Installing the Dosing Pump
Installation examples
17
Subject to technical changes.
Stepper motor-driven diaphragm dosing pump NXP-M and NXP-P
Operating instructions
7 Installing the Dosing Pump
DANGER
Mortal danger from electric shock!
Electrically conductive liquid can enter pump housings, cable screw
connections and mains connectors.
ð
Make sure that all protective measures comply at least with the
requirements of protection class IP65.
ð
Always set up the dosing pump such that water cannot enter the
housing.
CAUTION
Danger of personal injury and material damage!
A dosing pump that is difficult to access represents a danger due to
incorrect operation and faulty maintenance.
ð
Install the dosing pump such that it is accessible at all times.
Especially the oil level glass, the oil inlet and the oil drain.
7.1 Set up information
When installing, follow the basic principles below:
n
The valves must be vertical: Discharge valve at top, suction valve at
bottom. in this connection, pay attention to the arrow on the dosing
head. The dosing head must be aligned such that the arrow points
vertically upwards.
n
You should install the dosing pump at a convenient height for
operation.
n
It must not be installed under the ceiling.
n
The frame of foundation for fixing the dosing pump must not be
subjected to jolts. The pump must be vibration-free and stable.
n
There must be enough free space in the area of the dosing head and
the suction and discharge valves for these parts to be easily
dismantled if required. The entire space requirement for installation
and maintenance is approximately 1 m².
n
The distance from the sides of the dosing pump to the wall or other
dosing pumps or equipment must be at least 3 cm. There must be a
guaranteed flow of circulating air.
n
The maximum ambient temperature must be complied with, see
chapter 5.2 “Operating conditions and limits“ on page 13. If
necessary, radiant heat from surrounding equipment must be
screened.
n
Avoid exposure to direct sunlight.
n
The dosing pump is not intended for use out of doors unless
appropriate protective measures have been taken to prevent dust and
water from entering the housing.
n
For the dimensions of the fastening holes, refer to chapter 6
“Dimensions“ on page 15.
n
The tightening torque for the fastening bolts is 1.5 – 2 Nm.
7.2 Installation examples
7.2.1 Installation on a wall console
Fig. 10: Installation on a wall console
To reduce the structure-borne noise, the dosing pump is bolted to the wall
bracket using rubber elements. The materials necessary for this are
included with the wall bracket.
7.2.2 Installation on the wall
Fig. 11: Installation on the wall
The dosing pump can be mounted to the floor or directly to the wall
without the need for additional elements. Turn the dosing head appropri-
ately to ensure the flow direction of the medium through the dosing head.