Bosch Compress 3400i AWS Installation Manual
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Bosch Compress 3400i AWS Installation Manual

Indoor unit for air to water heat pump
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Installation manual
Indoor Unit for Air to Water Heat Pump
Compress 3400i AWS
CS3400iAWS 10 E

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Summary of Contents for Bosch Compress 3400i AWS

  • Page 1 Installation manual Indoor Unit for Air to Water Heat Pump Compress 3400i AWS CS3400iAWS 10 E...

  • Page 2: Table Of Contents

    Maintenance ........21 Compress 3400i AWS – 6721852066 (2023/01)

  • Page 3: Explanation Of Symbols And Safety Instructions

    ▶ Avoid skin or eye contact with refrigerant. manual. ▶ Seek medical attention if you get refrigerant on your skin or in your For operation, follow the instructions of the user eyes. manual. Table 2 Compress 3400i AWS – 6721852066 (2023/01)

  • Page 4: Refrigerant

    ▶ Do not connect any electrical supply to the circuit if a fault that can volume and the total output of the system, water treatment may be compromise safety is detected. required to avoid damage due to the formation of lime-scale. Compress 3400i AWS – 6721852066 (2023/01)
  • Page 5 / cm. To prevent oxygen from entering the heating water, the expansion vessel must be adequately dimensioned. When installing diffusion open pipes, a system separation with the help of a heat exchanger is required. Compress 3400i AWS – 6721852066 (2023/01)

  • Page 6: Product Description

    Bag with connectors for the installation module Outdoor temperature sensor [10] Screws (x2) and dowels (x2) for mounting bracket [11] Screws for drip tray (x4) [12] Copper pipe [13] Heating circuit flow temperature sensor [14] Drip tray Compress 3400i AWS – 6721852066 (2023/01)

  • Page 7: Information On The Indoor Unit

    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) Compress 3400i AWS – 6721852066 (2023/01)

  • Page 8: Product Dimensions And Minimum Clearances

    ▶ Run the connector pipes for the heating system and cold/domestic hot water in the building up to the installation location of the indoor unit. Compress 3400i AWS – 6721852066 (2023/01)

  • Page 9: Considerations For Assembling The Indoor Unit

    Risk of personal injury and damage to property OR-S Using the incorrect sensors may lead to personal injury such as scalding as well as damage to property due to an excessively high or low Compress 3400i AWS – 6721852066 (2023/01)

  • Page 10: Transport And Storage

    14.Put the heating system into operation. Use the control unit to make the necessary settings ( instructions for control unit). 15.Check that all sensors display the appropriate values. 16.Check and clean the particle filter. Compress 3400i AWS – 6721852066 (2023/01)

  • Page 11: Assembling The Drip Tray

    ▶ Use the drip tray screws to fix the drip tray to the bottom of the indoor unit, screw it on slightly. Do not overtighten as it can damage the drip tray. Observe the following figure for reference: 0010048274-001 Fig. 7 Assemble of the drip tray Compress 3400i AWS – 6721852066 (2023/01)

  • Page 12: Connection

    Flow pipe to heating system Refrigerant in from the outdoor unit (gas) Magnetic filter valve Refrigerant out to the outdoor unit (liquid) Return pipe from heating system Drain of the pressure relief valve and condensates Outdoor unit Compress 3400i AWS – 6721852066 (2023/01)

  • Page 13: Filling The Outdoor Unit, Indoor Unit And Heating

    6. Continue filling until only water comes out of the outlet hose and the indoor unit according to the wiring diagram. bubbles no longer form in the heating system. Where appropriate, take additional measures to vent the heating system. 7. Close the drain valve VC2. Compress 3400i AWS – 6721852066 (2023/01)

  • Page 14: Electrical Connection

    Cable circuit for power circuit cables (230V/400V) Overheating protection (OHP) Relay 1,2 and 3 for electric booster heater When routing the electrical cables in and out of the electrical box, make sure they do not become strained. Compress 3400i AWS – 6721852066 (2023/01)

  • Page 15: Connections To Installer Module Of The Indoor Unit

    The contact on the component or relay that is connected to this input [Buzzer] Alarm buzzer (accessory) must be suitable for 5V and 1mA. [PW2] DHW circulation pump [PK2] Relay output, cooling mode, 230V~ [VW1]DHW 3-way valve [PC1] Heating circulation pump Compress 3400i AWS – 6721852066 (2023/01)

  • Page 16: Can-Bus

    ▶ Use cable with a minimum cross-section of 0.5 mm ▶ In case of external inductive interferences (e.g. from PV systems), use screened cables. Connect only one end of the cable shield to the nearest ground. Compress 3400i AWS – 6721852066 (2023/01)

  • Page 17: Fitting Temperature Sensors

    Functions which are activated via the external inputs are described in the instructions for the control unit. The external input is either connected to a manual switch or a control device with a 5 V relay output. Compress 3400i AWS – 6721852066 (2023/01)

  • Page 18: Terminals For Electrical Connections

    [1] 230V~ 32A, power supply for indoor unit [2] 230V~, controller (EMS modules) accessory [3] 230V~, power supply for heating cable (accessory) Power to the outdoor unit is supplied separately from the distribution board (230V~). Compress 3400i AWS – 6721852066 (2023/01)

  • Page 19: Venting The Indoor Unit

    8. Check the pressure on the pressure gauge GC1 and top up with the fill valve VW2 if needed. The pressure should be 0.3–0.7 bar above the pressure set in the expansion vessel. 9. Check that the heat pump is running and that there are no alarms. Compress 3400i AWS – 6721852066 (2023/01)

  • Page 20: Pressure Switch And Overheating Protection

    ▶ Make sure that there are no current alarms (see instructions for the control unit). -or- ▶ Eliminate any faults according to the control unit instructions. ▶ Check the operating temperatures in accordance with the instructions for the control unit. Compress 3400i AWS – 6721852066 (2023/01)

  • Page 21: Maintenance

    19.Check the pressure at the pressure gauge GC1, if the pressure is less ▶ Screw the cap back on (hand tight). than 2bar top up via the filling valve VW2. ▶ Open the valve (5). Compress 3400i AWS – 6721852066 (2023/01)

  • Page 22: Installation Of Accessories

    ▶ Connect the cable on the installation module to terminal EMS-BUS. If a component is already connected to the EMS terminal, establish the connection in parallel to the same terminal according to fig. 18. 0010012105-002 Fig. 18 EMS connection on the installer module Compress 3400i AWS – 6721852066 (2023/01)

  • Page 23: External Inputs

    2) Time per shower 3) Maximum tap flow 4) Maximum volume of water consumed during a shower for one time period and type of tap flow 5) Optimized cylinder volume to the domestic hot water consumption profile Compress 3400i AWS – 6721852066 (2023/01)

  • Page 24: Dhw Cylinder Temperature Sensor Tw1

    Fig. 20 Connection of the diverter valve VW1 on the installer module Fig. 23 Contact closed, connection A open During domestic hot water heating, the contact is closed and connection A is open. Fig. 21 Molex plug Compress 3400i AWS – 6721852066 (2023/01)

  • Page 25: Dhw Circulation Pump Pw2 (Accessory)

    ▶ Insulate all pipes and connections. ▶ Install the pool module ( Instructions for the pool module). ▶ Set the elapsed time of the swimming pool diverter valve during commissioning ( instructions for control unit). Compress 3400i AWS – 6721852066 (2023/01)

  • Page 26: Connect-Key K 30 Rf

    We use the best possible technology and materials for protecting the environment taking account of economic considerations. A WLAN router, internet connection and the Bosch HomeCom Easy app Packaging are required to use this product.

  • Page 27: Primary Circulation Pump Diagram (Pc0)

    13<35 Electric booster heater Direct system open circuits bypass Electric booster heater Buffer >35 Direct system bypass On/off valves with no Buffer open circuits No open circuits and Serial buffer differential pressure Compress 3400i AWS – 6721852066 (2023/01)

  • Page 28: Explanations Of The System Solutions

    Thermal shut-off valve, heating circuit 2, 3 ... Outdoor sensor Humidity sensor (accessory) DHW cylinder (accessory) Diverter valve (accessory) DHW circulation pump (accessory) Hot water temperature sensor Heating circuit without mixer Circulation pump, heating circuit Flow temperature sensor Compress 3400i AWS – 6721852066 (2023/01)

  • Page 29: Bypass Of The Heating System

    Table 12 Pipe diameter and bypass lengths 0010036802-001 Fig. 31 Bypass Fig. 29 Indoor unit with heating circuit and DHW heating Bypass, straight design Bypass, U-shaped design Bypass Flow pipe diameter Return pipe diameter Compress 3400i AWS – 6721852066 (2023/01)

  • Page 30: System With Integrated Booster Heater, Dhw And Heating Circuit Without Bypass And Mixing Valve

    Fig. 32 Outdoor unit with indoor unit and one heating circuit [1]Installed in the indoor unit. [5] Mounted on the wall. This hydraulic system is only envisaged for heating systems that comply with the requirements of flow, volume and pressure loss. Compress 3400i AWS – 6721852066 (2023/01)

  • Page 31: System With Integrated Booster Heater, Dhw And Heating Circuit With Or Without Mixing Valve And With Bypass

    Fig. 33 Outdoor unit with indoor unit, DHW and one or more heating circuits [1]Installed in the indoor unit [4] Mounted in the station or on the wall [5] Mounted on the wall PC1 and bypass are required in this hydraulic system ( Chapter 11.3.2). Compress 3400i AWS – 6721852066 (2023/01)

  • Page 32: System With Integrated Booster Heater, Buffer, Dhw And Heating Circuit With Or Without Mixing

    Fig. 34 Outdoor unit with indoor unit, buffer and one or more heating circuits [1]Installed in the indoor unit [4] Mounted in the station or on the wall [5] Mounted on the wall PC1 is required in this hydraulic system ( Chapter 11.3.2). Compress 3400i AWS – 6721852066 (2023/01)

  • Page 33: Valve

    Water filter Magnetite separator Water sink Heat meter Air separator Heat. circ. ∏ DHW outlet Automatic air vent valve Underfloor heating circuit Relay Expansion joint Low-loss header Immersion heater Table 13 Hydraulic symbols Compress 3400i AWS – 6721852066 (2023/01)

  • Page 34: Wiring Diagram

    [TC1] Flow temperature sensor (electric booster heater) [VW1]DHW 3-way valve [TC3] Condenser temperature sensor [PC1] Heating circulation pump [I1] External input 1 [PC0] Primary circulation pump [I4] External input 4 [TR3] Refrigerant liquid temperature [MK2]Condensation sensor(s) Compress 3400i AWS – 6721852066 (2023/01)

  • Page 35: Can & Ems Bus

    Outdoor unit terminals Indoor unit Outdoor unit Control unit (user interface) Coding switch setting for A and P encoders (A=0, P=1) Installer module Room controller (accessories) EMS module (accessory) Connect-Key K 30 RF (accessory) Compress 3400i AWS – 6721852066 (2023/01)

  • Page 36: Wiring Diagram For 5.85Kw 230V~ Electric Booster Heater, Cs3400Iaws 4-10 Or-S 230V

    11.4.4 Wiring diagram for 5.85kW 3N ~ electric booster heater, CS3400iAWS 4-10 OR-S 230V~ 230V~ 0-10V~ 0010036830-003 Fig. 38 Wiring diagram 5.85kW 3N~ Distribution board Indoor unit 5.85kW, 400V 3N~ Outdoor unit 230V~ [PC1] Heating circulation pump [T0] Flow temperature sensor [T1] Outdoor temperature sensor Compress 3400i AWS – 6721852066 (2023/01)

  • Page 37: 400V 3N~ Indoor Unit With 230V~ Outdoor Unit

    The output of the electric booster heater must be limited to a maximum of 3.9kW with the configuration in parallel mode with the outdoor unit. • Electric booster heater in compressor mode: 1.95-3.9kW (K3 blocked) • Only electric booster heater, compressor off: 1.95-3.9-5.85kW Compress 3400i AWS – 6721852066 (2023/01)

  • Page 38: Connection Alternative For Ems Bus

    PV connection to external input 1 or 4. The heat pump is able to process a control signal of a PV system. Compress 3400i AWS – 6721852066 (2023/01)

  • Page 39: Cable Scheme

    11900 1696 12488 5331 2490 1256 – 35 111700 9330 1405 10001 4327 2084 1070 – 30 81700 7370 1170 8060 3605 1753 – 25 60400 5870 6536 2989 1480 – 20 45100 4700 Compress 3400i AWS – 6721852066 (2023/01)

  • Page 40: System Commissioning Report

    The heating system has been filled according to the pressure determined in the expansion vessel to ..bar  Yes |  No Has the heating system been flushed before installation?  Yes |  No Has the particle filter been cleaned? Electric connection: Compress 3400i AWS – 6721852066 (2023/01)

  • Page 41: Maintenance Protocol, Refrigerant (Log Book)

    ▶ File completed maintenance protocol for refrigerant in a folder (log following criteria: book) Heat pump type: Serial number: Part number: Appliance index: Refrigerant / fill volume: Table 1 Maintenance protocol, heat pump information Maintenance carried out by: Contractor: Compress 3400i AWS – 6721852066 (2023/01)
  • Page 42 Table 1 Maintenance protocol, refrigerant (log book) Maintenance carried out by: Contractor: Refrigerant type: topped up? Refrigerant charge: recovered? Result of inspection: Next inspection due on: Signature, stamp Table 1 Maintenance protocol, refrigerant (log book) Compress 3400i AWS – 6721852066 (2023/01)
  • Page 43 Table 1 Maintenance protocol, refrigerant (log book) Maintenance carried out by: Contractor: Refrigerant type: topped up? Refrigerant charge: recovered? Result of inspection: Next inspection due on: Signature, stamp Table 1 Maintenance protocol, refrigerant (log book) Compress 3400i AWS – 6721852066 (2023/01)
  • Page 44 Bosch Thermotechnik GmbH GB Importer: Junkersstrasse 20-24 Bosch Thermotechnology Ltd. 73249 Wernau, Germany Cotswold Way, Warndon www.bosch-thermotechnology.com Worcester WR4 9SW, United Kingdom...

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Cs3400iaws 10 e

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