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KN INSTALLATION AND OPERATION INSTRUCTIONS
Starting the boiler
Failure to adhere to the following could result in severe personal
injury, death or substantial property damage.
Accessibility
The boiler must be accessible from both the right and left sides in order to do a
correct start-up/adjustment. Make sure the flame window on the left side and
the gas valve throttle adjustment opening in the jacket top are accessible. See
Figure 29, page 38.
Follow the start-up checklist
Perform the start-up check list procedures before starting the boiler.
Turn off power and fuel supply
Turn off electrical power to boiler if not already off. Close the main manual gas
valve at the boiler.
Verify the gas type
Check the boiler rating plate to make sure that the boiler is for the type of gas
that will be used. If it is not, do not the boiler will have to be adjusted for the
correct gas, for both high fire and low fire.
Install boiler per manuals
Read and follow all boiler instructions, including this Boiler manual, the
K N
Vent/air manual and the
K N
Control manual.
All water piping, gas piping, vent piping and air piping must be complete
before starting the boiler.
Check gas piping for leaks
Check all gas piping for leaks, including the boiler interior gas piping and
connections, per page 19 of this manual.
Never leak test with flame
Never use an open flame to test for gas leaks. Always use an approved leak de-
tection method.
Propane gas applications
The odorant in propane gas can fade over time, reducing or eliminating the
gas odor. This makes the gas undetectable by smell. Before start-up, and
periodically afterwards, have the propane supplier check/verify the odorant
level.
Never attempt to measure gas valve outlet
pressure
Do not attempt to measure the boiler gas valve outlet pressure. The high
negative pressure in the venturi can suck fluid out of a manometer, pulling it
into the gas valve. This would destroy the gas valve, rendering it unusable.
Start-up checklist
❑
Read all boiler manuals
• The
K N
is supplied with three manuals:
• Boiler manual
• Vent/air manual
• Control manual.
• Read and familiarize yourself with all three manuals before
proceeding with start-up.
❑
Check the boiler area
• Make sure there are no combustible materials or chemicals
that could cause air contamination in the boiler room.
❑
Verify vent piping
• Inspect vent piping to be sure all joints are secure and
properly sealed.
• Verify vent piping supports are correctly placed and secure.
• Check vent termination to be sure it is correct and not
obstructed.
• Measure total vent pipe length and note the number of
fittings. Make sure the vent complies with the
K N
Vent/air
manual.
❑
Verify combustion air and ventilation
• If combustion air is supplied from the boiler room, make
sure air openings agree with the requirements given in this
manual.
• If combustion air is piped to the boiler:
• Inspect air piping to be sure all joints are secure and
properly sealed.
• Verify air piping supports are correctly placed and
secure.
• Check air inlet termination to be sure it is correct and
not obstructed.
Should overheating occur or
gas supply fail to shut off:
Do not interrupt water flow to the boiler.
Instead, shut off gas supply to the boiler
with the manual valve in the gas supply
line.
En cas de surchauffe ou si
soupape en gaz ne s’arrête
pas :
N’interrompez pas l’écoulement d’eau
par la chaudière. Fermez manuellement
le robinet d’arrêt de l’admission de gaz.
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