Toshiba HWS-P1105HR-E, Руководство по обслуживанию

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9 Expansion vessel
1) Perform the step 1-1, step 5, step 6-1
2) Remove the fixed band of the expansion vessel.
(ST1T Ø4 × 8, 4 screws)
3) Remove the expansion vessel connection.
When installing the expansion vessel, please attach
the waterproof seal at the water connection.
10 Overpressure
preventive valve
1) Perform the step 1-1, step 5, step 6-1
2) Remove the quick fastener.
3) Remove the Overpressure preventive valve.
11 Air vent valve
1) Perform the step 1-1-1), 2), 3), step 6-1.
2) Remove the air vent valve.
No. Exchange parts name Work procedure Remarks
To replace a water circuit part, first close the water
supply source valve and the valve of water pipe
connected to the hydro unit.
After the expansion vessel replacement repair,
open the water supply source valve and water
piping valve to pass water through the hydro unit,
and check that the expansion vessel connection has
no water leakage.
Expansion vessel Expansion vessel
Expansion vessel Expansion vessel
Fixed band Fixed band
Expansion vessel
Expansion vessel
Fixed band
When installing the
expansion vessel, please
attach the waterproof seal
at the water connection.
To replace a water circuit part, first close the water
supply source valve and the valve of water pipe
connected to the hydro unit.
The Overpressure preventive valve connection
uses an O ring for water seal. Be careful not to
scratch the O ring; otherwise, water leakage may
occur.
After the Overpressure preventive valve
replacement repair, open the water supply source
valve and water piping valve to pass water through
the hydro unit, and check that the Overpressure
preventive valve connection has no water leakage.
Quick fastener
Overpressure
preventive valve
Overpressure preventive valve
connecting hose
To replace a water circuit part, first close the water
supply source valve and the valve of water pipe
connected to the hydro unit.
The Air vent valve connection uses an O ring for
water seal. Be careful not to scratch the O ring;
otherwise, water leakage may occur.
After the air vent valve replacement repair, open the
water supply source valve and water piping valve to
pass water through the hydro unit, and check that
the air vent valve connection has no water leakage.
Air vent valve Air vent valve Air vent valve