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WHITE-RODGERS
Operator: Save these instructions for future use!
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.
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.
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.
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
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
* Formerly called constant ignition.
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.
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
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.
Printed in U.S.A.
TYPE 668-451
Intermittent Ignition* – Non Recycling
OIL BURNER CONTROL
With Series 956 Flame Detector
(For use with 40VA Cooling Load)
INSTALLATION INSTRUCTIONS
PRECAUTIONS
CAUTION
!
WARNING
!
SPECIFICATIONS
INSTALLATION AND WIRING
DESCRIPTION
PART NO. 37-2228E
Replaces 37-2228D
9625
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Summary of Contents for White Rodgers 668-451
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Page 1: Specifications
TYPE 668-451 Intermittent Ignition* – Non Recycling WHITE-RODGERS OIL BURNER CONTROL With Series 956 Flame Detector (For use with 40VA Cooling Load) INSTALLATION INSTRUCTIONS Operator: Save these instructions for future use! FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE. - Page 2 All wiring should be done in accordance with local and national electrical codes and ordinances. Low Voltage Wiring External Line Voltage Wiring Low Voltage 2-Wire Heating Only W-R TYPE 668-451 H-W TYPE R8184M W-R TYPE 668-451 HEATING-COOLING PRIMARY WIRING TERMINALS...
- Page 3 TESTING (cont’d) TYPE 956 FLAME DETECTORS NOTE OLD STYLE NEW STYLE If indicator of ohmmeter remains steady, read- ings up to 2000 ohms should also be acceptable. Generally, the lower the reading, the better the CELL ASSEMBLY CELL SOCKET application, and less likely the chance of burner ASSEMBLY flame variation causing a safety lock-out.
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Page 4: Spécifications
COMMANDE DE BRÛLEUR À MAZOUT à allumage intermittent et sans remise en route MODÈLE 668-451 WHITE-RODGERS avec détecteur de flamme Série 956 (à utiliser avec une charge de climatisation de 40 VA) INSTRUCTIONS D’INSTALLATION Utilisateur : conservez ces instructions pour vous y référer au besoin ! SI VOUS NE LISEZ PAS ATTENTIVEMENT CES INSTRUCTIONS AVANT D’INSTALLER ET D’UTILISER LA COMMANDE, VOUS RISQUEZ DE CAUSER DES... - Page 5 Câblage externe à la tension basse tension à 2 fils tension du réseau BORNES DE THERMOSTAT BORNES DU MODÈLE CÂBLAGE H-W BORNES DU MODÈLE DE CHAUFFAGE ET 668-451 WR TYPE R8184M COMMANDE 668-451 WR CLIMATISATION W-R PRINCIPALE CAVALEIR INSTALLÉ DÉTECTEUR DÉTECTEUR DÉTECTEUR...
- Page 6 ESSAIS (suite) DÉTECTEURS DE FLAMME MODÈLE 956 NOTE ANCIEN MODÈLE NOUVEAU MODÈLE Si l’indicateur de l’ohmmètre est stable, une lecture allant jusqu’à 2000 ohms devrait être acceptable. Règle générale, cependant, une faible résistance entraîne une meilleure installation et diminue le risque qu’une MODULE DÉTECTEUR variation de la flamme du brûleur engage le blocage de DÉTECTEUR...