Pump and mixing unit for underfloor heating MVI MU.501.06

Article: MU.501.06

#	Feature	Value
1	Maximum operating temperature of the medium at the inlet, °С	85
2	Pressure drop between cold and hot water inlet (high to low pressure ratio)	≤ 2: 1
3	Nominal pressure PN, bar	10
4	Temperature setting range, °С	30-60
5	Factory setting, °С	45
6	Connection thread size	1 "
7	Maximum thermal power, kW	22.5
8	Installation length of the installed pump, mm	130

Overview Model overview Those. information Download Colors DOP, CAD

Overview

The MVI pump-mixing group is designed to create an open circulation loop with a low coolant temperature in the heating system of a building. It is mounted on the collector group of the low temperature circuit. It is connected to the high-temperature circuit of the heating system.

Model overview

Those. information

The products must be operated at the pressure and temperature specified in the table of technical characteristics. Freezing of the working medium inside the valve is not allowed. It is recommended that group maintenance be carried out every 6 months with a qualified installer.
Instructions for replacing the circulation pump:

1. Disconnect the power supply.
2. Close the ball valves (fig. 5 item 1) and all the block valves (or flow meters) of the manifold block.
3. Drain the heating medium through the lower collector using a drain valve. It is impossible to remove water from the pumping and mixing group, since a check valve is installed at the lower section of the unit.
4. Loosen the connections.
5. Disconnect the power cable from the pump.
6. Remove the circulation pump and replace with a new one.
7. Reconnect the power supply cable of the circulation pump according to the instructions given on the pump itself.
8. Tighten the connections.
9. Open the ball valves and shut-off valves (flow meters) of the manifold group, connect the power supply.

Note: in case of failure of the electrical part of the pump (stator), it is recommended to replace only it, and leave the hydraulic housing.

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Materials

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#	Part name	Material	Material grade according to norms
#	Part name	Material	RF	EN
1	Corpus	Brass	ЛС-59-2	CW617N
2	Bypass	Brass	ЛС-59-2	CW617N
3	Rokyat	Polymer	Polyamide	PA6 + GF
4	Seals	Elastomer	Rubber	ERDM
5	Pump Nut	Brass	ЛС-59-2	CW617N