Klingenburg CERTO, Документация

Страница: 6 / 52

6
Pump group
The CERTO is supplied via a high-pressure pump that functions using a belt-driven electric motor.
It is a robust high-pressure pump with ceramic pistons, a drive housing made of die-cast aluminium, a crankshaft with a
ball bearing and an oil sight glass. Water-lubricated pumps can also be used. The pump head is chemically nickel-plat-
ed, meaning it can also be used with deionised water. The pump with the drive motor and all safety installations is referred
to as a pump assembly.
On the low-pressure side the water enters the filter unit
with a 100 micron screen of the pump. The filter unit pro-
tects the pump and the nozzles against damage and ob-
struction.
The pump unit is equipped with a solenoid valve and a
pressure control device on the low-pressure side. The
solenoid valve stops the water supply when the unit is
switched off.
The pump can only work properly with sufficient water
supply pressure of 2 bar (30 psi) since it is not selfpriming.
This water pressure is checked by the pressure control
device. In case of a water supply pressure of 2 bars the
pressure control device releases the pump for operation.
If the water pressure falls below 1.6 bars (24 psi) the drive
motor of the pump is switched off. By return off the mini-
mum pressure, the pump is switched on. By operation of
more then one humidifier with one reverse osmosis equip-
ment, every pump must have a pressure of more than 2
bar (30 psi).
The water leaves the pump on the pressure side and is
sprayed through the nozzles of the humidifier. The water
pressure is indicated by a pressure gauge. For the pro-
tection of the pump a pressure switch is installed on the
pressure side. If the admissible pump pressure is exceed-
ed, the pressure switch device gives a signal to the control
unit to reduce the speed of the pump and an error mes-
sage is given.
Before leaving the factory the pump is operated with the
appendant Klingenburg humidifier in order to check it for
Û
Function of the Pump station
Û
Water quality
CERTO humidifiers ar operated with reverse-osmosis
deionised water.
The eletrical conductivity for the humidifier water can not
exceed the value of 5-20 µS/cm. Max. Hardness degree
1°dH.(german hardness). at 20°C.
PH - Wert: 7 +/- 1.
The particle freedom of the water is up to the operator.
The volume flow from the water treatment plant to your
pump station should be greater than the maximum ca-
pacity of the humidification system.
To add water to your pumping station, you can choose
between a 1/2 “threaded female thread and a supplied
13mm hose connector.
The standard version includes a 3m supply hose (1/2
“DN13) with DVGW approval. Optionally, other hose
lengths can be enclosed.
Water-
supply
Solenoid
valve
Check
valve
Filter
Solenoid
valve
Pressure
sensor
D1
Pressure
sensor
D2
Pump PS
PS
M
Solenoid
valve
Nozzle
System
Nozzle
System