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General| Model | KBN400 |
|---|---|
| Input BTU/hr | 400, 000 |
| Efficiency | 95% AFUE |
| Weight | 320 lbs |
| Dimensions | 27" W x 54" H x 29" D |
| Modulation Ratio | 5:1 |
| Fuel Type | Natural Gas or Propane |
| Electrical Supply | 120V, 60Hz |
Procedures for converting the boiler to propane gas operation.
Provides detailed instructions for installing vent and combustion air piping.
Provides essential guidelines and steps for hydronic piping installation.
Details the installation of flow switches, relief valves, and gauges.
Guidance on sizing circulators based on system design and pressure drop.
Provides instructions for connecting the gas supply piping to the boiler.
Covers pipe sizing and supply pressure requirements for natural gas.
Addresses propane gas conversion, pipe sizing, and supply pressure.
Details the procedure for checking the inlet gas supply pressure.
Instructions for making 120 VAC power and pump wiring connections.
Guidance on routing and connecting low voltage wiring to the control board.
Covers installation of thermostats, outdoor sensors, and DHW tank sensors.
Details wiring for safety switches like gas pressure and louver proving.
Provides instructions for wiring multiple boilers in a cascade system.
Details the installation and maintenance of the condensate drain system.
Covers water quality testing and recommendations for filling the boiler.
Details the use of propylene glycol for freeze protection and its considerations.
Outlines the process for filling and testing the water system.
Instructions for performing gas leak checks before and during operation.
Guides through final checks, starting the boiler, and troubleshooting common issues.
Provides step-by-step instructions for operating the boiler.
Guides through checking burner flame, combustion analysis, and safety shutoff.
Details programming parameters for cascade boiler operation.
Details temperature limiting, freeze protection, and other safety features.
Explains temperature control, high limit operations, and testing procedures.
Details cascade setup, sequencing, and DHW/setback logic.
Outlines service and maintenance schedules for technicians and owners.
Details inspection and testing procedures for the boiler relief valve.
Provides detailed steps for cleaning the boiler heat exchanger.
Presents the overall wiring diagram for the boiler's electrical connections.
