Weil-McLain EG SERIES 6 GAS BOILER EG-35 User Manual

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Part Number 550-142-303/1120

PEG sEriEs 6

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EGH sEriEs 5 Gas-firEd boilErs — boilEr manual

Installing the relief valve

Install relief valve in tapping on top of boiler. See Table 4, page

10, for control tapping locations. See the tag attached to the relief

valve for manufacturer’s instructions.

Follow the steps below to avoid potential severe per-

sonal injury, death or substantial property damage.

• Wheninstallingthereliefvalve,ensurethatallconnec-

tions, including the valve inlet, are clean and free from

any foreign matter.

• Mountthereliefvalveonlyintheverticalposition,directly

connected to the tapping designated in the manual on top

of the boiler.

• Usepipecompoundsparingly,ortape,onexternalthreads

only.

• Donot use apipewrench!Usepropertypeand size

wrench on wrench pads only.

During operation, this valve may discharge large

amounts of steam and/or hot water. Therefore, to

reduce the potential for bodily injury and property

damage, a discharge line MUST be installed that:

• Isconnectedfromtheoutlettoasafepointofdischarge

with no intervening valve.

• Allowscompletedrainageofboththevalveandthedis-

charge line.

• Isindependentlysupportedandsecurelyanchoredsoas

to avoid applied stress as possible.

• Terminatesfreelytoatmospherewhereanydischargewill

be clearly visible and is at no risk of freezing.

• Is,overitsentirelength,ofapipesizeequaltoorgreater

than that of the valve outlet.

Use only schedule 40 metal pipe for discharge. (Do not

use schedule 80, extra strong or double strong pipe or

connections.) DO NOT CAP, PLUG OR OTHERWISE

OBSTRUCTDISCHARGEPIPEOUTLET!Ifdischarge

is piped upward, a condensate drain must be provided in

the elbow below the vertical pipe to prevent condensate

from returning into the valve. Failure to comply with these

instructions will cause a dangerous spray of hot water and

steam that would cause severe personal injury or death.

Figure 19 Connection to counter ﬂow steam piping

Connect piping – steam boilers (continued)

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Weil-McLain EG SERIES 6 GAS BOILER EG-35 Residential Gas-fired Boiler

User Manual - Page 18