Bosch Compress 7400i AW 5 OR Installer's Manual

Air to water heat pump

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Installer Guide
Air to water heat pump
Compress 7400i AW
5 OR | 7 OR

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Summary of Contents for Bosch Compress 7400i AW 5 OR

  • Page 1 Installer Guide Air to water heat pump Compress 7400i AW 5 OR | 7 OR...
  • Page 2: Table Of Contents

    Table of contents Table of contents Explanation of symbols and safety instructions Explanation of symbols Explanation of symbols and safety instructions ... 2 Explanation of symbols ......2 Warnings General safety instructions .
  • Page 3: Regulations

    Regulations ▶ Use only original spare parts. Preventive actions are required if the heating systems require recurrent filling or where a heating water sample does not show clear water. H Electrical work Preventive actions can be to supplement the heating system with a Electrical work may only be performed by authorised magnetite filter and a de-airing valve.
  • Page 4 Regulations Heat pump Total alkalinity Maximum fill and top-up water output [kW] / total hardness volume V of the filling water [°dh] Q < 50 Requirements Requirements according to according to figure 1 figure 1 Table 4 Table for heat pumps V [m 2,60 2,40...
  • Page 5: Product Description

    EU legislation, which is stipulated by attaching this marking. The complete text of the Declaration of Conformity is available on the Internet: www.bosch.ie. Type plate The data plate is located on the rear side of the heat pump. It contains information on the output, part number and serial number and also the date of manufacture.
  • Page 6: Product Overview

    Product description Product overview Dimensions 3.5.1 Dimensions of heat pump models 5 OR, 7 OR Fig. 3 Product overview Electronic expansion valve VR1 Electronic expansion valve VR0 Four-way valve Fig. 4 Dimensions and connections of heat pump models 5 OR-7 OR, Pressure switch/pressure sensor rear compressor...
  • Page 7: Clearances During Setup

    Preparing for installation Clearances during setup 1200 1200 2000 2000 2000 2000 2000 2000 800) 500) Fig. 6 Clearances during setup The clearance can be reduced on one side. This may however lead ▶ With a freestanding installation (not near the building): to a higher noise level.
  • Page 8: Minimum Volume And Execution Of The Heating System

    Installation areas can lead to the auxiliary heater being activated in the final phase of the defrosting process. • ≥ 6 m floor area required for heat pump 5 OR – 7 OR. To ensure maximum energy savings and avoid auxiliary heater operation, the following configuration is recommended: •...
  • Page 9: Transport Fitting

    Installation 5.1.1 Transport fitting Mounting method The heat pump is equipped with a transport fitting (screw) which is 5.4.1 Assembly of the heat pump clearly identified by a red marking. The transport fitting prevents the heat pump from being damaged in transit. Unscrew transport fitting. CAUTION Risk of trapping or injury! The heat pump may tilt if it is not fixed correctly.
  • Page 10: Connection Of Heat Pump To The Indoor Unit

    Installation Fig. 13 Connections of heat carrying medium pipes, valid for all sizes Heat transfer medium outlet (to the indoor unit) DN25 Fig. 12 Condensate tube connections, valid for all sizes Heat transfer medium inlet (from the indoor unit) DN25 Condensate line in rainwater gully 5.5.3 Electrical connection...
  • Page 11 Installation A LIYCY cable (TP) 2 x 2 x 0.75 (or equivalent) is suitable as an Connecting the heat pump extension cable outside of the unit. Alternatively, twisted pair cables approved for outdoor use with a minimum cross-section of 0.75 mm can be used.
  • Page 12: Installing Side Panels And Cover

    Installation Installing side panels and cover CAUTION Risk of injury! There is a risk of hand injury if the fan is uncovered. ▶ The unit may not be commissioned without the front plate. 0010029644-001 Fig. 16 Installing side panels and cover Compress 7400i AW –...
  • Page 13 Installation 0010029645-001 Fig. 17 Installing side panels and cover Compress 7400i AW – 6721840487 (2021/10)
  • Page 14: Maintenance

    Maintenance NOTICE Maintenance Deformation due to heat! DANGER If the temperature is too high, the insulation material (EPP) in the heat Electrical shock! pump deforms. The heat pump contains current-carrying components and the heat ▶ Remove as much insulation (EPP) as possible before carrying out pump capacitor must be discharged once the power supply has been soldering work.
  • Page 15 Installation of accessories Compress 7400i AW – 6721840487 (2021/10)
  • Page 16: Environmental Protection And Disposal

    You can find more information here: Environmental protection is one of the fundamental company policies of www.weee.bosch-thermotechnology.com/ the Bosch Group. We regard quality of products, economy and environmental protection as equal objectives. Environmental protection laws and regulations are Technical information strictly adhered to.
  • Page 17 Technical information Unit 5 OR 7 OR Heat transfer medium Minimum flow 0.33 0.43 Internal pressure reduction 10.5 Air and noise generation Max. fan motor output (DC transformer) Maximum air current m³/h 3400 3400 Sound pressure level with a clearance of 1 m, load point according to 2013/811/EU dB(A) Sound Power dB(A)
  • Page 18: Operating Range Of Heat Pump Without Auxiliary Heater

    Technical information <3m >3m 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.
  • Page 19: Refrigerant Circuit

    Technical information Refrigerant circuit Fig. 19 Refrigerant circuit [EC1] Heat exchanger (condenser) [EL1] Evaporator [ER1] Compressor [JR0] Low pressure sensor [JR1] High pressure sensor [MR1] High pressure switch [PL3] [TA4] Temperature sensor, drip pan [TC3] Temperature sensor, heat transfer medium outlet [TL2] Temperature sensor, air intake [TR1]...
  • Page 20: Wiring Diagram

    Technical information Wiring diagram 9.4.1 Wiring diagram for transformer, alternating current 0010029641-001 Fig. 20 Wiring diagram for transformer, alternating current / three-phase current [ER1] Compressor [MR1] High pressure switch Inverter Mains voltage 230 V 1N~ Power supply of I/O module MOD-BUS to I/O module Compress 7400i AW –...
  • Page 21: Wiring Diagram For Transformer, 1-/3-Phase

    Technical information 9.4.2 Wiring diagram for transformer, 1-/3-phase Fig. 21 Wiring diagram for I/O module [JR0] Pressure sensor low I/O module [JR1] Pressure sensor high P7=heat pump 5 OR, 1N~ [PL3] Fan, pulse width modulation signal P8=heat pump 7 OR, 1N~ [TA4] Drip tray temperature sensor A0=standard...
  • Page 22: Measurements For Temperature Sensor

    Technical information 9.4.3 Measurements for temperature sensor r.. r... r... °C °C °C – 40 154300 11900 1696 – 35 111700 9330 1405 – 30 81700 7370 1170 – 25 60400 5870 – 20 45100 4700 – 15 33950 3790 –...
  • Page 24 Bosch Thermotechnik GmbH Sophienstrasse 30-32 D-35576 Wetzlar www.buderus.de info@buderus.de C & F Quadrant Ltd. Unit L40 Cherry Orchard Industrial Estate Cherry Orchard, Dublin 10 Tel.: 01.6305700 Fax.: 01.6305706 / 01.6305715 www.cfquadrant.ie E-mail: sales@cfquadrant.ie...

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Compress 7400i aw 7 or

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