7.2 Installation location
The installation location of the dosing pump must be easily accessible by operating and service personnel.
ATTENTION!
Ambient temperatures above 40 °C are not permitted. Radiant heat from apparatus and heat exchangers
must be shielded so that heat from the dosing pump can be dissipated sufficiently. Avoid exposure to direct
sunlight. If the dosing pump is installed outside, provide a roof to protect it from the effects of weather.
Install the pump so that the suction and discharge valves are in vertical position. To ensure stability, the
dosing pump must be screwed onto an appropriate surface. The system piping must not exert any force on
the connections and valves of the dosing pump. To avoid dosing errors at the end of the process, the dosing
pump must be locked electrically and hydraulically.
7.3 Electrical connection of the dosing pump
The electrical connection of the dosing pump must be made according to local rules and regulations and
may only be carried out by qualified technical personnel. Cable type and cross-section of the supply lines
must be chosen according to the motor data. The cable passage to the motor terminal box must be made
professionally. We recommend using gland connections with strain-relief clamp. The required protection
class must be ensured by professional-standard installation of the electrical connections.
For external switch-off of the dosing pump, see paragraph 8.3.
ATTENTION!
Dosing pumps with explosion-proof motors must be installed and commissioned by specialists qualified
to work with equipment intended for use in potentially explosive atmospheres. The user is responsible for
ensuring that explosion-proof motors are connected correctly. Both the motor and the dosing pump must be
grounded to prevent electrostatic discharges.
DANGER!
Risk of burns. Shock wave: parts may fly off and cause fatal injury. FEDOS DX must not be used in a poten-
tially explosive atmosphere under any circumstances. The electrical connection of the dosing pump must be
made according to local rules and regulations and may only be carried out by qualified technical personnel.
NOTE!
The dosing pump must be plugged into a grounded power outlet.
The 230 V AC version of the FEDOS DX is connected by a shockproof earthing-pin plug. The 115 V AC ver-
sion is equipped with a UL/CSA plug.
NOTE!
Signal cables must not be laid parallel to high-voltage current lines or mains cables. Lay supply and signal
lines in separate channels. An angle of 90° is required at line crossings. If signal lines are more than 2
meters long, shielded cables must be used.
ATTENTION!
To avoid premature wear of the gear, always ensure the correct rotation direction of the motor: counter-
clockwise (to the left), looking toward the fan wheel.
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| Operating Manual FEDOS E/DX | Installation
