HVAC Load Calculation with TRACE 700 Software

Create a zone plan for Trace 700 by gathering architectural drawings, detailing spaces in a space sheet, and calculating sensible and latent heat gains with occupancy, loads, and exposure data.

Learn to add weather data in trace 700 using ASHRAE 2021 guidance, selecting locations, applying weather overrides, and entering cooling/heating dry-bulb temps, clearness, ground reflectance, and 400 ppm CO2.

Configure TRACE 700 internal loads templates by defining people density, sensible and latent heat, lighting load, workstation counts, and miscellaneous loads for school buildings, using ASHRAE guidelines.

Configure airflow templates with ventilation, infiltration, and VAV minimum flow, and set thermostat templates with ASHRAE standard 62.1-2004 cooling/heating setpoints and humidity for hvac load calculations.

Explore construction templates in TRACE 700 to set u factors for slabs, roofs, walls, and partitions using ASHRAE data.

Learn how room templates in Trace 700 act as a super template, automatically applying four templates to a room while keeping defaults, and how to create and close templates.

Enter room data in TRACE 700 using the single sheet tab, name rooms, enter length and width, and apply the template to capture walls, roofs, and internal loads.

Enter room details in the rooms tab by specifying each room’s total area or length and width, then apply height and slab defaults using the space sheet values.

Enter roof details in Trace 700's create rooms screen, assign roof and skylight loads, and use equal flow to auto-set roof width, pitch, and direction.

Learn to enter exposure wall and window details in Trace 700, calculate net wall areas, and set wall directions for classrooms and offices.

Enter internal load details for classrooms and offices in Trace 700, using Ashrae occupant density of 30 people and 20 square feet per person, with miscellaneous and equipment loads.

Configure the air flow tab in create room screen to set ventilation and infiltration and apply ASHRAE 62.1 standards, CLG EZ and HTG EZ values for classrooms, offices, and lobbies.

Fill partition and floor details in TRACE 700 for classrooms, canteen, and lobby, distinguishing conditioned spaces and calculating exposed perimeter with 8 inch slab floors and loss coefficients around 0.5–0.68.

Create an airside system in Trace 700 by selecting system category and type on the selection tab, then apply the settings to size fans, coils, and room loads.

Explore creating system options in Trace 700, including evaporative cooling, economizers, and stage 1-2 air-to-air energy recovery, with focus on heat recovery wheels and system optimization.

Configure a dedicated outdoor air system, choosing none or a dedicated ventilation unit with fixed set point, and specify return or outdoor deck location.

Learn to use the design temperature tab to set design cooling and heating supply temperatures, min/max constraints, and duct temperature difference in TRACE 700, including dehumidification options and climate-based guidelines.

Learn to configure systems-fan override in TRACE 700 by selecting a fan cycling schedule (including occupancy-based cycling), setting static pressure for an AHU, and applying changes.

Explore the coil tab in Trace 700 to set capacity overrides for main cooling and heating coils and apply internal heat gain and lighting diversity factor.

Explore the air side system schematic, featuring a vav terminal box, preheat coil, cooling coil, and primary fan, with damper, actuator, and bms signals for zone heating and cooling.

Group rooms into zones and assign them to an airside system in TRACE 700 using drag-and-drop to build the room–zone–system tree for sizing coils and fans.

Learn to calculate and view TRACE 700 results by selecting design months, load parameters, and cooling and heating methodologies, including RTS ASHRAE tables, CLTD/CLF/ASHRAE TFPM, infiltration, and daylight saving.

Export and customize your Trane Trace 700 load calculation report in PDF or Excel, selecting design cooling load, load air flow, peak cooling, and room checks for a school building.