41
Dosing pumps
User Manual PoolManager
®
75
41
Dosing pumps
41.1
Peristaltic pumps
The standard PoolManager
®
dosage pumps are so-called peristaltic
pumps. Rollers on the rotor continuously squeeze the dosage hose,
thereby providing for the dosing of maintenance products.
The pump's dosage hose is replaceable. The pump's dosing output
can be adjusted via various hose diameters.
The following table shows the standard dosing outputs on
PoolManager
®
dosage pumps.
Function
Standard dosing hos
(dosing output)
pH (pH minus / pH plus)
1.5 l/h
Cl (ChloriLiquid)
1.5 l/h
O2 (BayroSoft)
3 l/h
The pumps used are run with a 230V~ power supply. PoolManager
®
control system periodically turns the dosage pumps on and off within a
fixed dosage cycle (typically 60s) in order to realise the dosing output
calculated. A higher dosing output will lead to longer turn-on times.
41.1.1
Electrical connection
Requisite user qualification:
ELECTRICAL SPECIALIST
The electrical connection for eco mode may only be
performed by an ELECTRICAL SPECIALIST as
defined in the chapter
User qualification.
The following figure shows the internal wiring of the three dosing
outputs for disinfection, pH-, and pH+. All connections shown are run
internally as conductor paths.
1
Fuse 2AT for the 230V~ Phase L
D
for supplying dosing outlets
The following terminal blocks are allocated to the dosing outputs:
Dosing output
Terminal block
Function
Disinfection
20
NO switch
pH- (pH minus)
27
NO switch
pH+ (pH plus)
22
NO switch
Each terminal block is set up as follows:
Terminal
Function
b
Working contact
a
Centre contact
LD
Supply phase 230VAC for dosing outputs.
Can be bridged to the centre contact if needed in
order to control 230VAC devices.
The following figure schematically shows the connection of a standard
dosage pump for 230V~. The pump is connected to the disinfection
dosage output. For pH- and pH+, connection is correspondingly on
terminal blocks [21] and [22], respectively.
1
Standard dosage pump 230V~
(peristaltic pump)
2
Wire bridge in the terminal box from phase L
D
to
centre relay contact a
INFO
Connection of neutral conductor N and PE
A dosage pump's neutral conductor N and protective
earth PE can be connected to the terminal blocks
intended for the purpose N
D
and PE as shown in the
figure.
Wire bridges in the terminal box from phase L
D
to the dosage outputs'
centre relay contact a