Installation manual
1
EKHBH/X008BB
Indoor unit for air to water heat pump system
4PW62570-1A – 01.2011
C
ONTENTS
Page
Definitions.................................................................................. 2
Meaning of warnings and symbols................................................. 2
Meaning of used terms .................................................................. 2
General safety precautions........................................................ 2
Introduction................................................................................ 3
General information........................................................................ 3
Scope of this manual ..................................................................... 4
Model identification ........................................................................ 4
Typical application examples.......................................................... 5
Application 1 .................................................................................. 5
Application 2 .................................................................................. 5
Application 3 .................................................................................. 6
Application 4 .................................................................................. 7
Application 5 .................................................................................. 7
Application 6 .................................................................................. 9
Accessories ............................................................................. 10
Accessories supplied with the indoor unit .................................... 10
Overview of the indoor unit ...................................................... 10
Opening the indoor unit................................................................ 10
Main components......................................................................... 11
Switch box main components ...................................................... 12
Functional diagram....................................................................... 12
Installation of the indoor unit.................................................... 13
Selecting an installation location .................................................. 13
Dimensions and service space .................................................... 13
Inspecting, handling and unpacking the unit ................................ 14
Mounting the indoor unit .............................................................. 14
Refrigerant pipework .................................................................... 15
General precautions concerning water circuit .............................. 15
Checking the water volume and expansion vessel
pre-pressure................................................................................. 16
Setting the pre-pressure of the expansion vessel ........................ 17
Connecting the water circuit......................................................... 17
Charging water............................................................................. 17
Electrical wiring work ............................................................... 18
Precautions on electrical wiring work........................................... 18
Internal wiring - Parts table .......................................................... 18
System overview of field wiring .................................................... 19
Field wiring guidelines.................................................................. 19
Connection of the indoor unit power supply and
communication cable ................................................................... 20
Connection of the backup heater power supply ........................... 20
Connection of the thermostat cable ............................................. 21
Connection of the valve control cables......................................... 21
Connection of the bottom plate heater ......................................... 21
Connection to a benefit kWh rate power supply........................... 22
Start-up and configuration ....................................................... 23
DIP switch settings overview........................................................ 23
Room thermostat installation configuration.................................. 24
Pump operation configuration ...................................................... 24
Domestic hot water tank installation configuration ....................... 25
Initial start-up at low outdoor ambient temperatures.................... 25
Powering up the indoor unit ......................................................... 26
Setting the pump speed ............................................................... 26
Field settings ................................................................................ 26
Procedure .................................................................................... 26
Detailed description ..................................................................... 27
Test run and final check ........................................................... 43
Final check ................................................................................... 43
Underfloor heating screed dry-out program ................................. 43
Disclaimer .................................................................................... 43
Field settings ................................................................................ 43
Getting started ............................................................................. 44
10. Maintenance and service......................................................... 45
10.1. Maintenance activities.................................................................. 45
11. Troubleshooting........................................................................ 46
11.1. General guidelines ....................................................................... 46
11.2. General symptoms ....................................................................... 46
11.3. Error codes .................................................................................. 48
12. Technical specifications ........................................................... 50
Appendix ........................................................................................ 51
Introduction .............................................................................. 51
General information...................................................................... 51
Overview of the indoor unit ...................................................... 53
Main components......................................................................... 53
Installation of the indoor unit .................................................... 53
Electrical wiring work ............................................................... 53
Start-up and configuration ....................................................... 53
Re-start at low outdoor ambient temperatures............................. 53
Field settings ................................................................................ 53
11. Troubleshooting........................................................................ 58
11.2. General symptoms ....................................................................... 58
The original instructions are written in English. All other languages
are translations of the original instructions.
EKHBH008BB***
EKHBX008BB***
Indoor unit for air to water heat pump system
Installation manual
CAREFULLY READ THESE INSTRUCTIONS BEFORE
INSTALLATION. THEY WILL TELL YOU HOW TO INSTALL
AND HOW TO CONFIGURE THE UNIT PROPERLY.
KEEP THIS MANUAL IN A HANDY PLACE FOR FUTURE
REFERENCE.
THE UNIT DESCRIBED IN THIS MANUAL IS DESIGNED
FOR INDOOR INSTALLATION ONLY AND FOR AMBIENT
TEMPERATURES RANGING 4°C~35°C.