E) Multiple Unit Parallel Wiring; F) Ac Input Wiring - NewMar PT-14W Installation And Operation Manual

DC Output Fuse Table
Model Fuse Value
PT‐14W ATC 20 amp
PT‐25W ATC 30 amp
PT‐24‐8W ATC 15 amp
PT‐24‐13W ATC 20 amp
E) Multiple Unit Parallel Wiring
If increased power or system redundancy is required, a second charger may be wired in parallel. The
unit is diode protected so it will not be damaged by feedback from the second unit and current limiting
will prevent overloading in the case of a failure of one of the units.
Observe the following guidelines when wiring a parallel unit.
1) Use only another identical charger model. Do not use a different charger
model, either from NEWMAR or from another manufacturer.
2) Wire length and gauge and wire lug size must be identical for each charger to
ensure proper load sharing.
3) Wire gauge for each charger must be the same used as if a single charger were
wired into the system by itself.
F) AC Input Wiring
For the convenience of the installer an AC power cord has been factory installed. It is a three‐conductor
stranded type, 16 AWG. The cord is terminated with a plug suitable for standard USA outlets and uses
standard USA color coding of conductors.
AC input is "universal". Models PT‐14W and PT‐24‐8W operate in a range of 85‐264 VAC, 47‐63 Hz. No
switch setting is required for either 115V AC or 230V AC applications. Models PT‐25W and PT‐24‐13W
operate in a range of 90‐132 or 180‐264V AC, 47‐63 Hz. Input voltage selection for these models is made
via a slide switch on the right hand side of the charger. It is factory set for 115V. For 230V AC
applications use a ball point pen or similar tool to slide the switch up into the 230V position. For
reference, the switch is down for 115V and up for 230V.
AC input for the charger must be routed through fuse or circuit breaker on an AC distribution panel with
proper safety/earth chassis ground in accordance with all applicable local codes and ordinances. Caution
(230V applications only): If AC input is derived from a source consisting of two HOT leads (phase‐to‐
phase 230V AC input voltage) an external fuse or circuit breaker must be used to protect the unfused
(formerly NEUTRAL, now HOT) lead.
Color coding of the installed AC cord is as follows:
Black.................................AC Hot (fused)
White.................................AC Neutral
Green................................AC Ground (safety, earth)
If the factory‐installed cord must be replaced use a cord of equal or larger AWG rating with stranded
(not solid) conductors. Remove the AC input terminal cover by removing the three Phillips head screws