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Part number 550-100-260/0520
135
ECO
®
Tec
GAS-FIRED WATER BOILER – 80/110/150/199 BOILER MANUAL
Cleaning/maintenance for Domestic Water Inlet & Outlet Manifolds
12. Open valves of the domestic cold water inlet and the domestic
hot water outlet. Flush water through system by opening a
fixture. Check all water joints and ensure no leaks are present.
Cleaning and maintenance for Domestic
Water Outlet Manifold (Refer to Figure 122
and Figure 123)
1. Follow “To turn off Gas Appliance” instructions on boiler and
Operating instructions and procedures 4 and 5 on page 133
2. Slide actuator retaining clip out of the slot, see Figure 122.
3. Remove the actuator from Domestic Water Outlet Manifold
while keeping wire attached.
4. Remove spacer using 28mm (1 1/8”) wrench, removing the
sanitary shutter with it.
5. Remove heating cartridge using 22mm (7/8”) wrench
6. Clean components for both the Heating Cartridge and the
Sanitary Shutter. Ensure springs are working properly by
compressing them and shut off valves and valve seats are in
good condition. If components are damage or have excessive
wear they must be replaced.
7. Check both O-rings and seats to make sure they are
undamaged. Replace O-rings if necessary. Clean O-ring
seats and then apply a small amount of non-petroleum
grease afterwards.
8. Apply a small amount of non-petroleum grease to the tip
of the rod of the sanitary shutter, and reassemble it with the
spacer.
9. Reinstall shutter/spacer into the Domestic Water Outlet
Manifold, but do not tighten part.
Domestic Water Outlet Manifold
components
10. Screw heating cartridge back into the Domestic Water Outlet
Manifold, and tighten it down to 8.9 lbs-ft +/- 1.0 lbs-ft.
11. Tighten spacer down to
8.9 lbs-ft +/- 1.0 lbs-ft.
12. Reinstall actuator and actuator retaining clip back onto the
Domestic Water Outlet Manifold.
13. The Domestic Hot Water temperature sensor is located in
this manifold. Please refer to page 115 section “Checking
temperature sensors” to verify proper working condition
14. Open the valves of CH system supply and return and fill the
boiler with water. Purge all air from system. Check all water
joints and ensure no leaks are present.
Domestic Water Outlet Manifold
components disassembled
Heating
Cartridge
Spacer
Outlet Manifold
Actuator
Sanitary shutter
(Not pictured)
Actuator
Clip
Actuator
Clip
Actuator
Spacer
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