Raypak 006720F Unitherm Governor Plug, Polymer, for 206A-406A, 207A-407A, Avia 264A/404A and RP2100 R185A-R405A, R185B-R405B Pool Heaters

This plug closes the Unitherm Governor port in the polymer inlet/outlet header of Raypak gas pool and spa heaters. The Unitherm Governor, the thermostatic valve that regulates water temperature in the heat exchanger, snaps into the plug, and the plug comes out when the governor is serviced. Raypak also calls it the retainer plug; it sits next to the outlet pipe connection.

• 206A, 266A, 336A and 406A heaters with polymer headers, built from October 2004
• RP2100 R185A, R265A, R335A and R405A heaters with polymer headers, built November 1998 to January 2004
• RP2100 R185B, R265B, R335B and R405B heaters with polymer headers, built October 2003 to October 2004
• Not for heaters with ASME bronze or cast-iron headers: Raypak lists a different plug, 013738F, for those
• Used with Unitherm Governor 006719F on 206A to 407A and RP2100 heaters, and 019062F on Avia heaters
• Parts list callouts: 14-HP on 206A to 407A, 13-HP on RP2100, 13-H on Avia

Good to know: Raypak's governor replacement steps for polymer-header heaters: shut off water, gas and electricity and relieve pressure, drain the heat exchanger, remove this plug, unsnap the old governor from it and snap in the new one. When refitting, lubricate the gasket with a non-petroleum grease such as AquaLube. Raypak lists the plug O-ring gasket under its own number (800365 in the 206A to 406A repair guide). Its documents do not say whether this kit includes one.