Diaphragm Vacuum Pumps UN012, UN024, UN036_I
Installation
5
3. Installation
The pumps are built-in devices intended for installation in
equipment. When installing them make certain that accident
prevention regulations, and safety instructions, including
those for subsequent operation are observed. The safety
instructions in section 2 must be observed.
The dimensions of the mountings are given in Data Sheet.
Install the pump so that the fan can draw in sufficient cooling air.
Fit the pump at the highest point in the system, so that condensate
cannot collect in the head of the pump - that prolongs working life.
DANGER
Extreme danger from electrical shock
Î
Only have the pump connected by an authorized
specialist.
Î
Only have the pump connected when the power
supply is disconnected.
Compare the supply data with the data on the motor-plate. The
voltage must not vary by more than +10% and -10% from that
shown on the type-plate.
In the electrical installation, arrangements (complying with EN
60335-1) must be made for disconnecting the pump motor from the
electrical supply.
The pump must be installed so that contact with live parts (e.g.
electrical connection) is impossible.
We recommend that a fuse is installed in the supply circuit; the
operating current is given in Data Sheet.
Electrical connection
1. Take off the housing for the electronics or terminal cover (see
fig. 2); to do this, release the four screws.
2.
Draw the mains cables into the electronics housing or the
terminal cover through the free cable screw holes.
Mechanical
Electrical
Fig. 2: Explanation of important
elements on the basis of example
UN 012 ST.26 I
Specification
1
Head
insulation
2
Fixing screws of head
insulation
3
Electronic housing (.-26-
design only) or terminal
cover (.-11-and .16-
designs)
