Harsco Industrial SC-2000, Инструкция по установке и эксплуатации

Страница: 32 / 69

Gas Fired Boiler
Harsco Industrial, Patterson-Kelley Technical Service 1.877.728.5351
32
High Gas Pressure Switch
The boiler is furnished with a high gas pressure switch, installed near the boiler’s main gas shutoff/control valve.
The operation of this switch must be checked as follows:
1. Before starting the boiler, close the downstream gas cock located inside the boiler’s enclosure.
2. Cycle the boiler on by generating a heat request.
3. Allow the boiler to proceed to ignition.
4. When the gas pressure exceeds the setting of the high gas pressure switch, the main burner will shut
off.
When the high gas pressure switch opens, the NURO touchscreen will display 10011:
“High Gas Limit”
. Even
after re-opening the downstream gas cock inside the boiler, 10011:
“High Gas Limit”
will remain on the NURO
display until the boiler is manually reset.
3.10 Initial NURO Control Setup & Adjustment
This manual covers basic NURO control setup and adjustment. For a basic walkthrough of the control setup,
please refer to the NURO Getting Started Guide which is helpful for basic boiler installations. For more complex
boiler applications and more information on the parameters, please refer to the NURO Advanced User’s Guide.
Startup
When the boiler is powered on, the NURO touchscreen will display an initial Startup Screen and Rep Information
Screen (
Figure 3.10a & Figure 3.10b)
. After a brief time, the Rep Information Screen will timeout automatically
which will load the Home Screen (
Figure 3.10c
). The Home Screen shows a snapshot of the boiler’s current
operating conditions:

Outlet (Supply) Temperature

Inlet (Return) Temperature

Exhaust Temperature

Firing Rate, etc.
Figure 3.10a: Startup Screen Figure 3.10b: Rep Information Screen Figure 3.10c: Home Screen