LAARS FTHF 199 CASCADE Piping and Wiring

Attached is the new cascade piping and wiring diagrams manual (publication 1349C) for LAARS FTHF 199 Floor Boiler. 

Pay particular attention to page 4 of this manual as this shows the position of the internal valves when PIPED cascaded ! I have attached the "cascade manual " here in attachments to this article. 

EXAMPLE Direct from the manual:

Factory default valve position: V1 and V3 open, V2 closed (single boiler). For cascade operation with boiler pump: Close V1 and V3. Open V2.

Additionally the cascade wiring and piping configurations are pages 8-15 of the same manual.

Cascade programming and cascade cable installation are pages 22-32 of the same manual. 

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