GOLD CGi
7a Start-up — preparation (continued)
Fill the system with water
1.Close manual and automatic air vents and boiler drain cock.
2.Fill to correct system pressure. Correct pressure will vary with each application. Typical cold water fill pressure for a residential system is 12 psi.
3.Purge air from system:
a.Connect a hose to the purge valve (see drain valves, item 6, in suggested piping diagrams on pages 23 through 27, Figure 18 through Figure 23). Route hose to an area where water can drain and be seen.
b.Close the boiler or system isolation valve between the purge valve and fill connection to the system.
c.Close zone isolation valves.
d.Open
e.Open purge valve.
f.One zone at a time, open the isolation valves. Allow water to run through the zone, pushing out the air. Run until no noticeable air flow is present. Close the zone isolation valves and proceed with the next zone. Follow this procedure until all zones are purged.
g.Close the
h.After the system has operated for a while, eliminate any residual air by using the manual air vents located throughout the system.
i.If purge valves are not installed in system, open manual air vents in system one at a time, beginning with lowest floor. Close vent when water squirts out. Repeat with remaining vents.
4.Open automatic air vent
Inspect system water piping
After filling the boiler and system with water, inspect all piping throughout the system for leaks. If found, repair immediately. Repeat this inspection after the boiler has been started and the system has heated up.
Leaks must be repaired at once.
Failure to do so can damage the boiler, resulting in substantial prop- erty damage.
Do not use petroleum-based cleaning or sealing compounds
in boiler system. Severe damage to boiler will occur, resulting in sub- stantial property damage.
Inspect base insulation
The boiler contains ceramic fiber and fiberglass materials. Use care when handling these materials per instructions on page 68 of this manual. Failure to comply could result in severe personal injury.
Failure to replace damaged insu-
lation or reposition insulation can result in a fire hazard, causing severe personal injury, death or substantial
5.Open other vents:
a.Starting on the lowest floor, open air vents one at a time until water squirts out.
b.Repeat with remaining vents.
6.Refill to correct pressure.
property damage.
Check to make sure base insulation is secure against all four sides of the base. If insulation is damaged or displaced, do not operate boiler. Replace or reposition insulation.
Part Number | 33 |
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