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Bryan Steam, LLC www.bryanboilers.com
C. Test and Inspecons
Upon the compleon of boiler installaon, nal air-
fuel adjustments are to be made by factory trained
service personnel. The emissions data and the O2
levels at minimum and maximum input rate can be
found on the back side of the front-boiler’s door,
which can be referenced in the future by the boiler
operator(s) when troubleshoong and servicing the
boiler. In addion, the following tests and inspecons
are made on each boiler at the factory to ensure it
meets our highest safety and funconality standards.
• ASME hydrostac test inspecon
• Electrical components inspecon
• Operang & eciency test
• Final engineering inspecon
• Crang inspecon
DANGER
DO NOT store or use gasoline or other ammable
vapors or liquids in the vicinity of this or any other
appliance.
If you smell gas vapors, DO NOT try to operate any
appliance—DO NOT touch any electrical switch or
use any phone in the building. Immediately, call the
gas supplier from a remotely located phone. Follow
the gas supplier’s instrucons or if the supplier is
unavailable, contact the re department.
D. Component Descripon
(See Figure 1, Figure 2 and Figure 3)
E. Touchscreen display.
The display provides easy access for viewing
and adjusting boiler operational parameters,
monitoring historical performance characteriscs and
annunciang boiler alarm/lockout condions.
1. Boiler On/O switch.
2. Manual gas shutoff valve. The boiler is
equipped with two manual gas shut o valves,
one located on the incoming gas supply line
outside of the boiler, and the other downstream
of the main gas valve.
3. Main gas supply connecon.
4. Pressure relief valve. The pressure relief
protects the heat exchanger from an over-
pressure condion.
5. Ducted combuson air ange.
6. Flue gas vent outlet. The boiler comes with
a standard AL 29-4C® stainless steel vent
connecon.
7. Boiler water ow switch. The boiler water
ow switch is adjustable within the parameters
listed in Table 1. (Located inside the boiler on
Free Flex 1500 - Free Flex 6000)
Sengs Mode Of Operaon
Switch Closed Switch Open
Minimum 18 13
Maximum 50 45
8. Return water connection. A 3” diameter
Victaulic grooved connecon is provided on
the Free Flex 1000. A 3”, 150# class, ange is
provided on the Free Flex 1500 – 3000. A 6”,
150# class, ange is provided on the Free Flex
3500-6000.
9. Clean out and inspecon. The Free Flex 1000
has a 3” diameter Victaulic grooved connecon
is provided for inspecng and cleaning sediment
from the heat exchanger. The Free Flex 1500-
6000 has a 1” NPT pipe for blow down to clean
sediment from the heat exchanger and a 3”
removable plug for inspecng.
10. Supply water connection. A 3” diameter
Victaulic grooved connecon is provided on
the Free Flex 1000. A 3”, 150# class, ange
is provide on the Free Flex 1500 – 3000. A 6”,
150# class, ange is provided on the Free Flex
3500-6000.
