General  Description
The  Tyco®  Model  RC-1  Retard Chamber  is  required  in  installations that will be subject  to pressure varia-tions, as are generally associated with public water supplies, in order to help prevent false alarms. The RC-1 is spe-cifcally intended for use as a separate-ly ordered item for the Model AV-1-300 Alarm  Check  Valve  (TFP910).  It  can, however, also be used as a separately ordered  item  for  changing  out  older style Retard Chambers used with  the Central Model F/G, Gem Model A, or Star Model E/F Alarm Check Valves.
The Model  RC-1  Retarding  Chamber is a re-designation for the Gem Model F211  for  use  with  Gem  Model  F20/F200/F2001  Alarm  Check  Valves,  as well  as  the  Star Model  S310  for  use with  Star  Model  S30/S300/S3001 Alarm Check Valves.
Technical  Data
Approvals
UL  and  ULC  Listed,  as  well  as  FM Approved  for  use with  the Model AV-1-300 Alarm Check Valves.
UL  and  ULC  Listed,  as  well  as  FM, LPCB, and VdS Approved for use with the following Alarm Check Valves:
Model AV-1-175 
Gem Model F20/F200/F2001 
Gem Model A 
Star Model S30/S300/S3001
Working Water Pressure: 300 psi (20,7 bar)