Bosch Compress Hybrid 3400i AW Installation Instructions Manual
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Bosch Compress Hybrid 3400i AW Installation Instructions Manual

Bosch Compress Hybrid 3400i AW Installation Instructions Manual

Indoor unit for air to water heat pumps
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Installation Instructions
Indoor unit for air to water heat pumps
Compress Hybrid 3400i AW
HC3400iAW 8 l
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Summary of Contents for Bosch Compress Hybrid 3400i AW

  • Page 1 Installation Instructions Indoor unit for air to water heat pumps Compress Hybrid 3400i AW HC3400iAW 8 l...

  • Page 2: Table Of Contents

    ........22 Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 3: Explanation Of Symbols And Safety Instructions

    ▶ Before touching live parts: Wait at least 5 minutes to discharge the For operation follow the instructions of the user capacitors. manual. ▶ Observe the wiring diagrams of other system components as well. Table 2 Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 4: Product Description

    Operate the appliance only with mounted and closed casing. 0010029907-004 Fig. 1 Components and pipe connections of the indoor unit Automatic air vent Installer module Relay box Mixing valve DHW circulation pump (heat transfer medium) Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 5: Possible Combinations Of Indoor And Outdoor

    Bottom view of the indoor unit Return to outdoor unit Flow from the outdoor unit Return to external booster heater Flow to heating system Return from the heating system Flow from external booster heater Front of appliance Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 6: Dimensions And Minimum Clearances

    [A] It is recommended to ensure a minimum volume of 1 m³ underneath the indoor unit. If this is not possible, ensure that the room is not air-tight by allowing an air vent passage at a height lower than the bottom of the indoor unit. Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 7: Preparing For Installation

    If this performance degradation can be accepted, the limits in figure 1 are required to ensure the operation of the heat pump throughout its entire service life. Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 8: Install The Particulate Filter

    Table 7 Minimum volume and flow for outdoor unit CS3400iAW 6-8 OR- ▶ Install insulated piping between the outdoor unit and indoor unit, keeping the length of the piping as short as possible. Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 9: Installing The Pressure-Relief Valve

    Table 8 Pipe diameter and bypass lengths Maximum sensor In some countries a high limit safety cut-out is required in underfloor heating circuits. ▶ Observe country-specific regulations. ▶ Establish connection as described in chapter 6. Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 10: Insulating The Hydraulic Pipework

    ▶ Take out enclosed accessories. To detach the cover [2] from the bottom fixing [1]: ▶ Check that all package contents are present. ▶ Pull the cover [2] on the underside slightly forwards. Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 11: Installing The Indoor Unit

    (Chapter 2.6). 0010031291-002 ▶ Hang the indoor unit centrally onto the mounting rail (Fig. 16). Fig. 14 Detach the cover from the top fixing Fixing on the top side Cover of the indoor unit Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 12: Fitting The Cover

    ▶ Pull the sides of the cover [1] slightly apart at the back (paying attention to the top cover) and push the cover backwards. 0010031297-002 Fig. 18 Attach the cover to the top fixing Fixing on the top side Cover of the indoor unit Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 13: Connecting The Indoor Unit To The Outdoor Unit

    ▶ Do not leave pipe parts and connections directly on the ground. ▶ When deburring, make sure that no residue remains in the pipe. ▶ Before connecting the heat pump and indoor unit, rinse the pipe system to remove any foreign bodies. Compress Hybrid 3400i AW – 6721861825 (2023/08)
  • Page 14 ▶ Do not solder the piping to the indoor unit. ▶ Use clamp couplings to connect the pipes to the outdoor unit if available. 0010029920-002 Fig. 21 Connecting the indoor unit to the outdoor unit (schematic representation) Refrigerant outlet Refrigerant inlet Compress Hybrid 3400i AW – 6721861825 (2023/08)
  • Page 15 Installation Pump curves [kPa] Q [m Q [l/s] Q [m 0010039375-001 Fig. 22 Pump curves p Pressure [kPa] H Head [m] Q Volumetric flow rate [m P1 Electrical power input [W] Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 16: Connecting The Indoor Unit To The External Booster Heater And Heating System

    Fig. 23 Connection of the indoor unit to the heating system and the booster heater (example representation with bypass and additional heating pump) Particle filter Flow to heating system Return from the heating system Flow to the auxiliary heater Return to the auxiliary heater DHW connection (combi boiler) Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 17: Fitting The Outside Temperature Sensor

    (accessory) is absolutely essential. ▶ Install the dew point monitor on the flow pipe for the heating system (Figure 25). ▶ Electrical connection (Chapter 6.8.5). 6 720 809 156-23.1I Fig. 24 Positioning the outside temperature sensor Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 18: Installation With Swimming Pool

    ( observe instructions for the room thermostat). ▶ Electrical connection (Chapter 6.8.4). 0010031976-001 Fig. 26 Example showing swimming pool installation Swimming pool module Swimming pool [VC1] Swimming pool mixer [HS] Heating system Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 19: Connect-Key K 30 Rf

    ▶ Before working on electrical parts, disconnect all phases of the power supply (fuse/circuit breaker) and lock the isolator switch to prevent unintentional reconnection. A WLAN router, internet connection and the Bosch HomeCom Easy app are required to use this product. WARNING...

  • Page 20: Connecting The Device

    ▶ Make sure the potentiometer setting is correct for hybrid application (P=3 and A=0) as shown in Fig. 30, [1]. If necessary, turn the direction arrow to the corresponding position with a screwdriver. Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 21: Can-Bus

    Alternatively, twisted pair cables approved for outdoor use with a minimum cross-section of 0.75 mm can be used. In doing so, only earth the shielding on one side (indoor unit) and to the casing. Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 22: External Booster Heater (Uncommon In Uk Market)

    Fig. 34 Connection for external booster heater without 230 V alarm output 0010035171-002 Fig. 32 Terminal on the relay box Relay box External booster heater control cable terminal (volt free) Strain relief External booster heater control cable Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 23: Solenoid Valve For External Auxiliary Heater With Volume Control

    35. ▶ Use wire ferrules to ensure that the individual wires remain in the clamping points. 0010012105-002 Fig. 35 EMS BUS connection on the installer module Compress Hybrid 3400i AW – 6721861825 (2023/08)
  • Page 24 Fig. 36 Connection alternative for EMS bus Star configuration and connection in series with external junction Star configuration Serial connection Installation circuit board Accessory modules (room temperature-dependent controller, heating circuit module and solar module) Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 25: Connect The Flow Temperature Sensor

    ▶ Connect the extension cable to the cable of the temperature sensor using a connection terminal (Fig. 38). 0010036206-001 Fig. 37 Remove the flow temperature sensor with cable Flow temperature sensor with cable Plug on the T0 connection Clip on the flow pipe Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 26: Connecting The Heating Circuit Module

    If an accessory is already connected at the EMS connection: ▶ Connect the room thermostat at the connection EMS parallel to the accessory which is already installed ( Chapter 6.8.1 on page 23). Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 27: External Connections

    ▶ With radiators: set a temperature difference of 8 K. These settings are optimal for the heat pump. Check the temperature differential at high compressor heating output: ▶ Open the diagnosis menu. ▶ Select Monitored values. ▶ Select Heat pump. Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 28: Settings

    If no control element is actuated, the lighting turns off automatically (after approx. 30 s with the standard display, after approx. 30 min in the menu, after 24 h in the event of a fault). Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 29: Faults

    Table 10 Symbols in the display Faults You can find an overview of the faults that can appear on the display on our Internet page, which can be found at the address on the back of these instructions. Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 30: General Commissioning Of The User Interface

    2) Only available if Germany is set as country. Table 12 Settings in the auxiliary heater data menu 1) The buffer cylider option is not available for Air/Water indoor units with integrated buffer cylinder (AWMB). Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 31: Cooling Mode

    ▶ During the annual inspection, check the correct function of all ▶ Restore the power supply to the indoor and outdoor unit. regulating, control and safety equipment and, where applicable, for correct settings. Function test ▶ Carry out function check ( Chap. 7.3). Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 32: Replacing The Temperature Sensor

    ▶ Do not swap the temperature sensor round (Chapter 9.2). ▶ Establish electrical connection correctly (Chapter 12.4). 1. 1. 1. 2. 2. 2. 0010031771-001 Fig. 42 Remove locking plate Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 33: Environmental Protection And Disposal

    Data Protection Officer, Information Security and Privacy (C/ISP), of with other waste, and instead must be taken to the waste Robert Bosch GmbH, Postfach 30 02 20, 70442 Stuttgart, GERMANY. collection points for treatment, collection, recycling and You have the right to object, on grounds relating to your particular disposal.

  • Page 34: Appendix

    3) If the minimum flow rate in the system cannot be ensured, a buffer cylinder is essential. 4) If cooling is available. 5) External auxiliary heater must be connected. Table 13 Technical data Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 35: Hydraulic Diagram Of The Indoor Unit

    Pressure sensor hot gas refrigerant inlet plate heat exchanger TC0 return temperature sensor [10] Temperature sensor liquid refrigerant outlet plate heat exchanger [11] PC0 heating circuit recirculation pump [12] Particulate filter (filter shut-off valve; accessory) [13] Outdoor Unit [14] Heating installation Compress Hybrid 3400i AW – 6721861825 (2023/08)
  • Page 36 Install flange heating in the DHW cylinder in the following situation: purposes. When a freshwater station is installed, it must have its own control. Compress Hybrid 3400i AW – 6721861825 (2023/08)
  • Page 37 Fig. 46 Hydraulic diagram of a system (1 heating circuit, with bypass and heating pump), with bypass and heating pump; example) External booster heater Indoor Unit Outdoor Unit Additional heating pump Bypass (Chapter 4.6, page 9) Compress Hybrid 3400i AW – 6721861825 (2023/08)
  • Page 38 Fig. 47 Hydraulic diagram of a system (2 heating circuits, with bypass and heating pump; example) External booster heater Indoor Unit Outdoor Unit Additional heating pump (heating circuit 1) Bypass (Chapter 4.6, page 9) Heating pump (heating circuit 2) Mixing valve (heating circuit 2) Compress Hybrid 3400i AW – 6721861825 (2023/08)
  • Page 39 Appendix 400 / 230 V AC 0010036179-003 Fig. 48 Hydraulic diagram of a system (2 heating circuits, with cylinder; example) External booster heater Indoor Unit Outdoor Unit Buffer cylinder Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 40: Installer Module

    [TC3] Condenser temperature sensor [I1] External input 1 [I4] External input 4 [TR3] Refrigerant liquid temperature [MD1]Condensation sensor(s) [Buzzer] Alarm buzzer (accessory) [EM0] Request for external auxiliary heater (on/off) [PC0 PWM]PWM signal, primary circulation pump Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 41: System Commissioning Report

     Yes |  No Is the phase sequence of L1, L2, L3, N and PE in the indoor unit correct?  Yes |  No Does the power supply correspond to the installation instructions? Compress Hybrid 3400i AW – 6721861825 (2023/08)
  • Page 42  Yes |  No Has the commissioning been performed correctly?  Yes |  No Does the installer have to perform additional measures? Comments: Installer signature: Customer or installer signature: Table 15 System Commissioning Report Compress Hybrid 3400i AW – 6721861825 (2023/08)

  • Page 43: Error Codes On The Display

    5810 Info Compressor Hardware current sensor false Check power supply lines. If no problem is detected, replace current sensor reading. compressor Driver. fault Table 16 Compress Hybrid 3400i AW – 6721861825 (2023/08)
  • Page 44 Bosch Thermotechnik GmbH GB Importer: Junkersstrasse 20-24 Bosch Thermotechnology Ltd. 73249 Wernau, Germany Cotswold Way, Warndon www.bosch-homecomfortgroup.com Worcester WR4 9SW, United Kingdom...

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