CEN/TC 312/WG 3 - Thermal solar systems and components; Custom built systems

This European Standard specifies test methods for the performance characterization of stores which are intended for use in small custom built systems as specified in EN 12977-1.
Stores tested according to this document are commonly used in solar combisystems. However, the thermal performance of all other thermal stores with water as a storage medium (e.g. for heat pump systems) can be also assessed according to the test methods specified in this document.
This document applies to combistores with a nominal volume up to 3 000 l and without integrated burner.
NOTE   This document is extensively based on references to EN 12977-3:2012.

This European Standard specifies requirements on durability, reliability and safety of small and large custom built solar heating and cooling systems with liquid heat transfer medium in the collector loop for residential buildings and similar applications.
This document also contains requirements on the design process of large custom built systems.

This European Standard applies to small and large custom built solar heating systems with liquid heat transfer medium for residential buildings and similar applications, and gives test methods for verification of the requirements specified in EN 12977-1.
This document also includes a method for thermal performance characterization and system performance prediction of small custom built systems by means of component testing and system simulation.
Furthermore, this document contains methods for thermal performance characterization and system performance prediction of large custom built systems.
This document applies to the following types of small custom built solar heating systems:
- systems for domestic hot water preparation only;
- systems for space heating only;
- systems for domestic hot water preparation and space heating;
- others (e.g. including cooling).
This document applies to large custom built solar heating systems, primarily to solar preheat systems, with one or more storage vessels, heat exchangers, piping and automatic controls and with collector array(s) with forced circulation of fluid in the collector loop.
This document does not apply to
- systems with a store medium other than water (e.g. phase- change materials),
- thermosiphon systems,
- integral collector-storage (ICS) systems.

This European Standard specifies test methods for the performance characterization of stores which are intended for use in small custom built systems as specified in EN 12977-1.
Stores tested according to this document are commonly used in solar hot water systems. However, the thermal performance of all other thermal stores with water as a storage medium can also be assessed according to the test methods specified in this document.
The document applies to stores with a nominal volume between 50 l and 3 000 l.
This document does not apply to combistores. Performance test methods for solar combistores are specified in EN 12977-4.

This European Standard specifies performance test methods for control equipment. Furthermore, this document contains requirements on accuracy, durability and reliability of control equipment.
The tests described in this document are limited to electrically activated components delivered with or for the system by the final supplier. For the purposes of this document controller and control equipment for solar heating systems and auxiliary heaters, if part of the system, are restricted to the following:
a)   Controllers as:
1)   system clocks, timers and counters;
2)   differential thermostats;
3)   multi-function controllers.
b)   Sensors as:
1)   temperature sensors;
2)   irradiance sensors (for short wave radiation);
3)   pressure sensors;
4)   level sensors;
5)   flow meters;
6)   heat meters.
c)   Actuators as:
1)   pumps;
2)   solenoid and motor valves;
3)   relays.
d)   Combinations of controllers, sensors and actuators listed above.
An additional objective of the procedures described in this document is to verify control algorithms and, together with the accuracy of sensors, to determine control parameters. In addition to verifying the functioning of a controller, its equipment and actuators, the determined parameters may be used for numerical system simulations.
Typically, electrical anodes are not part of the control equipment and are not controlled by the control equipment. However, because they are electrical appliances, electrical anodes are included in this document.
This document is valid for control equipment of solar heating systems for the purpose of hot water preparation and/or space heating. If the solar system is connected to or part of a conventional heating system, the validity is extended to the entire system. In combination with the standards EN 12976-1, EN 12976-2 as well as EN 12977-1, EN 12977-2, EN 12977-3 and EN 12977-4, this document is valid for
e) factory made solar heating systems,
f) small custom built solar heating systems,
g) large custom built solar heating systems,
h)   auxiliary heater equipment used in connection with e), f) and g).

This European Standard specifies test methods for the performance characterization of stores which are intended for use in small custom built systems as specified in EN 12977 1.
Stores tested according to this document are commonly used in solar combisystems. However, the thermal performance of all other thermal stores with water as a storage medium (e.g. for heat pump systems) can be also assessed according to the test methods specified in this document.
This document applies to combistores with a nominal volume up to 3 000 l and without integrated burner.
NOTE   This document is extensively based on references to EN 12977 3:2012.

This European Standard specifies performance test methods for control equipment. Furthermore, this document contains requirements on accuracy, durability and reliability of control equipment.
The tests described in this document are limited to electrically activated components delivered with or for the system by the final supplier. For the purposes of this document controller and control equipment for solar heating systems and auxiliary heaters, if part of the system, are restricted to the following:
a)   Controllers as:
1)   system clocks, timers and counters;
2)   differential thermostats;
3)   multi-function controllers.
b)   Sensors as:
1)   temperature sensors;
2)   irradiance sensors (for short wave radiation);
3)   pressure sensors;
4)   level sensors;
5)   flow meters;
6)   heat meters.
c)   Actuators as:
1)   pumps;
2)   solenoid and motor valves;
3)   relays.
d)   Combinations of controllers, sensors and actuators listed above.
An additional objective of the procedures described in this document is to verify control algorithms and, together with the accuracy of sensors, to determine control parameters. In addition to verifying the functioning of a controller, its equipment and actuators, the determined parameters may be used for numerical system simulations.
Typically, electrical anodes are not part of the control equipment and are not controlled by the control equipment. However, because they are electrical appliances, electrical anodes are included in this document.
This document is valid for control equipment of solar heating systems for the purpose of hot water preparation and/or space heating. If the solar system is connected to or part of a conventional heating system, the validity is extended to the entire system. In combination with the standards EN 12976 1, EN 12976 2 as well as EN 12977 1, EN 12977 2, EN 12977 3 and EN 12977 4, this document is valid for
e)   factory made solar heating systems,
f)   small custom built solar heating systems,
g)   large custom built solar heating systems,
h)   auxiliary heater equipment used in connection with e), f) and g).

This European Standard specifies requirements on durability, reliability and safety of small and large custom built solar heating and cooling systems with liquid heat transfer medium in the collector loop for residential buildings and similar applications.
This document also contains requirements on the design process of large custom built systems.

This European Standard applies to small and large custom built solar heating systems with liquid heat transfer medium for residential buildings and similar applications, and gives test methods for verification of the requirements specified in EN 12977 1.
This document also includes a method for thermal performance characterization and system performance prediction of small custom built systems by means of component testing and system simulation.
Furthermore, this document contains methods for thermal performance characterization and system performance prediction of large custom built systems.
This document applies to the following types of small custom built solar heating systems:
- systems for domestic hot water preparation only;
- systems for space heating only;
- systems for domestic hot water preparation and space heating;
- others (e.g. including cooling).
This document applies to large custom built solar heating systems, primarily to solar preheat systems, with one or more storage vessels, heat exchangers, piping and automatic controls and with collector array(s) with forced circulation of fluid in the collector loop.
This document does not apply to
- systems with a store medium other than water (e.g. phase- change materials),
- thermosiphon systems,
- integral collector-storage (ICS) systems.

This European Standard specifies test methods for the performance characterization of stores which are intended for use in small custom built systems as specified in EN 12977 1.
Stores tested according to this document are commonly used in solar hot water systems. However, the thermal performance of all other thermal stores with water as a storage medium can also be assessed according to the test methods specified in this document.
The document applies to stores with a nominal volume between 50 l and 3 000 l.
This document does not apply to combistores. Performance test methods for solar combistores are specified in EN 12977 4.

This Technical Specification applies to small and large custom built solar heating systems with liquid heat transfer medium for residential buildings and similar applications, and gives test methods for verification of the requirements specified in CEN/TS 12977 1.
This document also includes a method for thermal performance characterization and system performance prediction of small custom built systems by means of component testing and system simulation.
Furthermore, this document contains methods for thermal performance characterization and system performance prediction of large custom built systems.
This document applies to the following types of small custom built solar heating systems:
-   systems for domestic hot water preparation only;
-   systems for space heating only;
-   systems for domestic hot water preparation and space heating;
-   others (e.g. including cooling).
This document applies to large custom built solar heating systems, primarily to solar preheat systems, with one or more storage vessels, heat exchangers, piping and automatic controls and with collector array(s) with forced circulation of fluid in the collector loop.
This document does not apply to:
-   systems with a store medium other than water (e.g. phase change materials);
-   thermosiphon systems;
-   integral collector storage (ICS) systems.

This Technical Specification specifies requirements on durability, reliability and safety of small and large custom built solar heating and cooling systems with liquid heat transfer medium in the collector loop for residential buildings and similar applications.
This document contains also requirements on the design process of large custom built systems.

This Technical Specification specifies test methods for the performance characterization of stores which are intended for use in small custom built systems as specified in CEN/TS 12977 1.
Stores tested according to this document are commonly used in solar combisystems. However, also the thermal performance of all other thermal stores with water as storage medium (e.g. for heat pump systems) can be assessed according to the test methods specified in this document.
This document applies to combisstores with a nominal volume up to 3 000 l and without integrated burner.
NOTE   This document is extensively based on references to EN 12977-3:2008.

This Technical Specification specifies performance test methods for control equipment. Furthermore this document contains requirements on accuracy, durability and reliability of control equipment.
The tests described in this document are limited to components delivered with or for the system by the final supplier. For the purposes of this document controller and control equipment for solar heating systems and auxiliary heaters, if part of the system, are restricted to:
a)   controllers as:
1)   system clocks, timers and counters;
2)   differential thermostats;
3)   multi-function controllers;
b)   sensors as:
1)   temperature sensors;
2)   irradiance sensors (for short wave radiation);
3)   pressure sensors;
4)   level sensors;
5)   flow meters; or
6)   heat meters;
c)   actuators as:
1)   pumps;
2)   solenoid and motor valves; or
3)   relays.
Furthermore combinations of controllers, sensors and actuators listed above.
An additional objective of the procedures described in this document is to verify control algorithms and, together with the accuracy of sensors, to determine control parameters. In addition to verifying the functioning of a controller, its equipment and actuators, the determined parameters may be used for numerical system simulations.
Typically electrical anodes are not part of the control equipment and are not controlled by the control equipment. However, because they are electrical appliances, electrical anodes are included in this document.
This document  is valid for control equipment of solar heating systems for the purpose of hot water preparation and/or space heating. If the solar system is connected to or part of a conventional heating system, the validity is extended to the entire system. In combination with the standards EN 12976-1, EN 12976-2 as well as CEN/TS 12977-1, CEN/TS 12977-2, EN 12977-3 and CEN/TS 12977-4 this document is valid for:
d)   factory made solar heating systems;
a)   small custom built solar heating systems;
b)   (...)

This European Standard specifies test methods for the performance characterization of stores which are intended for use in small custom built systems as specified in prCEN/TS 12977-1.
Stores tested according to this document are commonly used in solar hot water systems. However, also the thermal performance of all other thermal stores with water as storage medium can be assessed according to the test methods specified in this document.
The document applies to stores with a nominal volume between 50 l and 3 000 l.
This document does not apply to combistores. Performance test methods for solar combistores are specified in prCEN/TS 12977-4.