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Produttore : White Rodgers
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File Nome : 0037-5456.pdf
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DESCRIPTION The type 668 Oil Burner Control provides safe operation of oil burners on heating plants where ignition during the entire burner cycle is desired. The 668 is used with the 956 Flame Detector * Formerly called constant ignition. PRECAUTIONS If in doubt about whether your wiring is millivolt, line, or low voltage, have it inspected by a qualified heating and air conditioning contractor, electrician, or someone familiar with basic electricity and wiring. Do not exceed the specification ratings. All wiring must conform to local and national electrical codes and ordinances. This control is a precision instrument, and should be handled carefully. Rough handling or distorting components could cause the control to malfunction. Electrical Data Input voltage: 668 120V. AC, 60Hz. 668H 220V. AC, 50/60Hz. Maximum Load Current: Oil Burner Motor (Orange Wire): 10 Amps F.L. 60 Amps L.R. Ignition Transformer: 360VA (3.0 Amps) Relay Voltage: 668 24 Volts AC, 60Hz. 668H 24 Volts AC, 50/60Hz The proper Location and Mounting of the primary oil burner control panel on the burner and the flame detector with respect to the oil flame shall be determined by the furnace, boiler, or burner manufacturer. If this control, supplied as part of a furnace, boiler or burner, is wired to the equipment or if the manufacturer of such equipment provides instructions for wiring this To prevent electrical shock and/or equipment damage, disconnect electric power to system, at main fuse or circuit breaker box, until installation is complete. CAUTION! Do not use on circuits exceeding specified voltages. Higher voltages will damage control and could cause shock or fire hazard. WARNING! SPECIFICATIONS Room Thermostat: Set adjustable heat anticipator at 0.4 Amps. For fixed anticipation thermostats, use 0.35 to 0.45 Amp. heater. Safety Timing: 668, 668H-401 to 499: 45 seconds 668, 668H-501 to 599: 30 seconds 668, 668H-601 to 699: 15 seconds INSTALLATION AND WIRING control, then follow his recommendations. If no special wiring instructions are given, then follow the electrical connections shown on this diagram for a simple system. For more complicated systems, especially for hot water heating, consult the manufacturer of the heating plant for full details of the desired sequence of control operation. WHITE-RODGERS DIVISION EMERSON ELECTRIC CO. PART NO. 37-5456A 9797 REAVIS RD., ST. LOUIS, MO. 63123 Replaces 37-1794 & (314) 577-1300, Fax (314) 577-1517 Printed in U.S.A. 9999 HWY. 48, MARKHAM, ONT. L3P 3J3 (905) 475-4653, FAX (905) 475-4625 INSTALLATION AND WIRING CONT. All wiring should be done in accordance with local and national electrical codes and ordinances. LOW VOLTAGE PRIMARY CONTROL LINE VOLTAGE PRIMARY CONTROL THERMOSTAT FLAME DETECTOR FIELD INSTALLED JUMPER TT F F TT F F FLAME DETECTOR WIRE WIRE NUTS NUTS External Line Voltage Wiring External Line Voltage Wiring TESTING ORANGE IGN. TRANS. PRIMARY CONTROL WHITE BLACK LIMIT LINE BURNER MOTOR HOTN LINE VOLTAGE THERMOSTAT OR OPERATING CONTROL IGN. TRANS. ORANGE PRIMARY CONTROL WHITE BLACK LIMIT LINE HOT N BURNER MOTOR The following control checks should be made after each installation to insure that the controls are correctly wired and functioning properly. 1. Open the main line switch. 2. Adjust thermostat or operating control to call for heat. 3. Operate the manual reset button on top of control. 4. Make certain that high limit control is set at the correct temperature. 5. Open the hand valve in the oil line. The system is now ready for the following tests. A. NORMAL CYCLE: Close the line switch. The burner should start and continue to run normally. (If burner starts, establishing flame, but then locks out on safety, make “Flame Detector Check” at this time. B. SAFETY TIMING: 1. Let the burner run for about 5 minutes. Then remove one of Flame Detector leads from the “F” terminals. After a time period corresponding to the safety timing has elapsed, the control should lock out on safety, stopping the burner. 2. Open the line switch. 3. Replace Flame Detector lead removed in step 1. 4. Wait about 3 minutes. Then operate the manual reset button on top of control. C. HIGH LIMIT AND THERMOSTAT CHECK: 1. Close the line switch to start the burner. 2. Lower the setting of the high limit control to its lowest setting. This should stop the burner, unless furnace or boiler temperature is below the minimum setting of the high limit. 3. Return high limit control to its proper setting. Burner should restart. 4. With the burner running, turn thermostat to its lowest setting. This should stop the burner, unless actual room temperature is below the lowest setting of the thermostat. NOTE On systems supplying domestic hot water, burner will continue to run if low limit control is not satisfied. 5. Return thermostat to its proper setting. D. FLAME DETECTOR CHECK: (This test is not required if the control performs as described in test A.) If the burner starts but the control locks out (stopping the burner),...