INDIRECT HEAT INTERFACE UNIT

  • WRAS APPROVED
  • 29 VWART
  • BESA  REGISTERED
  • 7 YEAR WARRANTY
  • 3s DHW RESPONSE TIME

YGHP INDIRECT HIU DATA SHEET

YGHP HIU’s offer the very best in terms performance, longevity and price. The YGHP HIU offering is the ultimate package for designer, installer and consumer.

A standard 5 year warranty which is extended to 7 when YGHP commission. When tested to the UK HIU regime it was found to be best in class for DHW response times along with a very impressive 29 VWART. However when individually tested to site specific requirements an indirect model delivered even greater results.

HIU’s from YGHP are the efficient high performing range in the UK with over 150,000 supplied and working throughout Europe.

BESA tested model available with an impressive 29 vwart and quickest DHW response time of any HIU.
WRAS approved.
Dual differential pressure control valve that offers stable and continuous supply of heating and hot water.

Latest SWEP plate heat exchanger offering exceptional performance.

Water arrestor to avoid noise, vibration and water hammer in the system.
EPP thermal casing to ensure minimum heat losses and maximum heat efficiency.
DHW thermostatic control valves offer the most accurate and effective temperature control. The sensor is within the PHE, making this an instant response product. The thermostatic valves are optimised for minimal idle consumption.

Heating thermostatic control valves ensures an accurate temperature across all heating circuits or underfloor heating manifolds

COMPONENTS

The DHW thermostatic control valve (Figure below) is a simple yet reliable device for accurate temperature control that works without power supply and active control. These valves can ensure virtually constant temperatures. The thermostatic control valves are optimized for minimal idle consumption.

Each HIU is equipped with a DHW brazed plate heat exchanger (Figure below) to transfer heat from the heating supply to the HIU for DHW preparation. In the YGHP HIU the DHW heat exchanger has optimized asymmetric plate geometries that combine extraordinary thermal efficiency with a low pressure drop and low return temperatures.

Each YGHP Indirect HIU is equipped with a differential pressure control valve (Figure below) which balances the system to react to pressure variations in variable flow systems. In hydronic heating systems with a HIU, the differential pressure control valve prevents high pressure difference on the HIU by providing the necessary conditions to achieve the desired flow distribution in the system. The differential pressure control valve balances all components of the HIU system. In the HIU, differential pressure control valve with size of DN20, Kvs of 2.5 m3/h, ∆P Setting Range of 20-65 kPa, and Nominal Pipe Size of ¾” is used.

The combined thermometer/pressure gauge (Figure below) enables the operator to observe the heating circuit temperature and system pressure in a single gauge at a single measuring point. It has a bimetal measuring system for temperature measurement and a bourdon tube measuring system for simultaneous pressure measurement. Both values are measured and displayed by a single gauge. A self-closing mounting valve enables the gauge to be replaced without the need to drain the system.

The HIU is equipped with an Expansion Vessel to maintain constant pressure in the system.

The Expansion Vessel is made from rubber diaphragm fixed membrane and according to the standards established by PED 2014/68/UE and DIN EN 13831 regulations.

Prevents use of the HIU using a normally closed actuator. End users must be pre-pay for energy use before the actuator will allow flow from the primary circuit to pass to the unit.

To connect the HIU and the piping system of apartment, mounting plates are used. These plates have 8 ball valves and a flushing by-pass.

Each secured on a galvanized steel plate, ball valves are connected with G ¾” male thread connections.

Flushing by-pass enables the flushing and venting of the system before commissioning the HIU.

1. Plate Heat Exchanger Cover 11. Flushing By-Pass Valve Assembly
2. Manual Air Vent 12. Electrical Junction Box
3 Plate Heat Exchanger Cover 13. Stool Piece for Heat Meter
4. Circulating Pump 14. Y-Pattern Strainer
5. Heating Plate Heat Exchanger 15. Water Hammer Shock Arrestor Vessel
6. DHW Plate Heat Exchanger 16. Differential Pressure Balancing Valve
7. Safety Relief Valve 17. Thermostatic Control Head for Radiators or UFH
8. Temperature & Pressure Gauge 18. Thermal Actuator
9. Cold Water Circuit and Heating Drain Valves 19. Thermostatic Control Head for DHW
10. Primary Isolating Ball Valves 20. Heating Expansion Vessel

INDIRECT HEAT INTERFACE UNIT

WRAS APPROVED

29 VWART

BESA  REGISTERED

7 YEAR WARRANTY

3s DHW RESPONSE TIME

YGHP INDIRECT HIU DATA SHEET

YGHP HIU’s offer the very best in terms performance, longevity and price. The YGHP HIU offering is the ultimate package for designer, installer and consumer.

A standard 5 year warranty which is extended to 7 when YGHP commission. When tested to the UK HIU regime it was found to be best in class for DHW response times along with a very impressive 29 VWART. However when individually tested to site specific requirements an indirect model delivered even greater results.

HIU’s from YGHP are the efficient high performing range in the UK with over 150,000 supplied and working throughout Europe.

BESA tested model available with an impressive 29 vwart and quickest DHW response time of any HIU.
WRAS approved.
Dual differential pressure control valve that offers stable and continuous supply of heating and hot water.

Latest SWEP plate heat exchanger offering exceptional performance.

Water arrestor to avoid noise, vibration and water hammer in the system.
EPP thermal casing to ensure minimum heat losses and maximum heat efficiency.
DHW thermostatic control valves offer the most accurate and effective temperature control. The sensor is within the PHE, making this an instant response product. The thermostatic valves are optimised for minimal idle consumption.

Heating thermostatic control valves ensures an accurate temperature across all heating circuits or underfloor heating manifolds

COMPONENTS

The DHW thermostatic control valve (Figure below) is a simple yet reliable device for accurate temperature control that works without power supply and active control. These valves can ensure virtually constant temperatures. The thermostatic control valves are optimized for minimal idle consumption.

Each HIU is equipped with a DHW brazed plate heat exchanger (Figure below) to transfer heat from the heating supply to the HIU for DHW preparation. In the YGHP HIU the DHW heat exchanger has optimized asymmetric plate geometries that combine extraordinary thermal efficiency with a low pressure drop and low return temperatures.

Each YGHP Indirect HIU is equipped with a differential pressure control valve (Figure below) which balances the system to react to pressure variations in variable flow systems. In hydronic heating systems with a HIU, the differential pressure control valve prevents high pressure difference on the HIU by providing the necessary conditions to achieve the desired flow distribution in the system. The differential pressure control valve balances all components of the HIU system. In the HIU, differential pressure control valve with size of DN20, Kvs of 2.5 m3/h, ∆P Setting Range of 20-65 kPa, and Nominal Pipe Size of ¾” is used.

The combined thermometer/pressure gauge (Figure below) enables the operator to observe the heating circuit temperature and system pressure in a single gauge at a single measuring point. It has a bimetal measuring system for temperature measurement and a bourdon tube measuring system for simultaneous pressure measurement. Both values are measured and displayed by a single gauge. A self-closing mounting valve enables the gauge to be replaced without the need to drain the system.

The HIU is equipped with an Expansion Vessel to maintain constant pressure in the system.

The Expansion Vessel is made from rubber diaphragm fixed membrane and according to the standards established by PED 2014/68/UE and DIN EN 13831 regulations.

Prevents use of the HIU using a normally closed actuator. End users must be pre-pay for energy use before the actuator will allow flow from the primary circuit to pass to the unit.

To connect the HIU and the piping system of apartment, mounting plates are used. These plates have 8 ball valves and a flushing by-pass.

Each secured on a galvanized steel plate, ball valves are connected with G ¾” male thread connections.

Flushing by-pass enables the flushing and venting of the system before commissioning the HIU.

1. Plate Heat Exchanger Cover 11. Flushing By-Pass Valve Assembly
2. Manual Air Vent 12. Electrical Junction Box
3 Plate Heat Exchanger Cover 13. Stool Piece for Heat Meter
4. Circulating Pump 14. Y-Pattern Strainer
5. Heating Plate Heat Exchanger 15. Water Hammer Shock Arrestor Vessel
6. DHW Plate Heat Exchanger 16. Differential Pressure Balancing Valve
7. Safety Relief Valve 17. Thermostatic Control Head for Radiators or UFH
8. Temperature & Pressure Gauge 18. Thermal Actuator
9. Cold Water Circuit and Heating Drain Valves 19. Thermostatic Control Head for DHW
10. Primary Isolating Ball Valves 20. Heating Expansion Vessel