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Removal:
1.
Disconnect all power sources to the unit.
2.
Remove front panel by removing (6) screws at bottom of panel.
3.
Remove AC power section cover by removing (2) screws.
4.
Disconnect the neutral (white) converter feed wire from distribution block and hot (black) wire from AC branch breaker.
If the utility pigtail is used, remove wire nut. Pull wires thru the hole at the bottom left of the AC power section.
5.
Remove the (2) DC power distribution board mounting screws.
6.
Pull the DC board outward and remove the converter+ (blue) and converter- (white) wires from the board. Pull wires
thru the hole at the bottom right of the DC power section.
7.
Remove 'POS+' wire from the old DC board, and reconnect to the terminal labeled 'BATT POS+' on the new DC
board. Remove the 'NEG-' wire from the old DC board, and reconnect to the terminal labeled 'BATT NEG-' on the
new DC board. Transfer branch circuit wiring and fuses in this same fashion.
8.
Remove the (2) screws securing the old converter assembly to power center, and remove converter assembly.
Installation:
9.
Remove new converter core assembly from provided enclosure, by removing (4) screws securing converter to enclosure and
slide converter out. Discard the metal enclosure and screws as they are not used when replacing this model converter.
10.
Slide new converter core into power center. Route black/white/green wire-set into AC power section and black/white
wire-pair into DC section. Secure converter by placing roll-pin thru converter base tab into mounting rail.
11.
In the AC power section, connect new converter neutral (white) wire to neutral distribution block and converter ground
(green) wire to ground bar. Connect hot (black) wire to the existing AC branch breaker. If the utility pigtail was used on
the original installation, two short lengths of 14AWG wire and a wire nut may be used to provide the utility pigtail. DO
NOT install (2) wires into the breaker.
12.
Replace AC power section cover and secure using (2) screws removed in step #3.
13.
In the DC power section, route new converter DC wires behind new DC power distribution board. Connect new converter
power (black) wire to the new DC power distribution board terminal labeled 'CONV POS+'. Connect the negative
(white) wire to the DC board terminal labeled 'CONV NEG-'.
14.
Making sure new DC feed wires remain behind DC board, secure DC board to power center using (2) screws removed in
step #5.
15.
Connect 4-pin header on DC board to 4-pin header on converter assembly using 4-wire harness (included).
16.
Replace power center cover using (6) screws removed in step #2.
17.
Transfer DC Distribution branch circuit information to the new label provided with the retrofit kit, and adhere label over
existing label on the inside of the power center cover. Affix green Replacement Notice label in any unused area of the
power center cover.
Step #10
Replacement instructions for:
Parallax/Magnetek Models: 7155
Steps #5 & 15
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