47
FIGURE 9-1 Condensate Drain Assembly
150 Model shown (location similar in all sizes)
9.4 Fill Condensate Trap with Water
WARNING
Asphyxiation hazard! Fill condensate trap
before starting boiler to avoid combustion
products escaping boiler. Failure to follow these
instructions could result in death or serious
injury.
!
•
• Visually inspect the siphon to ensure it is full with
clean water.
• During operation check condensate trap to ensure it
drains properly.
Note
water at initial start up.
•
See Figure 9-1.
•
•
water appears.
• During initial system air purge open valve connected
to top left of heat exchanger. Open four (4) full
turns counterclockwise until steady stream of water
is witnessed. Close fully turning clockwise with no
tools needed. See Figure 9-1.
• Systems using radiators to remove air - Vent each
radiator in turn, starting with lowest in the system.
• It is IMPORTANT the pump is properly vented
to avoid running it dry and damaging its bearings.
Unscrew and remove cap from center of pump. Use
screwdriver. Rotate exposed spindle about half turn,
replace cap.
• Check operation of heating pressure relief valve. Pull
lever on top of valve upwards lifting the seat. This
will allow water to escape from system. Check water
is escaping from the system.
• Open cold water supply inlet valve. Turn on all
page 4 - Physical Data and section 2.7 Operational
Features.
9.3 System Start Up
Use drain taps to allow system to completely drain.
9 - START UP PROCEDURE
240013375 REV A, [07/01/2021]
Condensate Drain
Connection
Pour
approximately
1 cup of water
of boiler.
Air
Purge
Valve
Condensate
Tray
Air Vent
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