Specifications

5
Simple Connections
All gas, water, and
electrical connections
are made from the left
side of the boiler
Smart Controls
ABC 2.1 control system
offers multiple boiler
lead/lag for up to 8 boilers,
multicolor LCD touchscreen
display, intuitive text-based
menus, and outdoor reset
Sealed Top Panel
The sealed top panel
protects boiler controls
from spills or leaks;
the components are
also isolated from the
lower jacket to protect
them from cold or moist
combustion air
Single Point Power
Boiler pump and DHW
pump are powered
directly from the Apex
Sealed Combustion
with Negative
Cabinet Pressure
Lower portion of the
boiler cabinet operates
under a negative
pressure, creating an
additional layer of safety
Efficient Combustion
Air and fuel are pre-mixed
in the blower assembly
for clean, balanced
combustion, longer
component life, and
protection of mechanical
fan components
Condensate
Protection
Unique polyproplyene
condensate trap
(patented) stands up to
acidic condensate, and
features an integral float
switch which protects the heat
exchanger from condensate
back-up
Design Simplicity
Separate spark rod and
flame sensor are used for
longevity and reliability
Durable, efficient
stainless steel heat
exchanger
Maximizes heat transfer