English
Outline and pipe dimensions (Fig. 4).
Dimensions
Helix EXCEL 10.../20.../30... Helix EXCEL 50.../80...
A
B
C
D
E
9 7/8"
F
6 3/4"
G
1 1/4"
H
J
5.3 Scope of Supply
• Multistage pump.
• Installation and operating instructions.
5.4 Accessories
Original accessories are available for HELIX range.
The accessories must be ordered separatly.
• IF-Module PLR for connecting to PLR/interface
converter.
• IF-Module LON for connection to the LONWORKS
network (Fig. A6).
• Non-return valves (with nose or spring ring when
operating in constant pressure).
• protection kit against dry-running.
• sensor kit for pressure regulation (accuracy:
≤ 1 % ; use between 30 % and 100 % of the
reading range).
Use of new accessories is recommended.
6. Description and function
6.1 Product description
Fig. 1
1 - Motor connection bolt
2 - Coupling guard
3 - Mechanical seal
4 - Hydraulic stage casing
5 - Impeller
6 - Pump shaft
7 - Motor
8 - Coupling
9 - Lantern
10 -Tube liner
11 -Flange
12 -Pump housing
13 -Base plate
10
Types
12 5/8"
18 1/4"
17 5/16"
16 1/8"
11 3/4"
7 1/4"
2"
4"
5"
4x Ø9/16"
Fig. 2 and 3
1 - Strainer
2 - Suction side isolation valve
3 - Discharge side isolation valve
4 - Check valve
5 - Drain + priming plug
6 - Air bleed screw + Filling plug
7 - Tank
8 - Foundation block
10 -Lifting hook
Fig. A1, A2, A3 and A4
1 - Dip Switches
2 - Pressure sensor
3 - Tank
4 - Tank isolation valve
6.2 Design of product
• Helix pumps are vertical high pressure non-self
priming pumps with inline connection based on
multistage design.
• Helix pumps combine use of both high efficiency
hydraulics and motors (if any).
• All metallic parts in contact with water are made
of stainless steel.
• For models equipped with heaviest motor > 90lbs
(40Kg), a specific coupling allows to change the
seal without removing the motor. A cartridge seal
is then used in order to ease maintenance.
• Special handling devices are integrated in order to
facilitate pump installation.
7. Installation and electrical connection
Installation and electrical work in compliance
with any local codes and by qualified personnel
only.
WARNING! Bodily injury!
Existing regulations for the prevention of acci-
dents must be observed.
WARNING! Electrical shock hazard!
Dangers caused by electrical energy must be ex-
cluded.
7.1 Commissioning
Unpack the pump and dispose of the packaging
in an environmentally-responsible manner.
7.2 Installation
The pump must be installed in a dry, well-venti-
lated and frost-free place.
CAUTION! Possible damage of the pump!
Dirt and solder drops in to the pump body can af-
fect the pump operation.
• It is recommended that any welding and solder-
ing work be done before installing the pump.
• Thoroughly flush the system out before
installing the pump.
WILO SE 05/2014