3
1. General
1.1. Tender text
multicontrol modular for lossless storage of the expansion volume and for pressureMCM
maintenance in closed heating, climate and cooling systems. Designed and manufactured acc.
to regulations of 12828 and 93-1.EN SWKI
The multicontrol device is a nicely shaped, self-contained unit with a pleasing design. It isMCM
designed for a modular combination with external expansion vessels (max. 0.5 bar). The
connections for suction pipe and overflow pipe are situated at the back of the device.
The control unit is built very compact with one resp. two low-noise pressure maintenance
pump(s) (model Solo 1x100%, model Duo 2x50%, model Maxi 2x100%) which is/are executed as
multistage centrifugal pump(s) with high quality floating-ring type shaft seal. Also the
multicontrol hydraulics includes one resp. two continuously regulating, mechanically set
overflow valve(s) (models Solo, Duo and Maxi 1x100% of the expansion flow, models Duo-twin
and Maxi-twin 2x100%). High-precision measuring of the plant pressure. Hydraulic connections
and necessary shutoff devices for on-site piping are factory provided on the left side of the
control unit (possibility for rebuilding to the right side of the control unit). Temperature
monitoring of the media streaming into the vessel.
Prepared connection point for mounting a makeup module for litre accurate measuring.
Combinable with water softening for standardized makeup water.
Prepared connection point for mounting a degassing module for automatic and economic low
pressure degassing, based on the principle of pressure drop. The connection and the necessary
shutoff device for the degassing pipe is situated at the back of the control unit.
All operations are controlled by the microprocessor electronics. The operator panel is situated
ergonomically and containes a illuminated 4-line text display. The handling is thought-out and a
lot of languages are supported. The measure- and control unit is executed in a closed electrical
cabinet. Four potential-free signalling contacts (fault, warning, makeup in operation, device
operation enabled).
For more signals two additional expansion modules can be installed easily in prepared mounting
positions. Remote monitoring can be done also via multicontrol module or multicontrol busSMS
module. External temperature monitoring via an optional temperature sensor at the connection
point is prepared too.
max. operation temperature of the plant: 110 °C (with cooling vessel)EV
max. temperature at the connection point: 70 °C
1. General
