173 lines
6.2 KiB
Markdown
173 lines
6.2 KiB
Markdown
---
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title: '{{ document_title }}'
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author: '{{ author_name }}'
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date: \today{}
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mainfont: DejaVu Sans
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documentclass: article
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fontsize: 12pt
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# NOTE: The applegreen is a custom color defined in resources/head.tex
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linkcolor: applegreen
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urlcolor: applegreen
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abstract: |
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**Prepared For:**
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{{ customer.name }}
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{{ customer.address.street }}
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{{ customer.address.city }}, {{ customer.address.state }} {{ customer.address.zip }}
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```{=latex}
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\begin{center}
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```
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\
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\
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\
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[{ width=30% }]({{ company.website }})
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```{=latex}
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\end{center}
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```
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---
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<!-- NOTE: Table of contents section only needs changed if new sections are
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added.
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-->
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# Contents
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1. [Introduction](#introduction)
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1. [Airflow Assessment](#airflow-assessment)
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1. [Your Static Measurements](#your-static-measurements)
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1. [Static Pressure Forecast](#static-measurements-forecast)
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1. [Summary](#summary)
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1. [Definitions](#definitions)
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1. [IAQ]
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1. [TESP]
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1. [WC][wc]
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## Introduction
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Thank you for having us to your home for a system airflow assessment. I hope that it was beneficial. We learned a lot
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about your system during the brief visit. So, let’s jump in to some of the things discovered.
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Below is a summary of the system measurements and some recommendations. As part of the service we ran airflow test and
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forecasting.
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Once you read the report you’ll have 3 options: do nothing, pick and choose upgrades, or do more planning for more
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difficult goals or complex projects. These options are discussed at the end of the report as well as our leanings for
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your home.
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\newpage
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## Airflow Assessment
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While on site, we also measured the total system airflow and static pressure of the system. Static pressure is
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equivalent to the blood pressure of your system and gives us a better understanding of the overall ability for the
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system to provide the proper amount of airflow, as well as how much it may struggle to do so.
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Static pressure is the amount of resistance that the blower has to work against in order to move air through the system.
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Things that have an effect on the static pressure of the system include, air filters (size and type), duct sizes, amount
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of ducts, length of ducts, duct fittings and transitions, as well as internal system components. Each component of the
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system has a resistance associated with it that the blower has to overcome, by taking some key measurements we are able
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to determine the [TESP] of the system. While there are several static pressures in the system, when we talk about static
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pressure we are generally referring to [TESP].
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Static pressure ([TESP]) has a range of _low_, _acceptable_, or _high_. While these numbers are specific to the actual
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equipment, most manufacturers follow similar standards. For the sake of simplicity, 0.5" [wc] or under is an
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_acceptable_ target, 0.8" [wc] is generally the max acceptable static pressure (although we like to stay well below this
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if possible), and above 0.8" [wc] is considered _high_ and should be addressed. _Low_ is generally not common and is
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rarely problematic, so it is not focused on much.
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<!-- NOTE: Force a new page here, for images and sub-section heading to be on same page -->
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\newpage
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### Your Static Measurements
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{height=50%}
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<!-- WARNING: Summarize the static measurements here -->
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The above image is a snapshot of the static pressures recorded for your system. This shows that the static pressure of
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your system is very high (1.114" [wc]). The primary culprits for the high static pressure are that the filter is
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undersized for the airflow required and the return duct sizing is small.
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These measurements were taken in the heating mode because your system does not currently have air conditioning.
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Currently the heating airflow is on the low side for what is required for your system (1200 CFM would be ideal). This
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should be adjusted if possible during the install to get better performance and efficiency out of the system, given that
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some static pressures can be improved during the project.
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<!-- NOTE: Force a new page here, for images and sub-section heading to be on same page -->
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\newpage
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### Static Measurements Forecast
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{height=50%}
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<!-- WARNING: Summarize the forecast results below. -->
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The above image is a snapshot is of a forecast of the static pressures after adding air conditioning. It should be noted
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that these measurements are based solely on the airflow required for cooling mode, not for heating mode (in other words,
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heating mode is going to be higher because the airflow requirement is higher).
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This shows that with an upgraded filter we can get the static pressure below the 0.8" [wc] max target while in cooling
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mode.
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\newpage
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## Summary
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The purpose of the system airflow assessment is to help find the correct airflow or improvements
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that are required to increase the system longevity and efficiency.
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<!-- WARNING: Add summary here -->
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Regards,
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{width=20%; float=left}
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\
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\
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[Here is a link to all the documents][document-folder]
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> [!NOTE:]
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>
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> Documents are stored on our internal servers and links to your documents expire in approximately 30 days from the
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> creation of your report, for security reasons. We recommend that you download any documents you would like to keep for
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> your records. If you have troubles then we can send the documents via email or extend the expiration date of the
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> provided document links.
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<!-- prettier-ignore-start -->
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<!-- NOTE: These are reference links for short form linking in the document.
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This allows all the links to be changed / updated in one place.
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However most do not need updated unless sections are added, besides the
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document links, which are defined / setup in vars.sh.
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-->
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[IAQ]: #iaq-definition "IAQ"
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[wc]: #wc-definition "wc"
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[TESP]: #tesp-definition "TESP"
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<!-- IMPORTANT: Take screen shots of the TrueFlow reports and add to the img
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folder with names / path setup in vars.sh -->
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<!-- default is img/trueflow.png -->
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[trueflow-image]:
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<!-- default is img/forecast.png -->
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[trueflow-forecast-image]:
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<!-- IMPORTANT: These links need to be updated. -->
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[document-folder]:
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<!-- prettier-ignore-end -->
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```
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```
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