K2 Quick Start Guide

“Quick Start” Guide
IMPORTANT: Follow all pre-start checks, inspections, and boiler fill instructions prescribed in the K2WT Boiler Installation, Operating and
Service (I,O&S) instructions. Check and correct any gas line leaks. Purge all air pockets. Follow instructions to bleed air from heat exhanger
with 1/4” tubing. A separate conversion kit and instructions are required to convert to L.P. gas (propane). Do not operate LP-fueled boilers
without proper LP conversion and adjustments. If installation is above 2,000 ft., see I,O&S Instructions Appendix A.
Boiler 1
180 F
Status
Detail
Help
Adjust
Standby
Energy Save On
Max Efficiency On
i
Start boiler following instructions
inside boiler front panel.
Boiler display should look like
illustrations (at right).
NOTE: Boiler will attempt to fire
30 seconds after a call for heat.
Consult I,O&S Instructions if the
boiler enters a soft lockout after
six ignition tries.
1.
Boiler 1
180 F
Status
Detail
Help
Adjust
Central Heat
Energy Save On
Max Efficiency On
i
Without
a call for
heat
With
a call
for
heat
2.
Inspect flame through window. A high fire
flame should be stable and blue without
yellow tipping. Intermittent yellow and
orange flecks are OK.
3.
Verify inlet gas pressure. It should be
within the proper range when all gas
appliances are on and off.
GAS PRESSURE REQUIREMENTS (0-2,000 ft only)
Max: 14.0 in.wc
Min: 2.5 in.wc (natural gas), 11.0 in.wc (L.P. gas)
5.
Use commands at right to check CO2 (or O2) and
CO at both HIGH FIRE and LOW FIRE.
HIGH FIRE / LOW FIRE Test Command Sequence
(starting from boiler display HOME screen)
•Press“ADJUST” twice
•Press“LOGIN”
•Press“00000”
•Type“86”
•PressRETURN ARROW
•Press“SAVE”
•Press“ADJUST”
•Press“MANUAL CONTROL”
•Press“HIGH”
•Completefullcombustiontest(Step6)
•Press“LOW”
•Completefullcombustiontest(Step6)
•(aftercombustiontest)Press“AUTO FIRE”
PERFORM COMBUSTION TESTS. Check and adjust
combustion readings per below. Final readings must
be taken with all boiler doors and covers in place.
• Checkathighfireandlowfire.
• Replacecapontheboilerventadapterimmediatelyupon
removalofprobe!
NOTE: If throttle screw is far out of adjustment, boiler will not
start or pass combustion. If so:
• Shutdownboiler.
• Fullyclosethrottlescrew.
• Re-openscrewtonumberofturnsinI,O&SInstructions.
6.
Check ignition safety shut-off on firing boiler.
• Carefullyunplugorangeflamerodwireatthe
flame rod using insulated pliers.
• Theburnershouldshutoffimmediately.
• Reconnectflamerodwire.
7.
4.
Connect combustion analyzer – Insert probe into
test port in the boiler vent adapter.
ACCEPTABLE COMBUSTION READINGS
10:1 models only: K2WT-080B to K2WT-180B
0-2,000 ft; Otherwise see I,O&S Instructions
Max. CO Air free: 200ppm
Natural Gas
CO
2
*: 8.7% to 9.2% O
2
**:5.6%to4.7%
*Low fire CO
2
must be less than or equal to high fire CO
2
**Low fire O
2
must be greater than or equal to high fire O
2
LP Gas
See separate instructions for conversion kit and
acceptable readings
Models K2WT-080B to K2WT-180B; 10:1 turndown