SailorMan
New Member
Hello All,
I have a question about a residential fire sprinkler system.
I live in a 25-year-old tract of homes with residential fire sprinkler systems. Ten days ago, the pressure sensor switch on my neighbor's fire sprinkler system failed. The rubber diaphragm in the unit leaked badly and by the time he discovered it there was significant damage to his carpet pad ...soaked carpet ...etc.
When these houses were built the city required the builder to have a pressure sensor on the fire sprinkler systems so that if the lawn irrigation system was on when a fire broke out in the house, the pressure sensor would sense the drop in water pressure in the Fire Sprinkler system and turn off the lawn irrigation system. This particular pressure sensor switch is listed for use on compressors, etc. but says nothing about being designed for fire sprinkler systems. I want to replace mine with another one designed for fire sprinkler systems.
It is a one-story house, the pressure sensor is down at the floor level and the sprinklers are (obviously) up in the ceiling.
MY QUESTION: When I disconnect the old pressure sensor switch, the fire sprinkler pipes will drain (at least partially) ...right? Then when I turn the water back on there will be air in the sprinkler pipes ...right? Do I need to bleed out that air somehow ...or is it okay for me to just turn-on the main valve and not worry about the presence of air in the (normally "wet") residential sprinkler pipes? Thanks in advance for the help.
-Patrick
I have a question about a residential fire sprinkler system.
I live in a 25-year-old tract of homes with residential fire sprinkler systems. Ten days ago, the pressure sensor switch on my neighbor's fire sprinkler system failed. The rubber diaphragm in the unit leaked badly and by the time he discovered it there was significant damage to his carpet pad ...soaked carpet ...etc.
When these houses were built the city required the builder to have a pressure sensor on the fire sprinkler systems so that if the lawn irrigation system was on when a fire broke out in the house, the pressure sensor would sense the drop in water pressure in the Fire Sprinkler system and turn off the lawn irrigation system. This particular pressure sensor switch is listed for use on compressors, etc. but says nothing about being designed for fire sprinkler systems. I want to replace mine with another one designed for fire sprinkler systems.
It is a one-story house, the pressure sensor is down at the floor level and the sprinklers are (obviously) up in the ceiling.
MY QUESTION: When I disconnect the old pressure sensor switch, the fire sprinkler pipes will drain (at least partially) ...right? Then when I turn the water back on there will be air in the sprinkler pipes ...right? Do I need to bleed out that air somehow ...or is it okay for me to just turn-on the main valve and not worry about the presence of air in the (normally "wet") residential sprinkler pipes? Thanks in advance for the help.
-Patrick