90
A 24 VAC LWCO is used primarily for gas fired
boilers where a 24 volt control circuit exists within the
boiler. However, a 24 VAC LWCO can only be used
if the boiler manufacturer has provided piping and
wiring connections and instructions to allow for this
application.
APPENDIX A - LOW WATER CUT OFF (LWCO) (continued)
How to Test
Shut off fuel supply. Lower water level until water
level is
BELOW the LWCO. Generate a boiler demand
by turning up thermostat. Boiler should not attempt to
operate. Increase the water level by filling the system.
The boiler should attempt to operate once the water
level is above the LWCO.
Содержание V8H SERIES
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