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Rotex RRLQ004-006-008CA Installer's Reference Manual

Hpsu low temperature bi‑bloc
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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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Summary of Contents for Rotex RRLQ004-006-008CA

  • 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 4P384979-1 – 2015.01...

  • Page 3: General Safety Precautions

    Checklist for yearly maintenance of the indoor unit....76 12 Troubleshooting DANGER 12.1 Overview: Troubleshooting............77 Indicates a situation that results in death or serious injury. 12.2 Precautions when troubleshooting ..........77 RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 4: General

    (example: thinner or gasoline), carbon fibre, comply with applicable legislation (on top of the ignitable dust. instructions described in the ROTEX documentation). ▪ In places where corrosive gas (example: sulphurous acid gas) is CAUTION produced. Corrosion of copper pipes or soldered parts may cause Wear adequate personal protective equipment (protective the refrigerant to leak.

  • Page 5: Brine

    When the refrigerant charging procedure is done or when pausing, close valve refrigerant tank immediately. If the valve is not closed immediately, remaining pressure might charge additional refrigerant. Possible consequence: Incorrect refrigerant amount. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 6: About The Documentation

    ▪ NEVER squeeze bundled cables and make sure they ▪ Format: Digital files on the ROTEX homepage do not come in contact with the piping and sharp ▪ Addendum book for optional equipment: edges.

  • Page 7: Overview: About The Box

    Multilingual fluorinated greenhouse gases label Unit mounting plate Indoor unit 3.3.1 To unpack the indoor unit 3.2.2 To remove the accessories from the outdoor unit 1 Lift the outdoor unit. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 8: To Remove The Accessories From The Indoor Unit

    2 Tilt the bottom side of the front panel upwards and remove it. When installing or servicing several units at the same time, make sure NOT to switch the service panels between different models. 3 Remove the accessories. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 9: Identification Label: Outdoor Unit

    The drain pan kit consists of: For installation instructions, see the installation manual of the room ▪ Drain pan thermostat and addendum book for optional equipment. ▪ Installation brackets RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 10: Possible Combinations Of Indoor Unit And Outdoor Unit

    NOT shown, and are questions first: the responsibility of the installer. ▪ How many rooms are heated (or cooled) by the ROTEX ▪ For more information about the configuration settings to heat pump system? optimize heat pump operation, see "8 Configuration" on...

  • Page 11: Single Room

    2 (RT control): Unit operation is decided based on the ambient Benefits ▪ #: [A.2.1.7] temperature of the user interface. ▪ Wireless. The ROTEX external room thermostat is available in a ▪ Code: [C-07] wireless version. Number of water temperature 0 (1 LWT zone): Main zones: ▪...

  • Page 12: Multiple Rooms - One Lwt Zone

    Example: If the heat  pump system is used to heat up one floor under floor heating is shut off by the shut-off valve. where all the rooms have the same heat emitters. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...
  • Page 13 ▪ Easy. Same installation as for one room, but with thermostatic valves. Heat pump convectors Setup Main leaving water temperature zone RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 14: Multiple Rooms - Two Lwt Zones

    ▪ For each room with heat  pump convectors: The desired room temperature is set via the remote controller of the heat  pump convectors. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 15: Setting Up An Auxiliary Heat Source For Space Heating

    ▪ The heat pump convectors are directly connected to the indoor the different heat emitters. unit. ▪ Under  floor heating has the best performance with ROTEX ▪ The desired room temperature is set via the remote controller of HPSU. the heat pump convectors for each room.
  • Page 16 ▪ During heating operation of the auxiliary boiler, the ▪ ROTEX is NOT responsible for incorrect or unsafe auxiliary boiler operates to achieve the desired water situations in the auxiliary boiler system. temperature set via the auxiliary boiler controller.

  • Page 17: Setting Up The Domestic Hot Water Tank

    5.4.2 System layout – Standalone DHW tank temperature. However, this consumes more energy. ROTEX Only for RHBH/X. recommends to set the desired DHW tank temperature below 55°C to avoid using the electrical resistance.

  • 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: Setting Up The Energy Metering

    ▪ Setup and configuration: To get accurate energy data, measure the capacity (resistance measurement) and set the capacity via the user interface for: ▪ The backup heater (step 1 and step 2) ▪ The booster heater RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 20: Preferential Kwh Rate Power Supply

    ▪ Connect power meter 2 to X5M/9 and X5M/10. Power meter types ▪ Power meter 1: Single- or three-phase power meter according to the power supply of the outdoor unit. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • 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 detailed information about spacing guidelines. ▪ If this is NOT possible, ROTEX recommends to connect a remote outdoor sensor (option EKRSCA1). NOTICE ▪ Setup: For installation instructions, see the installation manual of ▪...

  • Page 23: Additional Installation Site Requirements Of The Outdoor Unit In Cold Climates

    Also read the precautions and requirements in the Liquid piping Ø6.4 mm (1/4") "General safety precautions" chapter. Gas piping Ø15.9 mm (5/8") ▪ Mind the measurement guidelines: ▪ Piping temper grade and thickness: RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 24: Refrigerant Piping Insulation

    FCU1...3 Fan coil unit (optional) (field supply) (shower, bath,…) and to avoid dead ends. FHL1...3 Floor heating loop (field supply) Room thermostat (optional) (field supply) Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 25: Formula To Calculate The Expansion Vessel Pre-Pressure

    Use the following graph to determine the maximum water volume for the calculated pre-pressure. Recirculation connection Hot water connection Shower Recirculation pump RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 26: Changing The Pre-Pressure Of The Expansion Vessel

    Only a licensed installer may adjust the pre-pressure of the expansion vessel. When changing the default pre-pressure of the expansion vessel (1 bar) is required, take following guidelines into account: Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 27: About Preferential Kwh Rate Power Supply

    Whether the power supply is interrupted or not, the wiring to the unit is different. Single power supply for outdoor unit, backup heater and booster heater Backup heater Indoor unit Domestic hot water tank Booster heater RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 28: Overview: Installation

    500 m. Applicable for both single user interface and dual use interface connection. NOTICE More technical specifications of the different connections 1× are indicated on the inside of the indoor unit. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 29: To Open The Indoor Unit

    Protecting the unit against snow and wind by installing a snow recommended to construct a pedestal, and on this pedestal install cover and baffle plates. See "Preparing installation site" in the EKFT008CA option kit. "6 Preparation" on page 22. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 30: To Install The Outdoor Unit

    Maximum snowfall height EKFT008CA option kit NOTICE The pedestal MUST be aligned with the backside of the U‑beam. 3 Remove the protective cardboard and instruction sheet. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 31: To Provide Drainage

    7.4.1 About mounting the indoor unit U-beams When You have to mount the outdoor and indoor unit before you can connect the refrigerant and water piping. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 32: Precautions When Mounting The Indoor Unit

    5× 3 Put the installation pattern (see packing) on the wall and follow the steps as shown below. 2× 4 Lift the unit. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 33: To Install The Drain Pan Kit

    ▪ NEVER install a drier to this R410A unit to guarantee and leaks. its lifetime. The drying material may dissolve and damage the system. Torque wrench Spanner Piping union Flare nut RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 34: Pipe Bending Guidelines

    ▪ Set the nitrogen pressure to 20 kPa (just enough so it can be felt Silicon sealant, make sure there is no gap. on the skin) with a pressure-reducing valve. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 35: To Connect The Refrigerant Piping To The Outdoor Unit

    If there is a possibility of moisture being present in the refrigerant piping (for example, water may have entered the piping), first carry out the vacuum drying procedure below until all moisture has been removed. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 36: Precautions When Checking The Refrigerant Piping

    Connect the vacuum pump and manifold as follows: ▪ After a leak. Charging additional refrigerant Before charging additional refrigerant, make sure the outdoor unit's external refrigerant piping is checked (leak test, vacuum drying). Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 37: Precautions When Charging Refrigerant

    If a complete recharge is necessary, the total refrigerant Filling the domestic hot water tank. charge is: the factory refrigerant charge (see unit name Insulating the water piping. plate) + the determined additional amount. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 38: Precautions When Connecting The Water Piping

    (higher pressure at higher water temperature). However, at all times water pressure shall remain above 1 bar to avoid air entering the circuit. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 39: To Fill The Domestic Hot Water Tank

    "7.9.8  To connect the backup heater power supply"  on page 41. 7.9.3 Precautions when connecting the electrical wiring INFORMATION 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 4P384979-1 – 2015.01...

  • Page 40: To Connect The Electrical Wiring On The Outdoor Unit

    ▪ User interface ▪ Domestic hot water tank thermistor (option) ▪ Power consumption digital inputs (field supply) ▪ Outdoor ambient temperature sensor (option) ▪ Electrical meters (field supply) Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 41: To Connect The Main Power Supply

    To connect the backup heater power supply CAUTION To guarantee the unit is completely earthed, always connect the backup heater power supply and the earth cable. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...
  • Page 42 During connection of the backup heater, miswiring is possible. To detect possible miswiring, it is highly recommended to measure the resistance value of the heater elements. Depending on the different Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 43: To Connect The User Interface

    The main user interface is required for operation, but has to be ordered separately (mandatory option). 4A From the rear 4B From the left 1× 1× RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 44: To Connect The Shut-Off Valve

    1 Connect the changeover to external heat source cable to the S2S S3S appropriate terminals as shown in the illustration below. 2 Fix the cable with cable ties to the cable tie mountings. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 45: To Connect The Power Consumption Digital Inputs

    2 Close the service cover. you configure the system. Afterwards. If necessary, you can make changes to the configuration afterwards. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • 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 4P384979-1 – 2015.01...

  • 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 4P384979-1 – 2015.01...

  • 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 4P384979-1 – 2015.01...

  • 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 4P384979-1 – 2015.01...
  • 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 4P384979-1 – 2015.01...

  • Page 51: Quick Wizard: Capacities (Energy Metering)

    I/ Range: 0~10 kW (in steps of 0.2 kW) O PCB cannot be used for space heating/cooling output. "5 Application guidelines" on page 10. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 52: Space Heating/Cooling Control

    ▪ fixed in time (i.e., NOT scheduled) ▪ Weather dep.: The desired leaving water temperature is: ▪ weather-dependent (i.e. depends outdoor ambient temperature) ▪ fixed in time (i.e., NOT scheduled) continued >> Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...
  • 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 4P384979-1 – 2015.01...
  • 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 4P384979-1 – 2015.01...

  • 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 4P384979-1 – 2015.01...

  • 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]~[9‑02]°C (default: 18°C) Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...
  • 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 4P384979-1 – 2015.01...
  • 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 4P384979-1 – 2015.01...
  • Page 59 OFF to avoid NOT guaranteed. However, if [2‑06] is set to "1", limited frost overheating. protection by the unit is possible: RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 60: Domestic Hot Water Control: Advanced

    Code Description [7.4.3.1] [6-0A] 30°C~[6‑0E]°C (default: 60°C) Changeover settings related to the outdoor temperature (ONLY when automatic is selected): Storage eco Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...
  • 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 4P384979-1 – 2015.01...
  • Page 62 Range: 5~95 minutes (default: 30) heater is turned OFF. The domestic hot water tank temperature will increase with [7-00] above selected temperature set point. Range: 0°C~4°C (default: 0°C) Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...
  • Page 63 ▪ 0: No Hot water request for heat pump (1=request, 0=no request) Time ▪ 1: Yes [8-03]: Booster heater delay timer [A.4.4.3] [2‑02] Start time: 00~23:00, step: 1:00. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 64: Heat Source Settings

    In this way it is possible to limit the backup heater capacity. [5-00] Is backup heater operation allowed above equilibrium temperature during space heating operation? ▪ 1: NOT allowed ▪ 0: Allowed Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...
  • Page 65 50°C, ROTEX recommends NOT to disable the backup heater ▪ [C‑04] Bivalent hysteresis: defines the temperature difference second step because it will have a big impact on the between bivalent ON temperature and bivalent OFF temperature.

  • Page 66: System Settings

    5 when bivalent operation function is enabled. outdoor temperature when space ROTEX shall NOT be held liable for any damage resulting heating priority is enabled. The from failure to observe this rule. corrected (higher) set point will make...
  • Page 67 Defines whether the outdoor unit power supply can be interrupted (internally by indoor unit control) during stand-still conditions (no space heating/cooling nor domestic hot water demand). The final RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...
  • Page 68 20 kW) this functionality. [A.6.3.6.4] [5-0C] Limit DI4 Pwr consumpt. control 0 kW~20 kW, step: 0.5 kW (default: 20 kW) Priority: Only applicable in case of an optional RKHW. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...
  • Page 69 <4°C (pump will be activated for 10 minutes and deactivated after X04+08 and RHVH/X04+08), the setting [4‑01] defines the priority of 10 minutes). ROTEX shall NOT be held liable for any damage the electrical heaters depending on applicable limitation. resulting this functionality.

  • Page 70: Menu Structure: Overview User Settings

    Tank temperature Quiet level [7.7] Set weather dependent Main [7.7.1] Main Additional Set weather-dependent heating Set weather-dependent cooling [7.7.2] Additional Set weather-dependent heating Set weather-dependent cooling Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 71: 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. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 72: Commissioning

    (only applicable in case of hybrid system) needed during defrost/backup heater operation. The system is properly earthed and the earth terminals are tightened. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 73: Air Purge Function

    > Installer settings > Commissioning > Air purge > Type. 3 Select a test and press . Example: Heating. 3 Select Manual and press 4 Select OK and press RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 74: To Perform An Actuator Test Run

    1 the duration in hours, up to 72 hours, ▪ Alarm output test 2 the desired leaving water temperature. ▪ Cooling/heating signal test Example: ▪ Quick heat-up test ▪ Circulation pump test Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 75: 10 Hand-Over To The User

    Maintenance and service Screed dryout Current step NOTICE Remaining 14d 12h Desired LWT 25°C Maintenance should preferably be carried out yearly by an installer or service agent. Stop RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 76: Overview: Maintenance And Service

    Booster heater of the domestic hot water tank INFORMATION Only for wall-mounted units equipped with a domestic hot water tank with a built-in electrical booster heater (RKHW). Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 77: Troubleshooting

    The preferential kWh rate signal Wait for the power to return (2 was sent by the electricity hours max.). company RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 78: Symptom: The Pump Is Making Noise (Cavitation)

    ▪ Replace the pressure relief valve. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 79: Symptom: Decoration Panels Are Pushed Away Due To A Swollen Tank

    OU: Malfunction of discharge Please contact your dealer. pipe thermistor. OU: PCB defect. 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 4P384979-1 – 2015.01...
  • Page 80 Power reset required. Heat exchanger frozen. Water flow problem. EEPROM reading error. Heat exchanger frozen. Tank disinfection function not Abnormal increase outlet completed correctly. water temperature. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 81: Disposal

    1 Press the forced cooling operation switch SW1 to begin forced cooling. 2 Press the forced cooling operation switch SW1 to stop forced cooling. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...
  • Page 82 5°C (see temperature read out of the indoor unit). You can achieve this, for example, by activating all fans of the fan coil units. Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 83: 14 Technical Data

    OUTDOOR AIR TEMPERATURE TERMINAL STRIP BRAND NAME LABEL WIRING INLET THERMISTOR WITH EARTH TERMINAL LIQUID STOP VALVE (Ø6.4 CuT) SERVICE PORT GAS STOP VALVE (Ø15.9 CuT) 3TW60814-1B RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 84: Dimensions And Service Space: Indoor Unit

    Refrigerant suction connection Ø15.9 mm flare connection Pump User interface Safety valve pressure Air purge Expansion vessel Pressure gauge Heat exchanger (refrigerant/water) Stop valve with drain/fill valve (1‑1/4" F BSP) (included accessory) Water filter Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...
  • Page 85 14 Technical data Wire entrance of the power supply/communication wire Service door Switch box terminals Switch box terminals for the domestic hot water tank (option) 3D088485 RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 86: Center Of Gravity

    14 Technical data 14.3 Center of gravity 14.3.1 Center of gravity: Outdoor unit UNIT 4TW60819-1 ERLQ*004=RRLQ004CAV3 ERLQ*006/008=RRLQ006CAV3/RRLQ008CAV3 Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 87: Components

    Gives feedback to the interface about the actual flow. Based on this information (and other), the interface adjusts the pump speed. Heat exchanger Water pump Circulates the water in the water circuit. Water filter RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 88: Components: Switch Box (Indoor Unit)

    Socket X13A, receives the K3M connector. Main PCB A1P Socket X9A, receives the thermistor connector. (Only for installations with domestic hot water tank) PCB fuse FU1 Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 89: Piping Diagram

    (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 RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 90: 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 Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 91: Wiring Diagram

    TERMINAL STRIP FIXED PLATE NOTES: REFER TO PURCHASING SPECIFICATION AS303002, UNLESS OTHERWISE SPECIFIED THIS DRAWING WAS DRAWN ON CAD SYSTEM 3TW60816-1A SIZE: LENGTH 140 x WIDTH 230. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...
  • Page 92 Printed circuit board (main) Terminal PCB2 Printed circuit board (inverter) Protective earth PCB3 Printed circuit board (service) Black Q1DI Earth leakage circuit breaker Blue Overload protector Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...
  • Page 93 14 Technical data Brown Green Orange Purple White Yellow RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 94: Wiring Diagram: Indoor Unit

     Domestic hot water tank with solar connection  On/OFF thermostat (wired)  Remote user interface  On/OFF thermostat (wireless)  External indoor thermistor  External thermistor on On/OFF thermostat (wireless)  External outdoor thermistor  Heat pump convector Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...
  • Page 95 6T1 (3~, 230 V, 6 kW) 9WN (3N~, 400 V, 9 kW) 1N~, 50 Hz 230 V AC only for *3V only for *9W 4D090419-1A page 4 RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...
  • Page 96 *04* and *08* and *11* NC valve Heatpump convector Heatpump convector Main LWT zone Add LWT zone Shut-off valve 4D090419-1A page 6 Main PCB User interface PCB Installer reference guide RRLQ004~008CA + RHBH/X04+08CB ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...
  • Page 97 Not mounted in switch box R1T (A3P) Ambient sensor On/OFF thermostat Outlet backup heater thermistor Wiring depending on model External sensor (floor or ambient) Refrigerant liquid side thermistor RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 98: Operation Range

    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 4P384979-1 – 2015.01...

  • Page 99: Esp Curve

    See also the minimum and maximum allowed water flow range in the technical specifications. ▪ Water quality MUST be according to EN directive EC98/83EC. RRLQ004~008CA + RHBH/X04+08CB Installer reference guide ROTEX HPSU low temperature Bi‑bloc 4P384979-1 – 2015.01...

  • Page 100: 15 Glossary

    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 101: Field Settings Table

    Field settings table 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 (*5) *04/08* (*6) *11/16*...
  • Page 102 Installer setting at variance with Field settings table 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 103 Installer setting at variance with Field settings table 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) 2: 3P,(1/2) 3: 3P,(1/1+2) (*3) 4: 3PN,(1/2) 5: 3PN,(1/1+2) (*4) A.2.1.6 [D-01] Preferential kWh rate 0: No...
  • Page 104 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value 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] Temperature range Minimum temp (cooling) 5~18°C, step: 1°C 5°C A.3.1.2.2.4...
  • Page 105 Installer setting at variance with Field settings table 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 106 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value [2-01] Should the disinfection function be executed? 0: No 1: Yes [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 107 Installer setting at variance with Field settings table 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 [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 108 Installer setting at variance with Field settings table 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 109 Installer setting at variance with Field settings table default value Breadcrumb Field code Setting name Range, step Date Value Default value [E-0B] Is a bi-zone kit installed? 0 (#) [E-0C] [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...
  • Page 112 Sede operativa Via Milano, 6 - 20097 San Donato Milanese MI-Italy Tel. +39 02 51619.1 · Fax +39 02 51619222 e-mail info@rotexitalia.it · www.rotexitalia.it Numero verde ROTEX 800-886699 ROTEX ROTEX Heating Systems SARL Représenté en France par: 1, rue des Artisans ·...

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