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Bosch Compress 7000 AWM Manual

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Product description
Compress 7000 AWM/AWMS 5-17 – 6721830635 (2021/02)
4
2 Product description
This is an original manual. This manual may not be translated without the
approval of the manufacturer.
The heat pump Compress 7000 AW is together with the indoor units
AWM, AWMS part of a series of heating systems that use outside air to
provide energy for water transferred heat and hot water. By reversing the
process and extract heat from the water and release it into the outdoor
air, the heat pump can if needed produce cooling. This however requires
the heating system to be set up for cooling.
The heating system is operated via a user interface, which is found in the
indoor unit. The user interface manages and supervises the system with
different settings for heat, cold, hot water and other operations. The
monitoring function will e.g. turn off the heat pump in case of
disturbances to avoid damage to vital components.
2.1 Typeplate
• Compress 7000 AW: The typeplate is located on the backside of the
heat pump.
• AWM / AWMS: The type plate is located on the top cover of the indoor
unit.
On the type plate there are information about output power, article
number, serial number and date of manufacturing.
2.2 Declaration of Conformity
The design and operating characteristics of this product comply with the
European and national requirements.
The CE marking declares that the product complies with all the
applicable EU legislation, which is stipulated by attaching this
marking.
The complete text of the Declaration of Conformity is available on the
Internet: worcester-bosch.co.uk.
2.3 Heat pump (outdoor unit)
The heat pump is inverter operated, which means that it will
automatically change the compressor speed to deliver the exact amount
of energy required at the moment. The fan is also RPM controlled and will
change its speed as needed. This provides the lowest possible energy
consumption.
The speed changes have an effect on the sound emissions, as higher
speed results in higher sound emission.
Defrosting
Ice might form on the evaporator during lower outside temperatures. In
case there is enough ice to inhibit the air flow through the evaporator, an
automatic defrosting will start. As soon as the ice is gone, the heat pump
returns to its normal operation.
If the outside temperature is above +5 °C the defrosting will be
performed alongside continued heat production, however if the
temperature is lower, the defrosting is done by ways of a 4-way valve
turning the heat medium direction in the circuit so that the hot gas from
the compressor melts away the ice. The duration of the defrost cycle
depends on the actual outdoor temperature and the amount of frost on
the evaporator.
2.3.1 Operating range of heat pump without auxiliary heater
The heat pump switches off at approx. – 20 °C or +35 °C. The indoor
unit or an external heat source then take over the heating and DHW
heating. The heat pump restarts if the outdoor temperature exceeds
roughly – 17 °C or falls below +32 °C. In cooling mode the heat pump
switches off at roughly +45 °C and restarts at roughly +42 °C.
Fig. 1 Heat pump without auxiliary heater
[1] Maximum flow temperature (T0)
[2] Outdoor temperature (T1)
35
45
50
55
60
-30
T1[°C]
T0[°C]
30
25
20
15
10
-20 0-10 10 20 30 40
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2
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