9.6 Deaeration Function
Control performs the Deaeration function at initial
Note
start and after a reset of a locking error and after
power up.
Before starting boiler deaeration function must be performed.
Rotate black cap on deaerator, located inside the boiler, counter
clockwise to ensure aerator is open. See Figure 9-3.
• When power is supplied to the boiler Deaeration function
starts.
• Display shows 17 (Deaeration) and water pressure
(Psi). See Figure 9-4.
• Boiler pump will run on and off for up to 10 minutes.
This will purge air from the system.
• The burner will switch on for a few seconds to verify
increasing temperature on flow/return sensors.
• Boiler is ready to start in standard operation.
Repeat Deaeration function at least 3 times switching boiler on
off using
button.
Manually operated purge valve can also be performed by using
purging valve on top of the heat exchanger.
9 - START UP PROCEDURE
FIGURE 9-3 AERATOR
FIGURE 9-4 Deaeration Function Display Readout
Pump OFF
FIGURE 9-5 Manual Deaeration Valve - Top Of Heat
Exchanger
Closed Position
52
Purge Valve
Aerator
Pump ON
Open Position
PN 240011654, Rev. J [01/31/2020]