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

Position the open end of the filter rack so as to provide access for filter replacement. Once the filter rack is positioned correctly, scribe a line along the inside of the securing flange on three of the sides. To scribe a line on the fourth side (the open end), use the open end support as a guide.

Remove the filter rack and cut the return air opening in the casing. Now the filter rack can be anchored to the furnace with screws or pop-rivets through the securing flange of the filter rack.

Connect the return air plenum to the filter rack and slide the filter into place. Dimensions for adapting the return air plenum to the filter rack are provided (See Fig. 5).

Fig. 5: A typical filter rack and dimensions for the OH6FA072D*** furnace.

E. LIMIT POSITION AND LOCATION

cWARNING: The predetermined limit locations on all of the Thermo Pride oil fired furnaces have been tested and approved by Thermo Products, LLC. Any attempt to relocate these safety controls or replace these safety controls with a control that is not approved, or is incompatible, may result in personal injury, substantial property damage or death.

The unit listed in the table below must have the fan and limit control installed at the time of unit installation.

TABLE 2: Installation location of the fan and limit control for each furnace

Fig. 7: Limit location for OH6FA072D***

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Thermo Products OH65FA072D48R, OH65FA072DV4R, OH65FA072DV4B Limit Position and Location, Limit location for OH6FA072D
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OH65FA072D48R, OH65FA072D48B, OH65FA072DV4B, OH65FA072DV4R specifications

The Thermo Products OH65FA072DV4B, OH65FA072D48B, OH65FA072D48R, and OH65FA072DV4R series represent a significant advancement in the realm of heating and cooling systems. Designed for efficiency and reliability, these models are engineered to meet the diverse needs of residential and commercial applications.

One of the standout features across these models is their energy efficiency. Utilizing advanced heat pump technology, these units offer optimal heating and cooling performance while minimizing energy consumption. This is particularly beneficial in today’s environmentally conscious market, where reducing energy usage not only lowers utility bills but also lessens the overall carbon footprint.

The OH65FA series incorporates a variable-speed compressor, which plays a critical role in enhancing system performance. This technology allows the units to adjust their output according to the heating or cooling demand. As a result, the system operates more quietly and with greater energy efficiency, maintaining a comfortable indoor climate without unnecessary energy expenditure.

Another notable characteristic of these models is their robust construction. Built with high-quality materials, they are designed to withstand various environmental conditions, ensuring reliability and longevity. The units are also equipped with corrosion-resistant coatings, which provide additional durability, especially in coastal or humid areas.

Additionally, the OH65FA series features a user-friendly interface, allowing for easy temperature adjustments and programmable settings. Homeowners can customize their heating and cooling schedules, which not only provides comfort but also contributes to further energy savings.

In terms of installation, these units are designed with flexibility in mind. They can be easily integrated into existing systems or installed as standalone units. Their compact design means they occupy minimal space while still delivering powerful performance.

Finally, safety features are paramount in the design of the OH65FA series. Each unit includes built-in safeguards such as over-temperature protection and system diagnostics, ensuring safe operation at all times. This focus on safety, combined with advanced technology and energy efficiency, makes the Thermo Products OH65FA072DV4B, OH65FA072D48B, OH65FA072D48R, and OH65FA072DV4R series an ideal choice for anyone seeking reliable and efficient climate control solutions.
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