Weil-McLain CGi Instructions d'exploitation télécharger pdf (Page 11)

User’s Information Manual

Part Number 550-110-592/0709

Operate boiler relief valve

❏ Service every 6 months . . . . . . . . .

To avoid water damage or scalding

due to valve operation, a metal

discharge line must be connected

to relief valve outlet and run to a

safe place of disposal. This discharge

line must be installed by a qualiﬁed

heating installer or service technician

in accordance with the instructions

in the Boiler Manual.

Th e di scharge lin e mu st be

terminated so as to eliminate

possibility of severe burns should

the valve discharge.

1. Before proceeding, verify that the relief valve outlet

has been piped to a safe place of discharge, avoiding

any possibility of scalding from hot water.

2. Read the boiler pressure/temperature gauge to make

sure the system is pressurized.

3. Lift the relief valve top lever slightly, allowing water

to relieve through the valve and discharge piping.

4. If water ﬂows freely, release the lever and allow

the valve to seat. Watch the end of the relief valve

discharge pipe to ensure that the valve does not

weep after the line has had time to drain. If the valve

weeps, lift the seat again to attempt to clean the

valve seat. If the valve continues to weep afterwards,

contact your qualiﬁed service technician to inspect

the valve and system.

5. If water does not ﬂow from the valve when you

lift the lever completely, the valve or discharge line

may be blocked. Immediately shutdown the boiler,

following the instructions on the inside jacket top

LightingInstructions. Callyourqualiedservice

technician to inspect the boiler and system.

Figure 9 Gauge glass

Clean gauge glass

❏ Service periodically continued . . . . . . .

Boiler pressure must be low to eliminate potential of

severe burns.

Normal waterline on a steam boiler is halfway up gauge

glass.SeeFigure9.Cleanwhenneeded.

1. Closelowergaugecock.

2. Open pet cock.

3. Open lower gauge cock and allow a small amount

of water to ﬂush out through open pet cock.

4. Closepetcock.

5. Open lower gauge cock.

6. If gauge glass breaks, close both gauge cocks and call

a qualiﬁed service technician to replace gauge glass.

Do not replace with thin glass tubing.

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Weil-McLain CGi Instructions d'exploitation Page 11

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