Honeywell C7927A User Manual

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When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the 

TRADELINE® Catalog or price sheets 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 Home and Building Control Sales Office (check white pages of your phone directory).
2. Home and Building Control Customer Relations

Honeywell, 1885 Douglas Drive North

Minneapolis, Minnesota 55422-4386

In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.

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.

Ambient Operating Temperature Ratings: 0°F to 215°F 

(-18°C to 102°C), or -40°F to 215°F [-40°C to +102°C), 

depending on model.

Maximum Pressure Rating: 5 psi (34.5 kPa).

Mounting:  Collar with 1/2-14 NPSM internal threads for 

mounting on a 1/2 in. sight pipe.

Wiring Connections:  Two 8 ft (2.44 m), color-coded, 

NEC Class 1 leadwires, rated for 221°F (105°C). 

(C7027A1064 has 24 ft [7.32 m] leadwires.) Rear of 

detector has a clamp type connector for 1/2 in. flexible 
metallic conduit. (Models are available with 1/2 in. 

internally threaded spud connector instead of the 

clamp). C7027A1114 has 44 in. (1.118 m) leadwires and 
22 in. (558 mm) flexible conduit.

Dimensions:  See Fig. 1.

Replacement Part: 129685 Flange Gasket. 

NOTE:  The ultraviolet radiation sensing tube is not field 

replaceable.

Accessory:
 136733 Heat Block, laminated plastic, insulating the 

flame detector from sight pipe temperatures up to 

266°F (130°C), 1/2-14 NPSM external threads on one 
end and 1/2-14 NPSM internal threads on the other end 

(see Fig. 8). Included with C7027A1080.

390427B Bushing, for mounting to 3/8 in. sight pipe. Included 

with C7027A1080.

COLLAR WITH 1/2-14 NPSM 
INTERNAL THREADS

4 (102)

8 FOOT (2.44 METER)
LEADWIRES (2)

M1943E

C7027A1064 HAS 24 FOOT (7.32 METER) LEADWIRES.
C7027A1114 HAS 44 IN. (1.118 M) LEADWIRES WITH 
22 IN. (558 MM) FLEXIBLE CONDUIT.
MODELS AVAILABLE WITH SPUD CONNECTOR (1/2-14 NPSM INTERNAL
THREADS) INSTEAD OF CLAMP TYPE CONNECTOR.

1

2

2

3-1/2 (89)

1-1/16

(27)

1

1/2-14 NPSM
INTERNAL THREADS

2

2 (51)

COLLAR WITH
1–11-1/2 NPSM
INTERNAL
THREADS

1

1

DIN APPROVED C7035A1064 HAS 1-11 BSP.P1 INTERNAL MOUNTING THREADS.

DIN APPROVED C7035A1064 HAS 1/2-14 BSP-F INTERNAL MOUNTING THREADS.

C7035A1056 HAS 12 FOOT (3.66 METER) LEADWIRES.

2

3

INSERTION DEPTH

6 FOOT 
[1.83 METER]
LEADWIRES (2)

3

M1945C

2-5/8 (67)

1-1/2

(38)

31/32

(25)

4-1/8 (105)

1-3/16

(30)