Electrical Connection - SmedeGaard SimFlex 15-40 Einbauanleitung

Safety
- Pump should be wired
according to the existing
regulations.
- The pump must always
be earthed
- All the wires must be
disconnected before any work is
carried out on the pump.
Personnel qualification and training
Personnel responsible for operation, maintenance, inspection and installation of the pump must be adequately
qualified. The person responsible for the complete installation must ensure that the contents of this manual are
fully understood by any personnel working on the system.
Installation
1) The pump should always be installed with the pump shaft horizontal (See fig. 1). Direction of flow
through the pump casing is indicated by an arrow located on the casing.
2) If terminal box is to be repositioned by rotating the motor, care must be taken to ensure the casing
0-ring is correctly positioned.
3) Ensure pipe work alignment and adequately supported to both the pump and pipe work. Sharp bends
should be avoided nearby the pump.
4) If the pump is mounted in vertical pipe work, flow should be upwards. If flow is downwards, an air-vent
must be fitted at the highest point before pump suction.
5) Pump should never be allowed to operate against a closed valve for more then a few minutes at the time.
6) To avoid accumulation of impurities in the pump, make sure that it is not mounted at the lowest point in
a system.
7) It is recommended that on/off service valves are fitted on either side of the pump.
8) Before installing a new pump the system should be thoroughly flushed to clear any foreign objects that
may be in the pipe work.
9) It is recommended that you mount a dp gauge through the pump casing.

Electrical connection

Electrical data is shown on the nameplate. The pump needs no external protection but must be earthed. How to
connect the wires can be seen on the terminals of the pump (See fig. 2). Also see "Signals".
Venting
Before start up of the pump, fill the system and vent the pump thoroughly. Venting can be achieved by
loosening the plug positioned in centre of nameplate (See fig. 4). This process should be repeated periodically
until all air within the system has been removed. Venting is best done at maxium speed, and should take about
20 minutes.
Duty Control
There are two modes for controlling the pumps.
• Controlled to follow a specific defined differential pressure at different flows (auto).
• Controlled to follow constant speed for systems with constant demand (not standard).
- The surface temperature might be hot.
- When venting the pump (fig. 3),
it could result in a slight escape of hot
water or steam!
9
GB