The ABC's of VRF: A Green HVAC Technology that Provides an Ideal Green School Solution

106 Pages·2014·8.54 MB·English

by  Roy Kuczera

The ABC’s of VRF:
A Green HVAC Technology
An Ideal Green School Solution

Presented by:
Fujitsu General America, Inc.
What to look for in a Green HVAC solution?
What if your HVAC system could provide
• Individual temperature controlled spaces
• Simultaneous heating and cooling
• Better comfort to occupants
• Up to 30% Energy Savings

What if you could do all of this with a single system?
• An investment in a Variable
Refrigerant Flow (VRF) System is
an investment in your community.
• VRF is more efficient than
conventional systems, providing
financial savings to the school for
many years.
• This state-of-the-art technology
has the ability to save up to 30%
on energy bills.
• Provides schools with year-round
comfort, and can also provide the
fresh air necessary for student
health and “library” quiet operation
for improved productivity.

VRF is…
• Modular – Add outdoor
units to meet load. Add
capacity as budget allows.
Easily install in phases.
• Scalable – from as little
as six-tons to hundreds of
tons
• Zoned – built in zoning
allows you to condition
spaces at different
temperatures at the same
time. Condition only the
space you are using at a
given time
VRF is…
• Centrally Controlled –
Control all independent
temperature zones from a
single location in addition to
local control.
• Advanced Scheduled -
Maximize your efficiency by
applying scheduling based on
changing occupancy and use
• Remotely Monitored –
Monitor system operation and
maintenance remotely
• Energy Savings Managed -
Apply a variety of demand
response solutions
•
Healthier Facility
• VRF systems can be integrated with fresh air
systems to ensure that air quality meets the needs
of the teachers and students.
•
Central Control
• Powerful central control can monitor and control
individual schools, or an entire college campus,
from a single location.
•
Energy Savings Management
• Available advanced scheduling and remote
monitoring provides convenient management of
energy savings.
•
Zoning

• Save energy by only heating or cooling the
classrooms that are occupied. Set temperature can
be pre-programmed to meet the energy budget for
the school district.
•
Comfort
• VRF helps achieve a healthier, quieter, more
comfortable and productive learning environment.
VRF HVAC system (as quiet as19 dB) creates a
much better learning environment for students.
Fujitsu Energy Modeling Study
Energy Modeling
• Energy modeling helps building designers, engineers,
and other professionals identify a cost effective solution
intended to cut annual utility costs.
• Fujitsu’s case study looks at the energy consumption
impact of the VRF system relative to three typical
“base-case” HVAC systems: four pipe, water source
heat pump (WSHP), and variable air volume (VAV).
• The study details the building type, location, and
materials used in the building construction with the
purposes of estimating the building energy usage,
HVAC equipment energy consumption, annual
operating cost for the building and VRF equipment.
Fujitsu Energy Modeling Study
The Software
• The EnergyPro™ Variable Refrigerant Flow (VRF) Heat
Pump computer model is a building energy performance
modeling software with a built-in manufacturer’s
performance data algorithm.
• EnergyPro™ calculates the heating and cooling load
required to provide comfortable climate environment in the
space.
• The software performs hourly energy analysis and simulates
the energy conditions of a building.
• These simulated conditions are compared to baseline
building that is in compliance with Title 24, Part 6 of the
California Code of Regulations for building construction or
ASHRAE 90.1 standards.