vault backup: 2026-01-25 23:46:04

hvac-calculations.md

@@ -8,6 +8,7 @@ tags:
   - type/encyclopedia
   - authorship/original
 title: HVAC Calculations
+dg-publish: true
 ---
 # HVAC Calculations
 
@@ -23,7 +24,7 @@ abbreviated Btu<sub>IT</sub>
 
 $$
 \begin{align*}
-1 \text{Btu}_\text{IT} &= \left( 4.1868 \times 453.59237 \times{\frac{5}{9}} \right)~\text{J} \\
+1 \text{Btu}_\text{IT} &\equiv \left( 4.1868 \times 453.59237 \times{\frac{5}{9}} \right)~\text{J} \\
 &\approx 1055.056~\text{J}
 \end{align*}
 $$
@@ -34,7 +35,7 @@ a unit of power.
 
 $$
 \begin{align*}
-1 \text{MBH} &= 1000~\text{Btu/hr} \\
+1 \text{MBH} &\equiv 1000~\text{Btu/hr} \\
 &\approx 3.412~\text{W}
 \end{align*}
 $$
@@ -49,7 +50,7 @@ Unit of power
 
 $$
 \begin{align*}
-1 \text{TR} &= 12000~\text{Btu}_\text{IT}/\text{h} \\
+1 \text{TR} &\equiv 12000~\text{Btu}_\text{IT}/\text{h} \\
 &\approx 3516.853~\text{W}
 \end{align*}
 $$