SeaLand TankMaster 4 - Manual (Page 2)

2
TAbLE Of CONTENTS
WARNING: When using this device, always exercise basic safety precautions, including the
following:
•
Read all instructions before installation or use.
• Never connect this device to any electrical circuit with other than 2 or 24 volt Direct Current
or exceed the amperage draw listed.
• Never install the indicator panel in an atmosphere with potentially flammable or explosive vapors.
• This product is not to be installed in shower facilities.
• Control panel can be wired directly to the TankWatch ® 4 panel.
• Includes keyed selector switch and “discharge pump on” light. An optional “check seacock”
light is available to use in conjunction with a seacock interlock switch.
• Prevents accidental overboard discharge in restricted waters when control switch is turned
to “off” position.
• Two different modes, automatic or manual, for holding tank discharge pump control.
• Discharges sewage directly overboard in unrestricted waters while in the “automatic” mode.
• The “manual” mode provides direct discharge pump control regardless of the level of the
holding tank.
• The “automatic” mode will automatically maintain holding tank at empty level and eliminate
stagnating sewage trapped in interconnecting hoses by wye valve operation.
• In the “automatic” mode, the full-level float will turn on the discharge pump if the mid-level float
fails.
• Simplifies plumbing by eliminating wye valves, seacocks, and vented loops for multiple toilet
installations.
• For use with a T-series discharge pump, TankWatch ® 4 level monitor system, and optional
seacock interlock system.
• 2 and 24 VDC models available.
The TankMaster Automatic Discharge Pump Controller is designed to provide two different modes
to empty a wastewater or graywater holding tank: either automatic or manual. In the automatic
mode, the high-level switch (mid-float of a TankWatch ® 4 system) will activate the discharge pump.
The pump will then run until the low-level switch (low float of a TankWatch ® 4 system) is
deactivated. The manual mode turns on the discharge pump regardless of the liquid level in the
holding tank. Some fine-tuning of the float switch locations may be necessary in order to obtain
proper operation of the TankMaster controller.
NOTE: Keep in mind that once you enter a “no discharge zone,” your TankMaster must be
switched to the “off” position and the key removed to prevent illegally discharging your holding tank.
The United States Coast Guard will allow a key-operated switch as a means to secure the over-
board discharge pump system instead of securing it with a padlock or wire tie.
SAfETy fEATURES
PRODUCT fEATURES
Safety Features . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Product Features . . . . . . . . . . . . . . . . . . . . . . . . . 2
System Operation Diagram . . . . . . . . . . . . . . . . . 3
Models and Accessories. . . . . . . . . . . . . . . . . . . . 4
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation Instructions . . . . . . . . . . . . . . . . . . . . 5
Wiring Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . 6
Dimensional Specifications. . . . . . . . . . . . . . . . . . 7
Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Troubleshooting Guide . . . . . . . . . . . . . . . . . 8 - 0
Control Panel Mounting Template . . . . . . . . . . . 
Manufacturer’s One-Year Limited Warranty . . . 2