Procom ML150TPA, ML150HPA, ML250HPA Operating Heater, Main Tenance, Cleaning ODS/PILOT and Burner

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OPERATING HEATER

Continued

nTHERMOSTATn

CONTROL OPERATION

The thermostatic control used on these Models differs from standard thermostats.Standard thermostats sim- ply turn on and off the burner. The thermostat used on this heater senses the room temperature. At times the room may exceed the set temperature.If so, the burner will shut off.The burner will cycle back on when room temperature drops below the set temperature. The temperature setting knob can be set to any comfort level between HI and LO.

Note: The thermostat sensing bulb measures the temperature of air near the heater cabinet. This may not al- ways agree with room temperature (depending on housing construction, installation location, room size, open air temperatures, etc.)Frequent use of your heater will let you determine your own comfort levels.

nMANUAL LIGHTINGn

PROCEDURE

1.Remove lower front panel (see Figure 7 page 7).

2.Follow steps 1 through 5 under Lighting Instructions on page 12.

3.With control knob pressed in, strike match. Hold match to pilot until pilot lights.

4.Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob. Follow step 8 under Lighting Instructions on page 12.

5.Replace lower front panel.

Figure 23 - Correct Pilot Flame Pattern

Figure 24 - Incorrect Pilot Flame Pattern

BURNER FLAME PATTERN Figure 25 shows a correct burner flame pattern. Figure 26 shows an incorrect burner flame pattern. If burner flame pattem is incorrect, as shown in Figure 26.

•turn heater off (see To Turn Off Gas to Appliance. page 11 for non-thermostat models or page 12 for thermostat models).

•see Troubleshooting. pages 14 through 16.

Figure 25 - Correct Burner Flame Pattern

CLEANING ODS/PILOT AND BURNER

•Use a vacuum cleaner, pressurized air. or small, soft bristled brush to clean.

CLEANING BURNER

PILOT AIR INLET HOLE

We recommend that you clean the unit every 2,500 hours of operation or every three months. We also recommend that you keep the burner tube and pilot assembly clean and free of dust and dirt. To clean these parts we recommend using com- pressed air no greater than 30 PSl. Your local computer store, hardware store, or home center may carry com- pressed air in a can. You can use a vacuum cleaner in the blow position. If using compressed air in a can, please follow the directions on the can. If you don’t follow directions on the can, you could damage the pilot assembly.

1.Shut off the unit, including the pilot. Allow the unit to cool for at least thirty minutes.

2.Inspect burner, pilot for dust and dirt.

3.Blow air through the ports/slots and holes in the burner.

Clean the pilot assembly also. A yellow tip on the pilot flame indicates dust and dirt in the pilot assembly. There is a small pilot air inlet hole about two inches from where the pilot flame comes out of the pilot assembly (see Figure 27). With the unit off, lightly blow air through the air inlet hole. You may blow through a drinking straw if

nINSPECTING BURNERn

Check pilot flame pattern and burner flame pattern often.

PILOT FLAME PATTERN

Figure 23 shows a correct pilot flame pattern. Figure 24 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching thermocouple. This will cause the thermocouple to cool. When the thermocouple cools, the healer will shut down. If pilot flame pattern is incorrect, as shown in Figure 24.

•turn heater off (see To Turn Off Gas to Appliance. page 11 for non-thermostat models or page 12 for thermostat models.)

•see Troubleshooting, pages 14 through 16.

Figure 26 - Incorrect Burner Flame Pattern

n CLEANING AND n

MAIN TENANCE

WARNING: Turn off heater and let cool before servicing.

CAUTION: You must keep con- trol areas, burner, and circulating air passageways of heater clean. Inspect these areas of heater be- fore each use. Have heater In- spected yearly by a qualified ser- vice person. Heater may need more frequent cleaning due to excessive lint from carpeting, bedding material, pet hair, etc.

compressed air is not available.

Figure 27 - Pilot Inlet Air Hole

CLEANING HEATER CABINET Air Passageways

•Use a vacuum cleaner or pressurized air to clean.

Exterior

•Use a soft cloth dampened with a mild soap and water mixture. Wipe the cabinet to remove dust.

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Contents ML150HPA ML150TPA ML250HPA ML250TPA OWNER’S Operation and Installation ManualImportant Read this Safety InformationProduct Features Providing Adequate Ventilation Fresh AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Determining if you have a Confined or Unconfined SpaceVentilation Air from Inside Building Ventilation AIRInstallation Needs InstallationVentilation AIR Locating HeaterInstalling Thermostat Sensing Bulb InstallationAttaching to Wall Anchor Method Installing Bottom Mounting ScrewsPlacing Heater on Mounting Bracket Important Install Connecting to GAS SupplyTypical Inlet Pipe Diameters NPTChecking GAS Connections NFOR Your SAFETYnNON-THERMOSTAT Models Read Before LightingShutting Off Heater Operating Your HeaterShutting Off Burner Only pilot stays lit Shutting Off Burner Only pilot Operating Your HeaterStays lit Cleaning Burner Pilot AIR Inlet Hole Cleaning ODS/PILOT and BurnerOperating Heater Main TenanceObserved Problem Possible Cause Remedy TroubleshootingMaintenance, Page 13 or Possible Cause Remedy Observed ProblemParts Under Warranty SpecificationsML150HPA ML250TPAIllustrated Parts Breakdown Burner Assembly ODS/Pilot AssemblyML150HPA KEY ML150HPA NO. Part no Parts List ML150HPADescription QTY ODSODS/Pilot Assembly Burner Assembly KEY ML250HPA Description QTY Parts List ML250HPANRV81FIL-10 ML150TPA KEY Parts List ML150TPAML250TPA KEY ML250TPA Parts List ML250TPA

ML150TPA, ML250HPA, ML150HPA specifications

The Procom ML250HPA, ML150HPA, and ML150TPA represent the pinnacle of high-performance heating systems, tailored to meet diverse heating needs with efficiency and reliability. These models are known for their innovative technologies and robust characteristics, making them ideal choices for both residential and commercial applications.

The ML250HPA stands out with its impressive heating capacity, perfect for larger spaces. It incorporates advanced features for user convenience, including a fully programmable thermostat and remote control functionality. This model utilizes high-efficiency heating elements that not only provide powerful warmth but also help to keep energy consumption low. The integration of smart technology allows for real-time monitoring and adjustments, ensuring optimal comfort while minimizing energy use.

On the other hand, the ML150HPA is designed for medium-sized spaces, offering a balance of performance and efficiency. Like its bigger counterpart, it showcases energy-efficient heating elements. The model is equipped with built-in safety features such as overheat protection and tip-over switches, ensuring peace of mind during operation. Its compact design allows for versatile installation options, while the stylish finish makes it an attractive addition to any room.

The ML150TPA variant focuses on portability without sacrificing performance. This model is lightweight, making it easy to move from one location to another while still providing powerful heating capabilities. It features an adjustable heat output, allowing users to customize the temperature according to their immediate needs. The robust construction ensures durability, making it suitable for various environments, from workshops to temporary living spaces.

All three models emphasize energy efficiency and low operating costs, incorporating eco-friendly technologies that align with modern energy standards. The intelligent design of these units helps to reduce noise levels, providing a peaceful environment without disruptive sounds common in traditional heating systems.

In summary, the Procom ML250HPA, ML150HPA, and ML150TPA are exceptional heating solutions that cater to different requirements while ensuring energy-efficient and reliable performance. Their combination of advanced features, safety mechanisms, and user-friendly interfaces make them a smart investment for anyone looking to enhance their heating experience. Whether you prioritize capacity, portability, or a balance of both, Procom has a model designed to meet your specific needs.
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