Honeywell C7024E User Manual page 13

8. Put the back section of the mounting flange, rub-
ber washer, and asbestos-neoprene gasket into place on
the faceplate, and securely tighten the three mounting
screws.
NOTE: Make sure the red rubber washer between the
gray asbestos-neoprene gasket and the back section
of the mounting flange does not protrude over the
window aperture or otherwise obscure the detector
line of sight.
9. Clean both sides of the viewing window (or focus-
ing lens) with a clean cloth placed over the eraser end of
a pencil.
10. Reinstall the sensing tube.
11. Replace the detector cover and reinstall the detec-
tor on the sight pipe.
Fig. 14—Replacing quarts viewing window or
focusing lens on C7024E.
FACEPLATE
114372 (20 PSI) OR 122748 (50 PSI)
QUARTZ VIEWING WINDOW (OR 124204
QUARTZ FOCUSING LENS, 20 PSI)
1
RED RUBBER WASHER
(BETWEEN GASKET
AND
FLANGE)
BACK SECTION OF
MOUNTING FLANGE
MOUNTING
120739 GRAY ASBESTOS-NEOPRENE GASKET
SCREWS (3)
1 VIEWING WINDOW CAN BE REPLACED WITH EITHER SIDE TOWARD
THE FLAME.
ONLY 1 GASKET ON EACH SIDE OF A FOCUSING LENS.
2
3 ON A C7024, REMOVE THE 3 MOUNTING SCREWS AND MOVE THE
COIL AND SHUTTER ASSEMBLY OUT OF THE WAY TO PUSH OUT THE
VIEWING WINDOW.
PENCIL
3
WINDOW
114465 RUBBER
APERTURE
MOUNTING
2
GASKETS (3)
M1961A
13
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 the bolts, put them in a safe place.
3. Unscrew the retaining ring (with its rubber O-ring
seal) from the seal-off flange.
4. Tip the flange and let the viewing window fall out
into your hand.
5. Insert either side of the new 122037 Quartz View-
ing Window into the window aperture.
6. Screw the retaining ring (with its O-ring seal) into
the seal-off flange and securely tighten.
7. Clean both sides of the viewing window with a
clean cloth placed over the eraser end of a pencil.
8. Put the seal-off flange back into place on the
faceplate and securely tighten the four hex-head bolts.
9. Reinstall the detector on the sight pipe.
Fig. 15—Replacing quartz viewing window on
C7024F.
HEX-HEAD BOLT (4)
SEAL-OFF FLANGE
WINDOW
APERTURE
122037 QUARTZ
VIEWING WINDOW (100 PSI)
RETAINING RING
SEAL (RUBBER O-RING)
RETAINING RING
M1960
C7024E,F
SERVICE
FACEPLATE
BODY
65-0156—1