Lersen ALFA 15 ECO ALFA 25 ECO, User Instructions

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Alfa
hot air gas- fi red air heaters
30
52.10.03.2017.eng In support of engineering, installation, servicing, and maintenance
Lersen.Net II Central Control
As a leading industrial heating systems manufacturer LERSEN is launching a
brand new central control system. Lersen.Net II is a complete control system for
ultimate heating and ventilation system control.
The system is designed to meet most of the requirements for control of the heating
and ventilation systems operation. Despite being primarily designed for control of
the LERSEN-supplied heating and ventilating units, it can also be used in its version
intended to control other units from other manufacturers.
A complete control unit assembly is equipped with the temperature sensor itself
and with other necessary control and protective functions for control of the hea-
ting and ventilating units’ operation. The L.Net II control unit is to be located near
the unit/heating/ventilation system under control, being connected with the con-
trol server via the 485 data line, itself connected by means of converters. This will
allow communication over the distance, which actually is unlimited.
Should the central control system be from a third party, the RESET signal must not
last more than 1s.
exa m ple wiring m ethods
Oh ř íva č vzduchu
se sm ěš ovací komorou
ALFA TOP
Oh ř íva č vzduchu
se sm ěš ovací komorou
ALFA TOP
Tmav ý infrazá ř i č Penta ECO
Opakova č komunika č ní link y
pro odbo č ku nebo prodlo ž ení link y na více jak 1200m
Tmav ý infrazá ř i č COMPACT
Tmav ý infrazá ř i č COMPACT
Oh ř íva č vzduchu
ALFA TOP
Oh ř íva č vzduchu
ALFA TOP
Pl y nová vratová clona
IOTA GAS
Oh ř íva č vzduchu
ALFA TOP
HW modul 485/USB
p ř evodník link y 485 na USB
HW modul 485/ETH
p ř evodník link y 485 na WiFi/ETH
HW modul 485/ETH
p ř evodník link y 485 na Ethernet
Sestava odtahového
ventilátoru - st ř e š ní
LERSEN
Sestava odtahového
ventilátoru - st ě nou
LERSEN
HW modul 485/ETH
p ř evodník link y 485 na WiFi/ETH
L.net II
L.net II
L.net II
L.net II
L.net II
L.net II
L.net II
L.net II
L.net II
L.net II
L.net II
L.net II
L.net II
Basic mode
heating control in a weekly mode, holidays are included automatically
selects between winter/summer modes
controls mixer chambers/segment angle within a weekly schedule
fault indication
autonomous operation
Extended mode
heating control in a weekly mode holidays are included automatically
selects between winter/summer modes
unit’s mode indication: on, heating, ventilation, fault, reset
remote unit reset
changing the heating unit over to manual mode changing the unit’s or group’s
pro fi le
pre-conditioned functions for space heating control heating/ventilation/circu-
lation
control of groups
consumption monitoring and summarization
For details of functions, wiring and setting see the manual for Central Controller
or contact your dealer.
Ordering No. Central control system item
LN2PC00001 L net II ntb 15“, 2GB RAM, 350GB HDD, WINH 7, LnetIISW
LN2SW00001 L net II control SW, ON/OFF, zones, reset, calendar, SK
LN2RJ00001 L net II control unit, no sensor
LN2TS05001 L net II temperature sensor to control unit, 0.5 m long
LN2TS15001 L net II temperature sensor to control unit, 1.5 m long
LN2TS30001 L net II temperature sensor to control unit, 3 m long
LN2TS50001 L net II temperature sensor to control unit, 5 m long
LN2DP00001 L net II data converter, HW module 485/Ethernet
LN2WF00001 L net II bridging Wi-Fi module 485/Wi-Fi, ext. ant. – 2 pcs