wireweinie
FOUNDER
Palmer, AK
Some of you Beaver drivers already know that the usual Jasco J12M24SP regulator is no longer made. Instead, the Plane-Power R1224J regulator is to be used. If you order one up, don't forget the 'J' on the part number. VERY important.
So, to educate myself, I began looking for a wiring diagram for this new product. Don't waste your time, there isn't one. Best thing available is the R1224 Installation Instructions, PN 12-1001, Section 'N'. This gives written instructions pertaining to installing this new reg in existing Jasco charging systems. And lets say they are a bit lacking in clarity. For instance C, (2) says to remove the load resistor we have always installed for the Jasco reg, but says NOTHING about keeping/removing the AUX wiring between the reg and alternator. Then, B, (2) says add a jumper from reg 'ENABLE' to reg 'AUX'. But the generic instructions at the beginning of the manual states to always connect reg AUX to alternator AUX any time there is an AUX terminal on the alternator.
After several unanswered emails from Hartzell, I called them this morning. After being told repeatedly to just follow instructions (including 'always install a connection between reg AUX and alternator AUX) an extremely annoyed young lady put me on hold in order to confer with someone (engineer?). When she came back, she instructed me to install the jumper for reg 'ENABLE' to reg 'AUX'. Then instructed me to never connect the alternator 'AUX' as it is not a 'true AUX' (her words, not mine). When I, again, pointed out the problems with the instructions and the need for a specific diagram for this installation, she began to get angry and kept repeating that engineering had been told all this and has not made any changes. So there we are, Lol. Once again Hartzell is just TO busy to bother with little things customers need, such as clear instructions.
So I took the info from Section 'N' and the info from the angry woman and made my own diagram. This is the standard generic diagram from Plane-Power. I have labeled some hard items for clarity and color coded the changes in wires. For this diagram remove anything in red (AUX wire and ground on regulator) and add the green wires (jumper from 'ENABLE' to 'AUX' and the ground wire from reg 'GROUND' to the alternator case ground). If you are installing one of these new regs, I'd highly recommend using all new wires at the reg, as this is a fairly simple install and its easier to install clean wires than screw around with old stuff.
I've attached Section 'N' info and the diagram I modified. Between the two you should have enough info to make this install. As usual, ask any questions, and I'll answer them to the best of my abilities.
Web
So, to educate myself, I began looking for a wiring diagram for this new product. Don't waste your time, there isn't one. Best thing available is the R1224 Installation Instructions, PN 12-1001, Section 'N'. This gives written instructions pertaining to installing this new reg in existing Jasco charging systems. And lets say they are a bit lacking in clarity. For instance C, (2) says to remove the load resistor we have always installed for the Jasco reg, but says NOTHING about keeping/removing the AUX wiring between the reg and alternator. Then, B, (2) says add a jumper from reg 'ENABLE' to reg 'AUX'. But the generic instructions at the beginning of the manual states to always connect reg AUX to alternator AUX any time there is an AUX terminal on the alternator.
After several unanswered emails from Hartzell, I called them this morning. After being told repeatedly to just follow instructions (including 'always install a connection between reg AUX and alternator AUX) an extremely annoyed young lady put me on hold in order to confer with someone (engineer?). When she came back, she instructed me to install the jumper for reg 'ENABLE' to reg 'AUX'. Then instructed me to never connect the alternator 'AUX' as it is not a 'true AUX' (her words, not mine). When I, again, pointed out the problems with the instructions and the need for a specific diagram for this installation, she began to get angry and kept repeating that engineering had been told all this and has not made any changes. So there we are, Lol. Once again Hartzell is just TO busy to bother with little things customers need, such as clear instructions.
So I took the info from Section 'N' and the info from the angry woman and made my own diagram. This is the standard generic diagram from Plane-Power. I have labeled some hard items for clarity and color coded the changes in wires. For this diagram remove anything in red (AUX wire and ground on regulator) and add the green wires (jumper from 'ENABLE' to 'AUX' and the ground wire from reg 'GROUND' to the alternator case ground). If you are installing one of these new regs, I'd highly recommend using all new wires at the reg, as this is a fairly simple install and its easier to install clean wires than screw around with old stuff.
I've attached Section 'N' info and the diagram I modified. Between the two you should have enough info to make this install. As usual, ask any questions, and I'll answer them to the best of my abilities.
Web
