ENERGY KINETICS EK1C, Инструкция по установке и обслуживанию

Страница: 45 / 75

Accel CS Boiler - Gas Heat - Eighth Edition – January, 2015
44
GAS VALVE SETUP PROCEDURE
•
Verify gas supply pressure to the appliance with a manometer
connected to the inlet pressure port.
Natural Gas: 3.5” – 10.5”w.c.
LPG: 8” – 13”w.c.
•
Using combustion test equipment, insert the probe into the exhaust gas
outlet (flue port)
•
Start appliance by turning on a hot water tap, which will start the boiler
for hot water production. We need a large load on the boiler in order to
run at full firing rate. To prevent the burner from modulating down use
the domestic hot water demand or a large volume central heat zone.
Refer to the table below for the proper modulation maximum and
minimum fan speeds.
Method 1
If the INFO > Test screen displays two options as shown above, use the
following setup procedure:
1. Perform carbon monoxide test two minutes after light off. If the
carbon monoxide exceeds 400 ppm air-free after two minutes of
operation, shut off boiler immediately and repeat "Prepare for Start
Up" checklist.
2. Set appliance ‘max modulation rate’ to maximum desired fan
speed : INFO > Advanced Setup > Modulation Config. Use left and right
arrows only. To delete prior setting, arrow to DEL and press OK until cleared,
then use arrows to enter the max fan speed.
See Fan Speed chart in section Length of Run, Intake and Vent for fan
speed ranges. Selecting fan speeds outside the recommended ranges may cause a lockout.
3. Check that O2 reading is 4.5% and adjust throttle screw if necessary. Turn
throttle screw clockwise to increase O2 and counter clockwise to decrease O2
for EK1Cs and EK2Cs. For EK3Cs, the throttle valve can be turned
continuously (4 full turns of the throttle adjustment screw will leave the throttle
back at the starting point)--turn in one direction and note if the O2 increased
or decreased, and proceed using that as a reference to adjust the screw in
the proper direction to set the O2 reading to 4.5%.
4. Keep appliance running until stabilized, about 15 to 20 minutes, make
adjustment when necessary.
5. Set appliance max modulation rate to minimum desired fan speed: INFO >
Advanced Setup > Modulation Config. Use left and right arrows only. To
delete prior setting, arrow to DEL and press OK until cleared, then use arrows
to enter min fan speed.
See Fan Speed chart in section Length of Run,
Intake and Vent for fan speed ranges . Selecting fan speeds outside the
recommended ranges may cause a lockout.
6. Remove cap screw with a Torx T-40 screw driver or 5 mm hex key to expose
offset adjustment screw.
7. Check that offset O2 reading is 4.5% and adjust if necessary- clockwise to
lower O2 (raise CO2, or make mixture richer) and counterclockwise to raise
O2 (lower CO2, or make mixture leaner).
8. Reset appliance fan speed to max fan speed (see Item 2 above). Verify
speed is at max fan speed.
9. Repeat steps 2 through 8, inclusive, when adjustment of offset valve was
necessary, resetting ‘max modulation rate’ to max fan speed.
10. After adjustments are made, stop appliance, disconnect pressure gauge and
OK
HOME
INFO
BACK
Test
Forced Rate _____________
Manual Pump Operation
Offset adjustment valve screw is
under this cap. Both are Torx T-
40 (or 5mm hex key).
Gas valve throttle
screw is located inside
red collar well.
EK3C Gas Valve
EK1C & EK2C Gas Valve