S Vacuum Pump
with W Motor
Installation Instructions

Dometic Corporation, Sanitation Division
13128 State Rt. 226, P.O. Box 38
Big Prairie, OH 44611-0038 USA
330-496-3211
1-800-321-9886 • Fax: 330-496-3097

Dimensional
Specifications

ElectricalSpecifications® Registered; ™ Trademark of Dometic Corporation© Dometic Corporation

Model

Volts (DC)Avg. Amp Draw

GPH

Fuse/Breaker

Wire Size

Weight

SW12126230

10 amps12-14 ga.

8 lbs.

SW24243230

5 amps

14-16 ga.

8 lbs.

IMPORTANT NOTICE
VacuFlush® sanitation systems must be installed according toDometic’s recommended procedures. Do not attempt installation without first contacting a SeaLand
Product certified dealer or Dometic Corporation.

Before installing the pump, consider the following:
1. Vacuum pump must be mounted horizontally only.
2. The pump can be mounted from 2 to 15 feet from the vacuum
tank. The maximum distance is 15 feet.
3. Mount vacuum pump at same level or lower than vacuum tankoutlet. Do not mount vacuum pump higher than the vacuum tankoutlet.
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 centerpunch, 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 resultin warranty invalidation.
Electrical schematic also shows installation of optional “nightswitch”.

S-Series Vacuum Pump

ItemPart No.

1
23-45385640239
385311225
385311224
385311065
385311066
385310644
385310151
385311226
385310242
385230980
385311844385310076
385311316
385311315

67891011121314

Description
Pump Cover Kit
Pump Top Kit (with screw fasteners)
W Motor Mounting Hardware Kit
W Motor Replacement Kit, 12 VDC
W Motor Replacement Kit, 24 VDC
Eccentric Kit (with fastener screw and bolt)
O-Ring Replacement Kit
Bellows Clamp Kit
Bellows Bushing
Bellows Assembly (includes item 9)
Pump Body
1½” Duckbill Valve Kit (2)Valve Adapter
Valve Nipple

Note:  When reassembling pump, tighten screws (included in item 2) to20±2lbs., or until snug.  Over-tightening will cause holes to strip.

Manufacturer’s Limited Warranty
Dometic warrants, to the original purchaser only, that this vacuum pump, if used for personal, family or household-like purposes, isfree from defects in material and workmanship for a period of one (1) year from the date of purchase.
If this Dometic product is placed in commercial or business use, it will be warranted, to the original purchaser only, to be free ofdefects in material and workmanship for a period of ninety (90) days from the date of purchase.
Dometic reserves the right to replace or repair any part of this product that proves, upon inspection by Dometic, to be defectivein material or workmanship.  All labor and transportation costs or charges incidental to warranty service are to be borne by thepurchaser-user.
EXCLUSIONSIN NO EVENT SHALL Dometic BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, FOR DAMAGES RESULTINGFROM IMPROPER INSTALLATION, OR FOR DAMAGES CAUSED BY NEGLECT, ABUSE, ALTERATION, OR USE OF UNAUTHORIZEDCOMPONENTS. ALL IMPLIED WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR
ANY PARTICULAR PURPOSE, ARE LIMITED TO A PERIOD OF ONE (1) YEAR FROM DATE OF PURCHASE.
IMPLIED WARRANTIESNo person is authorized to change, add to, or create any warranty or obligation other than that set forth herein.
Implied warranties, including those of merchantability and fitness for a particular purpose, are limited to one (1) year from the dateof purchase for products used for personal, family or household-like purposes, and ninety (90) days from the date of purchase for
products placed in commercial or business use.
OTHER RIGHTS
Some states do not allow limitations on the duration of an implied warranty, and some states do not allow exclusions or limitations
regarding incidental or consequential damages; so, the above limitations may not apply to you.  This warranty gives you specific legal
rights, and you may have other rights which vary from state to state.
To obtain warranty service, first contact your local dealer from whom you purchased this product.

SW PUMP INSTALLATION
600344820   03/11