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                        WH-USER Rev B
User’s Information Manual
Models:  WH 55 - 399
 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 you
                    
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                        Contents HAZARD DEFINITIONS ..................................................... 2 3.  OPERATING INSTRUCTIONS ..................................... 9 PLEASE READ BEFORE PROCEEDING ......................... 3 4.  SMART SYSTEM CONTROL MODULE 1.  PREVENT COMBUSTION AIR CONTAMINATION ..... 4 SMART SYSTEM Control Module ................................... 11 2.  MAINTENANCE SCHEDULE ....................................... 5      Access Modes ..........................................................
                    
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                                     User’s Information Manual  Please read before proceeding The Knight Wall Mount Installation and  Boiler service and maintenance –  NOTICE Operation Manual along with the Knight  � To avoid electric shock, disconnect electrical supply  Wall Mount Service Manual are for use   before performing maintenance. only by a qualified heating installer/service  technician.  Refer only to this User’s  � To avoid severe burns, allow boiler to cool before  Information Manual for your reference.  
                    
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                                      User’s Information Manual 1  Prevent combustion air contamination If the boiler combustion air inlet is located   WARNING Table 1A Corrosive Contaminants and Sources in any area likely to cause contamination,  or if products which would contaminate  Products to avoid: the air cannot be removed, you must  have the combustion air and vent  Spray cans containing chloro/fluorocarbons re-piped and terminated to another  Permanent wave solutions location.  Contaminated combustion  air w
                    
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                                       User’s Information Manual 2  Maintenance schedule Service technician Owner maintenance (see the Knight Wall Mount Service Manual) (see pages 6 - 8 for detailed instructions) General:   • Reported problems  • Check boiler area  • Inspect interior; clean and vacuum if  Daily  •    Check pressure/temperature    necessary    gauge  • Clean condensate trap and fill with fresh    water  • Check for leaks (water, gas, flue,    condensate)  • Check vent piping  • Verify flue and air lines
                    
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                                      User’s Information Manual 2  Maintenance schedule  Read the list of potential materials listed in Table 1A on  Maintenance procedures  page 4 of this manual.  If any of these products are in the   room from which the boiler takes its combustion air, they  Boiler must be serviced and maintained  must be removed immediately or the boiler combustion   air (and vent termination) must be relocated to another  The boiler must be inspected and started   WARNING area. annually at the begi
                    
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                                       User’s Information Manual 2  Maintenance schedule (continued) The condensate trap (FIG. 2-1) must have  Use materials approved by the authority   NOTICE  WARNING the float ball in place during all times of  having jurisdiction.  In the absence of  boiler operation to avoid flue gas emission  other authority, PVC and CPVC pipe  from the condensate drain line.  Failure to  must comply with ASTM D1785 or D2845.   ensure the float ball is in place could result in  Cement and primer m
                    
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                                      User’s Information Manual 2  Maintenance schedule Test low water cutoff (if installed) 1. If the system is equipped with a low water cutoff,        2. Read the boiler pressure/temperature gauge to make   test  the low water cutoff periodically during the heating  sure the system is pressurized.  Lift the relief valve   season, following the low water cutoff manufacturer’s  top lever slightly, allowing water to relieve through   instructions. the valve and discharge piping. 3. If wa
                    
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                                       User’s Information Manual 3  Operating instructions Figure 3-1 Operating Instructions - Models 55 - 285                                                                                                                                                                                       o            9                                                                                                                                                                                         
                    
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                                        User’s Information Manual 3  Operating instructions Figure 3-2 Operating Instructions - Model 399 10                                                                                                                                                                                                                                                                                                                                                                                                
                    
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                                       User’s Information Manual 4  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 NAVIGATION DIAL The information on the bottom of the display shows the functions of the two SELECT keys (on either corner), and the  NAVIGATION dial (in the center):  MENU = Left SELECT Key       SETPOINTS = NAVIGATION Dial - Pressing Down       SHDN = Right SELEC
                    
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                                        User’s Information Manual 4  SMART SYSTEM control module Night Setback Override Space heating (SH1, SH2, SH3) and tank set points Any Night Setback On trigger currently active or scheduled  Mixing valves are required for the   CAUTION within the next seven (7) days can be skipped.  To skip a trigger,  protection of any low temperature loops. press the MENU key for 5 seconds. Once password “0000”  appears, press the SAVE key. Rotate the NAVIGATION dial  to NSB OVERRIDE, and press 
                    
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                                       User’s Information Manual 4  SMART SYSTEM control module (continued) Figure 4-2 Status Display Screen B A (CALL FOR (BOILER  HEAT) STATUS) C (OPERATIONAL INFORMATION) F D (RIGHT SELECT KEY) (LEFT SELECT KEY) E (NAVIGATION DIAL) Status Display Screens Section Display Description 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. START The unit has begun a burn cycle and is checking all safety circui
                    
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                                        User’s Information Manual 4  SMART SYSTEM control module Status Display Screens (cont’d) Section Display Description SYSTEM: The temperature read by the system supply sensor (if connected). TANK: The temperature read by the tank sensor (if connected). OUTDOOR: The temperature read by the outdoor sensor (if connected). INLET TEMP: The temperature read at the inlet to the heat exchanger. OUTLET TEMP: The temperature read at the outlet of the heat exchanger. The temperature differen
                    
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                                       User’s Information Manual 4  SMART SYSTEM control module (continued) Status Display Screens (cont’d) Section Display Description Turning the NAVIGATION dial will select the next or previous Status  Screen. Pressing the NAVIGATION dial will show the next fault, NSB (Night  Setback) trigger, or ramp delay setting. Pressing the NAVIGATION dial will select the setting indicated by  E the cursor. (NAVIGATION  Pressing the NAVIGATION dial will display the Set Points Screen. Dial Functio
                    
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                        Revision Notes:  Revision A (ECO C06854) initial release.   Revision B (ECO C07072) reflects the update of the User  information in the SMART SYSTEM control module “Access  modes” section on page 11 and user information in the “Night  Setback Override” section on page 12.   WH-USER Rev B 01/11