Product specifications

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This guide will present the end-user, designer and installer
with a better understanding of the Warm Air freewatt
®
PLUS System and its product data. A properly designed
warm air heating system should provide comfort, effi ciency
and optimize equipment durability.
The Warm Air freewatt
®
PLUS system has been developed
to replace an existing warm air heating system and provide
home energy features and benefi ts to enhance home
comfort and security.
WHAT IS freewatt
®
?
freewatt
®
is Micro-CHP. CHP is short for Combined Heat
and Power. CHP has been widely practiced on an industrial
scale for many years. The term Micro-CHP is an industry
term used to categorize smaller CHP systems, which
are typically smaller than 10 kilowatts electric power
output. The freewatt
®
system is a new integrated
approach to small-scale combined heat and power for an
individual home.
WHAT IS freewatt
®
PLUS?
freewatt
®
PLUS brings Micro-CHP to next level. Micro-
CHP offers many features and benefi ts to the homeowner,
one major feature not often included is back-up power.
Our newest generation of freewatt
®
PLUS offers the
homeowner comfort and security at higher level by
providing green back-up power in a quiet and small
package.
WHAT IS ADAPTIVE LOAD MANAGEMENT (ALM™)?
freewatt
®
PLUS uses the latest generation of load
management to ensure highest energy conservation and
reduced environmental impact, while providing back-
up power. ALM intelligently monitors power usage and
automatically sheds and reconnects loads to prevent
generator overload, while maximizing generator operating
effi ciency.
Figure 1 - Warm Air freewatt
®
PLUS System, Model
WAJ
Figure 2 -APC Universal Transfer Switch & Main
Service Panel
PRODUCT SPECIFICATIONS AND PERFORMANCE GUIDE
TABLE OF CONTENTS
Features/Benefi ts ........................................................................................................................ 3
Model Number Decoding ............................................................................................................... 4
Supplied Accessories .................................................................................................................... 4
Optional Accessories ................................................................................................................... 4
Product Description - Model WAJ/WDJ ............................................................................................5
System Design ............................................................................................................................ 9
Performance Data .......................................................................................................................11
Selection Example ......................................................................................................................15
Typical Confi guration ...................................................................................................................19
Compatible Water Heater Table .....................................................................................................21
Application Data .........................................................................................................................22
Typical Electrical Schematics ........................................................................................................25
Guide Specifi cation ....................................................................................................................31