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63Part number 550-141-850/0699
• Installation • Start-Up • Parts • Maintenance
Service & maint. — special proceduresXd
Condensate drain line check valve kit
The service procedures listed in
Section
IXc of this manual must only
be performed by a qualified boiler
service technician. Failure to comply
could result in severe personal injury,
death or substantial property
damage.
1. If the owner finds that flue gases frequently leak from
the condensate trap hose, install the condensate drain
line check valve kit.
Under some circumstances a GV vent
system may not produce enough
condensate to keep the condensate
trap full of liquid. If the trap is not
full, small amounts of flue products
can be emitted into the boiler room
through the condensate drain line.
Contact a qualified service technician
to install a condensate drain line
check valve kit.
2. Obtain the kit from your Weil-McLain distributor
and follow the instructions included with the kit.
3. See Figure 31 for a typical installation of the check
valve on the condensate drain line.
Figure 31 Condensate drain line check valve
kit, installed — Refer to kit for
detailed instructions.
85032
Condensate drain line
check valve assembly