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> Honeywell C645B 1013 gas/air press switch range 3 to 21
Honeywell C645B 1013 gas/air press switch range 3 to 21
HONEYWELL C645B 1013 GAS/AIR PRESS SWITCH RANGE 3 TO 21
C645B 1013 GAS/AIR PRESS SWITCH RANGE 3 TO 21" WATER SPDT SWITCHING MANUAL RESET POSITIONAL INDICATOR
C645A,B models are for use on natural gas, LP gas,or air. C645B1047 includes a scaleplate stop to meetAmerican Gas Association (AGA) requirements forgas-fired boilers with inputs over 2-1/2 million Btuh. C645C,D models are for use on air only. C645E for use with distillate fuel oil. Spring-loaded diaphragm actuates snap-actingMicro Switch. Switch can be wired to turn on alarm. C645A,C and D models break control circuit onpressure fall. C645B models break control circuit on pressure rise. Lockout and manual reset optional in A and C models. Removable, zinc-plated cover protects scaleplate andadjusting screw. Lockout models have external manual reset lever. Pipe tappings allow selection of positive pressure,differential-pressure, or venting connections. Optional switch position indicator available. Models of C645A,B available with cover window forsetpoint visibility. Buna-N fiber-reinforced material for increased controldiaphragm strength. Two seal-off diaphragms for added reliability.FOR MORE INFO GO TO:http:// .pl/pdf/automatyka_domow/palniki_do_kotlow/golden/C645.pdf
