Gas Valve - proof of closure


  #1  
Old 12-14-02, 12:45 PM
notuboo's Avatar
Member
Thread Starter
Join Date: Sep 2001
Location: Kansas City MO
Posts: 1,699
Upvotes: 0
Received 0 Upvotes on 0 Posts
Gas Valve - proof of closure

Under CSD - 1 regulations, does a proof of closure gas valve on a fuel train require a manual reset?
Currenty have Honeywell 5055A series valves with auto actuators, but this does not meet the requirements under CSD -1.

This is an industrial type setting, not residental.

Anyone here gone through this?
 
  #2  
Old 12-14-02, 01:28 PM
GregH's Avatar
Super Moderator
Join Date: Jan 2001
Location: Manitoba
Posts: 9,500
Received 68 Upvotes on 62 Posts
Smile

notuboo:

?
 
  #3  
Old 12-15-02, 06:55 AM
hvac4u's Avatar
Member
Join Date: Aug 2001
Location: NW atlanta
Posts: 3,049
Upvotes: 0
Received 0 Upvotes on 0 Posts
csd-1 is a spec that calls for cetain testing protocol. there is no such thing as manual reset for a proof of closure switch. if the switch is not made it will remain in purge state. proof of closure falls under "pre ignition interlocks" where program does not advance to pilot until conditions are met. hope this helps.
 
  #4  
Old 12-15-02, 07:48 AM
notuboo's Avatar
Member
Thread Starter
Join Date: Sep 2001
Location: Kansas City MO
Posts: 1,699
Upvotes: 0
Received 0 Upvotes on 0 Posts
The bubble test for closure is a part of CSD-1, agreed.
I don't know if the double seal overtravel specification requires some sort of mechanical means to prove an actual closure had occured.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: