Page 21 - Bosch Hot Water Boilers

Hot water boilers | 21

High level of efficiency for reduced operating costs

The UNIMAT hot water boiler UT-HZ is a shell boiler in three-pass technology with two flame tubes and com-
pletely separate smoke gas passages.
 High level of efficiency due to three-pass technology, an integrated flue gas heat exchanger and effective
heat insulation materials
 Up to 93 % boiler efficiency without flue gas heat exchanger, up to 96 % boiler efficiency with flue gas heat
exchanger and up to 105 % with condensing heat exchanger
 Pollutant-reduced combustion thanks to the use of highly developed firing systems and careful matching of
the best boiler and burner combination
 Double modulation range due to two flame tubes permits a particularly high efficiency, also in partial load
operation
 Flexible and efficient use: for heating and hot water supply in public buildings, in commercial and industrial
companies and as base load, peak load and back-up boilers at district heating plants

User-friendly operating concept
 Intuitive boiler control on PLC basis with very high
transparency of operating data
 Prepared for connection to automation systems
 Compatible with the remote maintenance system
MEC Remote

Reliable performance and customised equipment
The double-flame tube/smoke tube boiler with sepa-
rate smoke gas paths is also suitable for operation with
just one burner. The 3-pass principle with a horizontal
rear flue gas reversing chamber positioned in the water
chamber was patented in 1952. Thanks to the modular
design, an economizer can easily be added. The dimen-
sions of the flame tubes, smoke tube bundles and
water chamber are thermodynamically optimised.
 Acceptance in accordance with European
pressure equipment directive, can be applied
almost worldwide
 Suitable for all burner systems
 Simple extension options thanks to module
technology, e.g. for waste heat recovery
 High permissible temperature spread up to 40 K

Quick installation and effective maintenance
 Simple commissioning due to pre-parameterised
boiler control
 Easy wiring on-site thanks to plug-in connections
 Easy to maintain – convenient accessible on both
the flue gas side as well as the water side
 Smoke gas passes are free of flow components