Honeywell TRADELINE C554A Manuel utilisateur
X-XX UL
INSTALLATION INSTRUCTIONS
®U.S. Registered Trademark
Copyright © 1996 Honeywell Inc. • All Rights Reserved
C554A
Cadmium Sulfide Flame Detector
APPLICATION
The C554A Cadmium Sulfide Flame Detector (cad cell) is
a photo conductive flame detector (see Fig. 1) used with
oil primary controls such as R4166, R4184, R8182,
R8184, R8185, R8404 and R8991. It consists of a plug-in,
light sensitive cell and a socket with Type E mounting
bracket, factory-installed leadwire and an oil line adapter
bracket. Leadwire length is 60 in. (1520 mm). The detector
is installed inside the air tube of the burner where the cell
can view the flame and is wired to the F-F terminals of the
oil primary control.
The photocell is a ceramic disk coated with cadmium
sulfide and overlaid with a conductive grid. Electrodes
attached to the ceramic disk transmit an electrical signal to
the primary control. In darkness, cadmium sulfide has a
very high resistance to the passage of electrical current. In
visible light, its resistance is very low and current is
allowed to pass. The entire cell is hermetically sealed
(glass to metal) to prevent cell deterioration.
M7854
PLUG-IN-CELL
MOUNTING
BRACKET
SOCKET
LEADWIRE
Fig. 1. C554A Cadmium Sulfide Flame
Detector (cad cell).
INSTALLATION
When Installing this Product…
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a
hazardous condition.
2. Check the ratings given in the instructions and on
the product to make sure the product is suitable for
your application.
3. Installer must be a trained, experienced service
technician.
4. After installation is complete, check out product
operation as provided in these instructions.
CAUTION
Disconnect power supply before beginning
installation to prevent electrical shock or equipment
damage.
Location
The burner manufacturer determines the cad cell location
(see Fig. 2). If an alternate location must be used, make
sure that:
쐃The cell has a clear view of the flame.
쐇Ambient light does not reach the cell.
쐋Ambient temperature at the cell location is below
140°F (60°C).
쐏Movement, shielding, or radiation of metal surfaces
near the cell do not affect cell function.
AIR TUBE
IGNITION
ELECTRODE
IGNITION
TRANSFORMER
CAD CELL
NOZZLE
M7857
Fig. 2. Cad cell location.
Mounting
Direct Replacement
쐃Remove the cell from the socket.
쐇Insert the mounting bracket into the socket slot
(Fig. 3) as far as it will go.
NOTE: Bend the mounting bracket to fit, if
necessary.
60-0164-1
60-0164—12
C554A CADMIUM SULFIDE FLAME DETECTOR
쐋While holding the mounting bracket in the slot,
insert the screwdriver in the other end of the slot
(Fig. 4). Bend the screwdriver first to the left, then
to the right, to crimp the end of the mounting
bracket and hold it in position.
쐏Remove the screwdriver and replace the cell.
쐄Mount the new cell and bracket assembly in the
location of the old assembly.
BRACKET
SLOT
SOCKET
LEADWIRE
M7853
Fig. 3. Insert mounting bracket into socket slot.
Oil Line Mounting
If desired, mount the C554A on the oil line using the oil line
adapter bracket and the mounting bracket supplied.
쐃Remove the cell from the socket.
쐇Insert the mounting bracket into the slot on the
socket (Fig. 3) as far as it will go.
NOTE: Bend the mounting bracket to fit, if
necessary.
쐋While holding the mounting bracket in the slot, insert
the screwdriver in the other end of the slot (Fig. 4).
Bend the screwdriver first to the left, then to the
right, to crimp the end of the mounting bracket and
hold it in position.
쐏Remove the screwdriver and replace the cell.
쐄Slide the mounting bracket into the sleeve on the oil
line adapter bracket. Push firmly to lock the cell and
the bracket assembly in position.
쐂Mount the oil line adapter bracket on the oil line
using the screw and nut provided (Fig. 5).
BRACKET
BRACKET
SOCKET
SOCKET
LEADWIRE
SCREWDRIVER
SCREWDRIVER
SLOT
INSERT SCREWDRIVER AND MOVE IN DIRECTION SHOWN BY
ARROWS TO SECURE BRACKET IN SOCKET
M7855
Fig. 4. Insert screwdriver to secure bracket in socket.
60-0164—1
3
C554A CADMIUM SULFIDE FLAME DETECTOR
OIL LINE
SCREW OIL LINE ADAPTER
BRACKET
TO
NOZZLE
MOUNTING
BRACKET
LEADWIRE SOCKET PLUG-IN
CELL
M7856
Fig. 5. Use oil line adapter bracket to mount
C554A on oil line.
Wiring
Disconnect power supply before beginning wiring to
prevent electrical shock or equipment damage.
All wiring must comply with local electrical codes and
ordinances. See Fig. 6 for a typical C554A hookup to the
oil burner primary control.
T
T
F
F
THERMOSTAT
(24 VOLT)
C554A
CAD CELL
OIL BURNER RELAY
M7858
Fig. 6. Typical hookup for C554A to oil
burner primary control.
CHECKOUT
To check cad cell operation, use the following procedure:
쐃Disconnect cad cell leadwires; then start burner.
Shortly after burner starts, place a temporary jumper
between terminals F-F. Connect an ohmmeter
across cad cell leadwires; resistance should be less
than 1600 ohms.
쐇Stop burner and remove temporary jumper.
쐋With burner off, check dark cell resistance across
cad cell leadwires. Resistance should be greater
than 20,000 ohms.
NOTE: If cell resistances are different than
specified, recheck wiring and location of
cell. If necessary, replace plug-in portion of
cell, Honeywell part no. 130367 Replace-
ment Cad Cell.
쐏Reconnect cad cell leadwires. Check the
Protectorelay(burner sequencing relay) control
according to the instructions packed with the control.
SERVICE AND REPLACEMENT
Under normal operating conditions, the C554A does not
require cleaning. If a badly adjusted burner causes heavy
accumulation of dirt and soot on the cell surface, carefully
wipe the cell surface to restore full view of the oil flame.
If the C554A is damaged, replace the plug-in portion of the
cell. Order Honeywell part no. 130367 Replacement Cad
Cell.
60-0164—14
C554A CADMIUM SULFIDE FLAME DETECTOR
Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
Scarborough, Ontario
M1V 4Z9
60-0164—1 J.S. Rev. 2-96
Automation and Control Solutions
Honeywell Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
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