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 |
PRIMARY |
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CONTROL |
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| THERMOSTAT |
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| FLAME |
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| DETECTOR | |
BLACK |
| ORANGE | WIRE |
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WHITE |
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| NUTS |
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| IGN. |
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| TRANS. |
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LIMIT |
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| T | T | F | F |
LINE |
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HOT | N | BURNER |
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| MOTOR |
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External Line Voltage Wiring
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| PRIMARY |
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| CONTROL |
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| FLAME |
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| DETECTOR |
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FIELD |
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INSTALLED |
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| BLACK |
| ORANGE | WIRE | |
JUMPER |
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| NUTS | |
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| IGN. |
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| TRANS. |
T | T | F | F |
| LIMIT |
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| LINE VOLTAGE |
| LINE |
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| THERMOSTAT OR |
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| OPERATING |
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| BURNER |
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| CONTROL | HOT | N |
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| MOTOR |
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External Line Voltage Wiring
TESTING
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, establish- ing 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 |
5. Return thermostat to its proper setting.
D.FLAME DETECTOR CHECK: (This test is not re- quired if the control performs as described in test A.)
If the burner starts but the control locks out (stopping the burner), check the flame detector as follows:
1.Open the line switch.
2.Connect one end of a wire jumper to one of the “F” terminals.
3.Start the burner by closing the line switch. As soon as the flame has been established, connect the other end of the wire jumper to the other “F” terminal.
!WARNING
The control provides no safety protection with this jumper installed. Do NOT leave burner in this condition except for making this check.
If the control still locks out with the jumper installed, the control should be replaced. If the control does not lock out, however, check the operation of the 956 flame detector as follows:
Possible Cause of | Correction |
Trouble |
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Open circuit in Cell | Replace Cell (or Cell Assembly) |
| of 956 Flame Detector. Do not |
| disturb position of bracket or |
| socket assembly. |
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Flame detector | Locate flame detector according |
improperly positioned. | to the burner manufacturer’s |
| specifications. |
TYPE 956 FLAME DETECTORS
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.
OLD STYLE
CELL SOCKET ASSEMBLY
2
NEW STYLE
CELL ASSEMBLY
Rotate Cell Assembly coun- terclockwise to remove it. To replace it insert end through notched opening in
bracket and rotate clock- BRACKET wise. NOTE: If bracket is
ever removed from burner, Cell Assembly will not fit if bracket is reinstalled back- wards.