Riello Family PRO 42 IS, Installation & Operating Instructions For Contractors

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− The regulations for the power supply connection.
− The technical rules laid down by the gas utility company concerning
the connection of the gas connection to the local gas main.
− The instructions and standards concerning the safety equipment
for the water/space heating system.
− The Installation instructions for building heating systems.
− The boiler must be located in an area where leakage of the tank
or connections will not result in damage to the area adjacent to
the boiler or to lower floors of the structure. When such locations
cannot be avoided, it is recommended that a suitable drain pan,
adequately drained, be installed under the boiler. The pan must
not restrict combustion air flow.
− The boiler must be installed such that the gas ignition system
components are protected from water (dripping, spraying,
rain etc.) during boiler operation and circulator replacement,
condensate trap, control replacement, etc.
− The boiler must not be installed on carpeting.
− The boiler must only be installed on a wall.
− Do not restrict or seal any air intake or outlet openings.
− If you find any defects, you must inform the owner of the system
of the defect and the associated hazard in writing.
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DANGER : Flammable gas explodes. Beware if you smell gas: there
may be an explosion hazard!
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WARNING : If the information in these instructions is not followed
exactly, a fire or explosion may result causing property damage,
personal injury or death.
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WARNING : Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other boiler.
Observe these instructions as general WARNING s:
− Chemicals used to clean the system and/or inhibit corrosion must
be pH neutral, i.e. they should ensure that the level of the pH in
the system water remains neutral. Premature failure of certain
components can occur if the pH level in the system water is out
of normal range.
− R recommends that an inhibitor - suitable for use with
stainless steel heat exchangers - is used to protect the boiler and
system from the effects of corrosion and/or electrolytic action.
The inhibitor must be administered in strict accordance with the
manufacturers instructions.
− When the boiler has been filled for the first time or the system has
been drained and refilled, it will be necessary to purge any air that
may have become trapped within the appliance heat exchanger.
NOTICE : Propylene glycol in the system must not exceed 40%.
Boiler water
- If you have an old system with cast iron radiators, thoroughly flush
the system (without the boiler connected) to remove sediment.
The high-efficiency heat exchanger can be damaged by build-up
or corrosion due to sediment
- Do not use petroleum-based cleaning or sealing compounds
in the boiler system. Gaskets and seals in the system may be
damaged. This can result in substantial property damage.
- Do not use “homemade cures” or “boiler patent medicines.”
Substantial property damage, damage to boiler, and/ or serious
personal injury may result.
- Continual fresh make-up water will reduce boiler life. Mineral
build up in heat exchanger reduces heat transfer, overheats the
stainless steel heat exchanger, and causes failure. Addition of
oxygen carried in by make-up water can cause internal corrosion
in system components. Leaks in the boiler or piping must be
repaired at once to prevent make-up water.
- We recommend the use of water treatment additives to prolong the
life of the boiler and prevent against corrosion and contaminant
build ups in the heating system.
- Ensure piping in the heating system has an oxygen barrier.
Observe these instructions for space heating water:
− Thoroughly flush the system prior to filling. Only use untreated
potable water to fill and top off the system.
− Do not use water softeners in the system.
− The maximum permissible flow rate of the Family PRO 42 is 150k
BTU/h per minute (GPM).
− When using oxygen-permeable pipes, e.g. for floor heating
systems, you must separate the system using heat exchangers.
Unsuitable heating system water promotes the formation of
sludge and corrosion. This may damage the heat exchanger or
affect its operation.
Tools, materials and additional equipment
For the installation and maintenance of the boiler you will need the
standard tools for space heating, gas and water connection.
In addition, a handtruck with a fastening belt is very useful.
Disposal:
− Dispose of the boiler packaging in an environmentally sound
manner.
− Dispose of components of the heating system (e. g. boiler or
control device), that must be replaced, by taking them in to an
authorized recycling facility.
3 SAFETY
3.1 General safety
To meet domestic hot water use needs, the high limit safety control
on this boiler is adjustable up to 140°F (60°C).Water temperatures
over 125°F (52°C) can cause instant severe burns or death from
scalds.
When supplying general purpose hot water, the recommended
initial setting for the temperature control is 120⁰°F (49°C).
Safety and energy conservation are factors to be considered when
setting the water temperature on the thermostat. The most energy-
efficient operation will result when the temperature setting is the
lowest that satisfies the needs of the application.
Children, disabled and elderly are at highest risk of being scalded.
− Feel water before bathing or showering.
− Temperature limiting valves are available.
NOTICE (for heating only model): When this boiler is
supplying general purpose hot water for use by individuals,
a thermostatically controlled mixing valve for reducing point
of use water temperature is recommended to reduce the
risk of scald injury. Contact a licensed plumber or the local
plumbing authority for further information.
Maximum water temperatures occur just after the boiler’s burner
has shut off. To determine the water temperature being delivered,
turn on a hot water faucet and place a thermometer in the hot
water stream and read the thermometer.
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Only for heating only model
WARNING : This boiler cannot supply hot water for use by
individuals directly. A heat exchanger must be used in
conjunction with this boiler to meet DHW needs.
3.2 Scalding time/temperature relationships
The following chart details the relationship of water temperature
and time with regard to scald injury and may be used as a guide
in determining the safest water temperature for your applications.
Water Temperature Time to Produce Serious Burn
120°F (49 °C) More than 5 minutes
125°F (52 °C) 1-1/2 to 2 minutes
130°F (54 °C) About 30 seconds
135°F (57 °C) About 10 seconds
140°F (60 °C) Less than 5 seconds
145°F (63 °C) Less than 3 seconds
150°F (66 °C) About 1-1/2 seconds
155 °F (68 °C) About 1 second
Table courtesy of The Shriners Burn Institute
The temperature of the water in the boiler can be regulated
by using the R boiler front control. To comply with safety
regulations, the control is set to a lower temperature when
shipped from the factory.
CAUTION : Hotter water increases the risk of scalding! There is a
hot water scald potential if the thermostat is set too high.