Electrical Components; Standard Hydraulic Components - Ravelli HR EVO 290 Installations-, Bedienungs- Und Wartungsanleitung

Rev.1 16/03/2018
ENG
Pag.82

Electrical components

Key:
1- Control panel EVO model
2- Temperature safety thermostats
3- Air flow meter
4- Electronic board
5- Gearmotor
6- Vacuum switch
7- Fume probe

Standard hydraulic components

HR EVO 290 - 350 - 390
use and maintenance manual
8- Heating chamber water probe
9 - Puffer-storage tank water probe
10- Level probe on pellet hopper
11- Serial connection
12- Pressure transducer
13- Door safety microswitch
Key:
1 - Membrane expansion tank
2 - System drain cock ½"
3 - Pressure relief valve
4 - Delivery pipe with connections 1"
5 - Hight efficiency circulating pump
6 - Return pipe with connection 1"
7 - Pressure transducer
8 - System filling connection ½"
9 - Boiler system air venting valve
10- Cap for thermal safety OPT