3
9
WARNING:
Automatic filling systems are not recommended
with this product as they will continually add fresh water to
the system if there is a leak resulting in the addition of new
contaminants that could reduce the lifespan of the boiler.
9
WARNING:
To minimize the possibility of improper operation,
serious personal injury, fire, or damage to the boiler:
Always keep the area around the boiler free of combustible
materials, gasoline, and other flammable liquids and vapors.
Boiler should never be covered or have any blockage to the
flow of fresh air to the boiler.
9
WARNING:
Risk of electrical shock. More than one disconnect
switch may be required to de-energize the equipment before
servicing.
9
WARNING:
Failure to comply with the above could result in severe
personal injury, death or substantial property damage. Failure
to adhere to the guidelines on this page can result in severe
personal injury, death or substantial property damage.
9
WARNING:
Installation and service must be performed by a gas
supplier or a licensed qualified installer/service Technician.
9
WARNING - CALIFORNIA PROPOSITION 65:
This product contains
chemicals known to the State of California to cause cancer, birth
defects or other reproductive harm.
9
CAUTION:
This boiler requires forced water circulation when the
burner is operating. See minimum and maximum flow rates.
Severe damage will occur if the boiler is operated without proper
water flow circulation.
Minimum 20 AWG, 194°F (90°C), solid thermostat wire must be used
for all low voltage (less than 30 volts) external connections to the
unit. Solid conductors should not be used because they can cause
excessive tension on contact points. Install conduit as appropriate.
NOTICE
: When the boiler has been filled for the first time or the sy-
stem has been drained and refilled, it will be necessary to release
any air that may have become trapped within the appliance heat
exchanger. Loosen the bleed screw until water is released and then
close. IMPORTANT, THERE ARE NO OTHER MANUAL AIR RELEASE VALVES LO-
CATED ON THE APPLIANCE.
Follow all safety codes. Wear safety glasses, protective
clothing, and work gloves. Have a fire extinguisher available.
Read these instructions thoroughly and follow all
WARNING
s or
CAUTION
s included in literature and attached to the appliance.
The following instructions must be observed
− The boiler must only be used for its designated purpose, observing
the Installation Instructions.
− Only use the boiler in combinations and with the accessories and
spare parts listed.
− Other combinations, accessories and consumables must only be
used if they are specifically designed for the intended application
and do not affect the system performance and the safety
requirements.
− Maintenance and repairs must only be carried out by authorized
professionals.
− You must report the installation of a condensing gas boiler to
the relevant gas and plumbing inspection authority and have it
approved.
− You are only allowed to operate the condensing gas boiler with
the combustion air/flue gas system that has been specifically
designed and approved for this type of boiler.
− Please note that local permission for the flue system and the
condensate water connection to the public sewer system may be
required.
− The hot water distribution system must comply with all
applicable codes and regulations. When replacing an existing
boiler, it is important to check the condition of the entire hot
water distribution system to ensure safe operation.
You must also observe:
− The local building regulations stipulating the installation rules.
− The local building regulations concerning the air intake and outlet
systems and the chimney connection.
This
9
is the safety−alert symbol. When you see this symbol
on the appliance and in instructions or manuals, be alert to the
potential for personal injury.
Understand the signal words
DANGER
,
WARNING
, and
CAUTION
.
These words are used with the safety−alert symbol.
DANGER
identifies the most serious hazards which will result in
severe personal injury or death.
WARNING
signifies a hazard which could result in personal injury
or death.
CAUTION
is used to identify hazards which may result in minor
personal injury or product and property damage.
NOTE
and
NOTICE
are used to highlight suggestions which will
result in enhanced installation, reliability, or operation.
2 WARNINGS
2.1
Ratings and Certifications
− Gas fired hot water boiler for either direct vent installation.
Design according to: ANSI Z21.13-2017
CSA 4.9-2017 – Gas-Fired
low pressure hot water boilers. Direct vent boiler, Category IV.
− SCAQMD Rule 1146.2
9
WARNING
: Altering any
R
pressure vessel by installing
replacement heat exchangers, or any ASME parts not
manufactured and/or approved by
R
will instantly void the
ASME and CSA ratings and any warranty on the vessel. Altering
the ASME or CSA ratings of the vessel also violates national,
state, and local approval codes.
Combi models are certified to NSF/ANSI 372-2016 - Low lead content
certification program - plumbing products and conform to the
requirements for “lead free” plumbing products.
2.2
Regulations and guidelines
The installation must conform to the requirements of the authority
having jurisdiction or, in the absence of such requirements, to the
latest edition of the National Fuel Gas Code, ANSI Z223.1/NFPA 54. In
Canada, installation must be in accordance with the requirements
of CAN/CSA B149.1, Natural Gas and Propane Installation Code.
Where required by the authority having jurisdiction, the installation
must conform to the Standard for Controls and Safety Devices for
Automatically Fired Boilers, ANSI/ASME CSD-1.
Install CO detectors per local regulations. The use of a carbon
monoxide detector in conjunction with the
R
heating products
is required. When installing a carbon monoxide detector, the
manufacturer’s instructions of the carbon monoxide detector must
be followed in their entirety. It is recommended to use a carbon
monoxide detector in compliance with a nationally recognized
standard such as ANSI/UL 2034-2002 in the United States and CSA
6.19-01 in Canada.
Boilers require yearly maintenance, see chapters “12.2” and 14.
General warnings
9
DANGER:
Make sure the gas on which the boiler will operate is
the same type as that specified on the boiler rating plate and
on the colored sticker near the boiler gas connection.
9
WARNING: This product is a gas appliance that emits poisonous
gases; such as CO (Carbon Monoxide). For this reason, it is
required that CO detectors be installed in buildings where the
boiler is installed. Failure to do so may result in severe injury
or death.
9
WARNING:
Should overheating occur or the gas supply valve
fail to shut off, turn off the manual gas control valve to the
appliance.
9
WARNING:
Do not use this boiler if any part has been under
water. Immediately call a qualified service technician to inspect
the appliance and to replace any part of the control system and
any gas control which has been under water.
9
WARNING:
Chlorine and chloramine
concentration in domestic
water must be less than 50 ppm.
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