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On continuous pilot ignition models (BJVT), if the water temperature is below the limit setting, the ignition module opens the main gas valve, and the main burners ignite.
Operation will continue on all ignition systems until either the wall setting thermostat is satisfied or the
When the room temperature falls below the wall thermostat setting, the cycle repeats.
Note: When equipped with a pump delay option, the pump runs for a short time after the burners turn off and the damper closes.
7.2Start-up
7.2.1 Filling the System
NOTE: It is strongly recommended that the system be cleaned and flushed to remove scale, oil, paste, flux, etc., before the system is filled.
It is crucial to the efficient operation of the system that all air be removed from the circuit. For this reason, an air scoop and vent should be located close to the boiler outlet, and there should be a minimum distance between cold water feed and system purge valve.
1.When the system has been completely installed, close all air vents and open the makeup water valve. Allow the circuit to fill slowly.
2.Adjust the pressure to provide a minimum of 12 psi (82.7kPa) at the highest point in the circuit. If
apressure regulator is also installed in the line, adjust it to the same pressure.
3.Close all gate valves. Purge one circuit at a time as follows:
a.Open one circuit drain valve and let water drain out for at least 5 minutes. Be certain there are no air bubbles visible in the water stream before closing the drain valve.
b.Repeat this procedure for each circuit.
4.Open all gate valves after all circuits have been purged.
5.Run the system circulating pump for a minimum of 30 minutes with the boiler shut off.
6.Open all strainers in the system, and check for debris.
7.Recheck all air vents as described in Step 3 above.
8.Some expansion tanks require visual inspection of liquid level. If necessary, inspect the liquid level in the expansion tank. With the system full of water, and under normal operating pressure, to ensure proper water level in the expansion tank.
9.Start up boiler according to the procedures described in Section 7 and operate the system,
including the pump, boiler, and radiation units, for one hour.
10.Recheck the water level in the expansion tank, if necessary. If it exceeds ½ of the volume of the tank, open the tank drain and reduce the water level.
11.Shut down the entire system, and vent all radiation units and high points in the system.
12.Close the water makeup valve and check the strainer in the pressure reducing valve for sediment or debris. Reopen the water makeup valve.
13.Verify system pressure with the boiler pressure gauge before beginning regular operation.
14.Within 3 days of
15.In systems piped with
7.2.2 Boiler Start-up
WARNING
For your safety, when starting the boiler, keep your head and face well away from the burner area to prevent any risk of personal injury.
AVERTISSEMENT
Pour votre sécurité personnelle lorsque vous mettez l’appareil en marche, tenez votre tête et votre visage loin du brûleur pour éviter tout risque de blessure.
WARNING
Vent pipes, and heater tops get hot! These surfaces can cause serious burns. Do not touch these surfaces while the heater is in operation.
AVERTISSEMENT
Les tuyaux d’aération et le dessus de l’appareil deviennent chauds! Ils peuvent causer de graves brûlures. Ne touchez pas à ces surfaces lorsque l’appareil est en marche.
Caution
Do not use this boiler if any part has been under water. Immediately call a qualified service technician to inspect the heater and replace any part of the control system and any gas control which has been under water.
Attention
N’utilisez pas cet appareil s’il a été plongé dans l’eau, même partiellement. Faites inspecter l’appareil par un technicien qualifié et remplacez toute partie du systéme de contrôle et toute commande qui ont été plongés dans l’eau.