Brochure

WHN-02 (Revised WHN-01 3/12)
FG-20M-11/12-Printed in U.S.A.
Smart System
™
Features
> SMART SYSTEM Digital Operating Control
> Multi-Color Graphic LCD Display
with Navigation Dial and Soft Keys
> Three Boiler Setpoint Temperature Inputs
> Plus Domestic Hot Water Prioritization
> Built-in Cascading Sequencer for
up to 8 Boilers
> Multiple Size Boiler Cascade
> Lead Lag
> Efficiency Optimization
> Front End Loading Capability with Copper Fin II
> Outdoor Reset Control with Outdoor
Air Sensor
> Programmable for Three Reset
Temperature Inputs
> Programmable System Efficiency Optimizers
> Night Setback
> DHW Night Setback*
> Anti-Cycling
> Outdoor Air Reset Curve
> Ramp Delay
> Boost Temperature & Time
> Three Pump Control
> System Pump with Parameter for
Continuous Operation
> Boiler Pump with Variable Speed
Pump Control*
> Domestic Hot Water Pump
> Domestic Hot Water Prioritization
> DHW tank piped with priority in
the boiler loop
> DHW tank piped as a zone in the
system with the pumps controlled
by the Smart System
> DHW Modulation Limiting
> Separately Adjustable Space Heat/DHW
Switching Times*
> Building Management System Integration
> 0-10 VDC Input to Control Modulation
or Set Point
> 0-10 VDC Modulation Rate Output
> 0-10 VDC Input to Enable/Disable call for heat
> Access to BMS Settings through Graphic
LCD Display
> High-Voltage Terminal Strip
> 120 VAC / 60 Hertz / 1 Phase Power Supply
> Three Sets of Pump Contacts
> Low Voltage Terminal Strip
> 24 VAC Device Relay
> Proving Switch Contacts
> Flow Switch Contacts
> Alarm on Any Failure Contacts
> Runtime Contacts
> DHW Thermostat Contacts
> 3 Space Heat Thermostat Contacts
> System Sensor Contacts
> DHW Tank Sensor Contacts
> Outdoor Air Sensor Contacts
> Cascade Contacts
> 0-10 VDC BMS External Control Contact
> 0-10 VDC Boiler Rate Output Contacts
> 0-10 VDC Variable Speed System Pump
Signal Input*
> 0-10 VDC Signal to Control Variable
Speed Boiler Pump*
> Modbus Contacts
> Time Clock
> Data Logging
> Hours Running, Space Heating
> Hours Running, Domestic Hot Water
> Ignition Attempts
> Last 10 Lockouts
> Maintenance Reminder
> Custom Maintenance Reminder with
Contractor Contact Information
> Installer Ability to De-activate
Service Reminder
> Low-Water Flow Safety Control & Indication
> Password Security
> Customizable Freeze Protection Parameters
Standard Features
> ENERGY STAR Most Efficient Recognition
§
> 95% DOE AFUE Efficiency
§
> Modulating Burner with 5:1 Turndown
> Direct-Spark Ignition
> Low-NOx Operation
> Field Convertible from Natural to LP Gas
> ASME Stainless Steel Heat Exchanger
> 30 psi ASME Relief Valve
> Vertical & Horizontal Direct-Vent
> PVC, CPVC, Polypropylene or SS Venting up
to 100 feet
> Smart System Control
> Condensate Trap
> Other Features
> Automatic Reset High Limit
> Adjustable High Limit w/Manual Reset
> Boiler Circulating Pump
> Wall-Mount Bracket
> Zero Clearances to Combustible Materials
> 12-Year Limited Warranty
(See Warranty for Details)
Optional Equipment
> Modbus Communication
> Flow Switch
> Low-Water Cutoff w/Manual Reset & Test
> Alarm Bell
> Concentric Vent Kit
> SMART SYSTEM PC Software
> Condensate Neutralization Kit
> BMS Gateway to LON or BacNet
> Multi-Temperature Loop Control
> Sidewall Vent Termination
Firing Codes
> M9 Standard Construction
> M7 California Code
* Exclusive feature, available only from Lochinvar
§ WHN 55-285 only
Input Heating NET
Model Max. Min. *AFUE Capacity I=B=R
Number MBH MBH % MBH MBH
WHN055 55 11 95.0 51 44
WHN085 85 17 95.0 79 69
WHN110 110 22 95.0 102 89
WHN155 155 31 95.0 144 125
WHN199 199.9 40 95.0 185 161
WHN285 285 57 95.0 264 229
WHN399 400 80 95.0 380 323
A B C D E F G H I J K L M N O Gas Water Air Vent Shipping
Conn. Conn. Inlet Size Wt. (lbs.)
33-1/4” 18-1/2” 16” 11-3/4” 10-1/2” 6-1/2” 4” 1-1/2” 3” 14-1/2” 5-3/4” 4” 3” 16-1/4” 5” 1/2” 1” 2” 2” 139
33-1/4” 18-1/2” 16” 11-3/4” 10-1/2” 6-1/2” 4” 1-1/2” 3” 14-1/2” 5-3/4” 4” 3” 16-1/4” 5” 1/2” 1” 2” 2” 142
33-1/4” 18-1/2” 19” 14-1/2” 10-3/4” 7-3/4” 7-3/4” 2-1/4” 10” 15-1/2” 5” 3-1/4” 3” 16-1/2” 2-3/4” 1/2” 1” 3” 3” 159
33-1/4” 18-1/2” 19” 14-1/2” 10-3/4” 7-3/4” 7-3/4” 2-1/4” 10” 15-1/2” 5” 3-1/4” 3” 16-1/2” 2-3/4” 1/2” 1” 3” 3” 166
33-1/4” 18-1/2” 19” 14-1/2” 11-3/4” 8” 8” 1-1/4” 10” 16-3/4” 4-3/4” 3-1/4” 2-3/4” 16-1/2” 3” 1/2” 1-1/4” 3” 3” 175
33-1/4” 18-1/2” 19” 14-1/2” 11-3/4” 8” 8” 1-1/4” 10” 16-3/4” 4-3/4” 3-1/4” 2-3/4” 16-1/2” 3” 1/2” 1-1/4” 3” 3” 184
35-1/2” 25” 21-3/4” 17-1/2” 12-1/2” 9-1/4” 9-1/2” 2-1/4” 13-1/4” 21-1/2” 9” 4-3/4” 4” 22-1/2” 3-3/4” 3/4” 1-1/2” 4” 4” 213
Notes: Indoor installation only. All information subject to change. Change "N" to "L" for LP gas models. *WHN399 value is Thermal Efficiency
Knight Heating Boiler Dimensions and Specifications
Knight
®
®
Wall-Mount Boiler Dimensions and Specifications
Patent Pending
Lochinvar, LLC
300 Maddox Simpson Parkway
Lebanon, Tennessee 37090
P: 615-889-8900 / F: 615-547-1000
www.Lochinvar.com