Hydrostatic Test Procedures; Completion Of Hydrostatic Test And Draining - Prestige Solo 110 Installation And Maintenance Manual

Unit Preparations
4. On the primary return connection pipe a 1"
x 1" x 1/2" tee fitting and the boiler drain
valve. The tee fitting and boiler drain valve
will not be removed after the completion of
test, so ensure adequate pipe dope is
applied.
5. Temporarily plug the tee fitting on the pri-
mary return using a 1" NPT plug. Use pipe
dope sparingly to allow removal of the plug
upon completion of the test.
6. Connect a hose to the boiler drain valve and
connect the other end to a fresh water sup-
ply. Ensure the hose can be used as a drain
hose upon completion of the test.

Hydrostatic Test Procedures

1. Open the manual air vent located on the 1/2
inch connection of the reducing tee locat-
ed at the top of the unit, as shown in Fig. 5
page 14, one full turn counter-clockwise.
2. Open the fresh water supply valve and then
open the boiler drain valve slowly to fill the
boiler with water.
WARNING
The boiler will fill quickly as the total
water volume is less than 3 gallons.
3. When the manual air vent begins to bleed
water, close the boiler drain valve.
4. Close the manual air vent and slowly
reopen the boiler drain valve until the test
pressure on the pressure gauge reaches a
maximum 30 psig.
WARNING
Do not pressurize the boiler and its com-
ponents above 30 psig. Damage to the
heat exchanger and the boiler compo-
nents could occur resulting in personal
i n j u ry, death or substantial pro p e rt y
damage.
5. Allow the test pressure to remain for 10
minutes.
WARNING
Do not leave the unit unattended while
p ressurized.
expand and cause excessive pre s s u re ,
resulting in severe personal injury, death
or substantial property damage.
6. Ensure constant gauge pressure has been
maintained throughout the 10 minute test.
Check for leaks at all joints. Repair if
found.
WARNING
Leaks must be re p a i red immediately
when detected. Failure to repair leaks
can damage the unit, resulting in sub-
stantial property damage.
7. Check continuity using a voltmeter across
the terminals of the LWCO device. The
contacts on the LWCO should be closed.
See Item 5 Fig. 23 page 57 for location of
the LWCO.

Completion of Hydrostatic Test and Draining

1. Disconnect the fill hose from the fresh
water source and direct the hose to a suit-
able place of drainage.
2. Open the boiler drain valve and completely
drain the unit. To aid in draining open the
manual air vent.
3. Remove the hose from the boiler drain
valve when draining is complete.
4. Remove caps, plugs and any other piping
unless they will remain for use in the system
p i p i n g .
13
A cold water fill could