Dometic 300 Series, 300, 310 Series, 320 Series, 310 Instruction Manual

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300 Series 310 Series 320 Series

Gravity flush toilet

Instruction manual

Inodoro con descarga por gravedad

Manual de instrucciones

Toilette à évacuation gravitaire

Mode d’emploi

IMPORTANT INFORMATION

IF SERVICE OF THIS TOILET IS EVER REQUIRED, READ THIS BEFORE SERVICING PRODUCT.

DO NOT REMOVE TOILET FROM VEHICLE.

STOP

TOILET DOES NOT NEED TO BE REMOVED FROM VEHICLE FOR BASIC REPAIRS (if necessary)

DO NOT SEPARATE CERAMIC BOWL FROM PLASTIC BASE. DO NOT REMOVE FOOT PEDAL FROM BASE. DISASSEMBLY OF COMPONENTS MAY VOID WARRANTY. SEE MANUAL AND REPLACEMENT KITS FOR SERVICE INFORMATION.

Dometic Corporation

Sanitation Division

Call Customer Service: 1-800-321-9886 (8 a.m. – 5 p.m. ET)

Flush ball seal – Dometic’s

ball seal allows future replacement of worn or damaged ball seals without requiring tools or toilet disassembly. The ball seal can be changed in just a few minutes without removing the toilet from the oor. Detailed replacement instructions are included with replacement ball seal kits.

Snap-in water valve cartridge – Allows easy replacement of worn or damaged water valves. In cold climates, be sure to follow winterizing procedure in owner’s manual to help avoid water valve failure. Refer to replacement instructions in new water valve kit prior to Removal or installation of water valve assembly.

Factory-sealed bowl-to-base assembly – Unlike other

Dometic foot-pedal toilets, the bowl and base of 300, 310, and 320 series toilets should not be separated for any reason.

Each Dometic toilet is factory-tested to assure a watertight seal in toilet bowl before it is shipped.

After installation at the RV or other vehicle factory, the entire toilet system is tested for leaks. This process requires holding the ush ball open with a device which may temporarily distort the ball seal from its original shape and, as a result, cause the seal to leak water into the waste tank during normal use. The ball seal may need to be reconditioned to its original shape.

IF NEW TOILET DOES NOT HOLD WATER IN BOWL…

Please follow the procedures below before attempting to replace the seal.

1. Hold ush ball open by pressing on pedal.

2. Using nger, apply moderate downward pressure around edge of ball seal.

3. Close ush ball.

4. Keeping ush ball closed, pour one quart of hot tap water into toilet bowl.

5. Let water cool completely.

6. Check for leak.

If leak still persists, ush ball seal should be replaced. Follow instructions provided with replacement seal kit.

B C

A B

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.

g.

A : This refers to an element in an illustration. In this

example, item A in gure 1.

2 General safety instructions

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

• Faulty installation or connection

• Damage to the unit from mechanical inuences, misuse or abuse

• Alterations to the unit without express written permission from the manufacturer

• Use for purposes other than those described in this manual

2.1 Warnings

The following statements must be read and understood before installing, servicing and/or operating this product. Modication of this product may result in property damage.

1. Do not use chlorine or caustic chemicals, such as laundry bleach or

drain-opening types, in the system. These products damage the seals in toilets and other plumbing valves.

2. Do not permit foreign objects (paper towels, paper cups, diapers, sanitary

napkins, etc.) to be ushed through the toilet.

3. Mechanical seal toilets are designed to only discharge directly into a holding

tank. Horizontal pipe runs as found in conventional residential or commercial plumbing systems cannot be accommodated.

4. Toilet bowl must be regularly cleaned and winterized according to “Cleaning” and “Winterization and storage” procedures or your warranty coverage may be voided.

3 Intended use

Dometic 300, 310 and 320 series toilets provide lightweight, residential-size toilets for installation directly above a holding tank.

3.1 Beneﬁts

PowerFlush technology. Improved pressurized rim ow creates high-speed vortex of water for full bowl rinsing.

Premium user comfort. Full-size seat and deep bowl result in greater homelike performance.

Easy installation. Two-bolt design ts most existing toilet oor anges – great for new or replacement installations. Just place on oor ange, tighten bolts, connect water, and it’s ready.

Ergonomically enhanced pedal operation. Lower pedal height for easier use; “one-direction” action to add water and ush.

4 Speciﬁcations

4.1 Materials

Materials

Toilet bowl: vitreous ceramic (models 310, 311, 320, 321); polypropylene (models 300, 301)

Toilet seat: polypropylene (models 300, 301, 310,311); enameled wood (models 320, 321)

Flush ball seal: nitrile butyl rubber Toilet base and foot pedal: polypropylene Water valve: polypropylene Vacuum breaker: ABS/polypropylene Floor seal: nitrile rubber, foam

4.2 Minimum installation requirements

Fitting 1/2 in. NPT

Water

Supply

Discharge Floor ange 3 in./76 mm ID, 1/4-7/16 in. (6 -11 mm) thick

* Water sup ply that exc eeds 5.0 gpm / 18.9 lpm m ay requi re a ow res tricto r at toilet inlet. Specications subject to change without notice.

Flow rate

Static pressure 30-100 PSI / 206.8-689.5 kPa

3.0-5.0* gpm / 11.4-18.9 lpm recommended

2.0 gpm / 9.5 lpm minimum

4.3 Rough-in dimensions (g.

Dimensions/Description

Ref.

Model 300 Model 301

A 8.5 in. / 216 mm 8.75 in. / 222 mm 10 in. / 254 mm 11 in. / 279 mm

B 11 in. / 279 mm

C 11 in. / 279 mm

D Floor ange

E Left wall

F Back wall

G Right wall

)

Models 310, 311

Models 320, 321

5 Components (g.

)

Ref. Description

A Toilet seat

B Flush ball seal

C Toilet bowl

D Toilet base

E Flush pedal

F Floor ange seal

6 Installation

Note Be sure foot pedal, when pressed, touches same at surface on which toilet is installed.

Note Be sure to follow recommended installation requirements in section

4.2 of this manual.

6.1 Tools required

• pliers or adjustable wrench

• 7/16-in. / 11 mm wrench

Ref. Description

G Vacuum breaker

H Vacuum breaker

I Water valve

J Floor mounting

Refer to complete parts list (available online at www.dometic.com) for additional information.

cover (310, 311 only)

hardware kit

6.2 Toilet installation

1. To replace an older toilet, turn off water supply to toilet. Remove and

drain water supply line. Remove toilet hold-down bolts/screws. Remove toilet from oor. Remove and discard old oor ange seal and hold-down bolts. Verify center of oor ange is at least the recommended rough-in distance from back wall (g. dimensions chart). Make sure top surface of oor ange is clean and free of any debris or sealant.

2. If installing a new oor ange, make certain that toilet mounting holes are located at the correct angle (g. oor with a minimum of four screws (8 are preferred). Insert two supplied T-bolts into slots in oor ange (g. 3 ).

3. Verify that oor ange seal is installed on base of toilet (g. Carefully set toilet over oor ange. Align holes in toilet base with T-bolts as toilet is lowered onto oor ange. Toilet must be aligned so that outlet of base ts inside of oor ange outlet hole.

Note Entire toilet base does not rest completely on oor yet. Floor seal must be compressed in following steps.

4. Install oor mounting nuts and washers onto T-bolts. Carefully torque nuts to 30-40 inch-pounds. DO NOT OVERTIGHTEN. Alternate between sides when tightening to prevent distortion of base. When tight, base should be securely attached and at against oor. Attach bolt covers onto nuts.

(Fig.

5. If toilet is being installed in a shower stall, apply a bead of caulk around base of toilet to prevent water seepage under base.

6. Connect water supply line and torque connection to 30-40 inch-pounds. DO NOT OVERTIGHTEN. (Fig.

7. Turn on water supply line. Flush toilet several times and check for leaks.

A) for your toilet model (see Rough-in

D). Floor ange must be secured to

A).

7 Operation

7.1 Add water to bowl

To add water to the toilet, press the ush pedal part way down. Water ows into the bowl while ush ball remains closed. If the ush ball moves, let up on the pedal slightly. Adding water to an empty bowl helps prevent holding tank odors from entering the living space.

Adding water is recommended prior to ushing solids and toilet paper.

7.2 Flush toilet

To ush, press pedal down until it contacts the oor. Release pedal after complete ush.

• When ushing liquids, press the pedal for 1-2 seconds.

• When ushing solids, press pedal until contents are rinsed from bowl. Flushing longer than necessary will cause holding tank to ll too quickly.

A small amount of water will collect in the bowl after a ush to create an airtight seal.

Note Residual water trickle in ceramic bowls: Due to integrated rim of

models 310, 311, 320 and 321 toilets, water may continue to trickle into toilet bowl for up to 20 minutes after ushing. If water trickle continues after 30 minutes, replace water valve.

Flush directions are located under toilet seat lid.

Note To ensure holding tank odors do not enter the living space, make sure 1 inch (24 mm) of water remains in the toilet bowl. Depending on variations in plumbing systems and user operation, the “add water” function may be required to achieve the 1-inch water depth.

8 Cleaning

8.1 Routine toilet cleaning

For routine cleaning, use Dometic® Toilet Bowl Cleaner. If this cleaner cannot be found in your area, contact Dometic for your nearest dealer. If the cleaner is not available, use most any non-abrasive bathroom and toilet bowl cleaner. Please follow label instructions.

For stubborn stains on model 300 and 301 toilet bowls, carefully use rubbing alcohol to remove them.

8.2 Flush ball/seal cleaning

After a period of time, mineral deposits from hard water may build up on the ush ball or seal, resulting in a slow water leak. To prevent this, periodically clean the ush ball and seal.

1. Remove minor debris from the ush ball and seal by slowly pressing and releasing the ush pedal several times. This will loosen and rinse debris from the surfaces. Repeat several times for stubborn buildup.

2. If step 1 does not fully clean the ball and seal, clean with a soft bristle brush and SeaLand toilet bowl cleaner. Fully clean the top of the ush ball and under the seal where it contacts the ush ball.

3. After cleaning, lightly press down around seal to assure it will properly seal against ush ball.

4. If this does not correct a leaking seal, it may require replacement.

9 Winterization and storage

When a Dometic toilet is stored for long periods of time or may be exposed to temperatures below freezing, the toilet must be winterized or stored according to one of the following procedures.

Caution This toilet is not intended for use when exposed to temperatures below freezing.

Caution Never use automotive-type antifreeze (ethylene glycol) in freshwater systems.

Note Use nontoxic antifreeze (propylene glycol) designated for potable water systems. (See vehicle owner’s manual.)

Storage options

Non-toxic Antifreeze Winterization (recommended method)

1. Pour antifreeze in potable water tank according to instructions from antifreeze manufacturer.

2. Flush toilet several times until antifreeze has owed completely through toilet. For toilets with hand sprayer, the hand sprayer must be turned on to assure antifreeze is cycled through the sprayer.

Drain Water from Toilet

1. Turn off water supply to toilet.

2. Remove water supply line from water valve.

3. Place a small container under water valve inlet to catch draining water.

4. Press ush pedal and allow water to completely drain from water valve and vacuum breaker.

5. Leave water line disconnected until threat of freezing temperature is past.

Note Never leave vehicle or premises unoccupied for extended periods of time with municipal water supply or onboard water pump turned on when there is a possibility of freezing temperature.

IMPORTANT: Toilet warranty does not cover freeze-damaged water valve

The Dometic 300, 310 and 320 series toilet warranty expressly excludes coverage for any damages to the toilet or vehicle that may occur as a result of improper winterization of the toilet. An indicator of improper winterization is

freeze damage to the water valve which results in leaks.

Dometic water valves exceed maximum water pressure as dened by North American plumbing code agencies. However, if trapped water freezes in piping that supplies water to the toilet, it expands and creates extremely high pressure that can damage the valve (see photo). To avoid this, winterize the toilet as described in this manual. If freeze-damage occurs as a result of improper winterization, replace the water valve with a 300/310/320 toilet water valve kit, part number 385311641. IF WATER VALVE IS RETURNED FOR WARRANTY

CLAIM, DOMETIC RESERVES THE RIGHT TO DENY CLAIM IF PROBLEM IS CAUSED BY FREEZE DAMAGE.

Fig.

A – White stress marks indicate freeze damage

B – Water valve damage due to severe exposure to below-freezing temperature

10 Troubleshooting

Problem Possible Cause Service Instruction

1. Water will not stay in bowl.

a. Ball seal is not properly

positioned.

b. Flush ball or seal is dirty. c. Worn or damaged ush

ball seal.

a. Press pedal to hold ush

ball open, then lightly press down around edge of ball seal with nger to conform

to ush ball. b. Clean ush ball and seal. c. Replace seal.

2. Odor emits from toilet when ush ball is open.

3. Odor emits from toilet when ush ball is closed.

4. Flush ball will not close completely.

5. Water ow into toilet will not stop.

6. Water does not enter toilet bowl properly.

a. Plugged holding tank

vent.

b. Odor from holding tank

contents.

a. No water in bowl. b. Damaged ush ball seal. c. Damaged oor ange

seal.

a. Too much friction

between ush ball and seal.

a. Worn or defective water

valve.

a. Insufcient water ow

rate at toilet inlet.

b. Screen at water valve

inlet is clogged.

c. Water valve is worn or

damaged.

d. Plugged rim wash holes

or rim jet (300 series only) in toilet.

a. Clear obstruction from

vent.

b. Add deodorant to holding

tank.

a. Add water to bowl. b. Replace seal. c. Replace oor seal.

a. Clean and lubricate ush

ball and seal with silicone spray or furniture polish.

a. Replace water valve.

a. Make sure ow rate at toilet

inlet is 3.0-5.0 gpm / 11.4-

18.9 lpm (recommended rate).

b. Clean screen.

c. Replace water valve.

d. Clean rim wash holes.

Problem Possible Cause Service Instruction

7. Hand sprayer leaks (hand sprayer is not provided with all models).

a. Hand sprayer is defective. a. Replace hand sprayer.

8. Water is leaking from water valve.

9. Water is leaking from toilet base.

10. Water is leaking from rear of toilet.

a. Water line connection

is loose or not seated properly.

b. Water valve is damaged

or defective.

a. Toilet is not secure to

oor.

b. Worn or defective oor

ange seal.

a. Loose vacuum breaker.

b. Damaged or defective

vacuum breaker.

c. Cracked or defective

toilet bowl.

a. Insure that threads are not

cross-threaded and tighten connection.

b. Replace water valve.

a. Tighten toilet mounting

bolts.

b. Replace oor ange seal.

a. Make sure vacuum breaker

stem is pushed fully into sealing grommet in back of bowl (310 and 320 series), or securely connected to rim jet (300 series).

b. Replace vacuum breaker.

c. Replace toilet.

Limited Warranty

THE SELLER NAMED BELOW MAKES THE FOLLOWING WARRANTY WITH RESPECT TO DOMETIC GRAVITY-FLUSH MODELS

300, 301, 310, 311, 320, AND 321 ONLY

1. TWO-YEAR LIMITED WARRANTY

1A. This Limited Warranty will be in effect for two years from the date of purchase. 1B. This Limited Warranty is made only to the First Purchaser (hereinafter called the “Original Purchaser”) who acquired the product for Original Purchaser’s personal, family, or house-

hold-type use. The Original Purchaser should retain a copy of the sales receipt or invoice as evidence of the date of purchase because proof of purchase is required to obtain warranty service.

1C. If this 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 90 days from the date of purchase.

1D. This warranty covers all parts of the Dometic toilet which is warranted to be free of defects in material and workmanship under normal use. This

warranty does not cover conditions unrelated to the material and workmanship of the product. Such unrelated conditions include, but are not limited to, (a) faulty installation and any damage resulting from such; (b) the need for normal maintenance and any damage resulting from failure to provide such maintenance; (c) failure to follow Seller’s instructions for use of this product, including failure which may result from not following winterization procedures; (d) any accident that results in damage to this product; (e) scratching or staining of any ceramic or plastic component; and (f) acts of God, or misuse of any part of this product and any alteration by anyone other than the Seller.

1E. For Original Purchaser (ONLY) to obtain the benets of this Warranty during the 2-year period (for personal use) or 90-day period (for commercial use),

the following shall apply: (a) Original Purchaser shall contact the local dealer from whom the product was purchased; or contact the Seller Customer Service Department at

1-800-321-9886 (8 a.m.-5 p.m. ET, USA) and provide the local dealer or Seller Customer Service Department with sales receipt or invoice, product model and serial number from product. The product model identication label is located on the toilet base under the foot pedal and water valve (see illustration).

(b) If product, while still under warranty, is returned to local dealer where purchased, the local dealer will repair, replace or refund the product per this Warranty and as authorized by

the Seller. Seller will provide necessary replacement parts or product free of charge to Original Purchaser, including freight on such replacement parts or product, and Seller will pay direct labor charges for such repair or replacement.

(c) Under no circumstances will Seller pay or be liable for any of Original Purchaser’s or dealer’s travel charges or other expenses associated with bringing the product or recreation

vehicle to the dealer for repair, for providing dealer with access to the product or vehicle, or for downtime of the product or vehicle.

(d) Original Purchaser may be required to return defective product or parts when requested by Seller;

in such event, Seller will pay related freight costs.

2. THE SELLER DOES NOT AUTHORIZE ANY PERSON OR COMPANY TO CREATE OR EXTEND ANY WARRANTY OBLIGATIONS OR LIABILITY ON ITS BEHALF.

3. REPAIR OR REPLACEMENT OF, OR REFUND FOR, DEFECTIVE PRODUCT, AT SELLER’S OPTION, SHALL BE THE ORIGINAL PURCHASER’S SOLE REMEDY UNDER THIS LIMITED WARRANTY. IN NO EVENT SHALL SELLER BE LIABLE FOR PURCHASER’S INCIDENTAL OR CONSEQUENTIAL DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.

4. SELLER DISCLAIMS ALL OTHER WARRANTIES WITH RESPECT TO THE PRODUCT, WHETHER EXPRESS OR IMPLIED, AND SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. SOME STATES DO NOT ALLOW LIMITATIONS ON IMPLIED WARRANTIES OR HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.

5. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER

SELLER: Dometic Corporation - Sanitation Division 13128 SR 226 Big Prairie, Ohio 44611 USA 330-439-5550

RIGHTS WHICH VARY FROM STATE TO STATE.

Locati on of pro duct ID label

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