Honeywell C7015A manual For splicing in high temperature installations, use

Fig. 8-installing lead sulfide photocell.

CAP

\, MOUNTING

PLUG-IN LEAD SULFIDE CELL (PART NO. 104662D)

PHOTOCELL

METAL CABLESOCKET

SHIELDS LEADWIRES

EPOA FOCUSING LENS I

Fig. O-Mounting C7015A Infrared Flame

Detector (and accessories).

	-J	REFRACTORY	MAIN
COMEUSTlON			/ FLAME
CHAMBER WALL

TEMPORARY

TACK wLO\

p,T FLARED HOLE

-3/4 INCH BLACK IRON SIGHTING PIPE

TO JUNCTION

M304.5

80X OR SUBBASE

WIAmG (F&s. 10 and 11)

.I CAUTION

/\

Disconnect power supply before beginning instal- lation to prevent electrical shock and equipment damage; there may be more than one disconnect involved.

1.All wiring must comply with applicable electrical codes, ordinances, and regulations. Use NRC Class 1 wiring.

,2. Keeptheleadwiresfromtheflamedetectortotheflame safeguard control subbase as short as possible. Capacitance increases with leadwire length, reducing the signal strength.

The maximum permissible leadwire Iength is fifty feet. The ultimate limhingfactor in leadwire length is the frame signal current/voltage. Refer to Table 6, Adjustments and Check- out, page 10.

c701 !?A

INSTALLATION

3.The detector comes with 30,48, or 96 in. [0.76,1.22, or 2.44 m] leadwires inside a flexible metal cable. The leadwires consist of a twisted pair-one brown and one white. The two no. 18 AWG flexible-tinned leadwires are rated for 194’ F [90” C]. The cable protects and electrically shields the leadwires.

4.If the leadwires are not long enough to reach the terminal strip or wiring subbase, make the required splices in a junction box (see IMPORTANT below).

5.If splicing is necessary, use moisture-resistant no. 14 wire suitable for at least 167” F [75” C] if the detector is used withaflamesafeguardprimarycontrol,oratleast 194°F [90” C] if used with a flame safeguard programming control.

6.For splicing in high temperature installations, use

Honeywell specification no. R1298020 or equivalent for the F leadwire. (This wire is rated up to 400” F [204” Cl for continuous duty. It is tested for operation up to 600 volts and 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.

IMPORTANT:

a.Flame detector leadwires must be as short aspos- sible. The maximum leadwire lengthfrom thejlame detector to the flame safeguard control is 50 ft [15.2 m].

6.Extensions to the flame detector leadwires must be

run alone in either rigid orflexible metal conduit. When frame detector leadwires exit a conduit, they must be as short as possible, twisted, and not be included in bundles or channels that contain other wires. Rigid metal conduit is preferred when flame detector leadwires are extended butflexible metal conduit may be used tfit is supported to minimize movement.

C.The jlame detectorjlexible cable shield must be grounded to the flame safeguard control subbase either directly or through the metal cabinetlconduit system that contains the flame safeguard control subbase andjlame detector leadwires.

d.When flame detector leadwires are routed through junction boxes, identifr the junction boxes with the pressure-sensitive labels provided wiih the flame detector cform 96-610).

‘e. UNDERWRITERS LABORATORIES INC. RE-

QUIRES THAT THE JUNCTION BOX BE MARKED TO INDICATE THATNO OTHER WIR- ING CONNECTIONS CAN BE ROUTED THROUGH IT. APPLY CAUTION STICKER (FORM 96410, FURNISHED) TO THE JUNC-

TION BOX.

fMaximize the separation between ignition trans- former high voltage wires and the jlame sensor wires to avoid ignition interference.

9 60-2306-5