Fill And Pressure Test; Drain And Remove Fittings; Perform Hydrostatic Pressure Test - Weil-McLain Gold GV Manual

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Prepare boiler — pressure test
Perform hydrostatic pressure
test
Pressure test boiler
(except as noted below) or electrical supply.
Prepare boiler for test (Fig. 7)
Connect a hose from water supply to fill and drain
boiler for hydrostatic test. Hose is not included with
boiler.
Connect hose to boiler drain valve. Make sure hose
can also be used to drain boiler after test.
Remove 1" nipple, 1" tee, bushing and pressure/
temperature gauge from accessory bag. Pipe to
boiler supply connection as shown. Use pipe dope
sparingly.
Connect a nipple and shutoff valve to system supply
connection on the 1" tee. This valve will be used to
bleed air during the fill. Valve and nipple are not
included with boiler.
Connect a nipple and shutoff valve to system return
connection at circulator flange. This valve will be
used to bleed air during the fill. Valve and nipple
are not included with boiler.
Install a ¾" pipe plug in the relief valve opening,
top of the rear boiler section, as shown. Plug is not
included with boiler.

Fill and pressure test

1. Connect fill water supply through drain valve (item
).
2
2. Fill boiler with water (be sure bleed valves at
are open).
5
3. When water flows from bleed valves, shut off water
at drain valve.
24
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GOLD GV Water Boiler — Series 4 GOLD GV W GOLD GV W ater Boiler — Series 4 ater Boiler — Series 4
attaching water or gas piping
before
4. Close bleed valves.
5. Slowly reopen drain valve (item
of not more than 45 psi is reached on the pressure
gauge.
6. Test at no more than 45 psi for no more than 10
minutes.
Do not leave boiler unattended
A cold water fill could expand and
cause excessive pressure, resulting
in severe personal injury, death or
substantial property damage.
7. Make sure constant gauge pressure has been
maintained throughout test. Check for leaks. Repair
if found.
Leaks must be repaired at once
Failure to do so can damage boiler,
resulting in substantial property
damage.
Do not use
cleaning or sealing compounds in
boiler system. Severe damage to
boiler will occur, resulting in
substantial property damage.

Drain and remove fittings

1. Disconnect fill water hose from water source.
2. Drain boiler at drain valve or out hose, whichever
provides best access to drain. Close drain valve and
and
4
remove hose after draining.
3. Remove nipples and valves at
will remain for use in the system piping.
4. Remove plug (item
) until test pressure
2
petroleum-based
4 and 5 unless they
) from relief valve tapping.
6
Part number 550-141-856/0703
.
.