RBI SPECTRUM Series - General Piping Requirements; Freeze Protection

Finned copper tube gas boilers & water heaters – Boiler Manual
8
OUTDOOR VENTING
When installed outdoors the Spectrum must be ed with the
factory supplied outdoor hood assembly, see Figure 3. Multiple
units must be spaced per Figure 3A.
e boiler/water heater must be at least 10 , 3.1 m from any
door, window or gravity air inlet into any building and at least
3 , 0.9 m from any overhang unless local codes dictate dierently.
Avoid locations where wind deection o of adjacent walls, buildings
or shrubbery might cause a down dra. e unit(s) should be located
at least 3 , 0.9 m from structures. Outdoor installations are not
recommended in areas where the danger of snow blockage exists.
Do not place the boiler/water heater in a location that
would subject it to runo from adjacent buildings or
damage may occur voiding the warranty!
Figure 3 Outdoor Venting
Figure 3A Multiple Outdoor Units
GENERAL PIPING REQUIREMENTS
Improper piping of this boiler/water heater will void the
manufacturer’s warranty and can cause boiler failure
resulting in ooding and extensive property damage!
Excessive water hardness causing lime build-up in
the copper heat exchanger tubes is NOT covered under
the manufacturer’s warranty. Excessive piing and
erosion of the internal surface of the copper heat
exchanger tubes is NOT covered under the
manufacturer’s warranty if the result of high water
ow rates, see Table 7 or 8. Return water temperatures
below 110°F, 43°C will result in heat exchanger
damage from excessive condensation voiding the
manufacturer’s warranty, see Primary/Secondary
Piping Figure 5.
Shut o valves and unions should be installed at the
inlet and outlet connections of the boiler water heater
to provide for isolation of the unit should servicing
be necessary.
Freeze Protection
is boiler/water heater is CSA designed certied for outdoor
installation. Outdoor installations in areas where the danger of
freezing exists are not recommended unless proper freeze protection
is provided. If the unit is to be installed in such an area the following
precautions MUST be observed:
1. A continuous ow of water through the boiler/water heater
MUST be maintained! e pump responsible for ow through
the boiler/water heater must run continuously!
2. An ethylene glycol/water mixture suitable for the minimum
temperature that the unit will be exposed to must be used. e
pump must be capable of producing 15% more ow and
overcoming a 20% increase in head loss. Domestic water systems
must be isolated from the water heater by the use of a
heat exchanger or other approved method.
3. If the boiler/water heater must be shut o for any reason the
electric, gas and water supplies MUST be shut o and the unit
and its pump completely drained.
Improper outdoor installation of this boiler/water heater
can cause boiler failure voiding the manufacturer's
warranty!
SPECTRUM
HEADER
HOOD
SUPPLY/RETURN
HEADER HOOD
EXHAUST
HOOD
COMBUSTION
AIR HOOD
3'
0.9 m
4'
1.2 m
RIOM-53
RIOM-54
RIOM-52