State GPG 81 370NEA - Manual (Page 21)

21
heater wiring
All electrical work must be installed in accordance with the current edition of the National electrical Code ANSI/NFPA No. 70 or Canadian electrical
Code CSA C22.1 and must conform to all local code authority having jurisdiction. AN eleCTrICAl GrOuND IS requIreD TO reDuCe rISk OF
eleCTrICAl SHOCk Or POSSIBle eleCTrOCuTION.
If any of the original wire as supplied with the water heater must be replaced, use only type 105°C thermoplastic or equivalent 250
0 C type F must be
used for the flame sensor and igniter leads.
The controls of this water heater are polarity sensitive. Be certain to properly wire the hot and neutral connections.
figure 19.