TW24 - Toilet DOMETIC - Free user manual and instructions

Product Type	Electric Macerator Toilet
Brand	Dometic
Model	TW24
Dimensions (L x H x D)	349 mm x 197 mm x 95 mm
Weight	3.2 kg
Supply Voltage	24 V DC
Power Consumption	3 A (average)
Recommended Fuse / Circuit Breaker	5 A
Maximum Flow Rate	1136 L/h (300 GPH)
Maximum Discharge Height	3.3 m
Maximum Suction Height	3.3 m
Body Materials	Fiberglass Reinforced Polypropylene
Valve Material	EPDM (duckbill)
Bellows Material	Machined PE/PP
Main Functions	Silent operation, self-priming, thermal overload protection, dry running without damage
Maintenance and Cleaning	Regular cleaning of duckbill valves and bellows; use Dometic pipe lubricant
Safety	Open valve before activation; disconnect power before maintenance; do not run dry for extended periods
Available Spare Parts	Cover kit, closure kit, O-ring kit, collets, eccentric, clamps, duckbill valve, body, bellows, motor, gearbox, hardware kit
Warranty (private use)	1 year
Bellows Warranty	5 years
General Information	Designed for horizontal or vertical marine installation; comply with local discharge regulations

Frequently Asked Questions - TW24 DOMETIC

How to install the TW24 toilet?

Install the pump above the black water tank. Secure it with 6 mm mounting hardware. Connect the 38 mm hoses with clamps and lubricant. Connect the 24 V DC power supply as per diagram (fig. 3). Open the valve before first use.

How to drain the black water tank?

Open the discharge valve, then activate the pump by turning on power. Once empty, turn off power and close the valve. Comply with local regulations.

What if the pump does not start?

Check the fuse (5 A) and 24 V DC power supply. Ensure the valve is open. If the motor is hot, wait for it to cool (thermal protection). If problem persists, contact after-sales service.

How to maintain the duckbill valves?

Disassemble the pump body, remove worn valves and replace with new ones (ref. 385310076). Apply some Dometic lubricant during reassembly.

Can I use the toilet without water in the tank?

Yes, the pump can run dry without damage thanks to patented bellows. However, avoid prolonged dry operation to preserve the valves.

What is the maximum discharge height?

The pump can discharge up to 3.3 m in height. Beyond that, performance decreases.

What cables to use for connection?

Use stranded copper wire of gauge 14 AWG or higher. The circuit breaker or fuse must not exceed 20 A.

How to replace the original discharge pump with the DTW?

Use the included 38 mm x 25 mm reducer. Install it less than 1 m from the valve. Connect hoses with lubricant and clamps. Follow steps 4-5 in section 6.1.

What to do in case of odors?

Check that the duckbill valves are in good condition and that the O-rings are properly seated. Clean the pump body with soapy water. Use an appropriate cleaning product.

Is the warranty covering parts?

The 1-year warranty (private use) covers material and manufacturing defects. Bellows are warranted for 5 years. Damage due to incorrect installation or misuse is not covered.

USER MANUAL TW24 DOMETIC

1 Notes on using the manual 3
2 General safety instructions 3
3 Intended use 3-4
4 Components 4-5
5 Specifications 5
6 Installation 5-6
7 Operation. 7
8 Warranty and Product Liability 7-8

1 Notes on using the manual

Caution!

Safety Instruction: Failure to observe this instruction can cause material damage and impair the function of the device.

Note

Supplementary information for operating the device.

fig. 2 A, page 2: This refers to an element in an illustration. In this example, item A in figure 2 on page 2.

2 General safety instructions

The manufacturer will not be held liable for claims for damage resulting from the following:

• Faulty assembly or connection
• Damage to the unit from mechanical influences, misuse or abuse
• Alterations to the unit without express written permission from the manufacturer
• Use for purposes other than those described in the operating manual

3 Intended use

3.1 New installation

DTW Waste Discharge Pump provides quiet, reliable performance when emptying the contents of a holding tank through a seacock and overboard discharge fitting. The DTW discharge pump can be operated with a circuit breaker, generic power switch or with a Domatic DTD01 Tank Discharge Control panel. The pump connects to 38 mm (1.5 in.) ID sanitation hose.

3.2 Replacing macerator discharge pump

When replacing a macerator-type discharge pump with the DTW bellows-type discharge pump, use the 38mm× 25mm hose reducing adapter (supplied with pump). Install the reducing adapter in a 38mm ID discharge line from the DTW pump as close to the 25mm (1.0 in.) ID seacock fitting as possible (no more than 1m (3.3 ft.) from the seacock).

Caution!

Operator must know local regulations for emptying a holding tank.

3.3 Features

Quiet operation.

Runs dry without damage. Patented bellows design won't become damaged if pump runs without water.

Special five-year warranty on thermoplastic pump bellows. See Warranty.

Free-flow design. Duckbill valves provide free flow and reliable seal.

Thermal overload protection. Prevents motor damage from potential overheating.

Self-priming up to 3.3m (10 ft.) of water.

4 Components

Itemsinfig.

1 page 2

Description Item Number (Europe / North America)

1 Pump cover kit 860003853111428 / 385311142

2 Pump top closure kit 860003853112251 / 385311225

3 O-ring kit 860003853101510 / 385310151

4 Bellows bushing 860003853102427 / 385310242

5 Eccentric kit 860003853106444 / 385310644

6 Bellows clamp kit 860003853112269 / 385311226

7 Valve nipple 860006003406697 / 600340669

8 38 mm ID duckbill valve kit 860003853100769 / 385310076

9 Pump body 860006003414899 / 600341489

10 Bellows assembly (incl. 4) 860003852309809 / 385230980

11 12 V DC motor 860003853110651 / 385311065

24 V DC motor 860003853110669 / 385311066

12 38 mm x 25 mm reducing adapter 860003073411137 / 307341113

13 Hardware kit 860003853112244/385311224

Pump assembly, without motor 860003853102500 / 385310250 (not shown)

A Tighten

B Loosen

C Direction of flow

Note

When assembling pump, tighten fasteners to 20 (+ / - 2) in. - lbs. or until snug. Overtightening will cause holes to strip.

5 Specifications

5.1 Materials

Pump body: glass-filled polypropylene Duckbill valves: EPDM

Bellows: engineered PE/PP resin

5.2 Electrical Current Draw

Model Voltage (DC)	Power Draw (amp average)	Fuse/ breaker	Flow (LPH/ GPH)	Wire size	Weight (kg/lbs.)
DTW12 12 6 10 1136 / 300 * 3.2 / 7
DTW24 24 3 5 1136 / 300 * 3.2 / 7

• 14-gauge or larger diameter wire is recommended. Specifications subject to change without notice.

5.3 Discharge / Suction Lifts (m/ft.)

Discharge	0	0.6 / 2	1.2 / 4	1.8 / 6	2.4 / 8	3.3/10
Suction	3.3 / 10	2.4 / 8	1.8 / 6	1.2 / 4	0.6 / 2	0

5.4 Dimensions (fig. 2, page 2)

Ref.	Dimension
A	349 mm / 13.75 in.
B	197 mm / 7.75 in.
C	95 mm / 3.75 in.

Ref.	Dimension
D	171 mm / 6.75 in.
E	127 mm / 5.0 in.
F	48 mm / 1.875 in.

5.5 Approvals

ISO8846; EMC Directive 2004/108/EC

6 Installation

6.1 New installation

Note

Discharge pump is intended to be installed horizontally. The pump can be installed vertically with the discharge side at top or installed on its side, but it may operate at reduced efficiency.

1. Select location for pump installation above holding tank. This prevents potential waste overflow during system maintenance or repair. If available space prohibits installing pump above holding tank, create

a vertical loop in the sanitation hose between the tank outlet and pump inlet that extends above the holding tank.

1. Insert 38mm ID duckbill valve in open end of pump body, and tighten valve nipple into pump body with counter-clockwise motion (fig. 4, page 2).
2. In the four mounting feet locations on pump base (fig. 4 1, page 2), use 6mm (#12) minimum diameter fasteners with 19mm (0.75 in.) maximum diameter washer to fasten pump to surface.
3. Apply small amount of liquid dishwashing detergent or Dometic hose lubricant (not supplied with pump) around ends of pump inlet and discharge fittings and inside ends of 38mm ID sanitation hose that will attach to these fittings.
4. Slip two hose clamps (not supplied) over each end of hose that attaches to pump. Push hose ends onto pump fittings and position the clamps screws so that they are 180^ apart from each other. Tighten hose clamps to pump fittings (fig. 5, page 2).
5. With electrical power off, make proper wiring connections according to wiring diagram (fig. 3, page 2). With pump switch in "off" position, if applicable, turn on electrical power.

Key to discharge pump wiring (fig. 3, page 2)

Ref. Description

A Discharge pump

B V DC ground

C 12 or 24 V DC

D Black

Ref. Description

E Red

F Power switch (on / off)

Notes:

1. Use 14 gauge or larger diameter standard copper wire.
2. Max. discharge pump circuit breaker or fuse rating: 20 amps

6.2 Replacing macerator discharge pump

In discharge hose line from pump to seacock (if applicable) or overboard discharge fitting that measures 25mm (1.0 in.) ID, install the reducing adapter (fig. 12, page 2) as close to the seacock fitting as possible (no more than 1m (3.3 ft.) from the seacock). Use liquid dishwashing detergent or Domatic hose lubricant (not supplied) and properly sized hose clamps to connect the hose ends to the reducing adapter (as described in Section 6.1, step 4 and 5).

Caution - Flooding Hazard!

If the toilet, holding tank or any components are connected to any through-hull fittings, properly installed seacocks must be installed in all piping connected to the through-hull fittings. Seacocks must be easily accessible to all users of the system. All valves must be full-bore valves and of marine (corrosion resistant) quality. Screw-to-close gate valves are not recommended. Failure to do so can result in flooding, which can cause the loss of life and property.

Caution - Flooding Hazard!

Some marine practices and/or standards require the installation of a properly positioned ventilated (vented) loop in the discharge piping to prevent back-siphonage of seawater into the holding tank. It is up to the system installer and boat owner to select appropriate means of preventing backflow into the holding tank.

7 Operation

Caution!

OPEN SEACOCK BEFORE ACTIVATING DISCHARGE PUMP. Operating discharge pump against a closed seacock will result in damage to the pump duckbill valves and require replacement of the valves.

When in waters where overboard discharge of holding tank is allowed, open seacock (if applicable) and turn on electrical power to discharge pump. When discharge is complete, turn off power to the pump.

Caution!

Operator must know local regulations for emptying a holding tank.

Caution!

Do not allow discharge pump to operate for an extended period of time when there is no discharge from holding tank. Damage to pump may result.

Caution!

Discharge pump may start automatically. Turn off electrical power before servicing.

8 Warranty and Product Liability

Europe:

Warranty and Customer Service

Warranty arrangements are in accordance with EC Directive 44/1999/CE and the normal conditions applicable for the country concerned. For warranty or other service, please contact our Domatic/Waeco Service department listed elsewhere in this manual. Any damage due to improper use is not covered by the warranty.

The warranty does not cover any modifications to the product or the use of non-original Dometic parts; the warranty does not apply if the installation and operating instructions are not adhered to and no liability shall be entertained.

Product Liability

Product liability of Dometic Group and its subsidiary companies does not include damages which may arise from: faulty operation; improper alterations or intervention in the equipment; adverse effects from the environment which may impact the equipment itself or the direct vicinity of the equipment or persons in the area.

To obtain warranty service, first contact your local dealer from whom you purchased this product or go to http://www.dometic.com for a dealer near you.

North America and Rest of the World:

Manufacturer's One-Year Limited Warranty

Dometic Corporation, Sanitation Division warrants to the original purchaser only that this product (certain Dometic products, listed below, have a longer warranty period), if used for personal, family or household purposes, is free from defects in material and workmanship for a period of one 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 of defects in material and workmanship for a period of ninety (90) days from the date of purchase.

Domatic reserves the right to replace or repair any part of this product that proves, upon inspection by Domatic, to be defective in material or workmanship. All labor and transportation costs or charges incidental to warranty service are to be borne by the purchaser-user.

EXCLUSIONS

IN NO EVENT SHALL DOMETIC BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, FOR DAMAGES RESULTING FROM IMPROPER INSTALLATION, OR FOR DAMAGES CAUSED BY NEGLECT, ABUSE, ALTERATION OR USE OF UNAUTHORIZED COMPONENTS. ALL IMPLIED WARRANTY, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE, ARE LIMITED TO A PERIOD OF ONE YEAR FROM DATE OF PURCHASE.

IMPLIED WARRANTYIS

No 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 date of purchase for products used for personal, family or household 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 or go to http://www.dometic.com for a dealer near you.

Inhalt

DE

5.3 Ablass-/Ansaughub (m/ft.)

ISO8846; Directive EMC 2004/108/EC

6 Installation

6.1 Nouvelle installation

Remarque

Réf. Afmeting
D	171 mm / 6,75 in.
E	127 mm / 5,0 in.
F	48 mm / 1,875 in.

5.5 Goedkeuringen

Ref.	Dimension
A	349 mm / 13,75 in.
B	197 mm / 7,75 in.
C	95 mm / 3,75 in.

Ref.	Dimension
D	171 mm / 6,75 in.
E	127 mm / 5,0 in.
F	48 mm / 1,875 in.

5.5 Godkannanden

ISO8846; EMC-direktiv 2004/108/EG

6 Installation

6.1 Ny installation

Observera

Ref. Mål		Ref. Mål
A	349 mm / 13,75 in.	D	171 mm / 6,75 in.
B	197 mm / 7,75 in.	E	127 mm / 5,0 in.
C	95 mm / 3,75 in.	F	48 mm / 1,875 in.

5.5 Godkendelser

ISO8846; EMC-direktiv 2004/108/EF

6 Installation

6.1 Ny installation

Bemaerk

Belger: engineered PE/PP

5.2 Strømforbruk

Modell	Spenning (DC)	Strømtrekk (amp gjennomsnitt)	Sikring/vern	Strømning (LPH/GPH)	Kabelstørrelse	Vekt (kg/lbs.)
DTW12	12 6 10	1136 / 300 * 3,2 / 7
DTW24	24 3 5	1136 / 300 * 3,2 / 7

• 14-gauge ell er storre kabeldiamater anbefales. Spesifikasjner kan endres uten varsel.

5.3 Tommpe-/Sugehoyde (m/ft.)

Ref. Mål
A	349 mm / 13,75 in.
B	197 mm / 7,75 in.
C	95 mm / 3,75 in.

Ref. Mål
D	171 mm / 6,75 in.
E	127 mm / 5,0 in.
F	48 mm / 1,875 in.

5.5 Godkjenninger

ISO8846; EMC-direktiv 2004/108/EC

6 Montering

6.1 Ny installationsjon

Merk

Tommepumpen er beregnet på horizontal installationsjon. Pumpen kan installereres vertikalt med tommasiden på toppen eller installerer på sider, men da kan den gå med redusert effekt.

Dometic Australia Pty. Ltd.

1 John Duncan Court

Varsity Lakes QLD 4227

Tel [phone]

Fax [phone]

Mail sales@dometic-waeco.

com.au

FRANCE

Dometic S.N.C.

Dometic Branch Office

Belgium

Zinkstraat 13

B-1500 Halle

Tel [phone]

Fax [phone]

Mail [e-mail]

CHINA

WAECO Impex Ltd.

Shenzhen Futian office (WIE)

1402-1404 1 D/F

Zhou Yue Building

Fu Hua Road,

Futian Central Zone

518048 Shenzhen

Tel [phone]

DENMARK

Dometic Denmark A/S

Nordensvej 15, Taulov

DK-7000 Fredericia

Tel [phone]

Fax [phone]

Mail [e-mail]

FINLAND

Dometic Finland OY

Mestarintie 4

FIN-01730 Vantaa

Tel [phone]

Fax [phone]

Mail [e-mail]

GERMANY

Dometic WAECO

International GmbH

Hollefeldstraße 63

D-48282 Emsdetten

Tel [phone]

Fax [phone]

Mail info@dometic-

waeco.de

HONG KONG

Dometic Group Asia Pacific

Suites 2207-11·22/F·

Tower 1

The Gateway 25 Canton

Road

Tsim Sha Tsui · Kowloon

Tel [phone]

Fax [phone]

Mail [e-mail]

ITALY

Domatic Italy S.p.A.

Via Gazzani, 8/2

Domatic New Zealand Ltd.

26 Cashew Street

NZ-Grenada North

Wellington 6440

Tel [phone]

Fax [phone]

Mail customerservices@

dometic.com.nz

POLAND

Dometic Poland Sp. z o.o.

ul. Puławska 435A

PL-02-801 Warszawa

Tel [phone]

Fax [phone]

Mail [e-mail]

RUSSIA

Dometic RUS LLC

Komsomolskaya square 6-1

RU-107140 Moscow

Tel [phone]

Fax [phone]

Mail [e-mail]

SINGAPORE

Dometic Pte Ltd

18 Boon Lay Way 06-140

Trade Hub 21

Singapore 609966

Tel [phone]

Fax [phone]

Mail [e-mail].

sg

SLOVAKIA

Dometic Slovakia s.r.o

Tehelná 8

SK-98601 Filakovo

Tel [phone]

Fax [phone]

Mail [e-mail]

SOUTH AFRICA

Dometic (Pty) Ltd.

Regional Office

South Africa & Sub-Saharan

Africa

P.O.Box 2562

2008 Bedfordview

Tel [phone]

Fax [phone]

Mail [e-mail]

SWITZER

Dometic Switzerland AG

Riedackerstrasse 7a

CH-8153 Rümlang

Tel [phone]

Fax [phone]

Mail info@

dometic-waeco.ch

UNITED ARAB EMIRATES

Dometic AB

Regional Office Middle East

PO Box 74775

Dubai

Tel [phone]

Tel [phone]

Mail [e-mail]

USA

Dometic Marine Division

2000 N. Andrews Ave. Ext.

Pompano Beach, FL 33069

Tel [phone]

Fax [phone]

Mail marinesales@

dometic.com

SOUTH AFRICA

Dometic (Pty) Ltd.

Regional Office

South Africa & Sub-Saharan

Africa

2008 Bedfordview

Tel [phone]

Fax [phone]

Mail [e-mail]

SPAIN

Dometic Spain S.L.

Avda. Sierra del

Guadarrama, 16

E-28691 Villanueva de la

Canada · Madrid

Tel [phone]

Fax [phone]

Mail [e-mail]

DOMETIC

Dometic Corporation, Sanitation Division

13128 State Rt. 226, P.O. Box 38

Big Prairie, OH 44611 USA

1-800-321-9886·Fax:[phone]

www.Dometic.com