Bedienungsanleitung Bosch Compress 3400i AWS (Seite 7 von 44) (Englisch)

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Product description

Compress 3400i AWS – 6721852066 (2023/01)

3.2 Information on the indoor unit

The AWS E indoor units are intended for installation inside the building

and for connection to the outdoor unit.

Possible combinations of indoor unit with different outdoor units:

Table 5 Possible combinations

AWS E is equipped with an integrated electric booster heater.

3.3 Declaration of Conformity

The design and operating characteristics of this product comply with the

British, European and supplementary national requirements.

The UKCA and CE markings declare that the product

complies with all the applicable British and

European legislation, which is stipulated by

attaching these markings.

You can request the complete text of the Declaration of Conformity from

the UK address indicated in this document.

3.4 Type plate

The type plate of the indoor unit is on the side of the appliance. It

contains information on the part number and serial number as well as the

date of manufacture of the device.

3.5 Functional principle

The function is based on the demand-actuated control of the compressor

output and, if needed, by switching on the integrated electric booster

heater via the indoor unit. The control unit controls the outdoor unit

depending on the set heating curve.

If the outdoor unit is unable to satisfy the heat energy demand of the

house, the indoor unit automatically starts the integrated electric

booster heater which produces the desired temperature in the house

together with the outdoor unit.

The DHW heating is controlled via the TW1 sensor in the DHW cylinder.

During the heat-up phase of the DHW cylinder, the heating mode of the

heating system is temporarily switched off via a 3-way valve. Once the

DHW cylinder is heated up, heating mode is resumed by the outdoor

unit.

Heating and DHW mode when the outdoor unit is deactivated

When the outdoor temperature is below –20 °C (approximately) or

exceeds 45 °C (approximately), the outdoor unit is automatically turned

off and is unable to produce any heat. In this case, the integrated electric

booster heater of the indoor unit adopts the heating and DHW mode.

3.6 Product overview

Fig. 3 Components and pipework connections of the indoor unit with

electric booster heater (views with drip tray)

[1] Automatic air vent valve (VL1)

[2] Electric booster heater

[3] Pressure gauge

[4] Installer module

[5] Reset of the overheating protection

[6] Primary circulation pump (PC0)

[7] Flow to the heating system

[8] Drain of the pressure relief valve and condensates

[9] Return from the heating system

[10] Cable feed for power supply

[11] Cable feed for sensor, CAN-BUS and EMS BUS

[12] Refrigerant out to outdoor unit (liquid)

[13] Refrigerant in from outdoor unit (gas)

AWS E CS3400iAWS

CS3400iAWS 10 E CS3400iAWS 4 OR-S1)

1) A 5/8” to 1/2” adapter is provided with CS3400iAWS 4 OR-S

CS3400iAWS 10 E CS3400iAWS 6 OR-S

CS3400iAWS 10 E CS3400iAWS 8 OR-S

CS3400iAWS 10 E CS3400iAWS 10 OR-S

13 12

8910

001004822-001

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