2
CHAPTER 1
1.3. Boiler Freeze Protection Feature
The ACVMax boiler management system has a freeze
protection feature built in. This feature monitors the
boiler water temperature and responds as follows
when no call for heat is present:
• 46ºF [8ºC] Pump outputs congured to respond to
a CH1 Call are enabled.
• 42ºF [6ºC] Pump outputs congured to respond to
a CH1 or CH2 Call are enabled, Burner operates at
low re.
• 60ºF [15ºC] Freeze protection ends. Burner & all
pumps turn o after completing CH Post Pump Time.
• The boiler freeze protection feature is dis-
abled during a hard lockout. The burner
will not fire, but the circulators will operate.
• The boiler freeze protection feature is de-
signed to protect the boiler, not the heating
system. The boiler should be installed in a
primary/secondary piping arrangement if it
is installed in an unheated space or exposed
to water temperatures of 46ºF or less. Refer
to Chapter 4 for primary/secondary and
Chapter 10 for antifreeze guides.
• Failure to comply can result in minor prop-
erty damage, or injury.
1.4. Boiler Replacement
If the PRESTIGE Solo is replacing an existing boiler, the
following items should be checked and corrected prior
to installation:
• Boiler piping leaks and corrosion.
• Proper location and sizing of the expansion
tank on the boiler heating loop.
• The existing vent system is appropriate for the
PRESTIGE Solo and it is correctly installed. Refer
to the PRESTIGE Vent Supplement for the vent
system requirements.
• Amount and quality of propylene glycol within
the system, if applicable.
1.5. Recommended Clearances
The PRESTIGE Solo is approved for zero clearance to
combustibles, excluding vent and boiler piping.
CAUTION
CHAPTER 1 - PRE-INSTALLATION REQUIREMENTS
• Boiler piping must be a minimum 1/4 inch from
combustible materials.
• Reference the PRESTIGE Vent Supplement for
vent pipe clearance requirements.
It is recommended that the following clearances
be maintained for serviceability:
• Top boiler jacket - 24 inches [610 mm].
• Front - 24 inches [610 mm].
• Bottom boiler piping - 24 inches [610 mm].
• Rear - 0 inches
• Sides - 6 inches [153 mm]
When maintaining less than recommended
service clearances, some product labeling, in-
cluding the rating label, may become hidden
and unreadable.
• If the recommended clearances list-
ed above cannot be maintained
or the enclosure in which the boil-
er is installed is less than 85 cubic
feet, the space must be ventilated.
See Section 2.2 on page 4.
• When installing the PRESTIGE Solo in a con-
fined space, sufficient air must be provided
to allow, under normal operating condi-
tions, proper air flow around the product
to maintain ambient temperatures within
safe limits to comply with the National Fuel
Gas Code (NFPA 54 / ANSI Z223.1)
• Failure to comply with these instructions
can result in substantial property dam-
age, serious injury, or death.
1.6. Residential Garage Installations
When installing the PRESTIGE Solo in a residential ga-
rage, the following special precautions per NFPA 54/
ANSI Z223.1 must be taken:
• Mount the unit a minimum 18 inches [458 mm]
above the oor level of the garage. Ensure the
burner and ignition devices / controls are no less
than 18 inches [458 mm] above the oor level.
• Locate or protect the unit in a manner so it can-
not be damaged by a moving vehicle.
BEST PRACTICE
NOTICE
WARNING
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