Harsco Industrial C1500H Installation & Owner's Manual page 36

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MACH Gas Fired Boiler
The boiler condensate trap has an inlet for draining the vent condensate. But, the vent condensate can be run
separately if needed.
As indicated in above, condensate can be collected from the vent either, horizontally or vertically. The need for the
vent drain is to reduce or eliminate the condensate from returning back into the boiler from the vent system.
The vent drain should be located as close as possible to the boiler. Either location above is acceptable. Once the
condensate from the boiler and the drain have been piped together it should then be looped or trapped to prevent
vent gases from escaping, then piped into a neutralization device. If the vent drain is piped into the boiler drain
trap(supplied) the 4" trap is not needed. Also if the neutralization device is trapped the 4" trap is not needed.
3.7.3 Flushing and Filling
Water Quality
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The MACH boiler heat exchanger is made of an aluminum alloy. All heat exchangers require proper water conditions
to remain efficient and function properly. For information log on to our website: www.harscopk.com for Multi-Metal
Systems Water Quality Standards information as this applies to the warranty of your heat exchanger.
NOTICE! Glycol or other treatment chemicals added to the system must be certified by the chemical manufacturer for
use in multi-metal systems that include cast aluminum boilers.
NOTICE! Under no circumstances should petroleum based cleaning or sealing compounds be used in the boiler
system.
NOTICE! Under no circumstances should the hydronic system be flushed while the boiler is attached to the system
since the debris or corrosion products could accumulate in the boiler and plug the boiler heat exchanger.
NOTICE! If the piping system attached to this unit will be chemically cleaned, the boiler must be disconnected from
the system and a bypass installed so that the chemical cleaning solution does not circulate through the boiler.
Following chemical cleaning, the system should be thoroughly rinsed to remove cleaning agents prior to reconnecting
the boiler to the system.
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