1-15
INSTALLATION
SL 30-175, SL 45-260 MODULATING GAS BOILERS
Figure 19: Condensate neutralization tank
Figure 18: Condensate trap drainage
WARNING
If condensates are to be
discharged into building
drain piping materials that
are subject to corrosion, a
neutralization package must
be used.
CAUTION
When a condensate
neutralization package
is installed, the pH of the
condensate discharge must
be measured on a regular
schedule to ensure the
neutralizing agent is active
and effective.
Figure 17: Condensate trap
disassembly for cleaning
TO
DRAIN
FACTORY SUPPLIED
CONDENSATE TRAP
CONDENSATE DRAINAGE
Free flow of condensate from
venting system and pressure
vessel must be maintained at all
times. Trap and condensate drain
piping must be accessible to allow
regular inspection and cleaning.
FLUE GAS
EXHAUST
CONDENSATE AND
RAIN WATER
FLOWS BACK FROM
VENTING SYSTEM
CONDENSATE HOSE AND DRAIN
PIPING TO SLOPE TOWARD
DRAIN AND BE SECURED TO
PREVENT ACCIDENTAL
DISASSEMBLY.
ATTACH
HOSE TO
DRAINAGE
PIPING
DRAIN MATERIALS SUBJECT TO
CORROSION MUST BE PROTECTED BY
ACID NEUTRALIZATION
WARNING - “Risk of damage to
appliance” All condensate
discharge lines must be at a lower
elevation than the condensate water
line of the appliance.
CONDENSATE WATER LINE
IBC
SL 30-175
SL 45-260
BOILER
IBC
WARNING - “Risk
of damage to
appliance”
Ensure rainwater
is prevented from
entering air intake
piping.
TO DRAIN
1 1/2” FIP
OUTLET
1 1/2” FIP
INLET
MAINTENANCE DETAILS FOR
NT20 CONDENSATE
NEUTRALIZATION TANK
Refer to manufacturer’s maintenance
instructions for other makes and
models of condensate neutralization
tanks
WARNING - “Risk of damage to
appliance” Neutralization tank inlet
and discharge must be at a lower
elevation than the condensate water
line of the appliance.
NOTE - Access to the discharge
before the drain is necessary for
proper maintenance in order to check
the effectiveness of the neutralizing
agent. A simple pH test should be
performed annually to ensure
neutralizing agent is still effective. If
pH falls below 6.5 the neutralizing
material should be replaced.
The agent (limestone chips with a
minimum calcium carbonate content
of 85%) can be purchased from a local
supplier.
FLUE GAS
EXHAUST
CONDENSATE AND
RAIN WATER
FLOWS BACK FROM
VENTING SYSTEM
IBC
SL 30-175
SL 45-260
BOILER
IBC
Summary of Contents for SL 30-175
Page 76: ...NOTES...