MAINTENANCE
5-8 HPR400XD Manual Gas Instruction Manual
N
2
/N
2
process
Gas console AC valve driver board – LEDs
Valve
location
Gas console Off-valve
LED
number
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Preflow
SV6 SV8 SV11 SV17 SV18
Cutflow
SV6 SV8 SV11 SV14 SV16 SV19
Marking process
The valves that are active when marking are represented by the tables below. The active valves in the gas console will
differ, depending on what process was used before marking.
Valves active when changing from a non-fuel gas process
N
2
/N
2
process
Gas console AC valve driver board – LEDs
Valve
location
Gas console Off-valve
LED
number
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Preflow
SV6 SV8 SV11 SV17 SV18
Cutflow
SV6 SV8 SV11 SV14 SV16 SV19
Valves active when changing from a non-fuel gas process
Ar/Ar
process
Gas console AC valve driver board – LEDs
Valve
location
Gas console Off-valve
LED
number
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Preflow
SV6 SV8 SV11 SV17 SV18
Cutflow
SV6 SV8 SV11 SV14 SV16 SV19
Ar/Air
< 25 or
> 35
amps
Gas console AC valve driver board – LEDs
Gas console Off-valve
LED
number
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Preflow
SV1 SV5 SV8 SV11 SV17 SV18
Cutflow
SV1 SV5 SV8 SV11 SV14 SV16 SV19
Ar/Air
25 to 35
amps
Gas console AC valve driver board – LEDs
Gas console Off-valve
LED
number
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Preflow
SV1 SV5 SV7 SV11 SV17 SV18
Cutflow
SV1 SV5 SV7 SV11 SV14 SV16 SV19