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.

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

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Lochinvar KBN800, KBN399, KBN500, KBN700, KBN600 manual Brain That Drives Brilliant Performance, 15-1/2