How do replace my AC unit with a Maxxair fan?
I got rid of the rotten old AC unit and want to replace it with a Maxxair. Problem is I don't know how to wire it. Do I have to run all new wire to the battery (or wherever it runs to) or can I use ...
Forum Discussion
You're making this too hard on yourself. Plus you do not know the load demand of any 12VDC branch you tie into. You could be setting yourself up for blowing fuses.
The air conditioner black wire is connected to a breaker on the A/C side of your power distribution panel. The breaker should be identified as AC on the panel label. The white wire and bare ground wire are connected to the common and ground bars.
Assure camper is unplugged from power and battery is disconnected. Disconnect the three wires identified above and pull out from the back side of your distribution panel. With masking tape and permanent marker, fold the bare wire back and secure with tape. On the tape identify this end as "moved from air conditioner to DC MaxFlo fan". Move the wires to the DC side of the panel. Now you need to select a fuse if an empty one is not available. I suggest the furnace. You most likely will not run the furnace and this new fan at the same time. Connect the white wire to the furnace connection. Connect the black wire to the large lug identified as "BATT -".
On the fan side fold the bare wire back, wrap with masking tape and write "From AC Wiring". Connect the fan red wire to existing white wire and the fan black wire to the existing black wire and install the fan.
Put it all back together, connect to shore power and/or battery. Your new fan should work. Just remember you might blow the fuse if you run the fan and furnace blower at the same time. Have a spare fuse on hand.
The air conditioner black wire is connected to a breaker on the A/C side of your power distribution panel. The breaker should be identified as AC on the panel label. The white wire and bare ground wire are connected to the common and ground bars.
Assure camper is unplugged from power and battery is disconnected. Disconnect the three wires identified above and pull out from the back side of your distribution panel. With masking tape and permanent marker, fold the bare wire back and secure with tape. On the tape identify this end as "moved from air conditioner to DC MaxFlo fan". Move the wires to the DC side of the panel. Now you need to select a fuse if an empty one is not available. I suggest the furnace. You most likely will not run the furnace and this new fan at the same time. Connect the white wire to the furnace connection. Connect the black wire to the large lug identified as "BATT -".
On the fan side fold the bare wire back, wrap with masking tape and write "From AC Wiring". Connect the fan red wire to existing white wire and the fan black wire to the existing black wire and install the fan.
Put it all back together, connect to shore power and/or battery. Your new fan should work. Just remember you might blow the fuse if you run the fan and furnace blower at the same time. Have a spare fuse on hand.
