4.Installation of Boiler Trim Components Cont.

1.Install L4006A aquastat in upper left or right rear tapping using 3/4” immersion well. All tapings and joints should be sealed with piping compound. The L4006A can be adjusted up to 220o F, and should be set to the desired temperature by the installer. The differential is also adjustable between 5 and 30 degrees. It should be set as close to 30 degrees as possible to prevent short cycling of the boiler. If you are installing a 7248U, Screw the unit to side panel of the boiler as close to the immersion well as possible using the tabs on the aquastat. Run the sensor from behind the aquastat to the immersion well and fix it according to Honeywell’s instructions. The 7248 can be adjusted between 140o F and 220o F with a fixed differential of 30 degrees.

2.Install Pressure Relief Valve in opposite, upper rear tapping using 3” nipple and 3/4” elbow

3.Install 3/4” boiler drain in lower left or right rear tapping, or lower front tapping.

4.install 3/4” plug in opposite lower rear tapping, and/or the other plug in lower front tapping of the boiler.

5.Install combination pressure/temperature gauge and 1/2” x 1/4” bushing in upper front tapping. The gauge must be tightened using a wrench and not your hand.

6.Install burner mounting hardware in the four tapings on the front of the boiler door.

7.Install boiler door bolts on opposite side of door hinge.

Boiler Tapping Diagram:

Ø21 Pressure/Temperature Guage Tapping

1

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

Ø12

Supply Tapping

 

 

 

 

 

Ø4

PRV or Hi Limit Control Tapping

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ø34 Hi Limit Control or PRV Tapping

Ø321 Burner Blast Tube Orifice

Ø34 Alternative Boiler Drain Tapping

Ø6 Exhaust Breeching

27

111

3

 

Ø4

Alternative Boiler Drain Tapping

2

 

 

41

 

Ø11 Return Tapping

2

 

2

 

 

Ø3 Boiler Drain Tapping

 

 

4

3X 27

22

334

2X 421

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QHT B3-B9 installation instructions Installation of Boiler Trim Components, Boiler Tapping Diagram

B3-B9 specifications

The QHT B3-B9 is a remarkable series of versatile vehicles designed to cater to a wide array of industries, including construction, mining, and heavy-duty logistics. With a focus on durability, efficiency, and innovative technology, the QHT B3-B9 stands out as a preferred choice for demanding tasks.

One of the key features of the QHT B3-B9 series is its robust frame construction, which employs high-strength steel to ensure maximum durability in harsh working conditions. This resilience allows the vehicle to withstand significant payloads while minimizing wear and tear, reducing maintenance costs over the long haul. Additionally, the design includes advanced corrosion resistance treatments, extending the vehicle's lifespan even in challenging environments.

The QHT B3-B9 is powered by a state-of-the-art engine, which adheres to the latest emissions standards while delivering impressive fuel efficiency. This engine utilizes advanced fuel injection technology, optimizing power output without compromising environmental responsibility. The combination of high torque and superior power-to-weight ratio enables the vehicle to perform effectively across various terrains, ensuring stability and control under load.

Another notable characteristic of the QHT B3-B9 series is its emphasis on operator comfort and safety. The cabin is ergonomically designed, featuring adjustable seating, intuitive controls, and enhanced visibility. This focus on user experience not only enhances productivity but also minimizes operator fatigue during long hours of operation. To further improve safety, the vehicle is equipped with comprehensive monitoring systems that provide real-time feedback on performance and potential issues.

Technologically, the QHT B3-B9 integrates advanced telematics, allowing operators and fleet managers to track performance metrics, fuel consumption, and maintenance schedules. This connectivity enables proactive management, reducing downtime and improving overall efficiency.

In conclusion, the QHT B3-B9 series represents a harmonious blend of strength, efficiency, and modern technology, making it an invaluable asset for businesses that require reliable performance in demanding environments. Its innovative features and commitment to operator safety and comfort ensure that it remains a top choice among heavy-duty vehicles in its class.