Table of Contents
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EKHBH016BB***
EKHBX016BB***
C
ONTENTS
1.1.
Meaning of warnings and symbols................................................. 2
1.2.
Meaning of used terms .................................................................. 2
2. General safety precautions........................................................ 2
3. Introduction................................................................................ 3
3.1.
General information........................................................................ 3
3.2.
Scope of this manual ..................................................................... 4
3.3.
3.4.
Typical application examples.......................................................... 4
Application 1 .................................................................................. 4
Application 2 .................................................................................. 5
Application 3 .................................................................................. 6
Application 4 .................................................................................. 6
Application 5 .................................................................................. 7
Application 6 .................................................................................. 9
4. Accessories ............................................................................... 9
4.1.
Accessories supplied with the indoor unit ...................................... 9
5. Overview of the indoor unit...................................................... 10
5.1.
Opening the indoor unit................................................................ 10
5.2.
Main components......................................................................... 10
5.3.
Switch box main components ...................................................... 11
5.4.
Functional diagram....................................................................... 12
6. Installation of the indoor unit.................................................... 12
6.1.
Selecting an installation location.................................................. 12
6.2.
Dimensions and service space .................................................... 13
6.3.
Inspecting, handling and unpacking the unit ................................ 13
6.4.
Mounting the indoor unit .............................................................. 14
6.5.
EKHBX models) ........................................................................... 14
6.6.
Refrigerant pipework .................................................................... 14
6.7.
Water pipework ............................................................................ 14
Checking the water circuit ............................................................ 14
6.8.
General precautions concerning water circuit .............................. 15
pre-pressure................................................................................. 16
Setting the pre-pressure of the expansion vessel ........................ 17
Connecting the water circuit......................................................... 17
6.9.
Charging water............................................................................. 17
6.10. Piping insulation........................................................................... 17
7. Electrical wiring work ............................................................... 17
7.1.
Precautions on electrical wiring work........................................... 17
7.2.
Internal wiring - Parts table .......................................................... 18
7.3.
System overview of field wiring .................................................... 18
Field wiring guidelines.................................................................. 19
communication cable ................................................................... 19
Connection of the backup heater power supply ........................... 20
Connection of the thermostat cable ............................................. 20
Connection of the valve control cables......................................... 21
Connection of the bottom plate heater......................................... 21
Connection to a benefit kWh rate power supply........................... 21
7.4.
Relocation of the digital controller ................................................ 22
Mounting ...................................................................................... 22
8.1.
DIP switch settings overview........................................................ 23
8.2.
8.3.
8.4.
8.5.
Initial start-up at low outdoor ambient temperatures.................... 25
8.6.
Pre-operation checks ................................................................... 25
Checks before initial start-up........................................................ 25
8.7.
Powering up the indoor unit ......................................................... 25
8.8.
Setting the pump speed ............................................................... 26
8.9.
Field settings ................................................................................ 26
Procedure .................................................................................... 26
Detailed description ..................................................................... 26
8.10. Field settings table ....................................................................... 39
Installation manual
1
Indoor unit for air to water heat pump system
9. Test run and final check ........................................................... 43
Page
10. Maintenance and service......................................................... 45
11. Troubleshooting........................................................................ 46
The original instructions are written in English. All other languages
are translations of the original instructions.
9.1.
Final check ................................................................................... 43
9.2.
Automatic test run ........................................................................ 43
9.3.
Test run operation (manual) ......................................................... 43
Procedure .................................................................................... 43
9.4.
Underfloor heating screed dry-out program ................................. 43
Disclaimer .................................................................................... 43
Field settings................................................................................ 43
Getting started ............................................................................. 44
10.1. Maintenance activities.................................................................. 45
Cautions before obtaining maintenance and service ................... 45
Opening the unit........................................................................... 45
Maintenance and service ............................................................. 45
11.1. General guidelines ....................................................................... 46
11.2. General symptoms ....................................................................... 46
11.3. Error codes .................................................................................. 48
12.1. General ........................................................................................ 50
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.
Indoor unit for air to water heat pump system
Installation manual
EKHBH/X016BB
4PW62572-1A - 01.2011
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