Maintenance, Service Procedure, Cleaning FAN

MAINTENANCE SERVICE PROCEDURE

MAINTENANCE

WARNING: Never service heater while it is plugged in, connected to propane supply, operating, or hot. Severe burns and electrical shock can occur.

1.Keep heater clean. Clean heater annually or as needed to re- move dust and debris. If heater is dirty or dusty, clean heater with a damp cloth.

2.Inspect heater before each use. Check connections for leaks. Apply mixture of liquid soap and water to connections. Bubbles forming show a leak. Correct all leaks at once.

3.Inspect hose/regulator assembly before each use. If hose is highly worn or cut, replace.

4.Have heater inspected yearly by a qualified service agency.

5.Keep inside of heater free from combustible and foreign objects.

SERVICE PROCEDURE

WARNING: Never service heater while it is plugged in, connected to propane supply, operating, or hot. Severe burns and electrical shock can occur.

CLEANING FAN

Clean fan every 500 hours of operation or as needed.

1.Remove screws on side cover using 5/16" nut-driver.

2.Remove side cover.

3.Detach the five motor wires from parts under heater shell. Be sure to detach only wires coming from motor.

The five motor wires are:

•white wire—to terminal board

•black wire—to terminal board

•blue wire—to thermal switch wire

•orange wire—to solenoid valve

•green wire—to grounding screw on shell

4.Remove fan guard from rear of heater.

5.Reach into rear of heater shell. Carefully pull motor wires through hole in bottom of shell. Note: Pull wires through hole one at a time.

6.Remove nuts and mounting bolts holding motor mount to shell. Use 3/8" nut-driver and 7/16" wrench.

7.Carefully pull motor and fan out of shell. IMPORTANT: Be careful not to damage fan. Do not set motor and fan down with the weight resting on fan. This could damage fan pitch.

8.Turn motor and fan around. Place motor and fan into shell backwards. Note: Motor will go into shell first (see Figure 8).

9.Line up rear mounting holes in shell with first hole on each side of motor mount (see Figure 8). Note: When holes are lined up, fan should be outside of shell.

Thermal	Grounding Screw
Switch Wire

Terminal

Board

Solenoid

Valve

Figure 6 - Location of Motor Wires

Motor Mount

Mounting

Bolts

Motor Wires

Figure 7 - Location of Fan and Motor

Rear

Mounting

Hole

First

Hole

Figure 8 - Fan and Motor Turned Around

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BLP375AT specifications

Desa BLP375AT is a remarkable model in the field of energy-efficient heating solutions. Primarily designed for residential and commercial use, this boiler offers a perfect blend of innovation, performance, and reliability. One of its main features is the advanced condensing technology, which maximizes energy usage by capturing heat from flue gases that would typically be lost. This unique process enhances fuel efficiency and minimizes greenhouse gas emissions, making the BLP375AT an environmentally friendly choice.

The BLP375AT also incorporates a modulating burner, allowing it to adjust its output based on the heating demand. This feature not only optimizes energy consumption but also ensures consistent comfort levels in the space it serves. Users benefit from the boiler’s ability to maintain the desired temperature while minimizing fluctuations, resulting in improved comfort and energy savings.

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The compact design of the BLP375AT makes it suitable for various installation environments, including tight spaces that often challenge traditional heating systems. Its durable construction ensures longevity and reliability, with high-quality materials that withstand the rigors of continual use.

Furthermore, safety features are paramount in the design of the BLP375AT. Equipped with advanced sensors and automatic shut-off mechanisms, this boiler offers peace of mind to users, preventing potential hazards such as overheating or malfunctions.

In conclusion, the Desa BLP375AT stands out in the heating market for its energy efficiency, user-friendly features, compact design, and robust safety measures. With its condensing technology and modulating burner, it not only contributes to lower energy bills but also supports sustainability initiatives. The BLP375AT encapsulates modern heating technology, making it an excellent choice for those looking to enhance comfort and efficiency in their spaces.