Ariston 500 STI UK Manual de instruções de instalação - Página 20
Procurar online ou descarregar pdf Manual de instruções de instalação para Aquecedor de água Ariston 500 STI UK. Ariston 500 STI UK 24 páginas. Unvented hot water storage cylinders
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4.3
T
C
-
HERMAL
UT
4.4
I
H
MMERSION
EATER
4.5
U
C
NVENTED
ONTROLS
4.5
T
HERMOSTATS
(
)
If the thermal cut-out has operated the cause must be found before resetting
OUT
S
(see section 5).
(
)
Descale the immersion heater(s) and remove any lime deposit from the
S
cylinder. Replace in reverse order. THIS DOES NOT APPLY TO COMFORT
MODELS.
Check controls as per the following:
1) Line strainer - with the water supply turned off remove screen from
strainer and clean of any detritus;
2) Expansion vessel - with the water supply turned off and taps open, check
expansion vessel pressure and top up as necessary;
3) Temperature & pressure relief valve - with the water supply turned on,
check manually by lifting the test lever/turning the test knob (ensure valve
closes after testing);
4) Expansion relief valve - check manually by turning the test knob (ensure
valve closes after testing);
5) Discharge pipes (D1) - from both temperature & pressure relief and
expansion relief valve for obstructions;
6) Tundish & discharge pipe (D2)- open either valve gradually to produce a
full bore discharge into tundish and D2 without any back pressure;
7) Pressure reducing valve - check that the correct outlet pressure is being
maintained by recording the pressure at an in-line terminal fitting i.e. tap.
Ensure that all thermostats adjusted for the correct temperature setting, this
should be between 60 and 65°C.
20