1 General safety precautions
Installer reference guide
3
RRLQ004~008CA + RHBH/X04+08CB
ROTEX HPSU low temperature Bi‑bloc
4P384979-1C – 2017.04
7.9.3 Precautions when connecting the electrical wiring ..... 39
7.9.4 Guidelines when connecting the electrical wiring ....... 39
7.9.5 To connect the electrical wiring on the outdoor unit.... 39
7.9.6 To connect the electrical wiring on the indoor unit...... 40
7.9.7 To connect the main power supply ............................. 40
7.9.8 To connect the backup heater power supply .............. 41
7.9.9 To connect the user interface ..................................... 42
7.9.10 To connect the shut-off valve...................................... 43
7.9.11 To connect the electrical meters ................................. 43
7.9.12 To connect the domestic hot water pump ................... 44
7.9.13 To connect the alarm output ....................................... 44
7.9.14 To connect the space cooling/heating ON/OFF
output .......................................................................... 44
7.9.15 To connect the changeover to external heat source... 44
7.9.16 To connect the power consumption digital inputs ....... 44
7.9.17 To connect the safety thermostat (normal closed
contact) ....................................................................... 44
7.10 Finishing the outdoor unit installation ........................................ 45
7.10.1 To finish the outdoor unit installation .......................... 45
7.10.2 To close the outdoor unit ............................................ 45
7.11 Finishing the indoor unit installation .......................................... 45
7.11.1 To fix the user interface cover to the indoor unit......... 45
7.11.2 To close the indoor unit............................................... 45
8 Configuration 45
8.1 Overview: Configuration ............................................................ 45
8.1.1 To connect the PC cable to the switch box................. 46
8.1.2 To access the most used commands ......................... 46
8.1.3 To copy the system settings from the first to the
second user interface.................................................. 47
8.1.4 To copy the language set from the first to the second
user interface .............................................................. 47
8.1.5 Quick wizard: Set the system layout after first power
ON............................................................................... 47
8.2 Basic configuration .................................................................... 48
8.2.1 Quick wizard: Language / time and date..................... 48
8.2.2 Quick wizard: Standard............................................... 48
8.2.3 Quick wizard: Options ................................................. 49
8.2.4 Quick wizard: Capacities (energy metering) ............... 52
8.2.5 Space heating/cooling control..................................... 52
8.2.6 Domestic hot water control ......................................... 55
8.2.7 Contact/helpdesk number........................................... 56
8.3 Advanced configuration/optimization......................................... 56
8.3.1 Space heating/cooling operation: advanced............... 56
8.3.2 Domestic hot water control: advanced........................ 60
8.3.3 Heat source settings ................................................... 65
8.3.4 System settings........................................................... 67
8.4 Menu structure: Overview user settings .................................... 71
8.5 Menu structure: Overview installer settings............................... 72
9 Commissioning 73
9.1 Overview: Commissioning......................................................... 73
9.2 Precautions when commissioning ............................................. 73
9.3 Checklist before commissioning................................................ 73
9.4 Checklist during commissioning ................................................ 73
9.4.1 To check the minimum flow rate ................................. 74
9.4.2 Air purge function........................................................ 74
9.4.3 To perform a test run .................................................. 75
9.4.4 To perform an actuator test run .................................. 75
9.4.5 Underfloor heating screed dryout................................ 75
10 Hand-over to the user 76
11 Maintenance and service 77
11.1 Overview: Maintenance and service ......................................... 77
11.2 Maintenance safety precautions................................................ 77
11.2.1 Opening the indoor unit............................................... 77
11.3 Checklist for yearly maintenance of the outdoor unit ................ 77
11.4 Checklist for yearly maintenance of the indoor unit................... 77
12 Troubleshooting 78
12.1 Overview: Troubleshooting......................................................... 78
12.2 Precautions when troubleshooting ............................................. 78
12.3 Solving problems based on symptoms....................................... 78
12.3.1 Symptom: The unit is NOT heating or cooling as
expected ...................................................................... 78
12.3.2 Symptom: The compressor does NOT start (space
heating or domestic water heating).............................. 78
12.3.3 Symptom: The pump is making noise (cavitation) ....... 79
12.3.4 Symptom: The pressure relief valve opens.................. 79
12.3.5 Symptom: The water pressure relief valve leaks ......... 79
12.3.6 Symptom: The space is NOT sufficiently heated at
low outdoor temperatures ............................................ 79
12.3.7 Symptom: The pressure at the tapping point is
temporarily unusually high ........................................... 80
12.3.8 Symptom: Decoration panels are pushed away due
to a swollen tank .......................................................... 80
12.3.9 Symptom: Tank disinfection function is NOT
completed correctly (AH-error)..................................... 80
12.4 Solving problems based on error codes ..................................... 80
12.4.1 Error codes: Overview ................................................. 80
13 Disposal 83
13.1 Overview: Disposal..................................................................... 83
13.2 To pump down............................................................................ 83
13.3 To start and stop forced cooling ................................................. 83
14 Technical data 84
14.1 Piping diagram: Outdoor unit...................................................... 84
14.2 Piping diagram: Indoor unit ........................................................ 85
14.3 Wiring diagram: Outdoor unit ..................................................... 86
14.4 Wiring diagram: Indoor unit ........................................................ 86
14.5 Drain pan necessity .................................................................... 90
14.6 ESP curve: Indoor unit ............................................................... 91
15 Glossary 91
16 Field settings table 92
1 General safety precautions
1.1 About the documentation
▪ The original documentation is written in English. All other
languages are translations.
▪ The precautions described in this document cover very important
topics, follow them carefully.
▪ The installation of the system, and all activities described in the
installation manual and the installer reference guide must be
performed by an authorized installer.
1.1.1 Meaning of warnings and symbols
DANGER
Indicates a situation that results in death or serious injury.
DANGER: RISK OF ELECTROCUTION
Indicates a situation that could result in electrocution.
DANGER: RISK OF BURNING
Indicates a situation that could result in burning because of
extreme hot or cold temperatures.
DANGER: RISK OF EXPLOSION
Indicates a situation that could result in explosion.
WARNING
Indicates a situation that could result in death or serious
injury.
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