Chapter 3 - Category Iv (Indoor Air) Installation Of Vent/Air Piping; Fig. 14 - Ventilation And Combustion Requirements Sticker Placed On The Appliance - IDEAL Exalt Solo 110 Manual

CHAPTER 3 - CATEGORY IV (INDOOR AIR) INSTALLATION OF VENT/AIR PIPING

The EXALT boiler is classified as a Category IV appli-
ance. A Category IV appliance utilizes uncontaminat-
ed indoor or outdoor air (surrounding the appliance)
for combustion. A sticker, shown in Fig. 14 below, is
placed on the boiler to identify the appliance classifi-
cation and the applicable ventilation and combustion
air requirements.
A direct vent installation uses the outdoor air. Air sup-
ply, combustion chamber, heat exchanger and evacu-
ation of POC (products of combustion) for this type of
appliance is sealed with respect to the room in which
the appliance is installed.
An indirect installation uses uncontaminated indoor air
for appliance combustion.
WARNING
In the case of Indirect vent installation, the
space must be provided with ventilation /
combustion air openings properly sized for
all make-up air requirements (exhaust fans,
clothes dryers, fireplaces, etc.) and the total
input of all appliances, including the EXALT
when located in the same space.
Failure to provide or properly size the
openings can result in substantial property
damage, serious injury, or death.

Fig. 14 - Ventilation and Combustion Requirements Sticker Placed on the Appliance

For installations in which the EXALT shares the space with
air movers (exhaust fan, clothes dryers, fireplaces, etc.) and
other combustion equipment (gas or oil) the space must
be provided with adequate air openings to provide venti-
lation and combustion air to the equipment.
WARNING
Ventilation and Combustion Air Requirements
A Category IV appliance utilizes uncontaminated indoor or outdoor air
surrounding the appliance for combustion. In the case of Indirect vent
installation, the space must be provided with ventilation / combustion
air openings properly sized for all make-up air requirements (exhaust
fans, clothes dryers, fireplaces, etc.) and the total input of all applianc-
es, including the BOILER when located in the same space. Failure to
provide or properly size the openings can result in substantial property
damage, serious injury, or death.
For installations in which the BOILER shares the space with air movers
(exhaust fan, clothes dryers, fireplaces, etc.) and other combustion
equipment (gas or oil) the space must be provided with adequate air
openings to provide ventilation and combustion air to the equipment. To
properly size the ventilation / combustion air openings, the installer
must comply with the National Fuel Gas Code (NFPA 54 / ANSI
Z223.1) for installations in the U.S. or CAN/ CSA B149.1 for installa-
tions in Canada.
In the case of In-direct vent installation the air openings provided by the
installer to supply ventilation and combustion air are essential for safe
operation of the appliance. The user must respect the importance of
these air openings and ensure that they are not partially or fully
blocked under any condition. Failure to ensure free uncontaminated air
flow through the openings can result in substantial property damage,
serious injury, or death.
WARNING
• When the air for combustion is taken from
the room air grilles must be installed by the
contractor. The air grilles should be sized in
accordance with ANSI Z223.1/ NFPA54 and/
or Natural Gas and Propane Installation
Code CAN/CSA B149.1.
• The grille providing air when taking air
directly from the room should be identified
to the consumer and the importance of
ensuring that the grilles are not restricted
or blocked in any way clearly explained to
the consumer. The grilles should be clearly
labeled "AIR SUPPLY, DO NOT COVER OR
RESTRICT. FAILURE TO PROVIDE ADEQUATE
AIR FOR COMBUSTION COULD RESULT IN
SERIOUS INJURY, OR DEATH."
UIN 223093 A02
23