Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
DHW Demand
Attach "U"gauge to outlet pressure test point
On / Off switch ON
On / Off switch ON
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Observe fan and "U"gauge
Expected sequence of events:
After approx 2 seconds fan runs and gauge shows approximately 8.5mb
After flame establishes gauge pressure rises to 13.4mbar.
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Click on your observation:
1. FAN RUNS BURNER IGNITES AND ESTABLISHES
2. FAN RUNS SPARKING DOES NOT OCCUR
3. FAN RUNS SPARKING OCCURS BUT BURNER DOES NOT LIGHT
4. BURNER IGNITES BUT DOES NOT ESTABLISH
5. BURNER IGNITES BUT BAFFLES OUT OR LIFTS OFF
Expected sequence of events:
After approx 2 seconds fan runs and gauge shows approximately 8.5mb
After flame establishes gauge pressure rises to 13.4mbar.
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Click on your observation:
1. FAN RUNS BURNER IGNITES AND ESTABLISHES
2. FAN RUNS SPARKING DOES NOT OCCUR
3. FAN RUNS SPARKING OCCURS BUT BURNER DOES NOT LIGHT
4. BURNER IGNITES BUT DOES NOT ESTABLISH
5. BURNER IGNITES BUT BAFFLES OUT OR LIFTS OFF
