6
5.3 Dimensions
(fig .
1
, page 2)
Ref.
Dimension
A
28 in . / 711 mm
B
10 in . / 254 mm
C
15 .5 in . / 394 mm
5.4 Capacities
Model
Capacity
US gal. / L
Empty Weight
lb. / Kg
Full Weight
lb. / Kg
VHT12
6 .5 / 25
26 .5 / 12
81 / 37
6 Installation
6.1
Determine best location
• The VHT inlet (fig .
2
F, p . 2) must be located no further than 20 ft ./6 .1 m from the outlet of the
toilet, and no more than 3 ft ./0 .9 m above the toilet outlet .
• Consider hose routes and connections, and electrical connections, when choosing VHT location .
• Install horizontally on a flat surface .
• Do not expose VHT to temperatures greater than 120°F/49°C . Do not install near heat sources
such as engine manifolds, water heaters, generators, etc . Provide for free flow of air around VHT .
6.2
Routing sanitation hose
• Protect hose when routing through walls or other barriers (fig .
4
A, p . 2)
• Avoid binding corners or sharp bends in hose (fig .
4
B, p . 2)
• Do not use wire ties to secure hose or pipe runs (fig .
4
C, p . 2)
• Where required, install vertical hose runs as vertical as possible, with no upward angled slopes
from toilet to VHT, for best efficiency (fig .
5
, p . 3)
Bulkhead Penetrations
(fig .
6
, p . 3)
Check each side of a bulkhead to ensure that there will be no cutting into:
• fuel or water tanks
• wiring or pipes
• reinforcement stringers (4) that support the hull
When creating new holes, avoid tabs (1) and stringers (4) that hold bulkheads or partitions in place .
Provide additional reinforcement so that structural integrity is not compromised .
• avoid (2)
• possible (3)
Hose and Heat Sources
The operating temperature of flexible hose prohibits exposure to sources of high or direct heat, such
as light bulbs or engine manifolds . If any part of the hose system must be run close to a heat source,
use rigid pipe instead of hose .
Installation
Dometic Vacuum Holding Tank
