Thermo Products PHCFA072DV4R operation manual Heat Exchanger Cleaning Instructions

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•Visually inspect the 4 heat exchanger tubes for excessive carbon (soot) build-up. Refer to heat exchanger section of the manual.

5.Oil Filter – Replace the supply line oil filter cartridge with a new filter of the same type and rating. Clean the body of, or mounting plate for, the oil filter.

6.Labels and Markings - Clean all appliance labels, markings, and instruction plates, as necessary, and verify that all are still legible. Any illegible or missing markings must be replaced. Replacements can be obtained by contacting Thermo Products.

B.HEAT EXCHANGER: CLEANING INSTRUCTIONS

WARNING: A qualified heating contractor must clean the heat exchanger.

At least once a year, inspect the heat exchanger for evidence of corrosion, pitting, warpage, deterioration, and carbon (soot) build-up. A layer of soot on the inside of the heat exchanger will act as an insulator and reduce heat transfer, resulting in less heating efficiency.

Also, look for loose or deteriorated gaskets and insulation around the vent pipe, the burner, and accessible areas of the heat exchanger. If this inspection indicates heat exchanger cleaning is necessary, follow the heat exchanger cleaning instructions below.

WARNING: THE HEAT EXCHANGER MUST BE CLEANED BY A QUALIFIED SERVICE PERSON.

It is important to inspect and clean the heat exchanger once a year, or as necessary, to remove any build- up of soot. A layer of soot on the inside of the heat exchanger will act as an insulator and reduce heat transfer, resulting in less efficiency.

1.To clean the heat exchanger, first turn off all power to the unit. Remove the vent connector, the burner, and the burner mounting plates. Then place the heat exchanger cleaning shelf on the 3 bottom bolts as pictured. (See figure 11).

2.With access to the inside of the heat exchanger through the burner area, it is possible to use a long, flexible wire brush and an industrial type vacuum cleaner to remove any soot build-up. NOTE: A one inch (outside diameter) vacuum cleaner hose will fit into the tubes.

To vacuum and brush the tubes of the heat exchanger, go through the front openings in both directions, as shown in figure 12 on the next page.

3Remove front cover of heat recovery coil by removing all of the mounting screws. Then carefully pry the cover loose taking care not to bend the cover. Remove a couple of turbulators to give visual inspection of both the tube and tabulator. If excess build-up of soot is found, the secondary coil will need thoroughly cleaned.

4.The entire heat exchanger can be removed from the front by removing the separator. Next remove both side block-off baffles. Then disconnect the drain hose. The heat exchanger will now be able to be pulled straight out of the furnace with the aid of the two back support wheels.

5.The rear coil cover should now be removed as done in #3. Next remove all turbulators. The secondary can now be thoroughly brushed and cleaned.

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Contents OHCFA072DV4R OIL Fired FurnaceContents = Front = Highboy D = DownflowWARNING and Cautions Safety SectionCAUTION do not Attempt to Start the Burner When Page Codes and Clearances Non-combustible material Combustible materialHighboy OHCFA072DV4RII. General Instructions Venting Fig-1 Fig-2 Installation of VentorFig-3 Page Fig-4 Condensate Drain Line ConnectionsDuct WORK/AIR Conditioning Air Filter Mounted External to Furnace OHC Maximum Model Number Filter Type Air VelocityFt/min Burner Specifications and Applications Burner InstallationLimit Position and Location Fig-7Riello OIL Tank and PipingBTU/HR OHCFA072DV4R 75,000 72,000Page Electrical Connections Electrical WiringRoom Thermostat Electronic Air Cleaner EAC and Humidifier Installation Post-Purge TimerBlower Motor Speed Selection Thermostat Anticipator SettingAlterations REQ’D for A/C @ Design External Static Pressure OHCFA072DV4Blower Controller Information for ECM Motor Terminal Definitions & Field WiringInputs Outputs Operating Modes On and OFF Blower Delay Time Switch Settings Startup Procedures Trouble ShootingDiagnostic Features Sequence of Operation for the OHC To Turn Off Oil to AppliancePage Page Setting Supply Air Temperature Rise Adjustment Of Heat Input RateCheckout Procedure III. Users Information Section Filter Cleaning and LocationInspection Areas  Caution do not Attempt to Make Repairs YourselfIV. Installers Instructions to User General Inspection Dealer Maintenance Safety During Servicing and InspectionHeat Exchanger Cleaning Instructions Page Fig-12 Fig-13 Electrical System Filter maintenance procedureSUPPLY/RETURN AIR Blower SUPPLY/RETURN AIR FilterExtended Appliance Shutdown Filter replacementOn Shutdown On Startup VI. HOMEOWNER/USER Information and Routine Maintenance Fig-16 Page Page Page Page Page Page Customer Appendix a Replacement Parts OHC BF3 Riello Burner Page Appendix B Wiring Diagram

PHCFA072DV4R specifications

The Thermo Products PHCFA072DV4R is a cutting-edge heating and cooling solution designed for modern residential and light commercial applications. This unit stands out due to its efficient performance and advanced technology. One of the most remarkable features of the PHCFA072DV4R is its energy efficiency. It boasts a high SEER rating that ensures reduced energy consumption without sacrificing comfort, making it an environmentally friendly choice for homeowners.

This system utilizes an inverter-driven compressor, which allows for variable speed operation. This means that the unit can adjust its output to match the specific heating or cooling needs of a space, providing more consistent temperatures and enhanced comfort. Additionally, this inverter technology minimizes noise levels, making the PHCFA072DV4R a quieter option compared to traditional fixed-speed systems.

Another noteworthy characteristic of the PHCFA072DV4R is its advanced filtration system. It is equipped with high-efficiency filters that effectively capture dust, pollen, and other airborne particles, ensuring improved indoor air quality. For those who suffer from allergies or have respiratory issues, this feature can provide significant relief.

The unit offers a user-friendly interface with a smart thermostat that enables users to control the system remotely. Through a mobile app, homeowners can adjust settings, set schedules, and monitor energy usage from anywhere, which adds a layer of convenience to the overall user experience.

Additionally, the PHCFA072DV4R is built with durability in mind. Its robust construction and high-quality materials ensure long-term reliability, reducing the likelihood of costly repairs. It also comes with a warranty that reflects the manufacturer's confidence in the product's performance.

Overall, the Thermo Products PHCFA072DV4R encapsulates efficiency, comfort, and advanced technology in a single package. Its ability to adapt to varying conditions, combined with features focused on air quality and ease of use, make it a prime choice for anyone looking for a versatile heating and cooling solution. This unit not only meets the demands of today's consumers but also aligns with sustainable practices, making it an ideal addition to any home or business.
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