Carlin 70200 User Manual
Page 3

Power ON
Open all manual oil line valves. Close the line switch.
Call for heat
Set thermostat (and limit) to call for heat. Thermostat circuit must be closed and power must be coming to black wire from
limit
circuit.
Burner on
The ignitor starts, followed 3 seconds later by the motor. (This delay compensates for sluggish start-up of some AC
transformers).
Valve Delay On
The oil valve opens after the Valve Delay On period (pre-purge).
Note: For oil valve delay on operation, wire oil valve to
the violet terminal. If not using an oil valve, cap the violet terminal to automatically disable pre-purge and post-purge).
TFI
The CAD cell must sense flame within the TFI time limit. Insufficient flame puts control into lockout.
NOTE: Push View Ohms button anytime during run to view Ohms reading.
Run
The burner continues firing during call for heat if the CAD cell senses flame.
Lockout
If CAD cell does not sense flame within the TFI time limit after burner starts, lockout occurs.
To Reset
Push in and hold the red
Reset button for 1 second, then release.
Latch-up
If the control locks out 3 times during a single call for heat, latch-up occurs and will be displayed on screen. The
procedure below must be used to reset the control after latch-up.
Only a qualified service technician should attempt to reset the control after latch-up.
Reset after
The problem that caused the repeated burner lockouts must be corrected before returning the burner to normal
Latch-up
operation. Push in and hold the red
Reset button for 30 seconds. After 30 seconds, the word
Latch-up will disappear
from the screen and the control will now be in
Standby ready to resume normal operation.
NOTE:
The 70200 control will not reset from lockout or latch-up if power is interrupted.
Flame failure
If the CAD cell loses flame signal during operation (after the TFI), the oil valve closes within 2 seconds. The motor re-
mains on for the Motor Delay Off period, then shuts off. (If no oil valve is wired to the control, the burner shuts down
within 2 seconds.) Recycle: Control waits for 65 seconds then returns to standby.
Delay Motor Off Set thermostat (or aquastat) to stop call for heat. The oil valve (if installed) will turn off within 2 seconds. The motor
remains on for the Motor Delay Off period (post-purge), then turns off. (If no oil valve is wired to the control, the burner
shuts off within 2 seconds after end of call for heat. There is no post-purge).
Stand-by
The control remains in stand-by mode until limit circuit sends power to the black wire and thermostat circuit closes (call for
heat).
Operating and Fault History
The 70200 stores all operating history and information from the last 50 cycles in which a fault condition occurred.
To Enter the History Menu: Simultaneously press and hold the ▼ + ► buttons for 2 seconds. The display will read
To Exit History ESC for 3
Sec.
To View Operating History: Once in the History mode (above), press the ► button, the display will read:
Fault Cycles then press the ▼ button
to scroll through the operating history which includes:
Total Cycles, Total Run Time, Total Burn Time, Total On Time, Baseline
Time, Max Line Volts, Min Line Volts, Recycles, Run Time, Burn Time, Max Flame Delay, and CFH Cycles.
To View Fault History:
1. Once in the History mode, press the ► button, the display will read:
Fault Cycles followed by the number of cycles (max 50)
that have experienced a fault condition since the last Baseline Reset.
2. Press the ► button again to scroll through the history of fault conditions. The control will display
1: Fault Message. The number 1
indicates that this was the most recent fault condition experienced.
Pump Prime
The 70200 control is equipped with a 120 second pump prime feature. To enter Pump Prime, Limit Input must
(
Bleeding)
be present.
If a flame is present, the control will not enter Pump Prime mode.
To bleed the oil line, with Limit icon on, push and hold red
Reset button for 5 seconds. The display will read
Pump
Prime. The motor, valve and ignitor remain on for up to 2 minutes while in Pump Prime mode. To end Pump Prime mode,
press
the
red
Reset button. Note: If flame is sensed, Pump Prime mode ends in 5 sec.
*Pump prime cannot be entered from Lockout or Latch-up.