Dometic SW12 Installation Instructions

S Vacuum Pump with
W Motor
Installation Instructions
Dimensional
Specifications
Electrical
Specifications
Before installing the pump, remember the following:
1. Vacuum pump can be installed horizontally (either right-side
up or upside down
A
2. The pump can be mounted from 2 to 15 feet from the vacuum
tank. The maximum distance is 15 feet.
3. Install vacuum pump at same level or lower than vacuum tank
outlet. Do not install pump higher than the vacuum tank outlet.
4. The maximum head pressure on the discharge of the pump must
not exceed 6 feet.
Note: Two-toilet systems require a vacuum pump and vacuum tank for each toilet.
It provides the benefit of a totally redundant operating toilet in case of failure in one
toilet. Two pumps greatly reduce hose runs and system complexity.
Installing the pump:
1. Make sure the vacuum pump is properly located before proceeding. Place the vacuum pump on the surface
to be mounted. Position as needed. Using a center punch, mark the four slotted holes in the pump feet.
Remove pump.
2. Using a 3/16-inch drill bit, drill the four mounting holes. Use a #14 wood screw to secure pump.
3. The flow direction is indicated on the pump body.
Stainless steel wall mounting bracket is available as optional accessory – P/N 341505.
Wiring the pump:
Wire the S-series pump as shown in the wiring diagram. Use multistranded copper wire. Proper fuse or circuit
breaker size is extremely important for pump and wire protection (see chart above). Overfusing this pump will
result in warranty invalidation.
Model Volts (DC)
SW12 12
SW24 24
), or vertically with inlet at bottom
B
Avg. Amp Draw GPH
6 230
3 230
.
C
Electrical schematic also shows installation of optional "night
switch".
Dometic Corporation, Sanitation Division
13128 State Rt. 226, P.O. Box 38
Big Prairie, OH 44611 USA
1-800-321-9886 • Fax: 330-496-3097
Fuse/Breaker Wire Size
10 amps 12-14 ga.
5 amps 14-16 ga.
B
A
www.Dometic.com
Weight
8 lbs.
8 lbs.
C