SeaLand TankWatch 4 Level Monitoring System - Manual (Page 4)

4
INSTALLATION INSTRuCTIONS
CONTROL PANEL
. Select a mounting location away from direct contact with water and oil. Dry locations in the bathroom,
salon or galley are most desirable.
2. Confirm clearances for the panel behind walls, hull liner or bulkhead.
3. Cut out mounting hole for control panel. (See template for cut-out and hole locations.)
4. Do not mount the control panel until wiring is routed and secured to the terminal block or rear of the
control panel housing.
5. Route wiring following one of the wiring diagrams for black, gray or fresh water applications.
6. Include wiring for any of the optional electrical accessories that may be part of the installation and shown
in separate wiring diagrams.
7. Mount the control panel with the four (4) #6 x 1-inch long black, oval-head screws provided.
8. Determine which tank application the control panel will be monitoring and insert the appropriate color
light and matching lens into the correct location following the chart below.
Waste (Black) Water
Gray Water
Fresh Water
Green
Green
Red
Yellow
Yellow
Amber
Amber
Amber
Yellow
Red
Red
Green
Tank Application
Light & Lens Color Location
Empty Low Mid full
ADjuSTAbLE LEVEL INDICATOR CAP
1. The TankWatch ® 4 level indicator cap is designed for a 3-inch FPT opening. Order part number 230272 if tank
is made of rigid material and is not a SeaLand holding tank.
2. Loosen compression nuts on adjustable probes and install the cap into the tank. Slide the #1 probe down until
the float touches the bottom of the tank. Tighten #1 compression nut and mark the probe at the top of the nut
with a pen or pencil. Do not cut the probe’s tubing at this mark. Loosen the compression nut, slide
the probe up, and carefully cut the #1 probe’s tubing 1-5/8 inch (41.3mm) below the mark without damaging
the switch wires. Pull the wires through the black wire cover and push the probe down into the compression nut
until the black wire cover touches the compression nut.
3. Remove cap from tank and adjust the #2 probe for 1/2 full level for gray and black water tanks or 1/4 full level
for freshwater tanks. Tighten the compression nut and cut the probe’s tubing off 3/8-inch (9.5mm) above the
compression nut without damaging the switch wires. Slip the black wire cover onto the top of the stem.
4. To make the #1 float switch activate the “Empty” light, the float must be positioned with the recessed shoulder,
white band, or the letters “NO” at the bottom. Remove the C-clip from the switch body, flip the float 180 de-
grees, and replace the C-clip. (See Diagram #1.)
5. The #2 float switch can activate the “Mid” light on black and gray water tanks and activate the “Low” light on
freshwater tanks. The recessed shoulder, white band, or the letters “NO” should be facing up for black and
gray water tanks and down for freshwater tanks. (See Diagram #2.)
6. Route 18-gauge stranded copper wire from the indicator panel to the level indicator cap. Use quick-discon-
nect terminals on float switch wires to prevent twisting wires when removing the cap. With cap removed from
the tank, connect the wires according to the wiring diagram and test the floats by moving them up and down.
Disconnect the wires and install the cap with the O-ring into the tank, then reconnect the wires.
7. For caps with vents, route 5/8-inch vent hose from the through-hull fitting to the vent connection on the level
indicator cap. Use stainless steel hose clamps to secure the vent hose connections.