VIII. System Start-up

A.Safe operation and other performance criteria were met with gas manifold and control assembly provided on boiler when boiler underwent tests speciﬁed in American National Standard for Gas-Fired Low- Pressure Steam and Hot Water Boilers, ANSI Z21.13.

B.Verify that the venting, water piping, gas piping and electrical system are installed properly. Refer to installation instructions contained in this manual.

C.Conﬁrm all electrical, water and gas supplies are turned off at the source and that vent is clear of obstructions.

D.Conﬁrm that all manual shut-off gas valves between the boiler and gas source are closed.

WARNING

Completely read, understand and follow all instructions in this manual before attempting start up.

E.Fill entire heating system with water and vent air from system. Use the following procedure on a Series Loop or multi-zoned system installed as per Figure 25 or 26 to remove air from system when ﬁlling.

WARNING

The maximum operating pressure of this boiler is 30 psig. Never exceed this pressure. Do not plug or change pressure relief valve.

NOTICE

If it is required to perform a long term pressure test of the hydronic system, the boiler should first be isolated to avoid a pressure loss due to the escape of air trapped in the boiler.

To perform a long term pressure test including the boiler, ALL trapped air must first be removed from the boiler.

A loss of pressure during such a test, with no visible water leakage, is an indication that the boiler contained trapped air.

1.Close full port ball valve in boiler supply piping.

2.Isolate all zones by closing zone valves or shut-off valves in supply and return of each zone(s).

3.Attach a hose to the vertical hose bib located prior to the full port ball valve in the system supply piping. (Note - Terminate hose in ﬁve gallon bucket at a suitable ﬂoor drain or outdoor area).

4.Starting with one circuit at a time, open zone valve or shut-off valve in system supply and return piping.

5.Open hose bib.

6.Open ﬁll valve (Make-up water line should be located directly after full port ball valve in system supply piping between air scoop and expansion tank).

7.Allow water to overﬂow from bucket until discharge from hose is bubble free for 30 seconds.

8.Close the opened zone valve or shut-off valve for the zone being purged of air, then open the zone valve or shut-off valve for the next zone to be purged. Repeat this step until all zones have been purged. At completion, open all zone valves or shut-off valves.

9.Close hose bib, continue ﬁlling the system until the pressure gauge reads 12 psi. Close ﬁll valve.

(Note - If make-up water line is equipped with pressure reducing valve, system will automatically ﬁll to 12 psi. Follow ﬁll valve manufacturer’s instructions).

10.Open isolation valve in boiler supply piping.

11.Remove hose from hose bib.

F.Conﬁrm that the boiler and system have no water leaks.

G.Prepare to check operation.

1.Obtain gas heating value (in Btu per cubic foot) from gas supplier.

2.Connect manometer to pressure tap on gas valve. Use 1/8 NPT tapping provided.

3.Temporarily turn off all other gas-ﬁred appliances.

4.Turn on gas supply to the boiler gas piping.

5.Conﬁrm that the supply pressure to the gas valve is 14 in. w.c. or less. Refer to Table 5 for minimum supply pressure.

6.Open the ﬁeld installed manual gas shut-off valve located upstream of the gas valve on the boiler.

7.Using soap solution, or similar non-combustible solution, electronic leak detector or other approved method. Check that boiler gas piping valves, and all other components are leak free. Eliminate any leaks.

DANGER

Do not use matches, candles, open flames or other ignition source to check for leaks.

8. Purge gas line of air.

SCG specifications

Burnham SCG, short for Burnham Smart City Grid, represents a groundbreaking initiative aimed at reshaping urban landscapes through the integration of modern technologies and sustainable practices. Situated in the heart of a growing metropolis, Burnham SCG embodies the principles of smart city design, focusing on creating an efficient, interconnected environment that enhances the quality of life for its residents.

One of the key features of Burnham SCG is its extensive use of Internet of Things (IoT) technology. This infrastructure enables real-time data collection from various sensors strategically placed throughout the city. For instance, smart streetlights equipped with sensors adjust their brightness based on ambient light conditions and pedestrian activity, effectively reducing energy consumption. This use of IoT extends to waste management, where smart bins signal when they are full, optimizing collection routes and minimizing fuel consumption.

In addition to IoT, Burnham SCG places a strong emphasis on renewable energy sources. The city integrates solar panels across public buildings and utilizes wind turbines in designated areas, contributing to a significant reduction in carbon emissions. Furthermore, an advanced battery storage system ensures that excess energy generated during peak production times is efficiently stored and used during high-demand periods, promoting energy resilience.

Transportation in Burnham SCG embraces the future with integrated smart mobility solutions. A robust network of electric vehicle charging stations encourages the adoption of eco-friendly transportation. The city also features a user-friendly app that provides real-time information about public transport schedules, bike-sharing availability, and traffic conditions, making it easier for residents to navigate their daily commute.

The urban design of Burnham SCG prioritizes green spaces and walkability. Urban planners have designed parks and pedestrian-friendly pathways that encourage outdoor activities and community engagement. These green areas not only enhance urban aesthetics but also contribute to improved air quality and biodiversity.

Lastly, community involvement stands at the core of Burnham SCG’s framework. The city regularly engages its residents through public forums and digital platforms, ensuring that their voices are heard in decision-making processes regarding urban development and sustainability initiatives.

In summary, Burnham SCG is a visionary model of a smart city that integrates technology, sustainability, and community engagement. With its innovative features and forward-thinking policies, it sets a benchmark for future urban developments around the world.