Instruction manual

58
Figure 31: Cad Cell Location
• 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.
iv. 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.
SECTION XI: SYSTEM START-UP (continued)
3. 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.
c. Allow the temperature to drop below control
setting. The burner must restart.
d. Boiler installation is not considered complete
until this check has been made.
e. Check low water cut-off control with water level
at normal water line (see Figure 1D). Raise
thermostat setting to allow burner to operate.
Open boiler drain to allow water level to drop
to bottom of sight glass until burner operation is
shut-down by low water cut-off.
Close boiler drain and rell to normal water line.
Burner should automatically restart during ll.
Lower thermostat setting.
f. Check operating control on boiler applications
equipped with tankless heater(s). With burner
off, draw hot water until burner starts, then turn
off hot water and check burner shut-down.
J. IF CONTROLS MEET REQUIREMENT outlined
in Paragraph I.
1. Allow boiler to operate for approximately 30
minute, conrm the boiler and system have no leaks.
K. IF CONTROLS DO NOT MEET
REQUIREMENTS outlined in Paragraphs I-1 thru
I-6, replace control and repeat checkout procedures.