Camus Hydronics ADVANTUS AVH 500, Installation, Operation And Service Manual

Page: 85 / 104

78
Boiler Operational Checks
1.
Turn the boiler main power switch to the “ON” position.
2. Program the adjustable points.
3.
Turn the switch to the “ON” position to start boiler operation.
4. Push the resets for low water level, high water temperature and alarm.
5. Install a manometer on the gas supply to the boiler and verify minimum gas supply pressure as the burner fires at 100% of rated
input.
6. Verify operation of safeties as necessary (low water cut-off, high limit, gas pressure, blocked flue switch, etc).
7. With the firing valve closed allow the boiler to proceed through 3 ignition attempts. After the third failed ignition attempt the boiler
will proceed to an Ignition Error fault. After this has been verified, recycle power on the boiler and open the firing valve.
8. Once the boiler is running and the flame has stabilized, open the UV Scanner wires at an interconnection point in the harness.
Main flame must extinguish within 4 sec. If flame does not extinguish replace the ignition control.
Boiler Operation
1. Appliance should begin the start-up process for the sequence of operation.
2. The boiler will fire down to approximately 20% on initial start-up and adjust input as required to meet system demand.
3. Based on system demand, the appliance will modulate accordingly.
4. As system demand is satisfied, the burner will cycle off and the combustion air fan will decelerate at a pre-programmed rate
before the appliance shuts down.
AV500
– AV2500