Weil-McLain Series 2 Manual page 104

® S
ERIES
Maintenance
Cleaning the heat exchanger WATER
SIDE, when required
1. Isolate the boiler from the heating system.
2. Obtain Sentinel X400 cleaner from Weil-McLain. Follow
instructions supplied with the cleaner to clean the boiler
heat exchanger.
Use ONLY the cleaning product available from
Weil-McLain, Sentinel X400. See the Repair Parts
section at the end of this manual for ordering
information.
Using other cleaning materials or methods could
cause permanent damage to the boiler heat
exchanger.
Inspect the heating system water. If there is
evidence of sediment or corrosion, the boiler must
be isolated from the system. The system must then
be thoroughly cleaned to remove all sediment.
Isolated the cause of the system corrosion and
correct the problem(s) before placing the boiler
back in service.
Failure to comply could result in severe personal
injury, death or substantial property damage.
Che cking the heat exchanger-to-
condensate dish seal
1. Remove the jacket door.
2. Place a container under the boiler for drainage.
3. Disconnect the fl exible condensate drain tube from the
condensate drain piping so it's outlet end is free to move.
4. Move condensate bracket and loosen the condensate trap
upper ferrule (see Figure 110 ) and rotate the trap assembly
so the fl exible drain tube can be lifted as shown. Tighten
the upper ferrule when in position.
The boiler is shipped with a 24-inch fl exible tube.
If the tube has been cut shorter, attach a ¾" PVC
coupling to the fl exible tube with tape. Then use
a length of ¾" PVC pipe long enough to locate
the funnel as directed.
5. Insert a funnel into the open end of the fl exible tube. Wrap
the funnel-to-tube joint with tape so it will be watertight.
6. Lift the funnel up as shown in Figure 110 so it is from 6 to
10 inches above the bottom of the boiler.
7. Pour one gallon of water (no more than one gallon) slowly
into the funnel. Use tape or cord to secure the funnel and
fl exible tube up in position so the funnel remains 6 to
10 inches above the bottom of the boiler.
8. Use a fl ashlight and mirror to inspect around the perimeter
of the heat exchanger where it joins the condensate dish
(see Figure 111 ).
9. There must be no signs of water leakage anywhere around
the heat exchanger-to-condensate dish joint.
104
2
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G
AS FIRED WATER BOILER
(continued)
— Boiler Manual
Figure 110 Adding water to heat exchanger for condensate
dish seal check
Fun nel
Upper ferrule
If there are signs of leakage, wipe the area with
a clean rag to ensure there is a leak and not just
splashed water. If the leak continues, the boiler
must not be operated until a new sealing ring is
obtained. Follow the instructions supplied with the
sealing ring kit to disassemble boiler components
as necessary to access and replace the seal.
Figure 111 Inspect the heat exchanger-to-condensate
dish joints
Inspect joints
10. If there are no indications of leakage, the seal is acceptable.
11. Remove the funnel, drain the water into the container below,
return the condensate trap assembly and bracket to its
original position, and re-connect the fl exible drain tube to the
condensate drain tubing.
Flexible conden
sate
drain tube
Part number 550-142-190/1218