What To Do In Case Of Gas Accumulation - COMEM Relays R1 Manual De Instrucciones

Pneumatic testing by pneumatic valve
This is performed by injecting air using a pump (furnished
on request as an accessory kit), causing the oil level inside
the relay to drop down and actuate the alarm float.
Proceed as follows when using the kit:
• Remove plug (Fig. D/2), screw valve (Fig. D/3) and
relative nipple on relay valve (Fig. D/1)
• Remove cap (Fig. D/4), insert pump (Fig. D/5) using the
threaded connection and turn the lever to OFF, inject air
as necessary to activate internal mechanisms.
• To restore the oil level and simultaneously bleed out
internal air remove plug (Fig. D/7) and open ball cock
(Fig. D/6).
• After these procedures close cock (Fig. D/6) and plug
(Fig. D/7), remove pump (Fig. D/5) and relative
accessories (D/3) and (Fig. D/4) and close valve (Fig.
D/1) using plug (Fig. D/2).
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2
7
6
Figure D
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1
7
What to do in case of
gas accumulation
In case of alarm, the gas should be checked immediately
to determine the cause of the fault and avoid additional
damages. To this end, withdraw the gas from the relay and
analyze it. For gas sampling and transport it is recom-
mended to use the "Gas Sampling device" supplied by
COMEM .
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RELAYS R1