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INSTALLATION INSTRUCTIONS
IMPORTANT:
Completely read and thoroughly understand these instructions before proceeding to install and
wire the control. This manual is a generic guide and may not be specific to the panel provided. Refer to the part
number for specific options chosen on drawing TD-198500 sheet 1.
Mount control box vertically on wall or other solid structure. The maximum distance between the control box and
the location of the electrodes is determined by the sensitivity of the 16M control(s). This information is supplied
on Form 167 (Bulletin P/N 100212-1).
WIRING INSTRUCTIONS
NOTE:
All wiring shall be in accordance with the National Electrical Code.
The minimum allowable wire size is 14 AWG and of type THHN or MTW.
The ground terminal provided inside the enclosure, on the back panel, must be connected to electrical ground.
Caution:
Bonding between conduits must be made.
All conduit entrances and any external metal parts that may become energized must be grounded via the ground
terminal provided on the back panel.
Circles with diagonals on wiring diagram represent terminals provided for external connections.
Connections to these terminals should be made using UL approved crimp type spade lugs. The maximum
allowable connections per terminal are 2.
Terminal pairs 3 – 10 are isolated load contacts and must be wired in series with its load and that series branch
circuit connected across a power source compatible with the load.
Connect terminal pair 1 – 2 to AC supply line of electrical characteristics indicated on data label and drawing.
Fuse protection has not been provided. Do not exceed electrical characteristics indicated on data label and
drawing. Maximum fuse rating is not to exceed 3 AMPS.
Connect terminals pair 3 – 4 into the motor starter circuit of pump #1. This circuit not to exceed 3AMP @ 120
VAC.
Connect terminals pair 5 – 6 into the motor starter circuit of pump #2. This circuit not to exceed 3AMP @ 120
VAC.
Connect terminals pair 7 – 8 into the circuit of the remote HIGH level alarm device. This circuit not to exceed
3AMP @ 120 VAC.
Connect terminals pair 9 – 10 into the circuit of the remote LOW level alarm device. This circuit not to exceed
3AMP @ 120 VAC.
Electrode Wiring
Wiring must be provided to the electrodes as shown on the drawing provided. The electrode wiring should be
thermoplastic insulated and be installed in a separate dry metallic conduit. Terminal 20 must be grounded to the
vessel if metallic. If the electrode fitting used has a metallic body and is supported directly upon a metallic vessel,
the ground connection is facilitated by securing that end of the ground conductor beneath the head of one of the
screws which fasten the terminal housing to the body of the fitting.
When the vessel is non-metallic, terminal 20
must be connected to an additional electrode of length equal to or longer than, the longest electrode.
Float Switch Wiring
Wiring must be provided to the float switches as shown on the drawing provided. The float switches wiring should
be thermoplastic insulated and be installed in a separate dry metallic conduit.
Connect terminals 11 and 12 to the normally open HIGH level float switch.
INSTRUCTION P/N 198461
