SeaLand DTD02A Auto Discharge Pump Control - Manual (Page 8)

8
Dometic Tank Discharge Control Intended use
Because attempting to pump-out a holding tank can be harmful if the seacock to the overboard
discharge fitting is closed, the DTD02A panel also includes a yellow warning light that indicates
when the seacock is closed. The DTD02A panel connects to two Dometic seacock switches
(available separately):
• 385310675 - seacock interlock switch and relay for Conbraco 7014701
• 385310705 - seacock interlock switch and relay for Groco BV1500
Caution!
Operator must know local regulations for emptying a holding tank.
Note
The US Coast Guard allows a key-operated switch as a means to secure an overboard
discharge pump system. Turn off DTD system and remove key from switch when boating in
“No Discharge” waters.
3.3 Features
Secure discharge pump control. Key-operated switch provides convenient means to secure
discharge pump operation without use of padlocks or other mechanical fasteners .
Helps prevent pump burn-out. Activated panel light indicates when discharge pump is operating.
Reminds operator to shut off pump when tank discharge is complete .
Prevents potential damage (DTD02A system). Activating a discharge pump while seacock is
closed can cause pressure build-up in discharge hose which may damage pump or boat and result
in costly repairs .The seacock interlock switch (available separately) greatly reduces this possibility .
Automatic discharge pump operation with DTM04 tank monitor system. Discharge pump begins
when “mid” level float is activated, and turns off when tank level drops below “low/empty” level
probe (fig .
5 , page 3) .
Simplifies plumbing system. Eliminates wye valves and vented loops of multi-toilet systems .
4 Specifications
4.1 Materials
Panel frame and mounting frame: ABS Circuit assembly housing: High-density polyethylene
Panel surface: Polycarbonate resin
4.2 Electrical current draw (panel only)
System Voltage Pump Off (amp) Pump On (amp)
12 V DC 0 0 .16
24 V DC 0 0 .095
Specifications subject to change without notice. Maximum relay rating for 12 or 24 V DC discharge pump: 20 amps.
Float Switch Rating: 20 watts with resistive load (when used with DTM04 system).