Cascade system for MHS Ultramax Thision L wall-hung boilers

Boilers, MHS
Cascade kits for its Ultramax Thision L wall-hung boiler are now available from MHS Boilers.

MHS Boilers now offers a cascade system for its recently introduced Ultramax Thision L wall-hung boiler. The cascade kit enables a modular system of up to eight boilers to be created and deliver a total output of up to 1140 kW — said to be the most powerful manufacturer-supplied cascade system available in the UK. Three cascade systems are available — wall mounting in line for up to six boilers and freestanding back to back for three to eight boilers.

The cascade system comprises two sets of components. The boiler cascade set consists of a mounting frame with interconnecting gas and water pipes. There is also a flue cascade set that provides an off-the-peg arrangement for connecting flues from individual modules into a common duct. The frame sets are available with a standard low-loss header or an optional header which incorporates dirt and air separation. For complete hydraulic separation, cascade sets with a plate heat exchanger are available for systems up to 462 kW.

All Ultramax Thision L boilers have a modulating control system for the burner and which can also drive a variable-speed pump if desired. The default setting is for a constant flow temperature, but weather compensation can be provided with an optional outside-air-temperature sensor.

Standard built-in controllers can be configured to operate in a master/slave arrangement to provide a cascading control function for up to 16 boilers.

The control of heating circuits and domestic hot water can be added with the inclusion of optional extra control components, with up to eight heating circuits being within the scope of capability.

For more information on this story, click here: September 2011, 104
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