Installation And Connection; Operation; Preparing For Start-Up - VWR VP 820 Manual Del Usuario

English
The control for the drying system is effected via three variables:
 The time between switching on the drying system and the first ventilation of the pump heads (t
 The duration of the ventilation of the pump heads (t
 The interval between pump head ventilation operations (t
For t to t standard values are set in the factory.
1 3
 t = 210 sec
1
 t = 2.0 sec
2
 t = 40 sec
3
In addition to this, the drying process can also be individually adapted to a process sequence. To do this, the
values for t , t , and t can be altered (see Section 7.4). The pump must be disconnected from the electricity
1 2 3
mains beforehand.
6.

Installation and connection

Only install and operate the pumps under the operating parameters and conditions described in chapter 4,
Technical data.
Observe the safety precautions (see chapter 3).
6.1 Installation
 Before installation, store the pump at the installation location to bring it up to room temperature.
 See chapter 4, Technical data, for the dimensions of pump.
 Install the pump so that the motor fan can intake sufficient cooling air.
 Make sure that the installation location is dry and the pump is protected against rain, splash, hose and
drip water.
 Choose a safe location (flat surface) for the pump.
 Protect the pump from dust.
 Protect the pump from vibration and jolt.
6.2 Connection
 Only connect components to the pump which are designed for the pneumatic data of the pump (see
chapter 4).
 If the pump is used as a vacuum pump, safely discharge the pump exhaust at the pump's pneumatic
outlet.
A marking on the pump head shows the direction of flow.
1. Remove the protective plugs from the pneumatic connectors of the pump.
2. Connect the suction line and pressure line.
3. At the end of the pressure line, install a container for collecting the condensation that is drained from the
pump.
4. Lay the suction and pressure line at a downward angle to prevent condensate from running into the
pump.
5. Insert the power cable's plug into a properly installed shockproof socket.
7.

Operation

7.1

Preparing for Start-up

Before switching on the pump, observe the following points:
Operational requirements
Pump  All hoses attached properly
 Fan openings not blocked
 Specifications of the power supply correspond with the data on the pump's type plate.
 The pump outlet is not closed or constricted.
 Container at the end of pressure line.
8
)
2
).
3
)
1