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CATALOG NO. 3400.55B Effective: 09-22-09 Replaces: 02-24-09 P/N 241344 Rev. 3 Rev. 3 reflects the following: Changes to: Fig. 3 on page 6, Fig. 10 on page 11, Pool Heater instructions and Fig. 17 on page 17, Fig. 19 on page 21, Table M on page 25, Mode 1 and Mode 4 instructions on page 33, Fig. 35 and Fig. 36 on page 33, Modes 6-8 instructions on page 34, Tables P-R on pages 34-35, Auto Limit -Auto Reset instructions on page 39, wiring diagrams on pages 42-43. Additions: PVC Venting Option on pa