- A -

About Rhvac Online

Account Settings

Addendum A

Addendum B

Addendum C

Addendum D

Adequate Exposure Diversity

AED

Air Conditioners

Air Density

Allow Import

IconGeneral Project Data
IconImporting Another User's Project
IconNew Project

Announcements

Area of ductwork

ASHRAE 62.2 Ventilation

ASHRAE Standard 152 duct surface area

- B -

Barometric Pressure

Boilers

Btuh per Square Foot

Building Orientation

Building Rotation

- C -

Calculated equivalent length of fitting

Calculation Methodology

Calculation Methods

Change Material

Change Material Dimensions

Chilled water flow rate

City

Clg. coil TD

Client

Colebrook equation

Company

Construction Tightness

Contents

Converting Air Changes per Hour to CFM (Infiltration)

Converting Air Changes per Hour to CFM (Ventilation)

Cooling Supply CFM Requirement Per Room

Copy Project

Copying other projects

IconCopy Project
IconNew Project

Custom

Custom Door dialog

Custom Fittings dialog

Custom Floor dialog

Custom Glass dialog

Custom Roof dialog

Custom Wall dialog

- D -

Daily Range

Data for Equipment

Date

Default duct properties

Default Room Data

Demo videos

Demonstration limits

Design Conditions

Designed By

Dimensions

Diversity factors for equipment loads

Do's and Don'ts

Dry Bulb

Duct Data Example

Duct Defaults for System

Duct Feeds Room

Duct Load Factors

Duct Loads

Duct Material

Duct maximum velocity

Duct Schedules

Duct Sizing

Duct Surface Area

Duct Surface Area Calculator

Duct Surface Area Equations

Duct System Data

Duct Tree Options

- E -

Edit Favorites Recent Custom

Edit Fitting

Elbow Bend Angle

Elbow Radius to Diameter Ratio

Elevation

Elevation Adjustment Factors

Elevation Derating

Entering clg. coil DB

Entering clg. coil WB

Entering Coil Condition for Manual S

Entering htg. coil DB

Equations (List)

Equations.

Adequate Exposure Diversity

AED

Air Density

Barometric Pressure

Colebrook equation

Converting Air Changes per Hour to CFM (Infiltration)

Converting Air Changes per Hour to CFM (Ventilation)

Cooling Supply CFM Requirement Per Room

Equivalent Circular Diameter (Rectangular)

Friction Factor

Grains Difference

Heat Gain for Glass Not Shaded by an Overhang (Including Glass Doors and Skylights)

Heat Gain for Glass Shaded by an Overhang

Heat Gain for Walls  Doors  Roofs  and Floors

Heat Loss Due to Ductwork

Heat Loss due to Infiltration and/or Ventilation for the Entire Building

Heat Loss Due to Walls  Partitions  Doors  Glass  Roofs  and Floors

IconHeat Loss Due to Walls - Doors - Glass - Roofs - and Floors
IconHeat Gain and Loss For Partition Walls
IconHeat Loss Due To Hot Water Piping
IconHeat Gain Due To Blower Motor

Heat Loss for Entire Building

Heating Supply CFM Requirement Per Room

Height of Unshaded Portion of Glass

Latent Heat Gain Due to Equipment or Appliances

Latent Heat Gain due to People

Net Area of Roof

Net Area of Walls

Reynolds number

Sensible Heat Gain due to Ductwork

Sensible Heat Gain Due to Equipment or Appliances

Sensible Heat Gain Due to Lights

Sensible Heat Gain due to People

Sensible Heat Gain of a Room

Total Building Latent Heat Gain Due to Infiltration or Ventilation

Total Building Sensible Heat Gain Due to Infiltration or Ventilation

Total CFM Requirement for Cooling

Total Heat Loss Due to the Structural Components of a Room

Total Heat Loss Per Room

IconHeat Loss Through A Slab
IconHeat Loss For Below Grade Walls
IconTotal Heat Loss Per Room

Total Latent Heat Gain of a Building

Total Sensible Heat Gain due to Structural Components of a Room

Total Sensible Heat Gain of a Building

Total Supply CFM Requirement for Heating

Total Tonnage Required

Velocity

Velocity pressure

Equipment

Equipment Cooling Loads window

Equipment Data

Equipment loads

Equivalent Circular Diameter (Rectangular)

Equivalent length of fitting, calculated

Evaluate Project

Example of Duct Data

Exhaust

Expanded Ratings Data

- F -

FAQ

Favorites

Favorites, Recent, Custom Materials Upload from Rhvac 9

Find HVAC Equipment

Fireplaces

Fireplaces and Infiltration

Fitting Editing

Fitting Elbow Bend Angle

Fitting Elbow Radius to Diameter Ratio

Fitting equivalent length, calculated

Fitting Group

Fitting Select

Fittings grid

Formulas

Frequently Asked Questions

Friction Factor

Furnaces

- G -

General Project Data

Global Dimension Change

Global Duct Schedules

Global Material Change

Globally changing duct properties

Grains difference - specific

Grains Difference Equation

Grains difference FAQ

Ground Source Heat Pumps

Group for Fitting

- H -

Heat Gain and Loss For Partition Walls

IconHeat Gain and Loss For Partition Walls
IconHeat Loss Due To Hot Water Piping
IconHeat Gain Due To Blower Motor

Heat Gain Due To Blower Motor

Heat Gain for Glass Not Shaded by an Overhang (Including Glass Doors and Skylights)

Heat Gain for Glass Shaded by an Overhang

Heat Gain for Walls  Doors  Roofs  and Floors

Heat Loss Due to Ductwork

Heat Loss Due To Hot Water Piping

IconHeat Loss Due To Hot Water Piping
IconHeat Gain Due To Blower Motor

Heat Loss due to Infiltration and/or Ventilation for the Entire Building

Heat Loss Due to Walls  Partitions  Doors  Glass  Roofs  and Floors

IconHeat Loss Due to Walls - Doors - Glass - Roofs - and Floors
IconHeat Gain and Loss For Partition Walls
IconHeat Loss Due To Hot Water Piping
IconHeat Gain Due To Blower Motor

Heat Loss For Below Grade Walls

Heat Loss for Entire Building

Heat Loss Through A Slab

IconHeat Loss Through A Slab
IconHeat Loss For Below Grade Walls

Heat Pumps

Heating Supply CFM Requirement Per Room

Height of Unshaded Portion of Glass

Help

IconTechnical Support
IconTraining Services

Help options

Hot water flow rate

Hot Water Piping Load

IconHot Water Piping Load
IconHot Water Piping Load

Htg. coil TD

- I -

Importing Another User's Project

IconGeneral Project Data
IconImporting Another User's Project
IconNew Project

Infiltration

Infiltration adjustment

Infiltration Dialog

Infiltration from Fireplaces

Internal loads

Interpolation Values for Manual S

- L -

Lat. gain

Latent equipment loads

Latent Heat Gain Due to Equipment or Appliances

Latent Heat Gain due to People

Latitude

Limits of demo version

Load Preview

Loose

- M -

Manual D

Manual D Ductsize Online

Manual J Do's and Don'ts

Manual S

IconEquipment Data
IconManual S Overview
IconManual S Report Section

Manual S Entering Coil Condition

Manual S Overview

Manual S Performance Data

Manual S Performance Data Examples

IconManual S Performance Data Example 1
IconManual S Performance Data Example 2
IconManual S Performance Data Example 3
IconManual S Performance Data Example 4
IconManual S Performance Data Example 5

Manufacturer Performance Data

Margins for reports

Material Change

Materials

Materials for Ducts

Maximum Velocity

Mirror Rooms

Multiple Duct Properties

My Account Settings page

My Main Page

- N -

Net Area of Roof

Net Area of Walls

New Project page

Nominal equivalent length of fitting

- O -

Options

Orientation

Outdoor Design Conditions

Overview of Manual S

Overview of Rhvac

- P -

Page Setup

People Loads

Percent Sensible Capacity

Permit Number(s)

Piping

IconHot Water Piping Load
IconHot Water Piping Load

Preview Reports

Printing Reports

Program Overview

Project

Project Access Code

IconGeneral Project Data
IconImporting Another User's Project
IconCopy Project
IconNew Project
IconMy Account Settings

Project Data

Project Duct Schedules

Project. Menu

Default Room Data

Load Preview

Room Data

- Q -

Questions

- R -

Radiant Floor Properties

Read Me

Recent

Recent Update History

Renew subscription to Rhvac Online

Report margins

Reports

Req htg. airflow

Req. clg airflow

Resubscribe to to Rhvac Online

Return Runout Room Assignment

Reynolds number

Rhvac 9 Materials Upload

Rhvac Desktop

Rhvac Online Options

Room CFM sum not equal to system

Room Data

Room Dimensions

Room Duct Feeds

Rotate or Mirror Rooms

Rotation

Runout

Runout Airflow

IconSelect Room Duct Feeds
IconSelect Rooms for Return Duct

- S -

Select Equipment

Select Fitting

Select Fitting Group

Select Reports

Select Room Duct Feeds

Select Rooms for Return Duct

Selecting Equipment

Selecting Materials

Sen. gain

Sen. loss

Sensible equipment loads

Sensible Heat Gain due to Ductwork

Sensible Heat Gain Due to Equipment or Appliances

Sensible Heat Gain Due to Lights

Sensible Heat Gain due to People

Sensible Heat Gain of a Room

Sensible Heat Ratio

Set Multiple Duct Properties

SHR

SIDB

Simple Mode

SIRH

SODB

SOWB

STD

Subscribe to Rhvac Online

Sum of Room CFM not equal to system

Summer Grains Difference

Surface Area of Ducts

Surface area of ductwork

System Concept Warnings

System Data (Duct Design)

System Data (Load Calc)

- T -

Tabular Manual D Ductsize

Tabular Manual D Ductsize Defaults

Technical Support

IconTechnical Support
IconTraining Services

Temperatures

Tightness

Title

TMDD

Tons on reports

Total Building Latent Heat Gain Due to Infiltration or Ventilation

Total Building Sensible Heat Gain Due to Infiltration or Ventilation

Total CFM Requirement for Cooling

Total Heat Loss Due to the Structural Components of a Room

Total Heat Loss Per Room

IconHeat Loss Through A Slab
IconHeat Loss For Below Grade Walls
IconTotal Heat Loss Per Room

Total Latent Heat Gain of a Building

Total Sensible Heat Gain due to Structural Components of a Room

Total Sensible Heat Gain of a Building

Total Supply CFM Requirement for Heating

Total Tonnage Required

Training Services

IconTechnical Support
IconTraining Services

Trunk

Tubing Spacing

Tutorial for Duct Design

- U -

Units

Updates

Upload Favorites, Recent, Custom Materials from Rhvac 9

Upload Rhvac Project

- V -

Velocity

Velocity pressure

Ventilation

Ventilation Rate

Video demos

- W -

Watch video demos

Water

IconHot Water Piping Load
IconHot Water Piping Load

Weather and Shielding Factor

Welcome

Wet Bulb

Wet Bulb Temperature

WIDB

WODB

WSF

WTD

- Z -

Zone cooling & heating percentages