FAR 3090 Installation Instruction

FAR Rubinetterie S.p.A. - www.far.eu
SOLARFAR units allows use of a solar thermal system in combination with a boiler. The domestic hot water source is selected on the basis of the
temperature detected by the solar storage-tank sensor.
Art.3090
Solar unit for systems with thermal integration
• Solar mixer with 25-65°C temperature range
• 3/4" diverter valve with 230V 8s actuator with manual release
• Max. pressure: 10 bar
• Max. temperature: 110°C
• Non-return valves on the inlets
• EPDM sealing gaskets
• Insulation
• Remote thermostat with immersion sensor
• Connections with 3/4" unions
Solar unit with thermal integration
When the temperature of the water in the storage tank
exceeds the set value (45°C) indicated on the capillary
thermostat, the 3-way zone valve will divert the flow to
the thermostatic mixer, making it available to users.
If the stored water temperature falls below the set
point, the 3-way zone valve will re-direct the water
to the boiler, which heats the water to the desired
temperature.
Solar unit without thermal integration
Once the temperature of the water in the storage
tank exceeds the set value (45°C) indicated on the
capillary thermostat, the 3-way zone valve will divert
the flow to the thermostatic mixer, making it available
to users. If the stored water temperature falls below
the set point, the hot water will be supplied directly
from the boiler.
INSTALLATION
The illustrations below show both correct and incorrect solar unit installation.
Installation Instruction
UNITS FOR SOLAR THERMAL SYSTEMS
Water temperature produced by
solar thermal system: T>45°C
Art.3090
COLD
DOMESTIC
WATER
Water temperature produced by
solar thermal system: T>45°C
Art.3091
Art.3090 - Art.3091
Art.3091
Solar unit for systems without thermal integration
• Solar mixer with 25 -65°C temperature range
• 3/4" diverter valve with 230V 8s actuator with manual release
• Max. pressure: 10 bar
• Max. temperature: 110°C
• Non-return valves on the inlets
• EPDM sealing gaskets
• Insulation
• Remote thermostat with immersion sensor
• Connections with 3/4" unions
USERS SOLAR
SYSTEM
WATER
SOLAR
SYSTEM
WATER
COLD
USERS
DOMESTIC
WATER
Water temperature produced by
solar thermal system: T<45°C
BOILER
COLD
DOMESTIC
WATER
SOLAR
USERS
SYSTEM
WATER
Water temperature produced by
solar thermal system: T<45°C
USERS
Art.3090-3091
HOT
WATER FROM
THE BOILER