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59Part number 550-141-850/0699
• Installation • Start-Up • Parts • Maintenance
Water piping
1. Check the boiler interior piping and all system piping for signs of leaks.
2. Repair any leaks before proceeding.
Eliminate all system leaks. Continual fresh makeup water will reduce
boiler life. Minerals can build up in sections, reducing heat transfer, overheating
cast iron, and causing section failure.
Do not use petroleum-based cleaning or sealing compounds in boiler
system. Severe damage to boiler will occur, resulting in substantial property
damage.
Condensate drain system
1. Inspect the condensate trap hose for deterioration.
2. Check for any obstructions in the trap hose by squeezing the tubing.
3. If there is any doubt the condensate drain system is flowing freely, remove the clamp and hose
from the bottom of the vent starter tee. Slide a funnel outlet into the trap hose and pour water
through. It should exit at the termination of the condensate drain line.
4. If the owner’s monthly inspection of the condensate drain system has indicated a tendency for
the trap to run dry, install a condensate drain line check valve kit, available through
your Weil-McLain distributor. See installation instructions for check valve kit in this manual
section.
Annual start-up —
inspect
Annual start-up —
start-up
Start-up procedure
1. Follow the instructions in manual Section VII.
2. Verify cold fill pressure is correct and that fill system is working properly.
3. Verify antifreeze level (if used) is at the right concentration and that inhibitor level is
correct.
4. Check gas piping, per manual Sections V and VIb, verifying no indications of leakage and
all piping and connections are in good condition.
5. Read the Lighting instructions (Figure 25 or 26 of this manual or on boiler label) applying
to the boiler (ensuring the instruction applies to the gas valve installed in the boiler).
6. Start the boiler following the Lighting instructions and manual Section VIId.
Figure 27 Blower motor
Oil
cup
Oil cup
85037
Annual start-up —
service
Blower motor (Figure 27)
1. With boiler power OFF, place a few drops of S.A.E.
20 motor oil in each of the two oil cups.
Use only S.A.E. 20 motor oil to
lubricate the blower motor. Do not
use universal household oils. Motor
could be damaged, resulting in
possible severe property damage.
Oiled-bearing circulators
1. Both of the circulators installed in the boiler are water-
lubricated. No oiling is required.
2. Check other circulators in the system. Oil any
circulators requiring oil, following circulator
manufacturer’s instructions. Over-oiling will damage
the circulator.