Aspen ASPN-320, Инструкция по установке, эксплуатации и обслуживанию

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All condensate which forms in the boiler or vent system passes through the heat exchanger and out of a bottom drain port
which is connected to the field-installed condensate trap. This trap allows condensate to drain from the heat exchanger while
retaining flue gases in the boiler. This trap is an integral part of the boiler but must be connected to a drain pipe as shown
in Figure 7.48. A schedule 40 ¾” PVC elbow is supplied for field connection. Note the following when disposing of the
condensate.
1. Attach condensate trap to heat exchanger condensate drain. Slide flexible tubing onto heat exchanger drain and use
provided gear clamp to create a seal.
2. Attach condensate trap bracket to bottom of boiler using provided screws.
3. Press flexible pipe into designated slots on bracket. Feed connector at end of float switch, through knockout (bushing
supplied for protection) and connect to wire harness (bottom left of control) Figure 7.47.
4. Condensate trap must be filled with water, prior to boiler start up to insure combustion products cannot escape from
operating boiler. To fill the trap, inject water in the amount of 1 cup (240 ml) through condensate trap connection. Do
not overfill the trap.
5. Construct condensate drain line extension using Schedule 40 ¾” PVC or CPVC. For condensate overflow and vent,
install tee with one side open to atmosphere downstream of condensate trap see Figure 7.48. Slope drain line minimum
¼ in/ft (21mm/m) downward toward drain.
6. Ensure plastic fitting with installed float switch is level and not tilted at an angle.
7. Condensate is slightly acidic (3.5-4.5). Do not use metallic pipe or fittings in the condensate drain line. Do not route the
drain line through areas that could be damaged by leaking condensate.
8. Some jurisdictions may require that the condensate be neutralized before being disposed of. Dispose of condensate in
accordance with local codes.
9. Do not route or terminate the condensate drain line in areas subjected to freezing temperatures.
10. If the point of condensate disposal is above the trap, it will be necessary to use a condensate pump to move condensate
to the drain. In such cases, select a condensate pump that is appropriate for use with condensing boilers. If overflow
from this pump would result in property damage, select a pump with an overflow switch and use this switch to shut down
the boiler. Alternatively, if heat is a necessity, use the overflow switch to trigger an alarm.
11. Do not attempt to move the trap from the location shown in Figure 7.48. Do not attempt to substitute another trap for the
one provided with the boiler.
Boiler Size
Maximum
Condensate Flow
GPH
320 3.5
399 4.4
WARNING
Asphyxiation Hazard. Failure to install the condensate drain in accordance with the above instructions
could cause flue gas to enter the building, resulting in personal injury or death.
NOTICE
To prevent damage to boiler from condensate backup, ensure condensate drain line is unobstructed
and not located in an area prone to freezing.
Boiler condensate is corrosive. Route condensate drain line in a manner such that any condensate
leakage will not cause property damage.
Some jurisdictions may require that condensate be neutralized prior to disposal.
Use materials approved by the authority having jurisdiction.
VII. Venting
J. Condensate Trap and Drain Line
J. Condensate Trap and Drain Line
Table 7.46: Maximum Condensate Flow