Connection Of Mains-Water Pipe - Grundfos RMQ A Instrucciones De Instalación Y Funcionamiento

3. Before fitting a bend, if required, check that the
DN 70 pipe has a vertical fall of minimum 50 cm.
Connect the overflow to the sewage system via a
vented pipe.
The RMQ overflow does not function as a
water seal.
1
2
Fig. 4 Overflow to sewer, example 1
Pos. Description
1 Vent cap
2 Water seal
Fig. 5 Overflow to sewer, example 2

8.4 Connection of mains-water pipe

The built-in float valve is designed for a maximum
pressure of 6.0 bar.
The float valve has a simple filter in the inlet. If the
mains water is particularly dirty, we recommend that
you fit a strainer in front of the inlet to the float valve.
Fig. 6
Min. 0.5 m
We recommend that you fit an isolating valve in the
fixed installation.
Procedure:
1. Connect the mains-water pipe to the mains-water
hose of the unit. See fig.
2. Fasten the mains-water pipe with pipe clamps.
The first hose clamp must be fitted at a maximum
distance of 10-15 cm from the unit.
3. Check that the float valve is positioned straight in
the mains-water tank. See fig. 7.
Min. 0.5 m
Fig. 7
Filter in the inlet
Do not push or pull the mains-water hose;
otherwise it may cause failure of the float
valve.
– The float valve must be able to move freely up
and down without touching the sides of the
tank.
The float valve seen from above
1 (4).
9