Lovato T-FAST MINI Instructions Relatives À L'installation, L'utilisation Et La Maintenance page 22

3-PORT MIXING VALVE
Function: DHW temperature settings
The mixing valve must be controlled by:
- settable thermostatic actuator from 40 to 70°C with bulb (heating secondary flow). he expansion of the liquid inside the bulb determine
the functioning of the
3-port valve with body in brass – No. 3 threaded male connections G1" with flat seat.
Stroke of the shutter 3,7 mm.
With the valve's stem in lower position the port A is closed, with the valve's stem in high position the
port B is closed.
Kvs: 5,0
Max operating temperature: 120°C
Max operating pressure: 16 bar
M-BUS ULTRASONIC ENERGY METER Qn 1,5 m³/h - L 110 mm x ¾
"EYRON" energy metering systems are electronic devices with microprocessor made of a single-jet volumetric meter.
The meters, connected to temperature and volume sensors, can measure the energy used for heating or cooling the rooms
and the volume of domestic hot or cold water. They can also store relevant data and make them available for cost subdivisions.
Furthermore they are certified according to the law EN 1434 and they have the MID certification.
For energy metering, two temperature sensors (supply and return) and water meter are necessary. This one collects data relative
to the flow rate, while Δt is measured by PT 500 temperature sensors. 2 further signals may be linked to EYRON meter, usually
data coming from volumetric meters for hot and cold domestic water.
Max temperature : 90 °C
IP : IP54
∆t (K) : 3÷100 K
Min. measurement in hor. position : 15 l/h
Min. measurement in ver. position : 15 l/h
Battery life : 6+1 anni
Nominal flow rate Qn : 1,5 m³/h
Max. flow rate Qmax : 3,0 m³/h
Connections : 110 mm x G ¾"
Pulse output : 2i
ELECTRICAL CONNECTIONS
1
3
4
valve. Connection
EyRON
Volumetric meter 1 DHW
1
Volumetric meter 2 DCW
2
2
Supply temperature sensor
3
Integrated return temperature sensor
4
Assembling instructions and maintenance
SECTION 8: COMPONENTS
M30x1,5.
BEFORE ASSEMBLING hEAT METERS/
COUNTERS, ThE SySTEM NEEDS TO BE
WAShED AND CLEANED, IN ORDER TO AVOID
DAMAGES AND OThER MALFUNCTIONS OF
PRESSURE LOSS
A
AB
!
IMPORTANT
PLEASE NOTE:
ThE MAChINERy.
Qn
1,5 m
B
3 /h
100 KPa
25 KPa
l/h
22