ART.4744–4745 NEW SOLAR THERMAL GROUPS
Art. 4744 Art. 4745
The sun is an everlasting, cheap and clean source of energy. Tiemme’s solar thermal systems convert and use this energy to satisfy the thermal need of domestic households, public structures and buildings such as swimming pools and sports centres. Solar energy is exploited through solar panels together with a series of necessary accessories produced by Tiemme: adjusting and pumping modules, control stations, safety and air-vent valves, mixing valves and expansion tanks. Tiemme’s temperature control instruments are fundamental for achieving maximum energy efficiency from the solar thermal system and ensuring excellent functioning safety even when solar radiation is particularly strong.
FUNCTIONING
The circulation group is used on the primary circuit of solar systems to connect the boiler with the solar panels. The pump in the group is enabled by the signal given by the differential temperature controller. The group, inclusive of insulation, is composed of a delivery line formed of a flow regulator/load group, circulation pump, ball valve with safety group fitting, check valve and thermometer, 6-bar safety group and a backflow line consisting of a ball valve and deaerator.
TECHNICAL CHARACTERISTICS
GENERAL DATA
| Group code: | 4744 – 4745 |
| Dimensions: | DN 25 (1”) |
| Maximum fluid inlet temperature: | 160°C |
| Maximum pressure: | 10bars |
HYDRAULIC GROUP
| Material: | brass CW 617N UNI EN12165 |
| Seals: | EPDM Perox, fluorinated rubber |
| Inlet fitting: | ¾” female thread |
| Outlet fitting: | ¾” female thread |
PUMP MODELS
| Power supply: | 230Vac 50Hz |
| Type: | Grundfos solar 15/65 (3 speed) Wilo ST 15/6 Eco (3 speed) Grundfos PM 15-85 (Class A) Wilo Stratos Tec 15/7 (Class A) ITT-Lowara Ecocirc EA 15-6 (Class A) Halm HEP PWM 15/7 (Class A) |
FLOW METERS
| Mechanical: | 1,5-10 l/min 8-30 l/min |
| Electronic: | 1-40 l/min |
SHELL INSULATION
| Material: | EPP |
TECHNICAL DATA SHEET