Thermo Products MO-425 CAD Cell Checkout Procedure, Cleaning or Replacing Flue Pipes, On START-UP

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All installations and services must be performed by qualified service personnel.

B. CAD CELL CHECKOUT PROCEDURE:

1.Remove cad cell lead wires, then start the burner. Shortly after burner starts, place a temporary jumper between terminal f - f. Connect ohmmeter across cad cell lead wires - resistance should be under 1600 ohms.

2.Stop burner and remove temporary jumper.

3.With the burner off, check dark cell resistance across cad cell lead wires. Resistance should be greater then 20,000 ohms. If cell resistances are different from above, recheck wiring location of cell, etc. If necessary, replace plug in portion of cell, (Part No. 350104).

4.Reconnect cad cell lead wires. Check out the Protectorelay control (primary control) according to the instructions packed with the control.

C. CLEANING OR REPLACING FLUE PIPES:

Flue pipes should be inspected during the annual maintenance check-up or during each subsequent service call.

Flue pipes should be inspected for restrictions due to soot or carbon build-up as well as foreign matter or any material which may cause the venting system to become restricted and not allow the proper venting of combustion products. If a restriction occurs, the flue pipe must be cleaned or replaced to ensure proper venting.

Flue pipes should also be inspected for any signs of corrosion, deterioration or leakage that may cause combustion byproducts to infiltrate the home or indoor environment. If signs of corrosion, deterioration or leakage are evident then the flue pipe must be replaced with a properly sized agency approved flue pipe.

D.EXTENDED SHUT DOWN AND RESTART: If an oil furnace is shut down or off for an extended period of time, several steps can be taken to help insure a smooth and reliable restart.

ON SHUT-DOWN:

1.Close oil supply valve.

2.Disconnect power to the unit.

3.Fill oil tank to prevent condensation.

4.If shut down exceeds one season, an oil stabilizer should be added to the oil tank as recommended by your oil supplier.

ON START-UP:

1.Have system inspected and started by a qualified service person.

2.Check oil level in tank. If tank has not been filled with fresh oil, inspect oil for signs of contamination such as water, algae, dirt or other impurities.

3.Change oil filter cartridge and clean canister.

4.Set thermostat above room temperature.

5.Open all valves in the oil supply line.

6.Open the inspection cover on upper mounting plate.

7.Turn on the main power or service switch to unit to start the burner. If the burner does not start, immediately reset the manual overload switch on the motor (if so equipped) and the safety switch of the burner primary control. Bleed the fuel unit as soon as the burner motor starts rotating. To bleed the fuel unit or pump, attach a clear plastic hose over the vent plug. Loosen the plug and catch the oil in an empty container. Tighten the plug when all the air appears to be purged. If the burner stops during bleeding; wait three to five minutes for the control safety switch to cool then manually reset the switch completing the bleeding procedure.

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Contents OIL Furnace Table of Contents Section Beginning Combustible Material General Instructions Read Before Start of InstallationNON-COMBUSTIBLE Material Proper Chimney Size II. InstallationMAKE-UP AIR ChimneyPrevention of Chimney Condensing Proper Chimney Height Proper Vent Connector PIPE/CHIMNEY ConnectionNo Interconnected Chimney Flues Tight CLEAN-OUT Doors and ConnectionsProper Chimney Bottom Level Tight JointsReduction of Clearances with Specified Forms of Protection Duct Work Supply air duct sizing Example OIL Tank & Piping WiringOIL Filter Page Initial Burner Operation III. Dealer Maintenance Yes Also Perform CAD Cell Check OUT Procedurerefer to Index YES Is the Nozzle PLUGGING? Replace Burner Effects of Pressure on Nozzle Flow Rate On START-UP CAD Cell Checkout ProcedureCleaning or Replacing Flue Pipes On SHUT-DOWNFollow initial burner operation procedures from section G

MO-425 specifications

The Thermo Products MO-425 is an advanced heating solution designed for both residential and commercial applications. Known for its efficiency and innovative features, the MO-425 stands out in the market for those seeking reliable performance in temperature control.

One of the key characteristics of the MO-425 is its energy efficiency. It utilizes cutting-edge technology that minimizes energy consumption while optimizing heating output. The unit is equipped with a high-efficiency motor that reduces electricity usage, making it an eco-friendly choice for consumers concerned about energy costs and environmental impact.

The MO-425 also boasts a robust construction designed for durability. Made from high-quality materials, the unit is built to withstand the rigors of frequent use while maintaining its performance over time. This reliability is complemented by an advanced heating element that provides consistent warmth, ensuring that users enjoy a comfortable environment regardless of weather conditions.

In terms of controls, the Thermo Products MO-425 features a user-friendly interface, allowing for easy adjustments to temperature settings. The digital thermostat enables precise temperature control, which not only enhances comfort but also contributes to energy savings. Additionally, the unit has programmable features, allowing users to set heating schedules according to their routines, further promoting efficiency.

Another notable feature of the MO-425 is its quiet operation. The design includes sound-dampening technology that reduces noise levels during operation, making it suitable for use in living spaces, offices, and other environments where peace and quiet are essential.

The MO-425 is also versatile, offering multiple installation options to accommodate various spaces. It can be mounted on walls or used as a portable unit, making it adaptable to different room layouts and heating needs. This flexibility ensures that users can find the ideal setup for maximizing warmth and comfort in their environments.

Additionally, the Thermo Products MO-425 is backed by excellent customer support. Users can rely on a robust warranty and access to assistance for any inquiries, ensuring a positive ownership experience.

Overall, the Thermo Products MO-425 is a top-tier heating solution that combines efficiency, durability, and user-friendly features. Whether for residential or commercial use, it addresses the critical needs of modern heat management, making it a valuable addition to any home or workspace.
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