1.Call for heat TSTAT closes sending 24 volts to “W”.

2.The 24 volt relay closes sending 115v to the inducer in the ventor assembly.

3.The inducer comes up to speed and provides flow and pressure which closes the pressure switch.

4.Upon this pressure switch closing, T & T are closed to bring on the burner.

To initially fire the oil burner, proceed in the following manner:

a.Turn the disconnecting switch, which provides power to the appliance, to the "OFF" position.

b.Set the room thermostat above room temperature.

c.Verify the oil tank is filled with sufficient fuel oil to operate the appliance.

d.Open all valves in the oil supply line to the burner.

e.Remove the burner compartment cover from the appliance.

f.Turn the disconnecting switch to “ON”.

g.Prime the pump to remove air in the oil supply line.

•See Riello Burner Manual included.

h.The burner has been installed with the pump pressure pre-set to 145 psi, the turbulator set at 3 and the air gate set to 3. These are general preliminary settings and adjustments should be made to ensure clean combustions for this application.

i.Replace burner cover.

j.The air adjustments can be made by removing the plastic plug on the top right side of the cover. Turning the screw counter clockwise will increase the amount of combustion air. Turning the screw clockwise will decrease the amount of combustion air. A small ¼ “ diameter hole should be drilled in PVC just outside the furnace to insert the combustion sample hose. Remember to seal hole after acquiring flue gas sample.

5.Burner now operates and can be properly set-up for clean combustion.

6.Blower comes on after delay on time.

Notice: To achieve proper combustion instruments must be used to secure CO2 or O2 readings and smoke samples.

Notice: Heat exchanger oil will burn off on initial firing creating an unpleasant odor. To prevent this odor from occurring more than once, it is suggested the heating section be allowed to run for 30 minutes, or until odor has dissipated.

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Thermo Products PHCFA072DV4R operation manual
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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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