HYDRONIC UNIT LE
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 .............................................................................................................................................. 21
INSTALLER
Product delivery ................................................................................................................................................................. 22
Handling and transport ...................................................................................................................................................... 22
Access to inner parts ......................................................................................................................................................... 22
Installation ......................................................................................................................................................................... 23
Hydraulic connections ....................................................................................................................................................... 25
Condensate discharge connection .................................................................................................................................... 27
Electrical wiring .................................................................................................................................................................. 27
Control panel ..................................................................................................................................................................... 31
Charging the system .......................................................................................................................................................... 32
Adjustment of the circulation pump.....................................................................................................................................33
TECHNICAL ASSISTANCE CENTRE
First commissioning ........................................................................................................................................................... 34
Switching off for lengthy periods ........................................................................................................................................ 34
System drainage ................................................................................................................................................................ 35
Routine maintenance ......................................................................................................................................................... 35
Extraordinary maintenance ................................................................................................................................................ 36
COMMAND
Control panel ..................................................................................................................................................................... 38
Functions .......................................................................................................................................................................... 40
FAULTS
Fault signal ........................................................................................................................................................................ 48
Table of user parameters and functions ............................................................................................................................ 52
Table of installer parameters and functions ....................................................................................................................... 54
Table of factory parameters and functions ......................................................................................................................... 56
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
This manual Doc-0075134 Ed. 3 (05/16) is made up of 60 pages
