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WHITE-RODGERS DIVISION
EMERSON ELECTRIC CO.
9797 REAVIS RD., ST. LOUIS, MO. 63123
(314) 577-1300, FAX (314) 577-1517
9999 HWY. 48, MARKHAM, ONT. L3P 3J3
(905) 475-4653, FAX (905) 475-4625
R
Printed in U.S.A.
PART NO. 37-2228E
Replaces 37-2228D
9625
TYPE 668-451
Intermittent Ignition* – Non Recycling
OIL BURNER CONTROL
With Series 956 Flame Detector
(For use with 40VA Cooling Load)
INSTALLATION INSTRUCTIONS
DESCRIPTION
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL
INJURY AND/OR PROPERTY DAMAGE.
This Type 668 Oil Burner Control provides safe operation
of oil burners on heating plants where ignition during the
entire burner cycle is desired. It is capable of powering
external cooling loads up to 40 VA. A Sub-Base or other
means must be used to prevent heating and cooling
systems from being energized at the same time. The Type
668 is used with the Type 956 Flame Detector.
* Formerly called constant ignition.
PRECAUTIONS
SPECIFICATIONS
INSTALLATION AND WIRING
Operator: Save these instructions for future use!
WHITE-RODGERS
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 compo-
nents could cause the control to malfunction.
To prevent electrical shock and/or equipment
damage, disconnect electric power to system, at
main fuse or circuit breaker box, until installation
is complete.
Do not use on circuits exceeding specified volt-
ages. Higher voltages will damage control and
could cause shock or fire hazard.
CAUTION
!
WARNING
!
ELECTRICAL DATA
Input voltage: 120 VAC, 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: 24 Volts AC, 60Hz.
Room Thermostat:
Set adjustable heat anticipator at 0.4 Amps.
Low Voltage Rating (Terminals R&C):
Maximum cooling load of 40VA @ 24v. 60 Hz.
Continuous duty. W & C cycled through thermostat.
Safety Timing: 45 seconds
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
control, then follow his recommendations. If no special
wiring instructions are given, then follow the electrical
connections shown.
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.