Weil-McLain SB0002 Service manual

In an effort to provide the industry with the best available technology for clean efficient
combustion of fuel oil, Weil-McLain has standardized the GOLD Oil boiler burner control offering
to include the Carlin 60200-02 primary control and 14,000 volt solid state ignitor. Listed below
are some helpful tips for understanding these new controls.
Carlin 60200-02 Primary Control Standard Features / Benefits:
♦Interrupted Duty – Turns off the ignition ignitor once the flame is established reducing
energy consumption and minimizing component wear.
♦Self-Diagnostic Check – On each call for heat, control performs a 4-second check of
internal circuitry. Helps prevent burner runaway in the event of a welded set of motor
contacts.
♦10 Second Valve-On-Delay (Prepurge) – Allows the burner motor and fuel oil pump to
come fully up to speed and pressure prior to opening the oil solenoid valve and igniting the
oil which provides cleaner startups.
♦10 Second Motor-Off-Delay (Postpurge) – Closes solenoid valve cutting off fuel supply
while keeping the motor and blower on to complete combustion process, virtually eliminating
smoke on shutdown.
♦15 Second Trial For Ignition – If oil fails to ignite in the first 15 seconds, control will lock out
reducing potential for oil soaked chambers.
♦Flame Stabilization Period – Ignitor / spark remains on for 10 seconds after trial for ignition
period ends.
♦Recycle – If control detects a flame failure, the burner will shut off in 1.3 seconds after loss
of flame and then automatically commence with a 65-second recycle period after which
control will go through another trial for ignition cycle.
♦Latch up – If control sees 3 consecutive lock-outs on the same call for heat, control will
enter latch-up potentially eliminating flooded chambers from repeated homeowner attempts
of pushing reset button.
♦Alarm Contacts – Close when control is in a lock-out or latch-up condition. Control may be
connected to a separate security system for notification of a no heat situation.
♦Warranty – 3 years.
Primary Control Sequence of Operation:
1. Call for heat initiated.
2. Microprocessor performs a 4-second diagnostic self-check of internal control circuitry.
3. 1-second pre-ignition (ignitor energized with spark on).
4. 10-second valve-on-delay (prepurge).
5. Solenoid valve is energized allowing fuel to flow to nozzle and spark.
6. 15-second trial for ignition. If no flame is established, control will lock out after 15
seconds.
Number: SB0002 (Page 1 of 2)
Date: February 2, 2000
Subject: GOLD Oil Boiler Primary Burner Controls #60200-02

Technical Services Bulletin No: SB0002 (Page 2 of 2)
Subject: GOLD Oil Boiler Primary Burner Controls #60200-02
Date: February 2, 2000
7. 10-second flame stabilization period (flame established / spark remains on). If flame is
established and extinguished, the control detects a flame failure and will shut off the fuel
supply within 1.3 seconds. The control then enters a 65-second recycle period. After 65
seconds, the control returns to the call for heat and begins another diagnostic self-check.
8. Ignitor shuts off (spark off) – burner is now in normal cycle.
9. Call for heat is satisfied. Solenoid valve is deenergized extinguishing flame.
10. 10-second motor-off-delay (postpurge).
11. Burner off.
Primary Control LED Status Indicators:
♦Amber Light “On Steady”: Control is conducting a 4-second diagnostic self-check of
internal circuitry.
♦Amber Light “Flashing”: Control has detected a failure in the diagnostic self-check.
♦Red Light “On Steady”: Control is in lock-out. Reset button must be depressed for 1
second to remove from lock-out condition.
♦Red Light “Flashing”: Control is in recycle. Control has detected a loss of flame during
the run cycle. Burner is off and control is performing a 65-second recycle after which the
burner begins sequence of operation over and will try again for ignition.
♦Red and Amber Lights “On Steady”: Control is in latch-up. The control has experienced
3 consecutive lock-outs in one call for heat. To remove from latch-up, depress the reset
button for 30 continuous seconds. After 10 seconds of depressing the reset button, the red
and amber lights will begin to flash alternately for the remaining 20 seconds. After
depressing the reset button for the full 30 seconds, the red and amber lights will go out.
Remove your finger from the reset button and the control will return to “call for heat” position.
Carlin CCT4100 14,000-Volt Solid State Ignitor Standard Features / Benefits:
♦14,000 Volts – provides stronger / hotter spark.
♦Energy Efficient – uses only 40 VA versus approximately 240 VA standard.
♦Constant Secondary Voltage – does not fluctuate with changes in primary voltage supply.
♦Does Not Weaken Over Time – either works or it doesn’t.
♦Lighter – weighs several pounds less than a standard transformer.
♦Standard Off the shelf Part – no more special OEM transformer specifications. It is
backward compatible.
♦Warranty – 3 years.
For additional information on the operation of the controls including possible causes of lock-out
and latch-up, refer to the instruction manual supplied with each burner.
Attachments: WGO, WTGO, SGO & SGO-W Wiring Addendum #550-141-851/0599