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In the following diagram the leak test is carried out by using 2 auxiliary valves.
The MTC10 controls valves V3 and V4. The Burner Control controls valves V1 and V2.
The following checks are performed before starting the burner:
1. Leak test V1 and V3
2. Leak test V2 and V4
During the test, the gas can be discharged into the combustion chamber or, if this is not allowed, it must be released outside
in a safe place. Once the test is passed, the Burner Control opens V1 and V2.
Valve Control
Madas Technical Manual - 9|9.4 - REV. 0 of 8
EXAMPLE 2
Electrical connections
21
Feb 2019
th
V1: NC safety solenoid valve
V2: NC work solenoid valve
V3: NC auxiliary valve
V4: NC auxiliary valve
P:
Pressure switch
T:
Thermostat
LP: Minimum pressure switch
: Test volume
P
: Low pressure switch
1
P
: High pressure switch
2
MTC10
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