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Model 37255-Series

QUIET - FLUSH 
ELECTRIC TOILET CONVERSION

FEATURES

• Very quiet flush cycle - like a household toilet  

• Converts all Jabsco, Par manual toilets and early

electric toilets to the new Quiet-Flush System

• Also converts Groco HC, HE & HF; Raritan PH,

Cricket, Compact & Crown; Sealand (Mansfield) 750
to 752 series and all Wilcox Crittenden toilets

• Single button flush actuator - with dual function water

level control switch

• Supplied with Par-Max 4 self-priming pump to provide

sea water or lake water to rinse the toilet bowl

• High capacity waste macerator and bowl discharge

pump

SPECIFICATIONS

PORTS

PAR-MAX Pump and Toilet
Inlet 3/4" Hose Barb
Outlet 1" Hose Barb

MOTOR 

Pump and Toilet meet U.S.C.G.

& SWITCH

Regulation 183.410 and ISO 8846
Marine for Ignition Protection.
EMC Models Available

WATER 

1-2 Quarts (Litres)/Flush

CONSUMPTION

VARIATIONS

MODEL NO.

DESCRIPTION

37255-0012

Toilet Conversion, 12 Volt DC

37255-0092*

Toilet Conversion, 12 Volt EMC

37255-0024

Toilet Conversion, 24 Volt DC

37255-0094*

Toilet Conversion, 24 Volt EMC

*This model is          Marked and complies with EN50081-1 for suppression of 
electro-magnetic interference.

OPERATION

The Quiet-Flush Toilet Conversion provides both quiet
operation and user control of water levels in the toilet
bowl. A single large pushbutton switch provides a simple
flush mode by activating both the rinse water supply and
the macerator discharge pump simultaneously. An addi-
tional rocker switch offers independent control of the
rinse water supply and discharge pump separately so
the bowl water level can be easily raised or lowered by
the user. This provides a method of minimizing water
use, when desired, as well as a means of raising the

water level in the bowl when appropriate for user com-
fort. It also allows for complete evacuation of the bowl
water while underway in rough sea conditions.

INSTALLATION

The 37255-Series Quiet-Flush Toilet Conversion is com-
plete with a dedicated PAR-MAX 4 pump to provide either
sea or lake water to rinse the toilet bowl when flushing the
toilet. This pump is intended to be located remotely from
the toilet but will function best if the distance from the toi-
let is kept to a minimum. Because it is self-priming, it may
be located above the vessel’s waterline. It must be
installed with the Pumpgard strainer (provided with the
toilet) located somewhere in the inlet plumbing to the
pump. The toilet also includes a multi-function flush con-
trol which should be installed in a bulkhead location that
is convenient to the toilet and allows access for wiring to
run from the power source and to both the toilet dis-
charge pump and the PAR-MAX rinse water pump.

Before beginning the conversion, close all seacocks con-
nected with the toilet's plumbing system and take pre-
caution to ensure they remain closed until the conver-
sion is complete. If the toilet being converted is an elec-
tric toilet, disconnect the electrical power to the toilet and
take precaution to ensure it is not restored until the con-
version is complete.

Disconnect both inlet and discharge hoses from the old
toilet and remove the toilet from its mounting surface. If
the toilet being converted is an electric model, discon-
nect the electrical wiring from the toilet. Remove the
hose connected to the back of the toilet's china bowl and
remove the china bowl and seat & lid assembly from the
old toilet base assembly. Ensure the bottom surface of
the china bowl is clean.The waste pump can be oriented
in any of the four possible mounting positions that pro-
vides the best clearance from surrounding obstructions
but is generally best positioned so it points to the rear of
the toilet bowl. The four 6 mm machine screws must be

Model 37255-Series

Summary of Contents for 37255-Series

Page 1: ...so allows for complete evacuation of the bowl water while underway in rough sea conditions INSTALLATION The 37255 Series Quiet Flush Toilet Conversion is com plete with a dedicated PAR MAX 4 pump to provide either sea or lake water to rinse the toilet bowl when flushing the toilet This pump is intended to be located remotely from the toilet but will function best if the distance from the toi let i...

Page 2: ...ner where it can be periodically inspected and cleaned of debris The Pumpgard strainer should be secured with two fasteners to a solid mounting surface with the flow arrow pointing towards the pump The inlet hose should be cut and each end attached to the strainer s ports The hose from the strainer s discharge port must connect with the PARMAX pump s inlet port Provided with the toilet is a six fo...

Page 3: ...el that is convenient to the toilet user and will also allow access to run the wires from the switch panel to both the toilet s waste pump motor and the PAR MAX pump as well as from the electrical power source to the switch panel To install the switch panel drill two 1 3 4 45 mm diameter holes slightly over lapping through the selected switch mounting surface per the attached template Ensure the t...

Page 4: ...impeller off the shaft Remove the two screws that secure the seal housing to the motor and slide the housing off the motor shaft Remove the two seal washers from under the head of each of the two seal housing retainer screws With a pair of needle nose pliers grasp the shaft seal and pull it from the seal housing Clean all parts and inspect for damage Lubricate the OD of the new seal with a small a...

Page 5: ...1000 12 1 Discharge Port 1 44107 1000 13 Screw 3 96050 0568 14 Chopper Plate with Lock Nut 1 37056 1000 15 Macerator Housing 1 37014 0000 16 Centrifugal Impeller 1 37006 0000 17 Set Screw 1 18753 0492 18 O ring 1 43990 0066 19 Seal 1 1040 0000 Qty Part Key Description Req Number 20 Screw 2 91010 0144 21 Washer Plastic 2 35445 0000 22 Seal Housing 1 37043 1000 23 Lock Washer 10 Stainless Steel 4 24...

Page 6: ...uter inlet valves and central discharge valve to ensure they seat smooth ly against the valve cage Lift the outer edges of each valve to make certain there is no debris lodged under any valve If there is debris lodged under any of the valves it will cause a diminished flow rate or loss of flow entirely If the valves do not seat smoothly against the valve cage the valve cage assembly should be repl...

Page 7: ...ANGE POSITIVE LEAD 1 Dia 25 4 102 6 152 7 1 8 181 8 3 8 213 C Overall Width B F D E 5 16 8 3 1 8 79 A 9 1 2 242 12 7 8 327 3 3 4 96 5 3 4 146 2 Leads 72 Long 1830 DIMENSIONAL DRAWING INCHES MILLIMETRES A B C D E F Compact Size Bowl 3 1 8 79 14 1 8 359 13 1 8 333 16 1 2 419 10 254 6 1 2 165 Household Size Bowl 4 5 8 117 14 1 8 359 14 3 4 375 19 3 4 502 10 3 4 273 9 229 ...

Page 8: ...esa California 92626 3998 Or to such alternate locations as may be designated on the product its container or this sheet Repair or replace ment made under this warranty will be shipped prepaid to Buyer C EXCLUSIONS FROM WARRANTY AND LIMITATION OF LIABILITY 1 The foregoing warranty is limited solely as set forth herein and applies only for the period designated above 2 SHALL NOT BE LIABLE FOR ANY L...

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