Siemens 184-040

RS BODY KIT,20 SCIM,COPPER

Powers restrictors are available in a variety of orifice sizes and connection types.

External types feature:

• Air filter.
• Threaded connection (Type 1).
• Barbed connection (Types 2 and 3).
• Color coding (Types 2 and 3).
• Airflow direction arrow to minimize installation errors.
• Airflow restrictor capacity molded (Types 2 and 3) or stamped (Type 1) on body.

External restrictors are used:

+ for one\-pipe transmitters, 40 scim (11 ml/sec).
+ when installed tubing lengths exceed maximum recommended value.
and 2\.
+ for one\-pipe room thermostats, 20 scim (5\.5 ml/sec).
+ with check valves to provide airflow time delays.
+ Slow to supply, fast to exhaust.
+ Fast to supply, slow to exhaust.
+ for VAV vortex control. Use 80 scim (22 ml/sec) restrictor in actuator control 
pressure line to prevent cycling.
+ when other air capacities, 10 scim (2\.7 ml/sec), 80 scim (22 ml/sec) or 320 scim 
(87 ml/sec), are required to compensate for tubing size or response time.