District Heating Substations

RAT (high temperature space heating) – RBT (low temperature space heating)

RHT (high temperature space heating + domestic hot water) – RHBT (high temperature space heating + domestic hot water)

Floor standing substation are ideal solution for all types of installations in the district-heating plant. Substation’s engineering,  of product and process, allows high quality combined with high energy efficiency.

Main features:

• Version RAT and RHT for high temperaturea >100°C
• Version RBT and RHBT for low temperature <100°C
• Brazed or inspected exchangers
• Only domestic hot water, only space heating or space heating + domestic hot water version
• Heat meter, flow and temperature limiter predisposition
• PN 16/25 Bar for primary circuit
• PN 10 bar for secondary circuit
•  Compact size and easy installation

TECHNICAL DOCUMENTATION

• Operating, instructions and maintenance manual of substation and control system;
• Booklet;
• Conformity declaration and wiring diagram of installed electrical panel;
• Technical documentation of installed material;
• Compliance certificate of installed heat meter;
• Hydraulic diagram;
• Protection and safety certificate of installed equipment;
• Conformity and testing certificates of substation and heat exchanger according to CE Directives/PED.

SERVICES

• Preventive, executive and/or final designing;
• Inspections and feasibility studies;
• Transport and positioning;
• Mechanical and/or electrical installation;
• Start-up/follow-up of the plants;
• Ordinary and extraordinary maintenance;
• Consulting and after-sales services.

The substations ELI35 and RAF35 are ideal for installation in systems operated in district heating working by hot or superheated water, with serial exchangers connection for ELI35 and with
parallel exchangers connection for RAF35.

Main features:

• Power from 10 to 35 kW – ELI 35
• Power from 10 to 35 kW for space heating and to 50 kW for domestic hot water – RAF35
• Space heating only or space heating + domestic hot water version
• Instant hot water production
• Wall-mounted version
• 110 mm heat meter predisposition
• Operator panel
• Remote control thermostat
• PN 16/25 Bar

TECHNICAL DOCUMENTATION

• Operating, instructions and maintenance manual of substation and control system;
• Booklet;
• Conformity declaration and wiring diagram of installed electrical panel;
• Technical documentation of installed material;
• Compliance certificate of installed heat meter;
• Hydraulic diagram;
• Protection and safety certificate of installed equipment;
• Conformity and testing certificates of substation and heat exchanger according to CE Directives/PED.

SERVICES

• Preventive, executive and/or final designing;
• Inspections and feasibility studies;
• Transport and positioning;
• Mechanical and/or electrical installation;
• Start-up/follow-up of the plants;
• Ordinary and extraordinary maintenance;
• Consulting and after-sales services.

The substation VAL is ideal for multi-family utilities operating in district heating plants working by hot or superheated water, parallel exchangers connection.Main features:

• Power from 36 to 100 kW for space heating and to 150 kW for domestic hot water
• Only domestic hot water, only space heating or space heating + domestic hot water version
• Instant hot water production
• Wall-mounted version
• 190 mm heat meter predisposition
• PN 16/25 Bar

TECHNICAL DOCUMENTATION

• Operating, instructions and maintenance manual of substation and control system;
• Booklet;
• Conformity declaration and wiring diagram of installed electrical panel;
• Technical documentation of installed material;
• Compliance certificate of installed heat meter;
• Hydraulic diagram;
• Protection and safety certificate of installed equipment;
• Conformity and testing certificates of substation and heat exchanger according to CE Directives/PED.

SERVICES

• Preventive, executive and/or final designing;
• Inspections and feasibility studies;
• Transport and positioning;
• Mechanical and/or electrical installation;
• Start-up/follow-up of the plants;
• Ordinary and extraordinary maintenance;
• Consulting and after-sales services.

The substation MODIS is ideal for installation in systems that require complete and autonomy individual heating systems.Main features:

• Power up to 35 kW
• Instant hot water production
• Traditional wall-mounted or built-in version
• 110 mm heat meter predisposition
• Hot and cold water heat meter predisposition
• Operator panel
• Remote control thermostat
• PN 6 Bar

TECHNICAL DOCUMENTATION

• Operating, instructions and maintenance manual of substation and control system;
• Booklet;
• Conformity declaration and wiring diagram of installed electrical panel;
• Technical documentation of installed material;
• Compliance certificate of installed heat meter;
• Hydraulic diagram;
• Protection and safety certificate of installed equipment;
• Conformity and testing certificates of substation and heat exchanger according to CE Directives/PED.

SERVICES

• Preventive, executive and/or final designing;
• Inspections and feasibility studies;
• Transport and positioning;
• Mechanical and/or electrical installation;
• Start-up/follow-up of the plants;
• Ordinary and extraordinary maintenance;
• Consulting and after-sales services.

Stea Srl takes care of planning, design and construction of thermal plants that produce heat exploiting renewable sources such as woody biomass and geothermal heat.
In his experience Stea Srl has realized several plants serving district heating networks by recovering heat from production cycles and creating it from renewable sources.

TECHNICAL DOCUMENTATION

• Operating, instructions and maintenance manual of substation and control system;
• Booklet;
• Conformity declaration and wiring diagram of installed electrical panel;
• Technical documentation of installed material;
• Compliance certificate of installed heat meter;
• Hydraulic diagram;
• Protection and safety certificate of installed equipment;
• Conformity and testing certificates of substation and heat exchanger according to CE Directives/PED.

SERVICES

• Preventive, executive and/or final designing;
• Inspections and feasibility studies;
• Transport and positioning;
• Mechanical and/or electrical installation;
• Start-up/follow-up of the plants;
• Ordinary and extraordinary maintenance;
• Consulting and after-sales services.

• Management system and remote control of substations;
• Auto-reading of consume about installed heat meters;
• Trend on line of main characteristics of substation;
• Continuous monitoring of district heating network operating conditions;
• Intervention programs on individual users according to load condition of the power plant;
• Opportunity to check the system by smartphone.