60
1
2
26
4
7
25
22
5
6
2
7
1
8
17
2
4
15
1
6
1
0
11
9
8
20
2
1
3
1
9
1
4
13
M
R
G
S3
23
12
28
29
1.4
OPERATING DIAGRAM
Fig..2
KEY
. 1. Cascade.supply.probe.
. 2. Hydraulic.compensator
. 3. Thermometer.
. 4. Cascade.return.probe
. 5. Condensation.drain.siphon
. 6. Gas.valve
. 7. 4.5.BAR.safety.valve
. 8. Fan
. 9. Heating.probe.(SM)
.10. Safety.thermostat.95°C
.11. Exhaust.thermostat
.12. Primary.exchanger
.13. Diaphragm
.14. Differential.pressure.switch
.15. Water.pressure.transducer
.16. Air.escape.valve
.17. Check.valve
.18. Distributor.
.19. 0-10.BAR.pressure.gauge.with.tap
.20. Water.pressure.switch.min.
.21. Safety.thermostat.100°C
.22. 3-way.drain.tap
.23. System.supply.tap
.24. Single.module.drain
.25. Gas.tap
.26. 8.litre.expansion.tank
.27. 5.BAR.safety.valve
.28. Water.trap.frost.sensor
.29. Water.pressure.switch.max.
FIXTURES
M. ..System.supply
R. . System.return
G. . Gas
S3.. Condensation.drain