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65-0156—1

2

C7024E,F

SPECIFICATIONS • ORDERING INFORMATION

Ordering Information

When purchasing replacement and modernization products from your 7800 SERIES distributor, refer to the TRADELINE

®

Catalog for complete ordering number.

If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:

1. Your local Honeywell Home and Building Control Sales Office (check white pages of your phone directory).
2. Home and Building Control Customer Satisfaction

Honeywell Inc., 1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386 (612) 951-1000

In Canada—Honeywell Limited/Honeywell Limitée, 740 Ellesmere Road, Scarborough, Ontario M1P 2V9 International
Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany,
Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.

Specifications

IMPORTANT:  The specifications in this publication

do not include normal manufacturing tolerances.
Therefore, this unit may not exactly match the
listed specifications. This product is tested and
calibrated under closely controlled conditions, and
minor differences in performance can be expected
if these conditions are changed.

MODELS:

C7024E Self-Checking Solid State Purple Peeper Ul-

traviolet Flame Detector: For use with R7824C
Dynamic Self-Check Amplifiers.

C7024F Self-Checking Solid State Purple Peeper

Ultraviolet Flame Detector: Same as C7024E ex-
cept with explosion-proof housing for use in haz-
ardous locations.

ELECTRICAL RATINGS:

Voltage: 24 Vdc.
Power Consumption: 7.8 watts maximum.

AMBIENT TEMPERATURE RATINGS (outside the

case): C7024E,F: -20

°

 F to +175

°

 F [-29

°

 C to +79

°

 C].

STORAGE TEMPERATURE RATINGS:

-60

°

 F to +175

°

 F [-51

°

 C to +79

°

 C].

HOUSING:

C7024E: Violet, cast aluminum cover; mounting flange

with heat block and faceplate are separate to pro-
vide heat insulation and sealoff. Meets NEMA 4
enclosure requirements (indoor, outdoor protec-
tion; rain-tight, dust-tight, hose-directed water).
Optional water jacket available for the C7024E.

C7024F: Explosion-proof, two-piece, violet, cast

aluminum.

PRESSURE RATING OF QUARTZ VIEWING
WINDOW:

C7024E: 20 psi [138 pKa]. Focusing lens (20 psi [138 kPa]

rating) or high pressure viewing window (50 psi
[345 kPa] rating) available; see Accessories.

C7024F: 100 psi [690 pKa].

MOUNTING: C7024E: Mounting flange with 3/4 inch

NPT internal threads for attachment to sight pipe.

WIRING CONNECTIONS: NEC Class 1 color-coded lead-

wires, 8 feet [2.4 meters] long.

Number of Leadwires: Six.
Threaded Leadwire Opening in Faceplate:

C7024E: 1/2-14 NPSM or 7/8-20 UNSM inter-

nal threads for attaching conduit.

C7024F: 1/2-14 NPT internal threads for at-

taching pipe.

DIMENSIONS: See Figs. 1 and 2.
WEIGHT:

C7024E: Approximately 4.25 pounds [1.9 kg].
C7024F: Approximately 14.5 pounds [6.6 kg].

SERVICEABILITY C7024E and F: Field replaceable

viewing windows and ultraviolet sensing tube, self-
checking coil and shutter assembly.

APPROVALS:

Underwriters Laboratories Inc. Component Recog-

nized:
C7024E: File no. MP268.
C7024F: For use in hazardous locations; Class 1,

Groups C and D; Class 2, Groups E, F and G;
File no. E34649.

Canadian Standards Association Certified: File no.

LR95329-3.

REPLACEMENT PARTS:

C7024E,F:

113228 Ultraviolet Sensing Tube.
191286 Ultraviolet Sensing Tube for -40

°

 F [-40

°

 C]

operation.

C7024E:

114372 Quartz Viewing Window; rated for 20 psi

[138 kPa].

114465 Gasket, silicone rubber; for installing view-

ing window (three required).

120739 Gasket, asbestos-neoprene; heat insula-

tion and sealoff for mounting flange.

C7024F: 122037 Quartz Viewing Window, rated for

100 psi [690 pKa].

C7024E,F: 190971G  Coil and Shutter Assembly, 24

Vdc.

ACCESSORIES:

Содержание C7024E

Страница 1: ...ed lead wires allow rapid electrical installation Two flame detectors can be wired in parallel to reducenuisanceshutdownsindifficultflamesight ing applications A swivel mount is available to facilitate flame sighting Models are available with a 40 F 40 C rating Incorporates UV sensor tube checking feature used with Honeywell dynamic self check R7824C Flame Signal Amplifiers Oscillating shutter int...

Страница 2: ...TINGS 60 F to 175 F 51 C to 79 C HOUSING C7024E Violet cast aluminum cover mounting flange with heat block and faceplate are separate to pro vide heat insulation and sealoff Meets NEMA 4 enclosure requirements indoor outdoor protec tion rain tight dust tight hose directed water Optional water jacket available for the C7024E C7024F Explosion proof two piece violet cast aluminum PRESSURE RATING OF Q...

Страница 3: ...k 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 flame safe guard service technician 4 After installation is complete check out product operation as provided in these instructions CAUTION Ultraviolet sensing tubes have a life expectancy of 40 000 hours of continuous use within ambi ent tem...

Страница 4: ... If the C7024 is subject to excessive vibration a spe cial antivibration mount part number 123539 can be used for the C7024E If you use this mount install it before positioning and sighting the detector CLEARANCE Make sure there is enough room to easily mount the sight pipe detector and all the required fittings and to remove the detector for troubleshooting and service RADIATION SOURCES Other tha...

Страница 5: ...ay resulting in burner shutdown The problem can be eliminated by diluting the con taminants A strong flow of air through the sight pipe will clear a viewing path through the attenuating mate rial Refer to Sight Pipe Ventilation section It is also desirable to sight the detector at an area containing fewer masking agents such as near the burner nozzle or near the entrance of the combustion air Incr...

Страница 6: ...7024 1 CLOSE NIPPLE 3 4 in FOR A C7024E 1 in FOR A C7024F TEMPORARY TACK WELD COMBUSTION CHAMBER WALL REDUCER BLACK IRON SIGHT PIPE 1 1 2 TO 3 in 38 TO 76 mm DIA REFRACTORY FLARED HOLE 1 IF VENTILATION OF THE SIGHTING PIPE IS REQUIRED ADD PIPE TEE PERFORATED NIPPLE OR OTHER SUITABLE DEVICE FOR VENTILATION M1958A SIGHT PIPE VENTILATION It may be necessary to ventilate the sight pipe to cool the det...

Страница 7: ... see Fig 8 1 The mounting flange is in two pieces Loosen but do not remove the three screws holding the flange together 2 Slightly rotate the detector so the slots in the back section of the mounting flange clear the screws in the front section then separate the two sections 3 Screw the front section of the mounting flange onto the sight pipe reducer or other fitting 4 Fit the slots in the back se...

Страница 8: ... for operation up to 600 volts and for breakdown up to 7500 volts For the other leadwire use moisture resistant no 14 wire selected for a temperature rating above the maximum operating temperature 7 Refer to Fig 10 for wiring connections Fig 10 Wiring diagram for C7024E F Detec tors with RM7824 Flame Safeguard controls with shutter drive circuitry IMPORTANT Do not run the flame detector wiring in ...

Страница 9: ...rner flame alone and both together unless monitoring only the pilot flame when using an intermittent pilot or only the main burner flame when using direct spark ignition With the detector in its final position all re quired flame signals must be steady or stable and as specified in Table 1 If you cannot obtain the proper signal refer to the Troubleshooting section PILOT TURNDOWN TEST If the detect...

Страница 10: ...u encounter other problems in the system refer to the Trouble shooting section in the instructions for the appropriate flame safeguard control NOTE For instructions for replacing the viewing win dow sensing tube and coil and shutter assembly see the Service section TROUBLESHOOTING PROCEDURES First perform the Preliminary Inspection then follow the applicable procedures for either a low reading or ...

Страница 11: ...roubleshooting section and use a clean cloth placed over the eraser end of a pencil You do not have to remove the window or lens to clean it If it is broken or damaged or if it is coated with a substance that cannot be cleaned replace it see Fig 14 2 Keep the flame detection system adjusted for the smoothest most reliable operation recommended by the burner manufacturer 3 Replace the sensing tube ...

Страница 12: ...section NOTE The C7024F Cover has a small hole that is keyed to a pin on the body flange REPLACING THE QUARTZ VIEWING WIN DOW Or Focusing Lens IMPORTANT A quartz window or lens must be used Ordinary glass absorbs or filters out ultraviolet radiation C7024E see Fig 14 1 Open the master switch remove the detector from the sight pipe and remove the cover from the detector 2 Remove the ultraviolet sen...

Страница 13: ...1 2 RED RUBBER WASHER BETWEEN GASKET AND FLANGE 114465 RUBBER MOUNTING GASKETS 3 WINDOW APERTURE BACK SECTION OF MOUNTING FLANGE 120739 GRAY ASBESTOS NEOPRENE GASKET MOUNTING SCREWS 3 2 3 M1961A C7024F See Fig 15 1 Open the master switch and remove the detector from the sight pipe 2 Unscrew the four hex head bolts holding the seal off flange to the faceplate and remove the flange To avoid losing t...

Страница 14: ...65 0156 1 14 ...

Страница 15: ...15 65 0156 1 ...

Страница 16: ...rol Home and Building Control Helping You Control Your World Honeywell Inc Honeywell Limited Honeywell Limitée 1985 Douglas Drive North 740 Ellesmere Road Golden Valley MN 55422 Scarborough Ontario M1P 2V9 Printed in U S A QUALITY IS KEY ...

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