Weil-McLain Gold CGs-4E Instructions d'exploitation télécharger pdf (Page 41)

Part number 550-110-282/1108

GOLD

CGs-4E Gas-Fired Water Boiler — Boiler Manual

 Safetyreliefvalvesshouldbereinspected AT LEAST ONCE EVERY

THREE YEARS

, by a licensed plumbing contractor or authorized

inspection agency, to ensure that the product has not been affected by

corrosive water conditions and to ensure that the valve and discharge

linehavenotbeenalteredortamperedwithillegally.Certainnaturally

occurring conditions may corrode the valve or its components over

time,renderingthevalveinoperative.Suchconditionsarenotdetect-

able unless the valve and its components are physically removed and

inspected. This inspection must only be conducted by a plumbing

contractor or authorized inspection agency — not by the owner. Failure

to reinspect the boiler relief valve as directed could result in unsafe

pressure buildup, which can result in severe personal injury, death or

substantial property damage.

Following installation, the valve lever must be operated AT LEAST

ONCE A YEAR

toensurethatwaterwaysareclear.Certainnaturally

occurring mineral deposits may adhere to the valve, rendering it inop-

erative. When manually operating the lever, water will discharge and

precautions must be taken to avoid contact with hot water and to avoid

waterdamage.Beforeoperatinglever,checktoseethatadischarge

line is connected to this valve directing the ﬂow of hot water from the

valve to a proper place of disposal otherwise severe personal injury

may result. If no water ows, valve is inoperative.Shutdownboiler

until a new relief valve has been installed.

Boiler relief valve

1. Inspect the relief valve and lift the lever to verify ﬂow as in the following warnings,

excerptedfromareliefvalvemanufacturer’swarninglabel.Beforeoperatinganyre-

lief valve, ensure that it is piped with its discharge in a safe area to avoid severe scald

potential.ReadmanualSection3 before proceeding further.

2. Afterfollowingtheabovewarningdirections,ifthereliefvalveweepsorwillnotseat

properly,replacethereliefvalve.Ensurethatthereasonforreliefvalveweepingisthe

valve and not over-pressurization of the system due to expansion tank waterlogging

or undersizing.

Figure 23 Relief valve, typical

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Weil-McLain Gold CGs-4E Instructions d'exploitation Page 41