Heli-Preheat Kit – Robinson R44 – Standard (CHT wells not required)
Preheat is applied through electrical resistance heat elements located in each cylinder assembly, on engine crankcase and oil sump/tank, main and tail rotor gearboxes, and hydraulic reservoir, preheat critical components, oil, and attached accessories. Power is routed to the elements through a dedicated wiring assembly with circuit overload protection and power indicator light. System is self-regulating through design. Heated components reach an average state of thermal equilibrium in approximately six hours.
Known Engines: O-540-F1B5 , IO-540-AE1A5,
This preheat kit when installed will supply 633 watts with a 5.5 amp draw at 115 volts.
This preheat kit when installed will supply 633 watts with a 2.8 amp draw at 230 volts.
* Required Bonding sealant sold separately. Quantity 2, PN: TU02788
* AVF0001 form requested for verification of purchase.
Note: For optional additional battery heat an R44 aircraft with a RG24-15 that is mounted on it’s side requires a TBP2643-22-115/42. If it is mounted with it’s bottom down then a TBP2644-28-115/52 is the correct belt. Battery heat elements (belts) are meant to go around the perimeter of the vertical sides of a battery and not under it’s weight.
