Primary/Secondary Piping, Piping GUIDELINES and Use of Sensor with Indirect Water Heater Installations.

Primary/Secondary Piping, Piping GUIDELINES and Use of Sensor with Indirect Water Heater Installations.

Recent additions to Laars FT I/O Manuals:
Primary /Secondary Piping Guidelines. 
Use of Sensor with Indirect Water Heater Installations. 

IO manual pages 45 and 46 attached. Click on attachments.