HYDRONIC UNIT LE B
3
CONTENTS
GENERAL
General warnings ................................................................................................................................................................. 5
Basic safety rules ................................................................................................................................................................. 6
Description .......................................................................................................................................................................... 7
Identification ........................................................................................................................................................................ 7
Technical Data ..................................................................................................................................................................... 9
Performance based on the climatic zone ............................................................................................................................11
Electrical data .....................................................................................................................................................................11
Operating conditions ......................................................................................................................................................... 12
Overall dimensions ........................................................................................................................................................... 13
Wiring diagrams ................................................................................................................................................................ 14
Refrigerating circuit diagram .............................................................................................................................................. 27
INSTALLER
Product delivery ................................................................................................................................................................. 28
Handling and transport ...................................................................................................................................................... 29
Access to inner parts ......................................................................................................................................................... 29
Installation ......................................................................................................................................................................... 30
Hydraulic connections ....................................................................................................................................................... 32
Condensate discharge connection .................................................................................................................................... 34
Electrical wiring .................................................................................................................................................................. 34
Control panel ..................................................................................................................................................................... 39
Charging the system .......................................................................................................................................................... 40
Adjustment of the circulation pump.....................................................................................................................................41
TECHNICAL ASSISTANCE CENTRE
First commissioning ........................................................................................................................................................... 42
Switching off for lengthy periods ........................................................................................................................................ 43
System drainage ................................................................................................................................................................ 43
Routine maintenance ......................................................................................................................................................... 43
Extraordinary maintenance ................................................................................................................................................ 44
COMMAND
Control panel ..................................................................................................................................................................... 46
Functions .......................................................................................................................................................................... 48
FAULTS
Fault signal ........................................................................................................................................................................ 50
Table of user parameters and functions ............................................................................................................................ 52
Table of installer parameters and functions ....................................................................................................................... 54
Table of factory parameters and functions ......................................................................................................................... 58
In some parts of the booklet, various symbols are used:
WARNING = for actions requiring special care and adequate preparation
DO NOT = for actions that SHOULD ON NO ACCOUNT be carried out
