Lochinvar KNIGHT 51-211 User's Information Manual
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Lochinvar KNIGHT 51-211 User's Information Manual

Lochinvar KNIGHT 51-211 User's Information Manual

Wall mount boiler
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User's Information Manual
Models: 51 - 211
WARNING
If the information in this manual is not followed exactly, a fire or
explosion may result causing property damage, personal injury or
loss of life.
This appliance MUST NOT be installed in any location where
gasoline or flammable vapors are likely to be present.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do not use any phone in your
building.
• Immediately call your gas supplier from a near by phone.
Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
• Installation and service must be performed by a qualified
installer, service agency, or the gas supplier.
Save this manual for future reference.
WBII-USER Rev B

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Summary of Contents for Lochinvar KNIGHT 51-211

  • Page 1 User’s Information Manual Models: 51 - 211 WARNING If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. This appliance MUST NOT be installed in any location where gasoline or flammable vapors are likely to be present.

  • Page 2: Table Of Contents

    1. PREVENT COMBUSTION AIR CONTAMINATION ... 4 2. MAINTENANCE SCHEDULE ... 5 Maintenance Procedures ... 6 Boiler Must Be Serviced and Maintained ... 6 Check Boiler Area ... 6 Check Pressure Temperature Gauge ... 6 Check Vent Piping ... 6 Check Air Piping ...

  • Page 3: Please Read Before Proceeding

    Instead, shut off the gas supply at a location external to the appliance. • Do not use this boiler if any part has been under water. The possible damage to a flooded appliance can be extensive and present numerous safety hazards. Any appliance that has been under water must be replaced.

  • Page 4: Prevent Combustion Air Contamination

    The acid can eat through the boiler wall, causing serious damage and presenting a possible threat of flue gas spillage or boiler water leakage into the building. Please read the information listed in Table 1A.

  • Page 5: Maintenance Schedule

    Follow the maintenance procedures given throughout this manual. Failure to perform the service and WARNING maintenance or follow the directions in this manual could result in damage to the boiler or system, resulting in severe personal injury, death, or substantial property damage.

  • Page 6: Maintenance Procedures

    Air contaminants -- Products containing chlorine or fluorine, if allowed to contaminate the boiler intake air, will cause acidic condensate in the boiler. This will cause significant damage to the boiler if allowed to continue. Read the list of potential materials listed in Table 1A on page 4 of this manual.
  • Page 7 1. This boiler is a high efficiency appliance that produces condensate. 2. The bottom of the boiler has a 1/2 inch pipe for connection of a 1/2 inch PVC pipe (FIG. 2-2). 3. Slope condensate tubing down and away from the boiler into a drain or condensate neutralizing filter.

  • Page 8: Check Air Vents

    RESET button on the low water cutoff to turn the unit back on. Check boiler piping (gas and water) Remove the boiler front access door and perform a gas leak inspection per steps 1 through 7 of the Operating Instructions on page 9.

  • Page 9: Operating Instructions

    User’s Information Manual Operating instructions...

  • Page 10: Smart System Control Module

    SMART SYSTEM control module Knight wall mount control module Use the control panel (FIG. 4-1) to set temperatures, operating conditions, and monitor boiler operation. Figure 4-1 Control Panel The information on the bottom of the display shows the functions of the two SELECT keys (on either corner), and the...

  • Page 11: Temperature Settings

    SMART SYSTEM control module Night Setback Override Any Night Setback On trigger currently active or scheduled within the next seven (7) days can be skipped. To skip a trigger, press the MENU key for 5 seconds. Once password “0000” appears, press the SAVE key. Rotate the NAVIGATION dial to NSB OVERRIDE, and press the NAVIGATION dial.

  • Page 12: Status Display Screens

    Figure 4-2 Status Display Screen (BOILER STATUS) (OPERATIONAL INFORMATION) (LEFT SELECT KEY) Section PREPURGE (Boiler Status Bar) POSTPURGE SHUTDOWN (Call for Heat Indicators) (NAVIGATION DIAL) Status Display Screens Display The unit has not received a call for heat from a remote thermostat nor STANDBY has it received a call for heat from a DHW thermostat.
  • Page 13 The status of the DHW pump output. The voltage received from a BMS system. The speed signal sent to a variable speed boiler pump in percent. The speed signal received from a variable speed system pump control. A 0 - 10V signal indicating the firing rate of the boiler.

  • Page 14: Status Display Screens

    Turning the NAVIGATION dial will increase or decrease the current setting. SHDN Press the RIGHT SELECT key to turn the boiler OFF. Press the RIGHT SELECT key to turn the boiler ON. Press the RIGHT SELECT key to cancel the shutdown operation.

  • Page 15: Notes

    User’s Information Manual Notes...

  • Page 16: Revision Notes

    Revision Notes: Revision A (ECO C05747) initial release. Reflects the new model numbers for the Knight Wall Mount upgrade. Revision B (ECO C07072) reflects the change in design of the manual air vent, the update of FIG. 2-3 on page 8, and the reorganization of the information on pages 10 and 11 for the user password information.

This manual is also suitable for:

Knight 51Knight 211

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