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9.3 System Start Up
Follow all codes and regulations when filling the boiler.
Use drain taps to allow system to completely drain.
Thoroughly flush the heating system before boiler is connected and again after first heating.
• Boiler is fitted with automatic air vent positioned on pump Vent and is fitted with adjustable sealing cap. See Figure 9-1.
• Open central heating flow and return valves. Spindle is flat in-line with valve.
• Open fill point valve on filling system until water begins to flow. To aid venting boiler drain may be open until water flows out.
Close drain as soon as water appears.
• 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 hot water taps. Allow water to flow until no air is present. Turn off taps. See
page 4- Physical Data and section 2.7 Operational Features.
9.4 Fill Condensate Trap with Water
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.
• To fill the condensate trap pour water into exhaust vent until water begins to flow through the siphon.
• Visually inspect the siphon to ensure it is full with clean water.
• During operation check condensate trap to ensure it draining properly.
Sensors used for this boiler are proprietary to the manufacturer. Use of after market sensors will
diminish boiler performance.
FIGURE 9-1 Condensate Drain
240012485 REV C [06/30/2019]
WARNING
!
NOTICE
Pour
approximately 1
cup of water into
flue way of boiler.
Condensate Drain
42
Air Vent
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