Thermal Solutions EVS SERIES Installation, Operating And Service Instructions page 64

Evs series modulating boiler
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Figure 22a: DB&B w/POC Gas Train (500-750)
DB&B W/POC - MAIN AND PILOT
Key
Description
No.
3. Main and Pilot Gas Train
3A
Main Gas Valve Body 1" NPT
Manual Gas Valve with Pilot
3B
Tapping, 1" NPT
Actuator/Regulator Ratio
3C
Valve, Siemens SKP75, (max
5psi), DB&B w/POC
Actuator, Siemens SKP15,
3D
DB&B w/POC
3E
Manual Gas Cock, 1/4"
3F
Pilot Gas Regulator
3G
High Gas Pressure Switch
3H
Low Gas Pressure Switch
3I
Normally Open Vent Valve
(Quantity) Part Number
EVS-500
EVS-750
(2) 816634041
(2) 806603055
(1) 81663409
(1) 81663407
(3) 822758
(1) 822702
(1) 80160333
(1) 80160332
(1) 81660262
64

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