Weil-McLain 550-141-850/0599 Annual start-up— service, Annual start-up— inspect, Water piping

•Installation • Start-Up • Parts • Maintenance

Annual start-up — inspect

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 — 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.

Figure 27 Blower motor

Oil cup

Oil cup

85037

Annual start-up —	Start-up procedure
start-up	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.

Part number 550-141-850/0699 59