Rev. B 4-5-02
P/N 472089
7
Installation (Electrical)
ELECTRICAL, for MiniMax NT Low NOx Heaters
Electrical Rating
60 Hz 120 / 240 Volts AC, single phase
NOTE
The MiniMax NT Low NOx heater is prewired for 240 volt AC connection using the “RED/BROWN” female connector and the
“WHITE” common male connector; see below, Figure 4. 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 5.
NOTE
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. temp. rating.Interconnecting wiring to appliance must conform to the National electrical Code or supersede local
(wiring) codes.
In Canada
: wires must be CSA approved.
WARNING
The heater must be electrically grounded and bonded in accordance with local codes or, in the absence
of local codes, with the latest national electrical codes ANSI/NFPA No. 70.
In Canada
: CSA standard C22.1 Canada Electrical Code Part 1 and/or local codes.
Always use crimp type connectors when connecting two wires.
LINE TERMINAL BLOCK
RED/BROWN
FM CONNECTOR
FOR USE WITH
240 VOLT AC
BLUE
FM CONNECTOR
FOR USE WITH
120 VOLT AC
WHITE
COMMON MALE
CONNECTOR
TERMINAL BLOCK
FOR AC INPUT
120 / 240 VOLT SINGLE
PHASE "See Figure 2"
L
N
GREEN WIRE
WHITE WIRE
BLACK WIRE
GROUND
CONNECTION
NEUTRAL / WHITE 120 VAC
LINE #1 FOR 240 VOLT AC
POSITIVE LINE FOR 120 VOLTS AC
LINE #2 FOR 240 VOLT AC
INTERNAL
FACTORY WIRES
Figure 4.
Figure 5.
