AHE Series 4 Direct Vent
User maintenance procedures continued
❑Monthly .....................
Check boiler piping
Visually inspect for leaks around piping, circulators, relief valve and other fittings. Immediately call a qualified service technician to repair any leaks.
Have leaks fixed at once by a qualified service technician. Continual fresh makeup water will reduce boiler life. Minerals can build up in sections, reducing heat transfer, overheating cast iron and causing equipment failure. Leaking water may also cause severe property damage.
Do not use
Check venting system
Failure to inspect the vent system as noted below and have them repaired by a qualified service technician can result in vent system failure, causing severe personal injury or death.
1.Visually inspect the gas vent system for any signs of blockage, leakage of joints or deterioration of the piping.
❑Monthly ...............
Check boiler relief valve
1.Inspect the boiler relief valve (see Figure 2) and the relief valve discharge pipe for signs of weeping or leakage.
2.If the relief valve often weeps:
•The expansion tank may not be working properly.
•Immediately contact your qualified service technician to inspect the boiler and system.
Check automatic air vents
1.See Figure 3.
2.Remove the cap from any automatic air vent in the system and check operation by depressing valve “B” slightly with the tip of a screwdriver.
3.If the air vent valve appears to be working freely and not leaking, replace cap “A”, twisting all the way on.
4.Loosen cap “A” one turn to allow vent to operate.
5.Have vent replaced if it does not operate correctly.
Figure 2 | Figure 3 |
Relief valve | Automatic air vent |
| A |
| B |
71036
6 | Part number |
