Rotex RHBH04CB3V Installer's Reference Manual

Hpsu low temperature bi-bloc
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Installer reference guide
ROTEX HPSU low temperature Bi‑bloc
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Installer reference guide
RRLQ004-006-008CA
English
ROTEX HPSU low temperature Bi‑bloc
RHBH/X04+08CB

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  • Page 1 Installer reference guide ROTEX HPSU low temperature Bi‑bloc Installer reference guide RRLQ004-006-008CA English ROTEX HPSU low temperature Bi‑bloc RHBH/X04+08CB...
  • Page 2: Table Of Contents

    About connecting the electrical wiring......39 6.2.2 Additional installation site requirements of the 7.9.2 About electrical compliance ......... 39 outdoor unit in cold climates ........23 Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 3: General Safety Precautions

    Checklist for yearly maintenance of the outdoor unit ....77 11.4 Checklist for yearly maintenance of the indoor unit....77 WARNING Indicates a situation that could result in death or serious 12 Troubleshooting injury. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 4: For The Installer

    ▪ In places where there is machinery that emits electromagnetic comply with applicable legislation (on top of the waves. Electromagnetic waves may disturb the control system, instructions described in the ROTEX documentation). and cause malfunction of the equipment. CAUTION ▪ In places where there is a risk of fire due to the leakage of...
  • Page 5: Brine

    If NOT factory installed, a main switch or other means for disconnection, having a contact separation in all poles providing full disconnection under overvoltage category  III condition, MUST be installed in the fixed wiring. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 6: About The Documentation

    ▪ Preparation of the installation, good practices, reference data,… ▪ Format: Digital files on the ROTEX homepage NOTICE ▪ Addendum book for optional equipment: Precautions when laying power wiring: ▪...
  • Page 7: About The Box

    2 Remove the accessories at the bottom of the package. 1× 1× 1× 2× Outdoor unit installation manual Fluorinated greenhouse gases label Multilingual fluorinated greenhouse gases label Unit mounting plate RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 8: Indoor Unit

    Top plate of indoor unit 1 Remove the tape. About the units and options Overview: About the units and options This chapter contains information about: Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 9: Identification

    ▪ RKRUCBL4 contains following languages: English, Turkish, Wall-mounted indoor unit Polish, Romanian. H=Heating only ▪ RKRUCBL5 contains following languages: German, Czech, Slovenian, Slovakian. X=Heating/cooling Capacity class RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 10: Possible Combinations Of Indoor Unit And Outdoor Unit

    RHBX08CB9W — Application guidelines Overview: Application guidelines The purpose of the application guidelines is to give a glance of the possibilities of the ROTEX heat pump system. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 11: Setting Up The Space Heating/Cooling System

    (modulation). This results in: ▪ How many rooms are heated or cooled by the ROTEX heat pump system? ▪ Stable room temperature matching the desired temperature (higher comfort) ▪...
  • Page 12 ▪ Efficiency. Optimal energy efficiency because of the interlink Benefits function. ▪ Wireless. The ROTEX external room thermostat is available in a ▪ Stylish. wireless version. Combination: Under floor heating + Heat pump ▪ Efficiency. Although the external room thermostat only sends ON/ convectors OFF signals, it is specifically designed for the heat pump system.
  • Page 13: Multiple Rooms - One Lwt Zone

    INFORMATION Benefits Mind situations where the main room can be heated by another heating source. Example: Fireplaces. Compared with under floor heating or radiators for one room: RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 14: Multiple Rooms - Two Lwt Zones

    ▪ Main zone = Zone with the lowest design temperature in heating, and the highest design temperature in cooling ▪ Additional zone = The other zone Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 15 ▪ The room temperature is controlled by the user interface, which the different heat emitters. is used as room thermostat. ▪ Under  floor heating has the best performance with ROTEX HPSU. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc...
  • Page 16: Setting Up An Auxiliary Heat Source For Space Heating

    Under floor heating NOTICE ▪ Make sure the auxiliary boiler and its integration in the system complies with applicable legislation. ▪ ROTEX is NOT responsible for incorrect or unsafe situations in the auxiliary boiler system. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc...
  • Page 17: Setting Up The Domestic Hot Water Tank

    40°C. However, you can set the DHW tank Boiler Boiler temperature at a higher temperature (example: 53°C), which is then mixed with cold water (example: 15°C). RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 18: Setup And Configuration - Dhw Tank

    "8 Configuration" on page 45. ROTEX recommends to heat up the DHW tank during the day. ▪ Connecting the electrical wiring of the standalone DHW tank to ▪ If energy prices are lower during the night, ROTEX the indoor unit, see the installation manual of the DHW tank.
  • Page 19: Dhw Pump For Disinfection

    *3V or ▪ The power consumption of the booster heater (if applicable) in *9W connected to a single- the domestic hot water tank phase grid) RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 20: Preferential Kwh Rate Power Supply

    DHW and optional booster heater). production. Setup ▪ Connect power meter 1 to X5M/7 and X5M/8. ▪ Connect power meter 2 to X5M/9 and X5M/10. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 21: Power Limitation Activated By Digital Inputs

    Therefore, the electrical heaters are limited and turned OFF first. The system limits power consumption in the following order: The power or current of the entire ROTEX system is limited dynamically by digital inputs (maximum four steps). Each power Limits certain electrical heaters.
  • Page 22: Setting Up An External Temperature Sensor

    ▪ That is NOT exposed to direct sunlight NOTICE ▪ If this is NOT possible, ROTEX recommends to connect a remote ▪ Do NOT stack the units on each other. outdoor sensor (option EKRSCA1).
  • Page 23: Additional Installation Site Requirements Of The Outdoor Unit In Cold Climates

    ▪ Mind the following spacing installation guidelines: of the outdoor unit in cold climates Protect the outdoor unit against direct snowfall and take care that the outdoor unit is NEVER snowed up. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 24: Preparing Refrigerant Piping

    ▪ with a heat transfer rate between 0.041 and 0.052 W/mK (0.035 operation and 0.045 kcal/mh°C) 04+08 models 12 l/min ▪ with a heat resistance of at least 120°C Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 25: Formula To Calculate The Expansion Vessel Pre-Pressure

    NOT tightened too much, so that automatic release of air in the ▪ You must check the minimum and maximum water volume. water circuit is possible. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 26: Changing The Pre-Pressure Of The Expansion Vessel

    Changing the pre-pressure of the expansion vessel should be done by releasing or increasing nitrogen pressure through the Schrader valve of the expansion vessel. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 27: To Check The Water Volume: Examples

    ▪ Do NOT install a phase advancing capacitor, because this unit is equipped with an inverter. A phase advancing capacitor will reduce performance and may cause accidents. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 28: Overview Of Electrical Connections Except External Actuators

    Backup heater More technical specifications of the different connections Indoor unit are indicated on the inside of the indoor unit. Domestic hot water tank Booster heater Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 29: Overview: Installation

    7.3.2 Precautions when mounting the outdoor unit INFORMATION 1× Also read the precautions and requirements in the following chapters: ▪ General safety precautions ▪ Preparation RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 30: To Provide The Installation Structure

    If the unit is installed on brackets to the wall, it is recommended to CAUTION use the EKFT008CA option kit and to install the unit as follows: Do NOT remove the protective cardboard before the unit is installed properly. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 31: To Provide Drainage

    (see the following illustration). NOTICE If the drain holes of the outdoor unit are blocked up, provide space of at least 300 mm below the outdoor unit. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 32: Mounting The Indoor Unit

    Do NOT grasp the piping to lift the indoor unit. inserted screws. 1 Lift the unit from the package. 6 Hook the unit against the wall. 2× 60kg 2× 7 Assemble the unit. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 33: To Install The Drain Pan Kit

    ▪ Coat the flare inner surface with ether oil or ester oil when connecting a flare nut. Tighten 3 or 4 turns by hand, before ▪ Brazing tightening firmly. ▪ Using the stop valves RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 34: Pipe Bending Guidelines

    Do NOT place 0~0.5 mm 1.0~1.5 mm 1.5~2.0 mm the spanner on the stem cap, as this could cause a refrigerant leak. 5 Check that the flaring is properly made. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 35: To Connect The Refrigerant Piping To The Outdoor Unit

    Make sure the refrigerant piping is connected between the outdoor unit and the indoor unit. 1 Connect the liquid refrigerant connection from the indoor unit to the liquid stop valve of the outdoor unit. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 36: Precautions When Checking The Refrigerant Piping

    7.6.4 To perform vacuum drying Completely recharging refrigerant Example: Connect the vacuum pump and manifold as follows: ▪ When relocating the system. ▪ After a leak. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 37: Precautions When Charging Refrigerant

    Piping length is the one way length of liquid piping. 2 Fix the label on the inside of the outdoor unit near the gas and liquid stop valves. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 38: Connecting The Water Piping

    For installation instructions, see the installation manual of the NOTICE domestic hot water tank. Install air purge valves at all local high points. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 39: To Insulate The Water Piping

    Excessive strip length may cause electrical shock or wiring leakage. Keep the following in mind: 4 Open the wire clamp. 5 Connect the interconnection cable and power supply as follows: RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 40: To Connect The Electrical Wiring On The Indoor Unit

    In case of normal kWh rate power supply CAUTION Do NOT push or place redundant cable length in the unit. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 41: To Connect The Backup Heater Power Supply

    (X5M/3+4) as the safety thermostat. It is only possible for the system to have EITHER preferential kWh rate power supply OR a safety thermostat. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 42: To Connect The User Interface

    ▪ If you use 2 user interfaces, you can install 1 user interface at the indoor unit (for control close to the indoor unit) + 1 user interface in the room (used as room thermostat). Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 43: To Connect The Shut-Off Valve

    X5M/7 and X5M/9; the negative polarity to X5M/8 and X5M/10. 1 Connect the electrical meters cable to the appropriate terminals as shown in the illustration below. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 44: To Connect The Domestic Hot Water Pump

    To connect the safety thermostat (normal closed contact) 1 Connect the safety thermostat (normal closed) cable to the appropriate terminals as shown in the illustration below. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 45: Finishing The Outdoor Unit Installation

    To close the outdoor unit Afterwards. If necessary, you can make changes to the configuration afterwards. 1 Close the switch box cover. 2 Close the service cover. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 46: To Connect The Pc Cable To The Switch Box

    1 Set the user permission level to Installer. 5 Repeat previous steps if you have to modify other settings. 2 Go to [A]: > Installer settings. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 47: To Copy The System Settings From The First To The Second User Interface

    Confirm Adjust Scroll 6 The user interface requests confirmation if you are sure to proceed. Time What is the current time? : 00 Confirm Adjust Scroll RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 48: Basic Configuration

    The system can heat up or cool down a space. Depending on the type of application, the space heating/cooling settings must be made accordingly. ▪ a: Main LWT zone continued >> Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 49: Quick Wizard: Options

    This chapter only applies to systems with a domestic hot water tank installed: ▪ RHBH/X: an optional domestic hot water tank is available, ▪ RHVH/X: a domestic hot water tank is standard incorporated into the indoor unit. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 50 Non‑return valve (field supply) Shower (field supply) Cold water INFORMATION The correct domestic hot water default settings becomes only applicable when domestic hot water operation is activated ([E‑05]=1). Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 51 ▪ 0 (No): NOT installed ▪ 1: Installed (0.1 pulse/kWh) ▪ 2: Installed (1 pulse/kWh) ▪ 3: Installed (10 pulse/kWh) ▪ 4: Installed (100 pulse/kWh) ▪ 5: Installed (1000 pulse/kWh) RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 52: Quick Wizard: Capacities (Energy Metering)

    See the user reference guide and/or operation manual for more [1-03] details about this function. [1-00] [1-01] ▪ T : Target leaving water temperature (main) ▪ T : Outdoor temperature continued >> Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 53 ▪ according schedule. scheduled actions are On or OFF. Remark: This value can only be set in leaving water temperature control. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 54 This results in: ▪ stable room temperatures exactly matching desired temperature (higher comfort level) ▪ less On/OFF cycles (lower noise level, higher comfort and higher efficiency) Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 55: Domestic Hot Water Control

    Therefore it is important to set this correctly. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 56: Contact/Helpdesk Number

    (= the leaving water temperature zone with the [7.4.2.3] [8-07] Comfort (cooling) lowest leaving water temperature in heating operation and the highest leaving water temperature in cooling operation) [9‑03]°C~[9‑02]°C (default: 18°C) Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 57 ONLY applicable in room thermostat control and when the R=4°C (−2°C<T <2°C) temperature is displayed in °C. ▪ 3 (enabled) L=2°C, R=8°C (−4°C<T <4°C) ▪ 4 (enabled) L=4°C, R=8°C (−4°C<T <4°C) RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 58 Room frost protection is NOT control ([C‑07]=0) guaranteed. NOTICE If the system does NOT contain a backup heater, do NOT change the default room antifrost temperature. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 59 Space cooling On temp: ONLY applicable for RHBX and RHVX. When the averaged outdoor temperature drops below this value, space cooling is turned OFF. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 60: Domestic Hot Water Control: Advanced

    Range: 10°C~35°C (default: 20°C) [6‑0C] or the weather dependent setpoint, minus the reheat hysteresis. If the tank temperature drops below this value, the tank is heated up. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 61 In reheat mode, desired tank temperature weather dependent. Note: When displayed tank temperature is weather dependent, it cannot be adjusted on the user interface. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 62 Range: 2°C~20°C (default: 2°C) [6-01] The temperature difference determining the heat pump OFF temperature. Range: 0°C~10°C (default: 2°C) Example: setpoint (T )>maximum heat pump temperature–[6‑01] –[6‑01]) HP MAX Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 63 Range: 20~95 minutes (default: 50). [8-04] Additional running time for the maximum running time depending on the outdoor temperature [4-02] or [F-01]. Range: 0~95 minutes (default: 95). [8-02]: Anti-recycling time RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 64 Be sure that the disinfection function start time [A.4.4.3] the installer according to the applicable legislation. with defined duration [A.4.4.5] is NOT interrupted by possible domestic hot water demand. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 65: Heat Source Settings

    Only for systems with integrated domestic hot water tank: If temperature within the duration time. the storage temperature set point is higher than 50°C, ROTEX recommends NOT to disable the backup heater INFORMATION second step because it will have a big impact on the...
  • Page 66 Make sure to observe all rules mentioned in application 1°C) guideline 5 when bivalent operation function is enabled. ROTEX shall NOT be held liable for any damage resulting Possibility 2 from failure to observe this rule. The installer can set a temperature range ([C‑04]). Depending on the energy prices, a calculated point T changes between this range.
  • Page 67: System Settings

    Code Description Range: –15°C~35°C (default: 0°C). [A.6.1] [3‑00] Is the auto restart function of the unit allowed? ▪ 0: No ▪ 1 (default): Yes RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 68 0 (default) Forced OFF Forced OFF Forced OFF Permitted 3× Forced OFF Permitted Permitted 1 2 3 Only for RHVH/X: Do NOT use 1 or 3. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 69 See 0 kW~20 kW, step: 0.5 kW (default: "5.7  Setting up an external temperature sensor"  on 20 kW) page 22. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 70 This functionality is only valid in specific conditions where it is preferable to keep the pump active when <4°C (pump will be activated for 10 minutes and deactivated after 10 minutes). ROTEX shall NOT be held liable for any damage resulting this functionality. b (l/min)
  • Page 71: Menu Structure: Overview User Settings

    Additional Set weather-dependent heating Set weather-dependent cooling [7.7.2] Additional Set weather-dependent heating Set weather-dependent cooling INFORMATION Depending on the selected installer settings, settings will be visible/invisible. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 72: Menu Structure: Overview Installer Settings

    Solar kit settings are shown but are NOT applicable for this unit. Settings shall NOT be used or changed. INFORMATION Depending on the selected installer settings, settings will be visible/invisible. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 73: Commissioning

    (only applicable in case of hybrid system) The underfloor screed dryout function is started (if The system is properly earthed and the earth terminals necessary). are tightened. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 74: To Check The Minimum Flow Rate

    Make sure that the leaving water temperature home page, room 1 Press and press to confirm the interruption of the air temperature home page, and domestic hot water home page are purge function. turned OFF. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 75: To Perform A Test Run

    Make sure that all air is purged before executing the test run. Also avoid disturbances in the water circuit during the test run. ▪ 2-way valve test ▪ 3-way valve test RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 76: 10 Hand-Over To The User

    > Installer settings > Commissioning > UFH ▪ Show the user what to do in relation to maintaining the unit. screed dryout. 2 Set a dryout program. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 77: 11 Maintenance And Service

    ▪ Carry out a thorough visual inspection of the switch box and look for obvious defects such as loose connections or defective wiring. ▪ Water filter ▪ Water pressure relief valve RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 78: 12 Troubleshooting

    NOT activated. ▪ The backup heater contactors are NOT broken. If the problem persists after you have conducted all of the above checks, contact your dealer. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 79: Symptom: The Pump Is Making Noise (Cavitation)

    There is air in the system. Purge air manually or head is 10 m. automatically. See the air purge Check the installation function in the "Commissioning" requirements. chapter. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 80: Symptom: The Pressure At The Tapping Point Is Temporarily Unusually High

    OU: Voltage/current sensor the disinfection function to problem. preheat the tank. Please contact your dealer. OU: Malfunction of high pressure switch (HPS) Please contact your dealer. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 81 Please contact your dealer. (thermostat). OU: Transmission malfunction between main CPU- INV CPU. Zero cross detection problem. Please contact your dealer. Power reset required. Please contact your dealer. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 82 The water flow problems mainly occurred during space heating operation. Check the space Please contact your dealer. heating circuit. Indoor unit, outdoor unit matching problem. Power reset required. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 83: Disposal

    Pump down operation will extract all refrigerant from the system into the outdoor unit. 1 Remove the valve lid from the liquid stop valve and the gas stop valve. 2 Carry out the forced cooling operation. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 84: 14 Technical Data

    (6.4 CuT) 6.4CuT LIQUID STOP VALVE MUFFLER MUFFLER 12.7CuT FIELD PIPING 7.9CuT (15.9 CuT) GAS STOP VALVE DISCHARGE PIPE WITH SERVICE PORT THERMISTOR ACCUMULATOR COMPRESSOR 3TW60815-1 Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 85: Piping Diagram: Indoor Unit

    Refrigerant liquid side thermistor Outlet water backup heater thermistor Flare connection Quick coupling Outlet water heat exchanger thermistor Spinned pipe Flange connection Pinched pipe Brazed connection 3D088485 RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 86: Wiring Diagram: Outdoor Unit

     Domestic hot water tank  Domestic hot water tank Several wiring possibilities  Domestic hot water tank with  Domestic hot water tank with solar connection solar connection Option Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 87 Domestic hot water pump (2) Backup heater power supply (2) Backup heater power supply 2-way valve for cooling mode Only for *** Only for *** RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 88 Only for heat pump convector Only for heat pump convector Alarm output Alarm output Only for wired thermostat Only for wired thermostat Only for wireless thermostat Only for wireless thermostat Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 89: Power Supply

    Standard part 2 core 2x0.75 A2P: P1-P2 user interface X5M: 1-2 communication Optional part Only for *KRUCBL* 2 core 2x0.75 communication A2P: P1-P2 user interface 4D090420 A RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 90: Drain Pan Necessity

    Dry bulb temperature [°C] 1. Refer to psychometric chart for more information. 2. If condensation is expected, installation of EKHBDPCA2 - drainpan kit must be considered. 4D078990 Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1C – 2017.04...
  • Page 91: Esp Curve: Indoor Unit

    Optional equipment Equipment made or approved by ROTEX that can be combined with the product according to the instructions in the accompanying documentation. Field supply Equipment not made by ROTEX that can be combined with product according instructions accompanying documentation.
  • Page 92 ID66F2 Field settings table [6.8.2] = ..Applicable indoor units *HBH04CB3V *HVH04S18CB3V *HBH08CB3V *HVH08S18CB3V *HBH11CB3V *HVH11S18CB3V *HBH16CB3V *HVH16S18CB3V *HBX04CB3V *HVX04S18CB3V *HBX08CB3V *HVX08S18CB3V *HBX11CB3V *HVX11S18CB3V *HBX16CB3V *HVX16S18CB3V *HBH08CB9W *HVH08S26CB9W *HBH11CB9W *HVH11S26CB9W *HBH16CB9W *HVH16S26CB9W *HBX08CB9W *HVX08S26CB9W *HBX11CB9W *HVX11S26CB9W *HBX16CB9W *HVX16S26CB9W Notes (*1) *HB* (*2) *HV* (*3) *3V (*4) *9W...
  • Page 93 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Value Default value User settings └─ Preset values └─ Room temperature 7.4.1.1 Comfort (heating) [3-07]~[3-06], step: A.3.2.4 21°C 7.4.1.2 Eco (heating) [3-07]~[3-06], step: A.3.2.4 19°C 7.4.1.3 Comfort (cooling)
  • Page 94 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Value Default value A.2.1.5 [5-0D] BUH type 0: 1P,(1/2) 1: 1P,(1/1+2) (*3) 2: 3P,(1/2) 3: 3P,(1/1+2) 4: 3PN,(1/2) 5: 3PN,(1/1+2) (*4) A.2.1.6 [D-01] Forced off contact 0: No...
  • Page 95 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Value Default value A.3.1.2.2.1 [9-05] Temperature range Minimum temp (heating) 15~37°C, step: 1°C 25°C A.3.1.2.2.2 [9-06] Temperature range Maximum temp (heating) 37~depending on outdoor unit, step: 1°C 55°C A.3.1.2.2.3 [9-07]...
  • Page 96 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Value Default value A.6.3.2 [4-09] Type 0: Current 1: Power A.6.3.3 [5-05] Amp. value 0~50 A, step: 1 A 50 A A.6.3.4 [5-09] kW value 0~20 kW, step: 0,5 kW...
  • Page 97 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Value Default value [2-02] When should the disinfection function start? 0~23 hour, step: 1 hour [2-03] What is the disinfection target temperature? [E-07]≠...
  • Page 98 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Value Default value [6-02] What is the capacity of the booster heater? 0~10kW, step: 0,2kW 3kW (*1) 0kW (*2) [6-03] What is the capacity of the backup heater step 1? 0~10kW, step: 0,2kW [6-04] What is the capacity of the backup heater step 2?
  • Page 99 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Value Default value [A-02] 0 (*5) 1 (*6) [A-03] [A-04] [B-00] [B-01] [B-02] [B-03] [B-04] [C-00] Domestic heating water priority. 0: Solar priority 1: Heat pump priority [C-01] [C-02]...
  • Page 100 Field settings table Installer setting at variance with default value Breadcrumb Field code Setting name Range, step Date Value Default value [E-09] [E-0A] [E-0B] [E-0C] [E-0D] [F-00] Pump operation allowed outside range. 0: Disabled 1: Enabled [F-01] Above which outdoor temperature is cooling allowed? 10~35°C, step: 1°C 20°C [F-02]...
  • Page 104 Unsere Partner im Ausland Our partners abroad • Unsere Partner im Ausland Nos partenaires à l’étranger • Le nostre sedi all'estero Neustros representantes en el extranjero Nasi partnerzy za granicą • Naši partneři v zahraničí http://de.rotex-heating.com > ueber-rotex > international 4P384979-1C 2017.04...

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