Applications; Pumped Liquids; Installation; Positioning The Pump - Grundfos UPED 80-120 FZ Montageanleitung Und Bedienungsanleitung

•
Temperature influence.
The pump head varies depending on the liquid
temperature.
• External fault signal via a potential-free output.
• External analog control of head or speed from
an external 0-10 V signal transmitter.
• External forced control via inputs for
– start/stop
– min. curve.
•
Bus communication.
The UPE(D) FZ circulator pumps incorporate an
input for bus communication. The pump can be
controlled and monitored by a building
management system.
•
Remote control.
The pump can be operated with the Grundfos
R100 remote control.

3. Applications

The UPE(D) FZ circulator pumps are designed for
circulating liquids in heating systems.
The UPE(D) FZ range is suitable for
• systems with a constant flow where it is
desirable to optimise the setting of the pump duty
point.
• systems with variable flow-pipe temperatures.

3.1 Pumped liquids

Thin, clean, non-aggressive and non-explosive
liquids, not containing solid particles, fibres or
mineral oil.
In heating systems, the water should meet the
requirements of accepted standards on water quality
in heating systems, for example the German
standard VDI 2035.
Warning
The pump must not be used for the
transfer of flammable liquids, such as
diesel oil, petrol or similar liquids.

4. Installation

4.1 Positioning the pump

The arrow on the pump housing indicates the liquid
flow direction through the pump.
Warning
Make sure that persons cannot
accidentally come into contact with
the hot surfaces of the pump.
The pump must be installed with the motor shaft
horizontal.
See mounting dimensions at the end of these
instructions.
6

4.2 Mounting the pressure sensor

Mount the pressure sensor only after
Note
the pump has been installed in the
system.
See fig. 1.
1. Place the O-ring in the seat of the pump housing.
2. Place the sensor housing without damaging the
O-ring.
3. Fit and tighten the two screws.
Mounting the pressure sensor
Fig. 1

4.3 Control box positions

The control box must only be turned to
Note
the positions shown on page 310.
The arrows show the allowed/possible flow
directions.

4.3.1 Changing the control box position

Warning
Before any dismantling of the pump,
the system must be drained, or the
isolating valves on either side of the
pump must be closed, as the pumped
liquid may be scalding hot and under
high pressure.
Correct control box position
Fig. 2
Change the control box position as follows:
1. Slacken the cable clamp of the pressure sensor.
2. Remove the four screws holding the pump head.
3. Turn the pump head to the desired position.
4. Refit the four screws and tighten securely.
5. Adapt the pressure sensor cable, and tighten the
cable clamp.
Warning
Make sure that the pressure sensor
cable cannot come into contact with
the pump head.