Honeywell C7015A manual Adjustments and Checkout, Installation Adustments and Checkout, Cmi5A

C7015A

INSTALLATION • ADUSTMENTS AND CHECKOUT

Fig. 1 O-Typical wiring of C7015A Infrared Flame Detector to nearby wiring subbase or terminal strip.

cmi5A

FLEXIBLE CABLE (MECHANICALLY

SUPPORT TO MINIMIZE MOVEMENT)

GROUNDlNG	RING SUBBASE
	OR TERh
STRAP,

n1 1 BROWN WIRE AND 1 WHITE WIRE FROM THE C7015A. CONNECT TO FLAME SAFEGUARD CONTROL’S SUBBASE, COLOR NOT IMPORTANT, KEEP WIRES AS SHORT AS POSSIBLE. AND TWIST THEM.

AFLEXIBLE CABLE MUST BE RUN To FLAME SAFEGUARD CONTROL ’S

SUBBASE AND GROUNDED WHERE THE EXPOSED WIRES BEGIN.

Fig. 1 l-Typical wiring of C7015A Infrared Flame Detector to distant wiring subbase or terminal strip.

FLEXIBLE CABLE (MECHANICALLY SUPPORT TO MINIMIZE MOVEh

BX CABLE, SHIELDED

ICABLE, OR TWISTED

PAIR; MUST BE ALONE

IN CONDUIT.

I FLAME SAFEGUARD

CONTROLS SUBBASE

II

JUNCTION BOX A

1 BROWN WIRE AND 1 WHITE WIRE FROM THE C7015A; CONNECT lNSlDE JUNCTlON Box; COLOR NOT IMPORTANT; LEADWIRES FROM JUNCTION BOX NEED NOT BE PHASED OR POLARIZED.

APPLY CAUTION STICKER, FORM NO. 96-610 SUPPLIED WITH Ci’O15A. TO THIS JUNCTION BOX. BOX MUST BE GROUNDED.

USE RIGID CONDUIT. OR SUPPORT FLEXIBLE CONDUIT TO

.MINIMIZE MOVEMENT.

CONDUIT MUST BE RUN TO FLAME SAFEGUARD CONTROL’S SUBBASE AND GROUNDED THERE. KEEP EXPOSED WIRES AS SHORT AS POSSIBLE AND TWIST THEM.

IA3046

Adjustments and Checkout

IMPORTANT: Before welding the sight pipe in its final location, complete the AdjustmentsandCheckout Tests below and any tests required by the burner man@ac- turer.

ADJUST DETECTOR SIGHTING POSITION

For initial burner lightoff, consult the burner manufacturer instructions or flame safeguatd control instructions.

With the flame detector installed and the burner running, adjust the sighting position of the detector for optimum flame signal.

Most existing Honeywell flame safeguard controls have a flamecurrentjackonthecontrolplug-inflameamplifier.The flame signal (current) can be measured with a volt-ohmmeter such as the Honeywell W 136A with a zero to 25 microampdc scale. To measure the flame current (signal), a Cable Connec- tor (part number 1%146, included with W136A) must be used with the meter. With the W136A (or equivalent) posi- tioned to the zero to 25 microamp scale, make connections from the meter probes to the two ends of the cable connector plug, red to ted, black to black The plug end of the connector pluginsertsdirectlyintotheamplifierflamejack(seeFig. 12).

If the flame safeguard control is using a R7248B AMRLI- CHECP amplifier, the red flame-indicating lamp on the

amplifEr should blink at the same rate that the flame is flickering (may be as high as 20 times a second). If the lamp is ON (bright) continuously or not blinking while measuring the flame current, replace the amplifier.

Refer to Table 6 for the minimum acceptable flame currents for the amplifiers and associated flame safeguard controls.

The R7748B AMRLI-CHECKTM ; R7848A and R7848B (AMPLI-CHECKTM)amplifiersusedwiththeBCS7700and 7800 SERIES flame safeguard controls respectively, have a dc voltage flame signal output.

To measure flame signal voltages when using a R7748B amplifier, a 20,000 ohm/voltmeter with a zero to 5 or 10 Vdc scale is suggested To measure the flame signal voltage when using R7848A,B amplifiers, a volt-ohm meter with a mini- mum sensitivity of one megohm/volt is recommended. The flame signal (voltage) measurements are made as shown in Figs. 13 and 14. The positive (red) meter lead is connected to the positive (+) control jack and the negative (black) meter lead to the negative (-) control jack (Corn jack with 7800 SERIES controls). If the BCS 7700 and 7800 SERIES controls have the Keyboard Display Module, a zero to five Vdc voltage is displayed on the module. Refer to Table 6 for minimum and maximum flame voltages for the amplifiers