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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
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
3049 and 3098 SERIES
Mercury Flame Sensors
INSTALLATION INSTRUCTIONS
WHITE-RODGERS
These Mercury Flame Sensors are designed to replace flame
sensors used on automatic pilot ignition systems on original
equipment and retrofit applications. Type 3049 Flame Sensors
are equipped with three quick-connect terminals, while Type
3098 are manufactured with three-prong plugs and designed to
plug into the receptacle on the 36C84 series gas valve. Both
types have SPDT switch mechanisms which are activated by the
heat from the pilot flame.
3098 MERCURY
FLAME SENSOR
DESCRIPTION
Printed in U.S.A.
PART NO. 37-3609D
Replaces 37-3609C
9627
PRECAUTIONS
If in doubt about whether your wiring is millivolt, line, or low
voltage, have it inspected by a qualified heating and air condi-
tioning 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.
Do not use on circuits exceeding specified voltage.
Higher voltage will damage control and could cause
shock or fire hazard.
To prevent electrical shock and/or equipment dam-
age, disconnect electric power to system at main fuse
or circuit breaker box until installation is complete.
Shut off main gas to heating system until installation
is complete.
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dan-
gerous operation.
Following installation or replacement, follow appli-
ance manufacturer's recommended installation and/
or service instructions to insure proper operation.
Timing: Contacts close approximately 60 seconds after the pilot
is ignited. Contacts open approximately 40 seconds after the
flame is extinguished.
The sensing bulb is for direct flame immersion in the pilot flame.
The top
3
⁄4” should be surrounded by flame.
Contact Action: SPDT, snap-action
SPECIFICATIONS
ATTENTION!
This product contains mercury. There will not be any exposure to mercury under normal conditions of use. This product may
replace a unit which contains mercury. Do not open mercury cells. If a cell becomes damaged, do not touch any spilled
mercury. Wearing non-absorbent gloves, take up the spilled mercury with sand or other absorbent material and place into a
container which can be sealed. If a cell becomes damaged, the unit should be discarded. Mercury must not be discarded in
household trash. When this unit or the unit it is replacing is to be discarded, place in a suitable container and return to us.
Operator: Save these instructions for future use!
CAUTION
!
WARNING
!