Electrical Wiring - Pentair Pool Products MiniMax NT Series Service Manual

Electrical Wiring

Electrical Rating
•
The MiniMax NT Series heater is prewired for 240 volt AC connection using the "RED/BROWN" female connector and the
"WHITE" common male connector; see below, Figure 15. If you require the heater to be connected to 120 volts AC,
remove the "RED/BROWN" female connector from the "WHITE" common connector; now locate the "BLUE" female
connector and plug it into the "WHITE" common connector. When connecting the home wiring to the "Line Terminal
Block" inside the junction box, follow the polarity as shown below. Connecting to 120 VAC, make sure that you connect
the positive wire to the positive terminal (L), the neutral wire is connected to the neutral terminal (N) and the ground is
connected to the ground terminal (GND); see below, Figure 16.
•
If any of the original wiring supplied with this heater must be replaced, installer must supply (No. 18 AWG, 600V, 105° C.
U.L. approved AWM low energy stranded) copper wire or it's equivalent. Thermal fuse wiring must be replaced with
18 AWG, 600V, 150° C temperature rating. Interconnecting wiring to appliance must conform to the National Electrical
Code or supercede local (wiring) codes.
The installation must conform with local codes or, in the absence of local codes, with the National Fuel
Gas Code, ANSI Z223.1/NFPA 54 and/or CSA B149.1, Natural Gas and Propane Installation Codes. If an
external electrical source is utilized, the heater, when installed, must be electrically grounded and
bonded in accordance with local codes or, in the absence of local codes, in the USA, with the National
Electrical Code, ANSI/NFPA 7; in Canada, with Canadian Electric Code, CSA C22.1-98.
• Always use crimp type connectors when connecting two wires.
WHITE
COMMON MALE
CONNECTOR
BLUE
FM CONNECTOR
FOR USE WITH
120 VOLT AC
INTERNAL
FACTORY WIRES
P/N NTSM03
60 Hz 120 / 240 Volts AC, single phase
LINE TERMINAL BLOCK
GREEN WIRE
WHITE WIRE
BLACK WIRE
NOTE
WARNING
RED/BROWN
FM CONNECTOR
FOR USE WITH
240 VOLT AC
TERMINAL BLOCK
FOR AC INPUT
120 / 240 VOLT SINGLE
PHASE "See Figure Below"
Figure 15.
GROUND
CONNECTION
NEUTRAL / WHITE 120 VAC
LINE #1 FOR 240 VOLT AC
POSITIVE LINE FOR 120 VOLTS AC
LINE #2 FOR 240 VOLT AC
Figure 16.
18
You might need
to open the jacket
(upper panel)
for servicing the
Line Terminal
Block as shown in
Figures 15 & 16.
Rev. B 2-11-04