DeLUX MOISTURE Link G2 DP, Руководство по эксплуатации

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INSTALLATION—INFRARED SCANNER TYPE 48PT2
Where possible, obtain the burner manufacturer’s instructions for mounting the scanner, otherwise
proceed as follows:
A single scanner is used to detect both pilot and main flames. The sight pipe on which the scanner
mounts must be aimed so that the scanner sights a point at the intersection of main and pilot flames.
Proper scanner positioning must assure the following:
1.
Reliable pilot flame signal.
2.
Reliable main flame signal.
3.
A pilot flame too short or in the wrong position to ignite the main flame reliably, must not be
detected.
4.
Scanner must have an unobstructed view of flame being monitored.
5.
Flame being monitored must completely cover the scanner field of view.
6.
To avoid nuisance shutdowns, it is important to avoid sighting hot refractory and to keep scanner
temperature low (below 125° F) (50°C).
When the proper position has been established, drill a hole through the furnace wall and install a 4"
to 8" length of threaded 1/2" black iron pipe on which to mount the 48PT2 scanner.
7.
When satisfactory sighting position has been confirmed by operating tests, the sight tube should
be firmly welded in place.
Wiring
Attach the cable supplied with the scanner to a junction box. Splice the cable wires to a pair of wires
not smaller than #l8. Install the complete run in a separate conduit to the control.
Continuous con-
duit bonding between scanner and the control is mandatory! Scanner may be located up to 100
feet from control. Do not pass scanner wiring through any junction box containing other wires. Do
not run other wires through scanner conduit. Asbestos insulated wire should be avoided.
Keeping the Scanner Cool
The Infrared Scanner (Temperature Limit 125° F) should never get too hot to grasp comfortably in
the hand. Keep the scanner cool by one or more of the following methods.
1.
Use 6" to 8" length of pipe between scanner and hot furnace front plate.
2.
Use insulating tube (P/N 35-69) on the end of the iron pipe.
3.
Force air into sighting tube. Use Fireye Sealing Union (P/N 60-801).
4.
Make sure sighting tube does not extend more than halfway into refractory wall.
CENTER LINE
OF MAIN FLAME
SCANNER
LINE-OF-SIGHT
SCANNER TARGET
ABOVE REFRACTORY
COMBUSTION
CHAMBER
PILOT
BURNER
SCANNER
SCANNER
SIGHTING TUBE
MAIN
BURNER
SCANNER MUST NOT
SIGHT REFRACTORY