Alfa
hot air gas-
fi
red air heaters
2
52.10.03.2017.eng
In support of engineering, installation, servicing, and maintenance
List of Contents
Introduction............................................................................................................3
General Precautions ................................................................................................3
General User Instructions........................................................................................4
Warranty .................................................................................................................4
Installation in General ............................................................................................4
Installation Rules ....................................................................................................4
Readiness Conditions for Commissioning of a Reserved Lersen Gas-
fi
red
Equipment ..............................................................................................................5
LERSEN FlexiDrive Modulation ................................................................................5
ALFA TOP Technical Parameters ..............................................................................6
ALFA ECO Technical Parameters ..............................................................................6
Fans: Technical Parameters .....................................................................................7
Air
fl
ow Reach Diagram ...........................................................................................7
Main Dimensions ....................................................................................................8
Alfa 15-49 ...............................................................................................................8
Alfa 62 ....................................................................................................................8
Method of Use .........................................................................................................9
Installation Safe Distances ......................................................................................9
Fixed Brackets .......................................................................................................10
Pivoted Brackets ...................................................................................................10
Suspension Cable System ......................................................................................11
Installation Kits.....................................................................................................12
Standard Cowl Flaps – Horizontal Installation, for Installations Up 3m ................13
Double-sided Standard Cowl Flaps: Horizontal, for Installations Up to 3m ...........13
Single-sided Standard Cowl Flaps: Horizontal, for Installations Up to 3m ...........14
Secondary Cowl Flaps: Horizontal Installation, for Installation Over 3 m ..............14
Anemostat V: Vertical Installation, for Installations Up to 5 m .............................15
Anemostat S: Vertical Installation, for Installations 5 to 12 m ..............................15
Four-sided Anemostat: Vertical Installation, for Installations Up to 5 m ..............16
IP54 Kit for the AL15-AL62 Units ...........................................................................17
Filteration Boxes ...................................................................................................18
GLAZ Z and Paper Filters .......................................................................................19
Pocket Filters ........................................................................................................19
Flue Extraction for Capacities ..............................................................................20
Over 7 kW..............................................................................................................20
Flue Extraction/Air Inlet .......................................................................................20
Fuel Extraction System: .......................................................................................20
Installation ...........................................................................................................20
Suction & Extraction Items ...................................................................................21
Suction & Extraction Items ...................................................................................22
Gas Connections....................................................................................................24
Electro Connections ..............................................................................................24
Electrical Wiring SIGMA + TOP and ECO model 2016 ............................................25
Remote Control .....................................................................................................26
ALFA TOP - Control ................................................................................................27
ALFA TOP - Control ................................................................................................27
ALFA ECO - Control ...............................................................................................27
Programmable Thermostats .................................................................................28
Easy.Net.Standard Central Control .......................................................................29
Easy.Net.Standard 02: Wiring Diagram .................................................................29
Lersen.Net II Central Control .................................................................................30
Commissioning .....................................................................................................32
Setting the Combustion, In General ......................................................................32
Alfa TOP and ECO: How to Set Capacity .................................................................33
Modulation Board Functions.................................................................................33
Unit Operation ......................................................................................................34
Routine Maintenance, Technical Care ...................................................................34
Faults, FAQ ............................................................................................................34
Standards, Ordinances, and Protocols ...................................................................35