Force FORCEOL115-E, Инструкция по установке, эксплуатации и обслуживанию

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106346-06 - 8/19
FORCE
Installation, Operating & Service Manual
NOTE: DO NOT remove "T-T" jumper
unless wiring diagram indicates a direct
connection from thermostat and/or
tankless heater HydroStat 3250 control
to the oil burner primary control's "T-T"
terminal. Refer to appropriate wiring
diagram, see Figures 27 and 28.
vi . Diagnostic LED: The indicator light on
oil primary control provides lockout,
recycle and cad cell indications as
follows:
•
Flashing at 1 Hz (½ second on, ½
second off): system is locked out or
in Restricted Mode.
•
Flashing at ¼ Hz (2 seconds on,
2 seconds off): control is in Recycle
Mode.
•
On: cad cell is sensing flame.
•
Off: cad cell is not sensing flame.
vii. Cad Cell Resistance Check: For proper
operation it is important that the cad
cell resistance is below 1600 ohms.
During a normal call for heat, the cad
cell leads can be unplugged from the
control and the resistance measured
with a meter in the conventional way.
Conduct these tests with flame present,
see chart below.
Flame Detection Range
Normal (0 - 1600 ohms)
Limited (1600 ohms to lockout)
3. CHECK OIL PRIMARY CONTROL
CAUTION
Due to the potential hazard of line voltage,
only a trained, experienced service technician
should perform the following safety checks.
This control contains no field-serviceable parts.
DO NOT attempt to take it apart. Replace entire
control if operation is not as described.
a. Preliminary Steps
• Check wiring connections and power
supply.
• Make sure power is on to the controls.
• Make sure limit control is closed.
• Check contacts between ignitor and the
electrodes.
• Check the oil pump pressure.
• Check the piping to the oil tank.
•
Check the oil nozzle, oil supply and oil
filter.
b. Check Safety Features
Safe Start:
• Place a jumper across cad cell terminals.
• Follow procedure to turn on burner.
Burner must not start, indicator light turns
on and control remains in Idle Mode.
• Remove jumper.
c. Simulate Ignition or Flame Failure:
• Follow procedure to turn on burner.
• Check cad cell resistance. If resistance
is below 1600 OHMS and burner runs
beyond safety cut-out time, cad cell is
good.
• If safety switch shuts down burner and
resistance is above 1600 OHMS, open
line switch to boiler. Access cad cell
under ignitor, clean face of cad cell
and see that cell is securely in socket.
Check gasket around perimeter of ignitor
lid for proper seal. If gasket is missing
or damaged, replace gasket. Room light
can effect cad cell resistance. Reset
safety switch.
• Close line switch to boiler. If burner starts
and runs beyond safety switch cut-off
time, cell is good. If not, install new cell.
• Close hand valve in oil supply line.
• Failure occurs, device enters Recycle
Mode.
• Device tries to restart system after
approximately 60 seconds.
• After third Recycle Mode trial, safety
switch locks out within safety switch
timing indicated on label and control
enters Restricted Mode. Ignition and
motor stop and oil valves closes.
d. Power Failure Check: After Flame is
established, turn the power off to the
control/burner. The burner should shut
down safely. When power is restored a
normal ignition sequence should be started.
WARNING
Cad Cell Jumper must be removed after this
check.
4. CHECK HIGH LIMIT
a. Adjust system thermostat(s) to highest
setting.
b. Allow burner to run until boiler water
temperature exceeds high limit setting. The
burner should shut down and circulators
continue running.
10
System Start-Up
(continued)
!
!