INSTALLATION GUIDE
General Installation Information ................................................................................................ 2
Nomenclature ................................................................................................................................... 6
Water Quality ................................................................................................................................... 13
Hot Water Generator Connections .......................................................................................... 14
Electrical Connections .................................................................................................................. 15
Electronic Thermostat Installation ........................................................................................... 16
Blower Performance Data ........................................................................................................... 17
Dimensional Data ............................................................................................................................ 18
Physical Data .................................................................................................................................... 20
Reference Calculations ................................................................................................................. 21
Operating Limits.............................................................................................................................. 21
Revision Guide ................................................................................................................................. 23
WARNING: Before performing service or maintenance
operations on the system, turn off main power switches
to the unit. Electrical shock could cause serious personal
injury.
WARNING: All products are designed, tested, and
manufactured to comply with the latest publicly released
and available edition of UL 60335-2-40 for electrical
safety certification. All field electrical connections must
follow the National Electrical Code (NEC) guide standards
and / or any local codes that may be applicable for the
installation.
WARNING: Only factory authorized personnel are
approved for startup, check test and commissioning of
this unit.
INSTALLER: Please take the time to read and understand
these instructions prior to any installation. Installer must
give a copy of this manual to the owner.
Definition of Warnings and Symbols
DANGER
WARNING
CAUTION
NOTICE
R-454B / 60Hz
WARNING
Indicates a situation that results in death or
serious injury.
Indicates a situation that could result in
death or serious injury.
Indicates a situation that could result in
minor or moderate injury.
Indicates a situation that could result in
equipment or property damage.
For the User
This appliance is not intended for use by persons (including
children) with reduced physical, sensory, or mental capabilities,
or lack of experience and knowledge, unless they have
been given supervision or instruction concerning use of the
appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play
with the appliance.
Keep this manual in a safe place in order to provide your
service personnel with necessary information.
NOTICE
NOTICE: To avoid equipment damage, do not leave the system
filled in a building without heat during cold weather, unless
adequate freeze protection levels of antifreeze are used. Heat
exchangers do not fully drain and will freeze unless protected,
causing permanent damage.
IGW3-0019S
WARNING