Lochinvar Outdoor Knight XL 400 User Manual

OKBX-USER Rev A  
Outdoor Knight XL  
User’s Information Manual  
Models: 400 - 801  
This manual must only be used by  
a qualified heating installer / service  
ƽ WARNING  
technician. Read all instructions,  
including this manual and the  
Outdoor Knight XL Service Manual,  
before installing. Perform steps in  
the order given. Failure to comply  
could result in severe personal  
injury, death, or substantial property  
damage.  
Save this manual for future reference.  
Outdoor Knight XL User’s Information Manual  
Please read before proceeding  
The Outdoor Knight Boiler Installation  
and Operation Manual along with the  
Boiler service and maintenance –  
NOTICE  
• To avoid electric shock, disconnect electrical supply  
before performing maintenance.  
Outdoor Knight Boiler Service Manual  
are for use only by a qualified heating  
installer/service technician. Refer only  
to this User’s Information Manual for  
your reference. Improper installation,  
adjustment, alteration, service or  
maintenance can cause property damage,  
personal injury (exposure to hazardous  
materials) or loss of life. Installation  
and service must be performed by a  
qualified installer, service agency or the  
gas supplier (who must read and follow  
the supplied instruction before installing,  
servicing, or removing this boiler. This  
boiler contains materials that have been  
identified as carcinogenic, or possibly  
carcinogenic, to humans).  
• To avoid severe burns, allow boiler to cool before  
performing maintenance.  
Boiler operation –  
Do NOT install the appliance where it will  
ƽ WARNING  
be exposed to freezing temperatures.  
• Do not block flow of combustion or ventilation air to  
the boiler. This boiler is equipped with a control which  
will automatically shut down the boiler should air or  
vent be blocked. If vent or air blockage is easily  
accessible and removable, remove it. The boiler should  
attempt to restart. If blockage is not obvious or cannot  
be removed, have the boiler and system checked by a  
qualified service technician.  
• Should overheating occur or gas supply fail to shut off,  
do not turn off or disconnect electrical supply to the  
circulator. Instead, shut off the gas supply at a location  
external to the appliance.  
When calling or writing about the boiler  
NOTICE  
– Please have the boiler model and serial  
number from the boiler rating plate.  
Consider piping and installation when  
determining boiler location.  
• 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.  
Any claims for damage or shortage in  
shipment must be filed immediately  
against the transportation company by  
the consignee.  
Boiler water –  
Thoroughly flush the system (without boiler  
connected) to remove sediment. The high-efficiency  
heat exchanger can be damaged by build-up or  
corrosion due to sediment.  
Factory warranty (shipped with unit) does  
not apply to units improperly installed or  
improperly operated.  
Failure to adhere to the guidelines on this  
ƽ WARNING  
• Do not use petroleum-based cleaning or sealing  
compounds in the boiler system. Gaskets and seals in  
the system may be damaged. This can result in  
substantial property damage.  
page can result in severe personal injury,  
death, or substantial property damage.  
• Do not use “homemade cures” or “boiler patent  
medicines”. Serious damage to the boiler, personnel,  
and/or property may result.  
• Continual fresh make-up water will reduce boiler life.  
Mineral buildup in the heat exchanger reduces heat  
transfer, overheats the stainless steel heat exchanger,  
and causes failure. Addition of oxygen carried in by  
makeup water can cause internal corrosion. Leaks in  
boiler or piping must be repaired at once to prevent  
makeup water.  
Freeze protection fluids –  
• NEVER use automotive antifreeze. Use only inhibited  
propylene glycol solutions, which are specifically  
formulated for hydronic systems. Ethylene glycol is  
toxic and can attack gaskets and seals used in hydronic  
systems.  
3
Outdoor Knight XL User’s Information Manual  
1 Prevent combustion air contamination  
If the boiler combustion air inlet is located  
in any area likely to cause contamination,  
or if products which would contaminate  
the air cannot be removed, you must have  
the combustion air and vent re-piped  
and terminated to another location.  
Contaminated combustion air will damage  
the boiler, resulting in possible severe  
personal injury, death, or substantial  
property damage.  
ƽ WARNING  
Table 1 Corrosive Contaminants and Sources  
Products to avoid:  
Spray cans containing chloro/fluorocarbons  
Permanent wave solutions  
Chlorinated waxes/cleaners  
Chlorine-based swimming pool chemicals  
Calcium chloride used for thawing  
Sodium chloride used for water softening  
Refrigerant leaks  
If the boiler combustion air inlet is located  
in a laundry room or pool facility, for  
example, these areas will always contain  
hazardous contaminants.  
ƽ WARNING  
Pool and laundry products and common household  
and hobby products often contain fluorine or chlorine  
compounds. When these chemicals pass through the boiler,  
they can form strong acids. 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.  
Paint or varnish removers  
Hydrochloric acid/muriatic acid  
Cements and glues  
Antistatic fabric softeners used in clothes dryers  
Chlorine-type bleaches, detergents, and cleaning solvents  
found in household laundry rooms  
Please read the information listed in Table 1. If contaminating  
chemicals will be present near the location of the boiler  
combustion air inlet, have your installer pipe the boiler  
combustion air and vent to another location, per the Outdoor  
Knight Boiler Installation and Operation Manual.  
Adhesives used to fasten building products and other similar  
products  
Areas likely to have contaminants  
Dry cleaning/laundry areas and establishments  
Swimming pools  
To prevent the potential of severe personal  
ƽ WARNING  
injury or death, check for areas and  
products listed in Table 1 before installing  
the boiler or air inlet piping.  
Metal fabrication plants  
Beauty shops  
If contaminants are found, you MUST:  
• Remove contaminants permanently.  
—OR—  
Refrigeration repair shops  
Photo processing plants  
• Relocate air inlet and vent  
terminations to other areas.  
Auto body shops  
Plastic manufacturing plants  
Furniture refinishing areas and establishments  
New building construction  
Remodeling areas  
Garages with workshops  
4
Outdoor Knight XL User’s Information Manual  
2 Maintenance schedule  
Owner maintenance  
(see the Outdoor Knight XL User’s Information  
Manual for instructions)  
Service technician  
(see the following pages for instructions)  
General:  
• Check boiler area  
• Address reported problems  
Daily  
• Inspect interior; clean and vacuum if  
necessary;  
• Check pressure/temperature  
gauge  
• Clean condensate trap and fill with fresh  
water  
• Check for leaks (water, gas, flue,  
condensate)  
• Verify flue and air passage ways in good  
condition and sealed tight  
• Check air and vent termination  
screens  
• Check system water pressure/system  
piping/expansion tank  
Monthly  
• Check control settings  
• Check relief valve  
• Check ignition and flame sense  
electrodes (sand off any deposits; clean  
and reposition)  
• Check condensate drain system  
• Check wiring and connections  
Perform start-up checkout and  
performance verification per Section 10.  
Test low water cutoff (if used)  
• Flame inspection (stable, uniform)  
Periodically  
• Reset button (low water cutoff)  
• Flame signal (at least 10 microamps at  
high fire)  
• Clean the heat exchanger if flue  
temperature is more than 54°F (30°C)  
above return water temperature.  
• Check boiler piping (gas and  
water) for leaks  
Every  
6 months  
If combustion or performance  
indicate need:  
• Operate relief valve  
• Clean heat exchanger  
• Remove and clean burner using  
compressed air only  
End  
of season  
months  
Shut boiler down (unless boiler  
used for domestic hot water)  
• Clean the blower wheel  
Follow the maintenance procedures given throughout this manual. Failure to perform the service and  
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.  
ƽ WARNING  
5
Outdoor Knight XL User’s Information Manual  
2 Maintenance schedule  
Maintenance procedures  
Read the list of potential materials listed in Table 1A on  
page 4 of this manual.  
Boiler must be serviced and maintained  
Check pressure/temperature gauge  
The boiler must be inspected and started  
ƽ WARNING  
1. Make sure the pressure reading on the boiler pressure/  
temperature gauge does not exceed 24 psi (165.5 kPa).  
Higher pressure may indicate a problem with the  
expansion tank.  
annually at the beginning of the heating  
season by a qualified service technician. In  
addition, the maintenance and care of the  
boiler designated on page 5 of this manual  
and explained on pages 6 through 8 must  
be performed to assure maximum boiler  
efficiency and reliability. Failure to service  
and maintain the boiler and system could  
result in equipment failure, causing possible  
severe personal injury, death, or substantial  
property damage.  
2. Contact a qualified service technician if problem  
persists.  
Check all piping for leaks  
Eliminate all system or boiler leaks.  
Continual fresh makeup water will  
ƽ WARNING  
reduce boiler life. Minerals can build  
up in sections, reducing heat transfer,  
overheating heat exchanger, and causing  
heat exchanger failure. Leaking water  
may also cause severe property damage.  
The following information provides detailed  
NOTICE  
instructions for completing the maintenance  
items listed in the maintenance schedule on  
page 5. In addition to this maintenance,  
the boiler must be serviced and started up  
at the beginning of each heating season by a  
qualified service technician.  
1. Inspect all water and gas piping and verify to be leak  
free.  
2. Look for signs of leaking lines and correct any problems  
found.  
Check boiler area  
To prevent potential of severe personal  
ƽ WARNING  
3. Contact a qualified service technician if problem  
persists.  
injury, death, or substantial property damage,  
eliminate all materials discussed below from  
the boiler vicinity and the vicinity of the  
boiler combustion air inlet. If contaminants  
are found:  
Check relief valve  
1. Inspect the boiler relief valve and the relief valve  
discharge pipe for signs of weeping or leakage.  
Remove products immediately from the  
area. If they have been there for an extended  
period, call a qualified service technician to  
inspect the boiler for possible damage from  
acid corrosion.  
2. If the relief valve often weeps, the expansion tank may  
not be working properly. Immediately contact your  
qualified service technician to inspect the boiler and  
system.  
Check condensate drain system  
1. Inspect the condensate drain line, condensate PVC  
fittings and condensate trap.  
If products cannot be removed, immediately  
call  
a
qualified service technician to  
re-pipe vent and air piping and locate  
vent termination/air intake away from  
contaminated areas.  
Fill condensate trap with water  
1. Remove the PVC cap retaining screw from the PVC cap  
(FIG. 2-1).  
1. Combustible/flammable materials -- Do not store  
combustible materials, gasoline or any other flammable  
vapors or liquids near the boiler. Remove immediately if  
found.  
2. Remove the 2" PVC cap with the switch located at  
the top of the trap (FIG. 2-1).  
3. Fill with fresh water until the water begins to pour out of  
the drain.  
2. 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.  
4. Replace the cap. Press the cap onto the trap until the cap  
makes contact with the drain.  
5. Replace the retaining screw.  
6
Outdoor Knight XL User’s Information Manual  
2 Maintenance schedule  
(continued)  
3. Fill with fresh water until the water begins to pour out  
of the drain.  
Use materials approved by the authority  
NOTICE  
having jurisdiction. In the absence of  
other authority, PVC and CPVC pipe  
must comply with ASTM D1785 or D2845.  
Cement and primer must comply with  
ASME D2564 or F493. For Canada use  
CSA or ULC certified PVC or CPVC pipe,  
fittings, and cement.  
4. Replace the cap. Press the cap onto the trap until the  
cap makes contact with the drain.  
5. Replace the retaining screw.  
The condensate trap (FIG. 2-1) must  
be filled with water during all times  
ƽ WARNING  
of boiler operation to avoid flue gas  
emission from the condensate drain line.  
Failure to fill the trap could result in  
severe personal injury or death.  
To allow for proper drainage on large  
horizontal runs, a second line vent may  
be required and tubing size may need to  
increase to 1 inch.  
NOTICE  
The condensate line must remain  
unobstructed, allowing free flow of  
condensate. If condensate is allowed to  
freeze in the line or if the line is obstructed  
in any other manner, condensate can exit  
from the boiler tee, resulting in potential  
water damage to property. Call your  
qualified service technician to inspect  
the boiler and system.  
Figure 2-1 Condensate Trap  
RETAINING  
SCREW  
2” PVC CAP WITH  
BLOCKED DRAIN SWITCH  
PVC TEE ASSEMBLY  
(FACTORY SUPPLIED)  
8. A condensate removal pump is required if the boiler is  
below the drain. When installing a condensate pump,  
select one approved for use with condensing boilers  
and furnaces. The pump should have an overflow  
switch to prevent property damage from condensate  
spillage. Call your qualified service technician to inspect  
the boiler and system.  
CONDENSATE FROM  
TO FLOOR  
DRAIN  
HEAT EXCHANGER  
Condensate disposal  
1. This boiler is a high efficiency appliance that produces  
condensate.  
Figure 2 Condensate Disposal  
2. The side of the boiler has a 1/2 inch PVC union 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.  
Condensate from the Knight XL will be slightly acidic  
(typically with a pH from 3 to 5). Install a neutralizing  
filter if required by local codes. Call your qualified  
service technician to inspect the boiler and system.  
1/2" PVC  
BLY  
TEE ASSEM  
A Neutralizer Kit is available from the factory (Kit 3087  
for Models 400 - 501 and Kit 30002 for Models 601 -  
801). Call your qualified service technician to install.  
)
SUPPLIED  
(FACTORY  
IMG00331  
IN OR  
FLOOR DRA  
4. Install the 1/2 inch PVC tee assembly (shipped with the  
unit) as shown in FIG. 2-2. Call your qualified service  
technician to inspect the boiler and system.  
DRA  
IN PAN  
ON  
1/2" PVC UNI  
)
SUPPLIED  
(FACTORY  
R KIT  
NEUTRALIZE  
5. Leave the top of the 1/2 inch tee OPEN. This is needed  
as a vacuum break.  
6. Do not expose condensate line to freezing temperatures.  
7. Use only plastic tubing or piping as a condensate drain  
line (FIG. 2-2).  
7
Outdoor Knight XL User’s Information Manual  
2 Maintenance schedule  
Check air vents  
Have leaks fixed at once by a qualified  
ƽ WARNING  
service technician. Failure to comply could  
result in severe personal injury, death, or  
substantial property damage.  
1. Reference FIG. 3 below.  
2. Visually inspect vent to make sure that no leaks are  
present.  
3. Replace the front access door.  
3. If there is leaking, tighten the pin valve.  
4. If the leak continues, replace the air vent.  
Operate relief valve  
1. Before proceeding, verify that the relief valve outlet has  
been piped to a safe place of discharge, avoiding any  
possibility of scalding from hot water.  
Figure 3 Manual Air Vent  
MANUAL  
AIR VENT VALVE  
To avoid water damage or scalding due  
ƽ WARNING  
to valve operation, a metal discharge  
line must be connected to the relief  
valve outlet and run to a safe place of  
disposal. This discharge line must be  
installed by a qualified heating installer  
or service technician in accordance with  
the instructions in the Outdoor Knight  
Boiler Installation and Operation Manual.  
The discharge line must be terminated  
so as to eliminate possibility of severe  
burns or property damage should the valve  
discharge.  
Test low water cutoff (if installed)  
2. Read the boiler pressure/temperature gauge to make  
sure the system is pressurized. Lift the relief valve  
top lever slightly, allowing water to relieve through  
the valve and discharge piping.  
1. If the system is equipped with a low water cutoff, test the  
low water cutoff periodically during the heating season,  
following the low water cutoff manufacturer’s  
instructions.  
3. If water flows freely, release the lever and allow the valve  
to seat. Watch the end of the relief valve discharge pipe  
to ensure that the valve does not weep after the line has  
had time to drain. If the valve weeps, lift the seat again to  
attempt to clean the valve seat. If the valve continues to  
weep afterwards, contact your qualified service  
technician to inspect the valve and system.  
Reset button (low water cutoff)  
1. Testing the low water cutoff shuts the unit off. Press the  
RESET button on the low water cutoff to turn the unit  
back on.  
Check boiler piping (gas and water)  
4. If water does not flow from the valve when you lift the  
lever completely, the valve or discharge line may be  
blocked. Immediately shut down the boiler, following  
the operating instructions on page 9 of this manual. Call  
your qualified service technician to inspect the boiler and  
system.  
1. Remove the boiler front access door and perform a gas  
leak inspection per steps 1 through 7 of the Operating  
Instructions on page 9. If gas odor or leak is detected,  
immediately shut down the boiler following the  
procedures on page 9. Call a qualified service technician.  
2. Visually inspect for leaks around water piping.  
Also inspect the circulators, relief valve, and fittings.  
Immediately call a qualified service technician to repair  
any leaks.  
Shut boiler down (unless boiler is used  
for Domestic Water)  
1. Follow “To Turn Off Gas to Appliance” on page 9 of this  
manual.  
2. Do not drain the system unless exposure to freezing  
temperatures will occur.  
3. Do not drain the system if it is filled with an antifreeze  
solution.  
4. DO NOT shut down boilers used for domestic water  
heating, they must operate year-round.  
8
Outdoor Knight XL User’s Information Manual  
3 Operating instructions  
FOR YOUR SAFETY READ BEFORE OPERATING  
WARNING: If you do not follow these instructions exactly, a fire or explosion  
may result causing property damage, personal injury, or loss of life.  
‡ꢀꢀ,PPHGLDWHO\ꢀFDOOꢀ\RXUꢀJDVꢀVXSSOLHUꢀIURPꢀD  
A. This appliance does not have a pilot. It is  
neighbor’s phone. Follow the gas supplier’s  
equipped with an ignition device which  
instructions.  
automatically lights the burner. Do not try  
‡ꢀꢀ,Iꢀ\RXꢀFDQQRWꢀUHDFKꢀ\RXUꢀJDVꢀVXSSOLHUꢃꢀFDOO  
the fire department.  
to light the burner by hand.  
B. BEFORE OPERATING smell all around  
the appliance area for gas. Be sure to  
smell next to the floor because some gas  
is heavier than air and will settle on the  
floor.  
C. Use only your hand to turn the gas control knob.  
Never use tools. If the handle will not turn by  
hand, don’t try to repair it, call a qualified service  
technician. Force or attempted repair may result  
in a fire or explosion.  
WHAT TO DO IF YOU SMELL GAS  
D. Do not use this appliance if any part has been  
under water. Immediately call a qualified  
‡ꢀꢀ'RꢀQRWꢀWU\ꢀWRꢀOLJKWꢀDQ\ꢀDSSOLDQFHꢁ  
service technician to inspect the appliance and  
to replace any part of the control system and  
any gas control which has been under water.  
‡ꢀꢀ'RꢀQRWꢀWRXFKꢀDQ\ꢀHOHFWULFꢀVZLWFKꢂꢀGR  
not use any phone in your building.  
OPERATING INSTRUCTIONS  
1. STOP! Read the safety information  
above on this label.  
8. Turn gas shutoff valve clockwise to “ON”.  
Handle will be parallel to pipe.  
2. Set the thermostat to lowest setting.  
9. Install top cover.  
10. Turn on all electric power to appliance.  
11. Set thermostat to desired setting.  
3. Turn off all electric power to the  
appliance.  
4. This appliance is equipped with an  
ignition device which automatically lights  
the burner. Do not try to light the burner  
by hand.  
12. If the appliance will not operate, follow the  
instructions “To Turn Off Gas To Appliance” and  
call your service technician or gas supplier.  
5. Remove top cover.  
6. Turn gas shutoff valve counterclockwise  
to “OFF”. Handle will be perpendicular to  
pipe. Do not force.  
7. Wait five (5) minutes to clear out any gas.  
If you then smell gas, STOP! Follow “B”  
in the safety information above on this label.  
If you don’t smell gas, go to next step.  
TO TURN OFF GAS TO APPLIANCE  
1. Set the thermostat to lowest setting.  
4. Turn gas shut off valve counterclockwise to  
“OFF”. Handle will be perpendicular to pipe.  
Do not force.  
2. Turn off all electric power to the appliance  
if service is to be performed.  
5. Install top cover.  
3. Remove top cover.  
LBL2284 REV -  
9
Outdoor Knight XL User’s Information Manual  
4 SMART SYSTEM control module  
Outdoor Knight XL 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 SELECT Key  
Access modes  
Adjusting parameters  
Before changing parameters, note the  
settings so that the unit can be returned  
to its original operating parameters.  
Please note that the brackets ([]) denote  
screen status.  
NOTICE  
CAUTION  
User  
The control uses an internal clock for the night setback  
feature and for logging of events. For these features to  
work properly, the clock must be set when the boiler is first  
installed or any time the boiler has been powered off for  
more than four (4) hours. This parameter must be accessed  
to set the clock.  
The user can adjust space heating and tank target temperatures  
by pressing the NAVIGATION dial when “SETPOINTS” is  
flashing at the bottom of the display. The user can adjust the  
date and time, temperature units, and night setback override  
(if active) by pressing the LEFT SELECT [MENU] key for  
5 seconds. When the user password “0000” appears, then  
press the RIGHT SELECT [SAVE] key (do not change the  
password).  
The internal clock does not adjust for  
NOTICE  
Daylight Savings Time and therefore,  
will require a manual adjustment.  
Installer  
To set the clock, access the clock menu as described in the  
User section. Rotate the NAVIGATION dial (if needed)  
until the arrow (>) is pointing to “TIME & DATE”. Press the  
NAVIGATION dial once. If the date and time are incorrect,  
press the NAVIGATION dial again. The hours value will  
begin flashing. Rotate the NAVIGATION dial until the hour  
and AM/PM values are correct. Press the NAVIGATION  
dial again. The minutes value will begin flashing. Rotate  
the NAVIGATION dial to adjust the minutes. Repeat this  
procedure to adjust the month, date and year. Save the  
new settings as described in the Saving Parameters section  
(this page).  
Most parameters are available only to the installer, accessible  
only by entering the installer password, see the Knight XL  
Service Manual.  
Saving parameters  
Press the RIGHT SELECT [SAVE] key one time to return to  
the parameter listing. Press the RIGHT SELECT [HOME]  
key again to store the new settings and return to the Status  
Screen.  
10  
Outdoor Knight XL User’s Information Manual  
4 SMART SYSTEM control module  
(continued)  
Night Setback Override  
Space heating (SH1, SH2, SH3) and tank set points  
Any Night Setback On trigger currently active or scheduled  
within the next seven (7) days can be skipped. To skip a  
trigger, rotate the NAVIGATION dial until the arrow (>) is  
next to the trigger you wish to skip. Press the NAVIGATION  
dial once. “SK” will appear next to that trigger to indicate  
that it will be skipped. You can restore an upcoming trigger  
by selecting that trigger, and pressing the NAVIGATION dial  
again. The “SK” next to that trigger will disappear.  
Mixing valves are required for the  
protection of any low temperature loops.  
CAUTION  
There are three (3) individual user set points for better zone  
control. These are listed as SH1 Set Point through SH3 Set  
Point. If multiple set points are calling for heat the highest set  
point has priority. The range is SH Minimum Set point to SH  
Maximum Set point (32°F (0°C) - 190°F (88°C)). The default  
is 125°F (52°C).  
To save any changes and return to the Home Screen, press  
the RIGHT SELECT [HOME] key. To return to the Status  
Screen without saving the changes, press the LEFT SELECT  
[EXIT] key.  
By installing a tank sensor, the SMART SYSTEM control can  
perform the tank thermostat function. The SMART SYSTEM  
control automatically detects the presence of this sensor, and  
generates a DHW call for heat when the tank temperature  
drops 6°F (-14°C) below the tank set point differential (Tank  
Set point Differential parameter), and finishes the call for heat  
when the tank temperature reaches tank set point + offset.  
This parameter can be changed by the installer by accessing the  
DHW Tank Set point parameter. The temperature range of this  
parameter is 68°F (20°C) to 190°F (88°C). The default value is  
125°F (52°C).  
Temperature Units  
The control can be configured to display temperature in  
either °F or °C. This parameter can be changed by the user  
or the installer by accessing the Temperature Units parameter.  
The default is °F. To change the temperature units, access  
the clock menu as described in the User section (this page).  
Rotate the NAVIGATION dial until the arrow (>) is pointing  
to “TEMPERATURE UNIT °F”. Press the NAVIGATION  
dial once. The temperature unit will begin to flash. Rotate  
the NAVIGATION dial until the desired temperature unit  
is shown. Save the new setting as described in the Saving  
Parameters section (page 10).  
Press the NAVIGATION dial once. A menu will appear  
showing the SH1, SH2, SH3, and DHW Set Points. Rotate  
the NAVIGATION dial until the arrow (>) is pointing to the  
setting you wish to change. Press the NAVIGATION dial again.  
The value of the selected setting will begin to flash. Rotate the  
NAVIGATION dial to adjust the value. Save the new setting as  
described in the Saving Parameters section (page 10).  
Manual and auto reset high limit set points  
The set points used by the Manual Reset High Limit and the  
Auto Reset High Limit are adjustable through the display. To  
access these settings, press the NAVIGATION dial once, then  
press the LEFT SELECT [LIMITS] key once. The two settings  
appear. Rotate the NAVIGATION dial as needed so the arrow  
(>) points to the limit setting you wish to adjust. Press the  
NAVIGATION dial once. The value of that setting will begin  
to flash. Rotate the NAVIGATION dial to change the value  
to the desired set point. Press the RIGHT SELECT [SAVE]  
key to save the new value, or the LEFT SELECT [EXIT] key to  
leave the set point at the original value. The other high limit  
setting may then be changed using the same procedure, if  
desired. When finished, press the RIGHT SELECT [HOME]  
key to store the new settings, or the LEFT SELECT [EXIT] key  
to return to the Space Heating and DHW Set Points Menu.  
11  
Outdoor Knight XL User’s Information Manual  
4 SMART SYSTEM control module  
Figure 5 Status Display Screen  
B
A
(CALL FOR  
HEAT)  
(BOILER  
STATUS)  
C
(OPERATIONAL  
INFORMATION)  
F
D
(LEFT SELECT  
KEY)  
(RIGHT 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  
has it received a call for heat from a DHW thermostat.  
STANDBY  
START  
The unit has begun a burn cycle and is checking all safety circuits.  
The unit has initiated a prepurge period on a call for heat.  
PREPURGE  
IGNITION  
The unit has begun a spark period to ignite the main burner.  
The unit has fired and is running at the displayed percentage.  
A
%
(Boiler Status  
Bar)  
The call for heat has been satisfied and the unit runs the fan for an  
additional postpurge period to clear the combustion chamber and  
vent system of residual flue products.  
POSTPURGE  
SHUTDOWN  
The unit has been placed in the OFF position.  
The controlled temperature has exceeded its set point and its offset.  
The unit has detected a condition that has temporarily interrupted  
the current call for heat.  
BLOCKED  
Room Thermostat 1 has a call for heat.  
Room Thermostat 2 has a call for heat.  
Room Thermostat 3 has a call for heat.  
B
The tank thermostat or sensor has a call for heat.  
(Call for Heat  
Indicators)  
Indicates which room thermostat demand shows priority.  
The unit is being controlled by a 0 - 10V BMS signal.  
The member unit is supplying heat while in Cascade Mode.  
12  
Outdoor Knight XL User’s Information Manual  
4 SMART SYSTEM control module  
(continued)  
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).  
The temperature read by the outdoor sensor.  
OUTDOOR:  
INLET TEMP:  
OUTLET TEMP:  
DELTA T:  
The temperature read at the inlet to the heat exchanger.  
The temperature read at the outlet of the heat exchanger.  
The temperature difference between the inlet and the outlet of the  
heat exchanger.  
FLUE TEMP:  
The temperature read by the flue sensor.  
FLAME CURRENT:  
The current measured by the flame sense circuit.  
FAN SPEED:  
The speed of the combustion blower.  
BOILER PUMP:  
SYSTEM PUMP:  
DHW PUMP:  
The status of the boiler pump output.  
The status of the system pump output.  
The status of the DHW pump output.  
C
(Operational  
Information)  
BMS VOLTAGE:  
The voltage received from a BMS system.  
BLR PUMP OUTPUT:  
The speed signal sent to a variable speed boiler pump in percent.  
SYS PUMP INPUT:  
The speed signal received from a variable speed system pump control.  
RATE OUTPUT:  
SH RUN HOURS:  
SH CYCLES:  
A 0 - 10V signal indicating the firing rate of the boiler.  
The total hours of operation in the Space Heating Mode.  
The total burner cycles in the Space Heating Mode.  
The total hours of operation in the DHW Mode.  
The total burner cycles in the DHW Mode.  
DHW RUN HOURS:  
DHW CYCLES:  
LAST 10 FAULTS NO:* The last 10 lockouts.  
NIGHT SETBACK Shows the next Night Setback trigger (if active).  
13  
Outdoor Knight XL User’s Information Manual  
4 SMART SYSTEM control module  
Status Display Screens (cont’d)  
Section  
Display  
Description  
Press and hold the LEFT SELECT key for 5 seconds to enter the Menu  
Screen.  
MENU  
EXIT  
YES  
Press the LEFT SELECT key to exit the current screen or setting.  
Press the LEFT SELECT key to confirm that the boiler needs to  
shutdown.  
D
(LEFT SELECT  
key function)  
Press the LEFT SELECT key to enter the screen that allows you to  
adjust the limit settings.  
LIMITS  
HOME  
SKIP  
Press the LEFT SELECT key to return to the Status Screen and upload  
parameter changes.  
Press the LEFT SELECT key when in the Night Setback Screen to  
access the Night Setback Skip Screen.  
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  
the cursor.  
E
(NAVIGATION  
Dial Function)  
Pressing the NAVIGATION dial will display the Set Points Screen.  
Turning the NAVIGATION dial will move the cursor up or down.  
Turning the NAVIGATION dial will increase or decrease the current  
setting.  
SHDN  
ON  
Press the RIGHT SELECT key to turn the boiler OFF.  
Press the RIGHT SELECT key to turn the boiler ON.  
F
NO  
Press the RIGHT SELECT key to cancel the shutdown operation.  
Press the RIGHT SELECT key to save the current change.  
(RIGHT SELECT  
key function)  
SAVE  
HOME  
Press the RIGHT SELECT key to return to the Status Screen and  
upload parameter changes.  
14  
Outdoor Knight XL User’s Information Manual  
Notes  
15  
Revision Notes: Revision A (ECO C11234) initial release.  
OKB-USER Rev A  
10/12  

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