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|LWA 252 |
LWA 252 SOL
WWW.STIEBEL-ELTRON.COM
CONTENTS
OPERATION
1. General
information ____________________________________________3
1.1 Document
information
____________________________________________ 3
1.2 Key to symbols ______________________________________________________ 3
2. Safety
____________________________________________________________3
2.1 Intended
use
_________________________________________________________ 3
2.2 Safety
information
_________________________________________________ 3
2.3 CE
designation
______________________________________________________ 3
2.4 Test
symbols
_________________________________________________________ 3
3. Device
description
______________________________________________4
3.1 Properties
____________________________________________________________ 4
3.2 Function
description
_______________________________________________ 4
4. Operation
________________________________________________________4
4.1 Description of the user interface ________________________________ 4
4.2 Operation
____________________________________________________________ 5
4.3 Essential facts in brief _____________________________________________ 5
4.4 Display
________________________________________________________________ 5
4.5 Operating modes (control level 1) _______________________________ 5
4.6 Equipment menu (control level 2) _______________________________ 6
4.7 Adjustments at control level 2 ___________________________________ 6
4.8 Remote control RC 1 ______________________________________________ 12
5.
Maintenance and care ________________________________________ 12
6.
What to do if... _______________________________________________ 12
6.1 . . . no hot water is available ____________________________________ 12
6.2 . . . the safety valve of the cold water supply line is dripping
________________________________________________________________________ 12
6.3 . . . the condensate drain drips _________________________________ 12
6.4 . . . the red indicator in the fascia illuminates _______________ 12
6.5 . . . other faults occur _____________________________________________ 12
INSTALLATION
7. Safety
__________________________________________________________ 13
7.1 General safety instructions ______________________________________ 13
7.2 Instructions, standards and regulations ______________________ 13
7.3 Ventilation
system
_________________________________________________ 13
8. Device
description
____________________________________________ 14
8.1 Function
_____________________________________________________________ 14
8.2 Design
operation
__________________________________________________ 14
8.3 Standard
delivery
__________________________________________________ 14
8.4 Special
accessories
________________________________________________ 14
9. Installation ____________________________________________________ 15
9.1 Installation
conditions
____________________________________________ 15
10. Installation
____________________________________________________ 15
10.1 Handling _____________________________________________________________ 15
10.2 DHW connection __________________________________________________ 15
10.3 Condensate drain __________________________________________________ 16
10.4 Solar connection (LWA 252 SOL) ________________________________ 16
10.5 Installing extract air and discharge air pipes ________________ 16
10.6 Power supply _______________________________________________________ 17
11. Commissioning
________________________________________________ 19
11.1 Checks before commissioning __________________________________ 19
11.2 Commissioning overview, control unit LWM ________________ 20
11.3 Commissioning the LWM control unit _________________________ 21
11.4 Commissioning report ____________________________________________ 23
12. Troubleshooting_______________________________________________ 24
13. Maintenance, cleaning and safety equipment _____________ 24
13.1 Maintenance ________________________________________________________ 24
13.2 Cleaning _____________________________________________________________ 24
13.3 Safety equipment __________________________________________________ 24
14. Specification
___________________________________________________ 26
14.1 Wiring diagram ____________________________________________________ 26
14.2 Specification ________________________________________________________ 27
14.3 Fan curve ____________________________________________________________ 28
14.4 Setting air volume flow __________________________________________ 28
14.5 Connection dimensions and variations _______________________ 29
GUARANTEE
ENVIRONMENT AND RECYCLING
