II. GENERAL INSTRUCTIONS

A. VENTING:

The OHC furnace venting system must be installed by a qualified service person in accordance with local installation codes and these instructions. In the absence of applicable local codes, conform to the National Fuel Gas Code, NFPA 54/ANSI Z223.1 or latest edition.

Installation shall, at least, conform to the following requirements.

1.The exhaust vent/combustion air intake termination specified by Thermo Products, in this manual, shall be used.

2.All plastic pipe and pipefittings sourced to complete the exhaust vent and air intake systems shall be constructed of rigid PVC (polyvinyl chloride) plastic. All components shall have a wall thickness equivalent to Schedule 40 series materials.

In addition, all sourced PVC components shall be listed by a nationally recognized testing agency (e.g. NSF, UL, etc.) as conforming to one (1) or more of the following design standard.

PVC Pipe Designation

Design Standard

DWV ( Drain-Waste-Vent)

ASTM-D2665

Schedule 40

ASTM-D1785

3.The exhaust vent pipe and combustion air pipe shall be at least as large as the exhaust vent/ air intake pipe specified by Thermo Products. Size reduction is never permissible. The required exhaust vent/ air intake pipe size is 3”.

4.The furnace model series OHC shall not be common vented with any other appliance, including those burning solid fuels.

5.All horizontal runs of exhaust vent pipe shall slope upward at least ¼ inch per foot from the outlet of the furnace to the venter connection. This slope will permit proper drainage of the condensate.

6.The exhaust vent pipe shall be supported at every joint ( no more than 4-feet between supports) to prevent pipe blockage due to condensate trapped at a local low point, or sag, in the vent system.

7.The maximum permissible length of piping (consisting of a combination of straight pipe and a corresponding number of elbows) permitted is: (Each elbow equals 5 ‘ of straight pipe).

•55 equivalent feet, for the exhaust vent system,( eg. 25’ of straight pipe & 6 elbows)

•65 equivalent feet, for the combustion air intake system, (eg. 35’ of straight pipe & 5 elbows).

8.When counting pipe elbows, all elbows used in the exhaust

vent or combustion air intake systems must be considered. This includes all elbows, or equivalent pipefittings, used inside the furnace jacket. Allow 5’ for each elbow.

Note: Two (2), 450 elbows can be substituted for one (1), 900 elbow.

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Thermo Products PHCFA072DV4R operation manual II. General Instructions Venting
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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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