Bedienungsanleitung A.O. Smith Upsilon UB-70 (Seite 10 von 68) (Englisch)

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Installation and Service Manual Upsilon-Series

4 Description

The Upsilon is a condensing and modulating CH-boiler.

The boiler has one or two stainless steel heat exchangers with smooth pipes. A high-

tec principle with durable materials suitable for room sealed open ue or over pressure

cascade ue systems

The CH-boiler uses (natural) gas to supply heat. This heat is transferred in the heat

exchanger to the water contained in the CH-installation. Severe cooling down of the

ue-gases causes condensation. That is the reason why they are so highly efcient.

The internal syphon drains off the resulting condensate, which does not have a negative

impact on the heat exchanger or its functioning.

The boiler is equiped with its own controller per heat exchanger and is tted with an in-

tegrated cascade manager. The control unit (MMI) allows central read-outs of settings.

Each boiler anticipates the heat demands of the CH-installation or the hot water supply.

Consequently, the boiler modulates its capacity to the installation. As a result, the boiler

will be operational longer at a lower level. The cascade manager controls the boiler order

and even allocation of burning hours.

Connected to an external sensor, the control can operate weather dependent. This means

that the control system measures outside temperatures and water ow temperatures.

Using this data, the control system works out the optimum water ow temperature re-

quired for the installation.

Standard connection facilities for external controls via OpenTherm, on/off-contact or 0-10

volt control are available, including built in time program.

Upsilon CH-boilers are high-powered wall-mounted gas boilers for instances where a lot

of power is required. Cascading the Upsilon CH-boilers provides ample room to connect

up to a maximum of 8 boilers and an output capacity of 1.1 MW. The Upsilon-series is

structured as follows:

- UB 70 Nominal capacity (80/60°C) 60.0kW

- UB 110 Nominal capacity (80/60°C) 95.0kW

- UB 140 Nominal capacity (80/60°C) 120.0kW

Explanation of type indication: Upsilon UB 140

Upsilon = Serie

UB = Type

140 = Indication of input load in kW

In principle any combination is possible. Based on the requested capacity, A.O.Smith’s

online cascade congurator offers various options.

You can choose either the most efcient or the most compact solution yourself.

The capacity of the hydraulic pipes, gas line and low velocity header are adjusted to the

selected overall demand.

WheninstallingasingleUpsilonboilerofcascadedUpsilon boiler,youshould

alwaysusealowvelocityheaderadjustedtothesetdemand.A.O.Smithsupplies

2lowvelocityheaderversions,whicharesuitableforamaximumdemandofeither

452kWor960kW(80/60°C) respectively.

Ifchangesaremadetotheboilerconstructiontheboilernolongercomplieswith

theCErequirements.

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