The Brain That Drives
Brilliant Performance!
SMART SYSTEM provides unequalled control
and monitoring functions that are easy to
understand and use.
2-Line, 16-Character LCD Display
Setup and diagnostic information in words, not codes
Password Security
Dual password levels for installer and user
Building Management System Control (0 – 10 V )
BMS-driven input for control of modulation rate or temperature
PC Connection
Can be used with KNIGHT XL PC software to program and
troubleshoot SMART SYSTEM functions, and to track historical
data, including faults, trends and energy consumption
Outdoor Reset
Outdoor temperature monitor guides the reset schedule to meet
heat loss/load of the building
Night Setback
Program a setback for any time of the day, each day of the week
System Pump Control and Boiler Pump Control
Switching contacts control power to both system and boiler
pumps on a call for heat. Programmable pump delay orders
pumps to operate after a call has been satisfied
Pump Relay with Freeze Protection
Ensures water temperature does not fall below 40°F
Hot Water Generator Compatibility
One boiler in a sequence can be assigned for Domestic Hot Water
Prioritization (DHWP) to meet domestic water demand
Inlet/Outlet and System Temperature Sensors
Installer can select which sensor controls the setpoint
Low Water Flow Indicator
Protects against high temperature differential in the heat
exchanger with reduced firing rate or shutdown
Product Service Indicator
Program reminders for cycle count, operation hours or last service
Field Connection Versatility
User-friendly terminal strip allows for 28 low-voltage field
connections. Plus 4 line voltage connections supply power to
the unit, and up to 3 pumps operated by the SMART SYSTEM
15-1/2”
zero clearance
to combustibles
The 4-unit installation shown illustrates
the space-saving KNIGHT XL footprint,
and the ease and versatility of the
two-pipe direct-vent design.
That Drives
P
!
