Use Of Antifreeze In The Boiler System; Filling The Boiler System; Check Low Water Cut-Off Device - Prestige Solo 110 Installation And Maintenance Manual

Start-Up Preparation

Use of Antifreeze in the Boiler System

WARNING
NEVER use automotive or ethylene gly-
col antifreeze or undiluted antifreeze in
the primary system as freeze protection.
This can cause severe personal injury,
death or substantial property damage if
ignored.
Determine the antifreeze fluid quantity using
the system water content volume and following
the antifreeze manufacturer instructions.
The water volume of the PRESTIGE is approx-
imately 3 gallons. Remember to include the vol-
ume of the expansion tank.
Check with local codes requirements for the
installation of backflow preventers or actual
disconnect from the boiler's cold water fill or
make up water supply line.
NOTICE
Massachusetts Code re q u i res a re d u c e r
p re s s u re backflow pre v e n t e r if antifre e z e
is used.
Ensure the concentration of antifreeze to water
does not exceed a 50/50 ratio.
NOTICE
System water, including additives, must
be practically non-toxic, having a toxicity
rating or Class of 1, as listed in Clinical
Toxicology of Commercial Pro d u c t s .

Filling the Boiler System

1. Close the boiler drain valve located on the
bottom of the unit and any manual or auto-
matic air vent in the system.
2. Open all system isolation valves.
3. Fill the boiler system to correct system
pressure. Correct pressure will vary with
each application.
NOTICE
Typical residential system fill pressure is
12 psi. System pressure will increase
when system temperature incre a s e s .
Operating pressure of the system should
never exceed 25 psi.
4. Purge air and sediment in each zone of the
boiler system through the purge valve.
Open air vents to allow air to be purged in
the zones.
5. Once the system is completely filled and
purged of all air and sediment, check the
system pressure and check/repair any
leaks.
WARNING
Unrepaired system leaks will cause con-
tinual makeup water to be added to the
boiler. Continual makeup water could
cause mineral buildup within the heat
exchanger, reducing the heat transfer,
causing possible heat buildup and even-
tual heat exchanger failure.

Check Low Water Cut-Off Device

- The PRESTIGE is provided with a factory
installed LWCO device that measures sys-
tem pressure of more than 10 psi.
- Remove the front jacket panel and check for
continuity across the low water cut-off
device wire terminals. The contacts should
be closed when system pressure is greater
than 10 psi. See item 5,on Fig. 23 page 57.
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