-in, automatic resetting, thermal overload
protection. The pump is protected at all three speeds.
Multi-Speed Pump (3 phase)
The pump must be connected to the electrical supply via an external contactor. The
contactor must be connected to the built in thermal overload switch terminals T1 and
T2 (3x208-230V) or P1 and P2 (3x460V & 575V) to protect the pump against overloading
at all three speeds.
OR: If the pump is protected by means of a motor starter, the starter must be set
to the current consumption of the pump at the selected speed. The motor starter setting
must be changed every time the pump speed is changed. The current consumption at the
individual speeds is stated on the pump nameplate.
Figures 4, 6, 7, 9, and 10 on the next page show the possible connections:
Page 4
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