Table of contents
Installation and operation manual
4
EWAQ016~064CAW + EWYQ016~064CAW
Packaged air-cooled water chiller
4P489435-1B – 2017.10
Table of contents
1 About the documentation 4
1.1 About this document.................................................................. 4
For the installer 5
2 About the box 5
2.1 Outdoor unit............................................................................... 5
2.1.1 To remove the accessories from the outdoor unit....... 5
3 About the units and options 5
3.1 About the outdoor unit ............................................................... 5
3.2 System layout............................................................................ 5
4 Preparation 5
4.1 Preparing installation site .......................................................... 5
4.1.1 Installation site requirements of the outdoor unit ........ 5
4.2 Preparing water piping .............................................................. 6
4.2.1 Water circuit requirements.......................................... 6
4.2.2 Formula to calculate the expansion vessel pre-
pressure ...................................................................... 7
4.2.3 To check the water volume and expansion vessel
pre-pressure................................................................ 7
4.2.4 Changing the pre-pressure of the expansion vessel... 8
4.2.5 To check the water volume: Examples ....................... 8
4.3 Preparing electrical wiring ......................................................... 8
4.3.1 Safety device requirements ........................................ 8
5 Installation 8
5.1 Opening the units ...................................................................... 8
5.1.1 To open the outdoor unit............................................. 8
5.1.2 To open the electrical component box of the outdoor
unit .............................................................................. 9
5.2 Mounting the outdoor unit.......................................................... 9
5.2.1 To provide the installation structure............................ 9
5.3 Connecting the water piping...................................................... 10
5.3.1 Precautions when connecting the water piping........... 10
5.3.2 To fill the water circuit ................................................. 10
5.3.3 To protect the water circuit against freezing ............... 10
5.3.4 To insulate the water piping........................................ 11
5.4 Connecting the electrical wiring................................................. 11
5.4.1 Field wiring: Overview................................................. 11
5.4.2 To route and fix the power supply............................... 11
5.4.3 To install the main switch handle................................ 11
5.4.4 To connect the power supply and transmission
cables.......................................................................... 12
5.4.5 To install the remote controller.................................... 12
5.4.6 To install optional equipment ...................................... 13
6 Configuration 13
6.1 Overview: Configuration ............................................................ 13
6.2 Making field settings.................................................................. 13
6.2.1 About making field settings......................................... 13
6.2.2 Field setting components............................................ 14
6.2.3 To access the field setting components...................... 14
6.2.4 To access mode 1 or 2 ............................................... 14
6.2.5 To use mode 1............................................................ 14
6.2.6 To use mode 2............................................................ 15
6.2.7 Mode 1: Monitoring settings........................................ 15
6.2.8 Mode 2: Field settings................................................. 15
6.2.9 Field settings on the remote controller........................ 16
6.3 Switching between cooling and heating .................................... 20
7 Commissioning 21
7.1 Precautions when commissioning ............................................. 21
7.2 Checklist before commissioning................................................ 21
7.3 Final check ................................................................................ 22
8 Troubleshooting 22
8.1 Error codes: Overview................................................................ 22
9 Technical data 23
9.1 Service space: Outdoor unit ....................................................... 23
9.2 Piping diagram: Outdoor module................................................ 23
9.3 Wiring diagram: Outdoor unit ..................................................... 25
For the user 26
10 About the system 26
10.1 System layout............................................................................. 26
11 User interface 26
12 Operation 27
12.1 Operation range ......................................................................... 27
12.2 Quick start-up ............................................................................. 27
12.3 Operating the system ................................................................. 28
12.3.1 About the clock ............................................................ 28
12.3.2 About operating the system ......................................... 29
12.3.3 Space cooling operation .............................................. 29
12.3.4 Space heating operation.............................................. 29
12.3.5 Other operation modes ................................................ 30
12.3.6 Schedule timer............................................................. 30
12.3.7 Operating the optional demand PCB ........................... 34
12.3.8 Operating the optional external control adapter........... 34
12.3.9 Operating the optional remote controller...................... 35
13 Maintenance and service 35
13.1 About the refrigerant................................................................... 35
13.2 After-sales service and warranty ................................................ 35
13.2.1 Warranty period ........................................................... 35
13.2.2 Recommended maintenance and inspection............... 35
14 Troubleshooting 35
14.1 Error codes: Overview................................................................ 36
15 Relocation 36
16 Disposal 36
1 About the documentation
1.1 About this document
INFORMATION
Make sure that the user has the printed documentation and
ask him/her to keep it for future reference.
Target audience
Authorised installers + end users
INFORMATION
This appliance is intended to be used by expert or trained
users in shops, in light industry and on farms, or for
commercial use by lay persons.
Documentation set
This document is part of a documentation set. The complete set
consists of:
▪ General safety precautions:
▪ Safety instructions that you must read before installing
▪ Format: Paper (in the box of the outdoor unit)
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