SeaLand VHT Vacuum Holding Tank - Manual (Page 5)

5
SeaLand Vacuum Holding Tank Intended use
Vacuum relief valve (not available on all VHT models). Provides additional protection against
potential tank collapse if subjected to excessive vacuum pressure during pump-out .
Long-lasting reliability. Tank is constructed of high-strength polyethylene . Pump motor can operate
dry without burning up .
Energy efficient. Draws only 3 amps in 12 V DC system.
4 Components
4.1 Vacuum holding tank (fig . 2 , page 2)
Ref Description
A Vacuum pump
B Vent fitting
C Vacuum switch
D
Vacuum relief valve
(not available on on all models)
Ref Description
E Shutdown relay
F Inlet fitting (from toilet)
G Discharge fitting
4.2 VacuFlush toilet system (fig . 9 , page 3)
Ref Description
A VacuFlush toilet
B Vacuum holding tank
C Status panel
D Vent filter
Ref Description
E Discharge pump
F Dockside discharge fitting
G Thru-hull vent fitting
H Overboard discharge fitting
5 Specifications
5.1 Materials
Holding tank: polyethylene; 0 .25 in ./6 .3 mm nominal wall thickness
Plumbing fittings: polyvinyl chloride
Pump body: Glass-filled polypropylene
5.2 Electrical
Model Voltage (DC)
Power Draw
(amp average)
Fuse/
breaker
VHT12 12 3 5
* 14-gauge or larger diameter wire is recommended .
Specifications subject to change without notice .