Maintenance; Spare Parts - OSO SOLARCYL Installation Manual

It is recommended that annually a competent person
(a) Inspects and cleans the line strainer.
(b) Checks the operation of the expansion relief valve and temperature & pressure relief valve.
(c) Recommissions the cylinder in accordance with the instructions on page 4.
Pressure reducing valve
1. Isolate the cold water supply.
2. Unscrew the retaining nut of the valve.
The complete operating mechanism,
including the strainer can be removed.
3. Clean the filter mesh and the cartridge
under running water.
4. Replace cartridge ensuring that strainer is
correctly located and reassemble the unit.
Pressure Reducing Valve cartridge and
strainer Part No. 100 510 2.1 Bar.
Tundish
Install theTundish in a vertical position within a maximum of 500mm from the temperature and
Pressure Relief Valve drain connection. Ensure the expansion relief pipework discharges through the
tundish. Tundish pipework must be 22mm with a minimum vertical length of 300mm below tundish.
Maximum permitted length of 22mm pipework is 9m. Each bend or elbow is equivalent to 0.8m of
pipework.
All pipework must have continuous fall and discharge in a safe, visible position. If any doubt, refer to
Building Regulation G3.
Pressure reducing valve
Cartridge and strainer 2.1 bar
Part No. 510501 (green dial)
Part No. 100510 (blue dial)

MAINTENANCE

1. Isolate the cold water supply.
2. Unscrew blue expansion relief headwork
from valve body.
3. Clean valve seat face and seating - do not
scratch or damage either seat face or
seating.
4. Refit in reverse order. Do not overtighten
Expansion valve cartridge and seat Part
No. 214009 8.0 Bar. Complete Expansion
Valve Part No. 510 505 8.0 Bar.

Spare Parts

-6-
Expansion relief cartridge