Bedienungsanleitung Siemens RMH760B (Seite 8 von 14) (Englisch)

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Siemens Operating Instructions RMH760B, RMK770 CE1B3133_en

Building Technologies Do you want to display the current operating state of the heating circuit? 2015-03-31

Do you want to display the current operating state of the heating circuit?

If, during automatic heating operation, you want to know

your plant’s current operating state (the room operating

mode), go to the Info level:

1. Return to the start display by pressing the ESC

button.

2. Press the INFO button.

3. Turn the OK knob until the required page appears.

If your plant comprises several heating circuits, you can

have your plant’s operating state displayed for every

heating circuit (turn the OK knob until the desired heat-

ing circuit appears).

In the same way, you can have the DHW circuit dis-

played (if present), as well as other data.

The room operating state is displayed as follows:

Heating circuit 1

Presel:

State: Comf

Cause: Time switch

Meaning:

Preselection

This is the selected room operating mode.

In the example shown, the virtual operating mode selector is set

State

This is the current state.

In the example shown, the Comfort setpoint is maintained.

Cause

Here, the cause for the current state is given. Possible reasons:

· Operating mode contact (manual changeover)

· Operating mode selector (manual changeover)

· Special day

· Holidays

· Time switch of the time program (in the example shown)

Do you want to start DHW heating?

(Only with RMH760B)

Prerequisites

The heating plant must be commissioned by the heating

engineer.

When the preconditions are met, DHW heating is ready

to be started. Select menu option Preselection and then

select operating mode

. This is the recommended

and energy-saving operating mode.

The following choices are available:

Symbol Operating mode Impact on the DHW circuit? Guide value

Automatic The DHW temperature changes according to the DHW time program, from

normal temperature to reduced temperature, or vice versa

Normal The DHW is maintained at the normal temperature 55 °C

Reduced The DHW is maintained at the reduced temperature 40 °C

Protection No DHW heating: The plant remains protected against frost however 5 °C

Path:

Main me

DHW

DHW optg m

Preselection

Is the DHW too hot or too cold?

(Only with RMH760B)

For the DHW temperature, you have 3 setpoint choices:

· Normal setpoint to ensure the high temperature level

required for washing, bathing and showering

· Reduced setpoint to save energy

· Frost protection setpoint at a minimum temperature level

to prevent freeze up of plant

Adjust the required setpoint on the Setpoints submenu.

When making the settings, observe that …

· extremely hot DHW can lead to scalding!

· extremely hot DHW produces scale on the storage tank

and / or the heat exchanger, the thermostat, the piping

and the valves!

For this reason, make certain that the normal DHW tem-

perature will not exceed 55 °C.

Path for plant without consumer control:

Main menu

DHW

Setpoints

Path for plant with consumer control:

Main menu

DHW

Setpoints consu

ers

To kill legionella viruses, the DHW can be periodically heated up. This takes place automatically and there is no need for you to

make specific settings.

All that is required is that your heating engineer has activated the function.

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