Pump Rotor, Ignition Control Assembly | Desa R115T, REM115T, B115T

115,000 Btu/Hr H.S.I. Series

PORTABLE FORCED AIR HEATER

SERVICE

PROCEDURES

Continued

PUMP ROTOR

(Procedure if Rotor is Binding)

1.	Remove upper shell (see page 7).
2.	Remove ﬁlter end cover screws using
	5/16" nut-driver.
3.	Remove ﬁlter end cover and air ﬁlters
	(see Figure 16).
4.	Remove pump plate screws using 5/16"
	nut-driver.
5.	Remove pump plate.
6.	Remove rotor, insert, and blades.
7.	Check for debris in pump. If debris is
	found, blow out with compressed air.
8.	Install insert and rotor.
9.	Check gap on rotor. Adjust to .003"/
	.004" if needed (see Figure 17).
	Note: Rotate rotor one full turn to in-
	sure the gap is .003"/.004" at tightest
	position. Adjust if needed.
10.	Install blades, pump plate, air ﬁlters,
	and ﬁlter end cover.
11.	Replace fan guard and upper shell.
12.	Adjust pump pressure (see page 7).
	Note: If rotor is still binding, proceed
	as follows.
13.	Perform steps 1 through 6 above.

Blade

Pump Plate

Air Intake Filter

Filter End

Cover

Insert

Rotor

Air Output

Filter

Fan Guard

Figure 16 - Rotor Location

Gap Adjusting Screw

Blade

.003"/.004" Gap Measured With Feeler Gauge

Rotor

Gap Adjusting Screw

IGNITION CONTROL

ASSEMBLY

(Procedure for Replacing Fuse)

WARNING: High Voltage

1.Unplug heater.

2.Remove side cover screws (4) using 5/16" nut-driver to expose ignition con- trol assembly.

3.Remove fuse cover (see Figure 19).

4.Remove fuse from fuse clips.

5.Replace fuse with fuse of the same type and rating (GMA-10). Do not substi- tute a fuse with a higher current rating.

6.Replace fuse cover.

7.Replace side cover.

	Fuse	Fuse
	Clips	Fuse
	Clips	Cover
		Cover
		Fuse

Figure 19 - Replacing Fuse

Figure 17 - Gap Adjusting Screw Locations

14.	Place ﬁne grade sandpaper (600 grit)
	on ﬂat surface. Sand rotor lightly in
	“ﬁgure 8” motion four times (see Fig-	Sandpaper
	ure 18).	Sandpaper
15.	Reinstall insert and rotor.
16.	Perform steps 10 through 12 above.

Figure 18 - Sanding Rotor

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B115T, R115T, REM115T specifications

Desa R115T, B115T, and REM115T are models of advanced heating and cooling systems designed to provide optimal performance and efficiency in climate control. These systems have been engineered to meet the diverse needs of both residential and commercial spaces, ensuring comfort regardless of external weather conditions.

The Desa R115T is known for its robustness and reliability. Featuring a powerful heating component, it employs a high-efficiency burner that maximizes heat output while minimizing fuel consumption. The unit integrates state-of-the-art digital controls, allowing for precise temperature settings and scheduling. Key features include a quick warm-up time, quiet operation, and a durable construction that ensures longevity, making it suitable for various applications.

On the other hand, the Desa B115T focuses on versatility and user-friendliness. This model features a dual fuel capability, allowing it to operate on both propane and natural gas, providing flexibility based on availability and preference. Its advanced thermostat offers smart capabilities, enabling remote access via smartphone applications. The B115T’s sleek design and compact size make it an ideal choice for urban environments where space is limited.

The REM115T is another impressive option, primarily distinguished by its eco-friendly design. This model utilizes advanced heat pump technology that extracts heat from the surrounding air, significantly reducing carbon emissions. It is equipped with a variable-speed compressor that adjusts to the heating and cooling demands, providing energy efficiency that can lead to substantial savings on utility bills. The REM115T also includes a built-in air purification system, improving indoor air quality by reducing allergens and pollutants.

All three models boast advanced insulation to enhance their energy efficiency ratings, contributing to lower operational costs. They are equipped with user-friendly interfaces, allowing for easy monitoring and adjustment of settings. Furthermore, their compatibility with smart home systems makes them a modern solution for environmentally conscious users seeking automated comfort.

Overall, Desa R115T, B115T, and REM115T are exemplary models of heating and cooling technology, each offering unique features and capabilities tailored to meet diverse needs while ensuring efficient and reliable climate control. With their cutting-edge technologies, these systems exemplify the future of home and commercial heating solutions.

Desa R115T, REM115T, B115T owner manual Pump Rotor, Ignition Control Assembly

Models: B115T R115T REM115T