Lochinvar KBN600 User's Manual
Contents
1. XL COMMERCIAL BOILER SMAR TEEN OPERATING CONTROL FEATURING A BUILT IN CASCADING SEQUENCER 5 MODELS 399 000 800 000 BTU HR FIRING RATE MODULATION TO 5 1 LESS THAN 20 ppm NOx DIRECT VENT FLEXIBILITY TO 100 FEET UP ro 94 696 THERMAL EFFICIENCY d V High Efficiency Water Heaters Boilers and Pool Heaters lochinvar com COMMERCIAL BOILER The KNIGHT XL engineered with Lochinvar s exclusive SMART SYSTEM control and an array of other innovative features places it far ahead of any commercial heating boiler in its class It promises and delivers ultimate ease of installation and maintenance With up to 94 696 thermal efficiency low NOx emissions and a fully modulating burner it is the best green choice for today s environmentally focused market Five modulating condensing stainless steel KNIGHT XL boilers are available with 399 000 800 000 Btu hr inputs with remarkably small space saving footprints Allare equipped for direct vent installation with air intake and exhaust runs up to 100 feet using PVC CPVC or AL29 4C venting materials This range of choices is ideal for light duty applications such as small hotels schools and office buildings For higher demand applications up to eight KNIGHT XL units can be installed utilizing the built in cascading sequencer to deliver up to 6 4 million Btu hr heating capacity THE KNIGHT XL BOILER reflects Lochinvar s2. The front and top panels of the KNIGHT XL boiler can be quickly removed without any tools This provides fast easy access to internal components and electrical connections during installation and service LOW VOLTAGE ELECTRICAL CONNECTIONS HIGH VOLTAGE ELECTRICAL CONNECTIONS Model Number Guide M13 HEAT EXCHANGER DRAIN 3 4 NPT Knight XL Boiler Natural Gas 700 000 Btu hr input M13 firing controls CONDENSATE DRAIN 1 4 1 1 4 J ADJUSTABLE FRONT Model Min Max Thermal Output l B R Water Air Vent Shipping Number MBH MBH Efficiency MBH MBH Conn Conn Inlet Size Wt lbs KBN399 80 399 93 3 372 Q M EA 2 34 34 2034 27 WO 3o 3w 2s 18 3 4 1 1 2 P g KBN500 100 500 93 3 467 406 A Jp eo 2 37 36 2 18 1 1 2 P g KBN600 120 600 94 6 567 493 A v pepe 36 14 3 3 4 25 MEME OG 334 a 2 p TY KBN700 140 700 94 3 660 574 A TA 40 1 4 3 3 4 29 DES 234 3172922 21 g KBN800 160 800 94 0 152 654 42 125 20052120 45 1 4 33W 334 23 T 3 3W 3AW 7 3 4 2 4 FOR Notes Change N to L for L P Gas Model No deration on L P models Performance data based on manufacturer test results 120 VAC 15 AMP circuit required All dimensions shown in inches Low Voltage Terminal Strip Up to 94 6 Thermal Efficiency SMART SYSTEM Digital Operating Control Modulating Burner with 5 1
3. Turndown Direct Spark Ignition Low NOx Operation Sealed Combustion Low Gas Pressure Operation Vertical amp Horizontal Direct Vent Category IV venting up to 100 feet PVC CPVC or AL29 4C Venting up to 100 Feet Factory Supplied Sidewall Vent Termination ASME Stainless Steel Heat Exchanger ASME Certified H Stamped Gasketless Heat Exchanger 160 psi Working Pressure Highly efficient condensing design On Off Switch Adjustable High Limit w Manual Reset Flow Switch Inlet amp Outlet Temperature Sensors Flue Temperature Sensor Low Air Pressure Switch 50 psi ASME Relief Valve Temperature amp Pressure Gauge Adjustable Leveling Legs Condensate Trap Zero Clearances to Combustible Material 10 Year Limited Warranty See Warranty for Details 300 Maddox Simpson Parkway Lebanon TN 37090 615 KBX 03 Replaces KBX 02 6 08 2 line 16 Character Display Dual Level Password Security Domestic Hot Water Prioritization Built in Cascading Sequencer for up to 8 Boilers Building Management System Integration with o 10 VDC Input Outdoor Reset Control with Outdoor Air Sensor Low Water Flow Safety Control amp Indication Inlet amp Outlet Temperature Readout Freeze Protection Service Reminder Time Clock Data Logging Hours Running Space Heating Hours Running Domestic Hot Water Ignition Attempts Last 10 Lockouts Programmable System Efficiency Optimizers Night Setback Anti Cycling Outdoor Air Reset Curve Ramp Delay Boost Temper
4. constant commitment to providing all the options you need to serve every application TT TTTETSEXT NN S OOM INN W iW n y VA mi ee a Oe ih i 3 t s EL M T M yt B be 777 27 TT r 7 7 ii mil S SMART 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 CONTROLAND 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 Hor WATER GENERATOR COMPATIBILITY jme ER P One boiler in a sequence can be assigned for Domestic Hot Water x Prioritizati
5. ature amp Time Three Pump Control System Pump Boiler Pump Domestic Hot Water Pump High Voltage Terminal Strip 120 VAC 50 60 Hertz 1 Phase Power Supply Three sets of Pump Contacts with Pump Relays mn P S FAE nn wf RANDON Was os MEMBER Wn patent 7 506 617 V 24 VAC Auxiliary Device Relay Auxiliary Proving Switch Contacts Flow Switch Contacts Alarm on Any Failure Contacts Runtime Contacts DHW Thermostat Contacts Room Thermostat Contacts System Sensor Contacts DHW Tank Sensor Contacts Outdoor Air Sensor Contacts Cascade Contacts 0 10 VDC BMS External Control Contact Alarm Bell on Any Failure Condensate Neutralization Kit High amp Low Gas Pressure Switches w Manual Reset KB500 KB800 Low Water Cutoff w Manual Reset amp Test SMART SYSTEM PC Software Stainless Steel Vent Kits KB700 KB800 Multi Stack Frame M9 Standard Construction M7 California Code M13 CSD1 FM GE Gap KB500 KB800 Lochinvar High Efficiency Water Heaters Boilers and Pool Heaters 89 8900 fax 615 547 1000 www lochinvar com 5M 4 09 Printed in U S A
6. hrough a simple 2 wire daisy chain connection On demand one boiler in the system functions as the leader and modulates with demand to capacity The additional load then cascades to the second boiler which fires and modulates to meet added demand via a patented process to match system load and reduce equipment short cycling A Cascading continues as additional boilers fire in sequence until all units are in operation or demand is satisfied When demand drops the patented cascading process reverses with the precision control and performance you expect from Lochinvar SMART SYSTEM also controls Lead Lag Rotation Every 24 hours the lead boiler role is shifted to the next unit in the sequence This rotation ensures long life by distributing lead lag runtimes equally over each unit in the system EASY HANDLING ON THE JOBSITE Because of its compact design and stainless steel heat exchanger KNIGHT XL boilers are remarkably lightweight and easy to handle on the jobsite DIRECT VENTING UP TO 100 FEET KNIGHT XL offers tremendous flexibility for placement of units within the building because it permits direct vent air intake and exhaust runs up to 100 equivalent feet using either PVC CPVC or AL29 4C stainless steel vent pipe Intake and exhaust runs can terminate horizontally through a sidewall or vertically through the roof EASY ACCESS TO INTERNAL COMPONENTS
7. on DHWP to meet domestic water demand 15 1 2 2 zero clearance to combustibles 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 The 4 unit installation shown illustrates the space saving KNIGHT XL footprint and the ease and versatility of the two pipe direct vent design 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 PRODUCT SERVICE INDICATOR Program reminders for cycle count operation hours or last service SYSTEM INCLUDING A BUILT IN CASCADING SEQUENCER In commercial buildings requiring a multiple boiler system modulating operation of individual units should be sequenced so that the system functions as an integrated whole SMART SYSTEM includes a built in cascading sequencer for up to 8 KNIGHT XL units This eliminates the initial cost and labor required with installation of a separate sequencer And because it s engineered specifically for Lochinvar boilers it removes any uncertainty about using a third party sequencer to ensure precise dependable cascading operation When utilizing the built in cascading sequencer KNIGHT XL boilers communicate t
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