DOMETIC 8120 Master Flush Toilets Instructions

: September 17, 2024
: Dometic

Table of Contents

8120 Master Flush Toilets
Specifications:
Product Usage Instructions:
Installation:
Operation:
Maintenance:
- FAQ:
Q: What are the available flush options on the Dometic
Q: What is the recommended tank capacity for the toilets?

8120 Master Flush Toilets

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Specifications:

Model: 8120, 8140
Description: Low-Profile, All Ceramic
Macerator Toilet / Standard-Height, All Ceramic Macerator
Toilet
Discharge: 1.5 in. / 38 mm ID
Voltage: 12 V DC / 24 V DC
System Requirements: Electrical Circuit
Breaker Wiring
Water Supply Fitting Flow Rate: 2.0 gpm / 7.6
lpm at toilet, minimum
Discharge Fitting Horizontal Run: 1.5 in. NPT,
98 ft. / 30 m maximum
Discharge Fitting Vertical Run: 9.8 ft. / 3 m
maximum
Tank Capacity: 30 gal. / 114 liters
recommended
Min Height-Seat Down: 15 in. / 381 mm (Model
8120), 18.375 in. / 467 mm (Model 8140)
Max Height-Seat Up: 28.5 in. / 724 mm (Model
8120), 31.875 in. / 810 mm (Model 8140)
Width: 14.75 in. / 375 mm
Depth-Wall to Front of Bowl: 18.375 in. / 467
mm
Depth-Wall to Front of Base: 14 in. / 356 mm
(Model 8120), 15 in. / 381 mm (Model 8140)
Depth-Wall to Center of Base: N/A

Product Usage Instructions:

Installation:

1. Ensure proper electrical circuit breaker wiring according to
system requirements.

2. Connect the water supply fitting ensuring a flow rate of at
least 2.0 gpm at the toilet.

3. Install the discharge fitting with a horizontal run not
exceeding 98 ft. and a vertical run not exceeding 9.8 ft.

4. Secure the toilet at the desired location with adequate space
for operation.

Operation:

1. Use the Dometic Flush Control Panel to control the flushing
functions.

2. Select between normal flush, add water, and dry bowl flush
functions as needed.

3. Enjoy the powerful maceration and efficient waste disposal
capabilities of the toilet.

Maintenance:

1. Regularly clean the toilet bowl and seat with appropriate
cleaning agents.

2. Check for any leaks or unusual sounds during operation and
address them promptly.

3. Follow manufacturer recommendations for any additional
maintenance tasks.

FAQ:

Q: What are the available flush options on the Dometic

MasterFlush 8100 Series toilets?

A: The toilets come with normal flush and dry bowl flush
functions for versatile operation.

Q: What is the recommended tank capacity for the toilets?

A: The recommended tank capacity is 30 gallons or 114 liters for
optimal performance.

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HYGIENE & SANITATION

DOMETIC 8100 SERIES MASTERFLUSH TOILETS

MasterFlush 8100 Series toilets offer great value and outstanding performance. These powerful macerator toilets provided a luxurious fixture in a small footprint. Electrical installation
is simplified with no external control module necessary. Two flush settings assist with water conservation leading to fewer pump-outs. The wood seat, plus two available toilet heights
provide extra comfort. All models included adaptable discharge fittings

POWERFUL
MACERATES WASTE

VERSATILITY
SMALL FOOTPRINT

TWO FLUSH OPTIONS
NORMAL AND DRY BOWL

12/24 V

SPACE-SAVING DESIGN

The Dometic MasterFlush 8100 Series toilets provide a luxurious all-ceramic fixture when space is limited. The angled back and small footprint of these units fits against hulls in small spaces to help make the most out of any confined situation with elegance and user comfort.

8120

8140

Benefits of the 8100 Series Toilet
· Powerful macerating flush · Solid wood seat · Normal and Dry Bowl flush options conserve water · Available in white and bone colors · Through the floor or through the wall discharge fittings

28-inch [711mm] Overall height seat lid up

14 3/4-inch [375mm]

15-inch [381mm]

18 3/8-inch [467mm] 13 3/4-inch [349mm] Seat height

14 3/4-inch [375mm] 32-inch [813mm] Overall height seat lid up
18 3/8-inch [467mm]

18 3/8-inch [467mm] 17-inch [432mm] Seat height

14 -inch [356mm] Back wall to front of base

15 -inch [381mm] Back wall to front of base

Dometic Flush Control Panel
Dometic 8100 series MasterFlush panel includes “normal flush” switch on left side, “add water” and “dry bowl flush” functions on right side.

3.25-inch [83mm]

Model

8120

8140

Description

Low-Profile, All Ceramic Macerator Toilet

Standard-Height, All ceramic Macerator Toilet

Discharge

1.5 in./38 mm ID

Voltage

12 V DC/24 V DC

System Requirements
Electrical Circuit Breaker Wiring
Water Supply Fitting Flow Rate
Discharge Fitting Horizontal Run Vertical Run Tank Capacity
Min Height-Seat Down (in/mm) 3

15/381

20 amps/12 VDC | 15 amps/24 V DC 12 ga. (up to 20 ft./6.1 m from breaker)
0.5 in. NPT 2.0 gpm/7.6 lpm at toilet, minimum

1.5 in. NPT 98 ft./30 m maximum 9.8 ft./3 m maximum 30 gal./114 liters recommended

18.375/467

Max. Height-Seat Up (in/mm) 3

28.5/724

31.875/810

Width (in/mm)3

14.75/375

Depth-Wall to Front of Bowl(in/mm) 3

18.375/467

Depth-Wall to Front of Base (in/mm) 3

14/356

15/381

Depth-Wall to Center of Base (in/mm) 3

N/A

Horizontal and vertical run distances are not cumulative. Check for adequate discharge flow if installation nears one of these limits. Specifications subject to change without notice.

N/A

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