Dometic Spot Zero ZTC2000, Spot Zero ZTC Series, Spot Zero ZTC3000 User Manual

www.spotzerowater.com

1

TABLE OF CONTENTS

1. INTRODUCTION ........................................................................................................ 4

Congratulaons ............................................................................................................................................. 5

System Requirements and Operaon Guidelines ......................................................................................... 5

Acronyms and Denions ............................................................................................................................. 7

Principles of Reverse Osmosis ...................................................................................................................... 8

Unit Specicaons ........................................................................................................................................ 9

2. INSTALLATION AND COMISSIONING ........................................................................... 10

Feed Water.................................................................................................................................................... 11

Electrical Connecons ................................................................................................................................... 14

Commissioning Report Form ........................................................................................................................ 18

3. SYSTEM OPERATION ................................................................................................... 19

Home Screen ................................................................................................................................................. 20

Emergency Stop ............................................................................................................................................ 21

Operaon from Dock Feed ........................................................................................................................... 22

Water Maker Source ..................................................................................................................................... 23

Menu Opons ............................................................................................................................................... 24

Summary ....................................................................................................................................................... 25

System Informaon....................................................................................................................................... 25

Alarms ........................................................................................................................................................... 26

Alarm History ................................................................................................................................................ 27

Service Menu ................................................................................................................................................ 28

Units of Measurement .................................................................................................................................. 28

Maintenance ................................................................................................................................................. 29

Remote Support ............................................................................................................................................ 29

Enable Remote Support ................................................................................................................................ 30

Remote Touch Screen Setup ......................................................................................................................... 36

4. SYSTEM MAINTENANCE ............................................................................................. 40

2

5. SYSTEM SCHEMATICS .............................................................................................. 46

6. SYSTEM SPECS AND PARTS ...................................................................................... 51

3

1. INTRODUCTION

4

CONGRATULATIONS

Your Spot Zero™ reverse osmosis system is a durable piece of equipment, which, with proper care, will last
for many years. This User’s Manual outlines installaon, operaon, maintenance and troubleshoong details
vital to the sustained performance of your system.
Your system is designed to operate at a pressure of 80- 150 psi, unless otherwise stated. The recovery set for
your system is between 50%-75%.

NOTE: Prior to operang or servicing the Spot Zero reverse osmosis system, this User’s Manual must be read
and fully understood. Keep it and other associated informaon for future reference and for new operators

or qualied personnel near the system.

SYSTEM REQUIREMENTS AND OPERATION GUIDELINES

Plumbing

The membranes and high pressure pumps used on Spot Zero systems require a connuous and non­turbulent ow of water to the system with a minimum feed pressure of 20 psi during operaon, which does
not exceed 105°F.
The tubing or piping used for the inlet of the feed water is 1/2 NPT. The tubing or piping used for the dis­charge of the concentrate is 3/8 O.D. and should be run to an open over board in a free and unrestricted
manner.
The tubing or piping used for the product is 3/8 O.D. and can be transported to the holding tank or directly
through a high quality nylon tubing or PVC pipe or other FDA accepted materials.
Material must not precipitate in the system. Be certain that all of the components of the feed water are sol­uble at the concentraons aained in the system

CAUTION: Any restricons or blockage in the overboard discharge line can cause back pressure, which will

increase the system’s operang pressure. This can result in damage to the system’s components and possi­ble leaks of components or tubing.

Electrical

The motors used on Spot Zero™ systems are pump and motor combinaons. They are available in single­phase 115 volt or 230 volt AC.
Please ensure that the electrical circuit supplying the system is compable with the requirements of the spe­cic Spot Zero™ model.

5

Pre-Filtraon

Spot Zero™ systems are supplied with a 1 micron sediment pre-lter (part # 252404005) that lters out most
parcles over 1 microns, a GAC/KDF (part # 252404004) Cartridge that removes chlorine, chloramine, VOCs
and heavy metals. CAUTION: a tradional carbon block lter must not be used as it will not remove chlora­mines and will cause permanent membrane damage. Pre Filters should be changed every 100 hours and/or
whenever there is a pressure dierence of 15 psi or more between the pressure readings before and aer
the lter. The pump must NEVER be run dry. Operang the pump without sucient feed water will damage
the pump. ALWAYS feed the pump with ltered water. The pump is suscepble to damage from sediment
and debris.

NOTE: THE SZ10KDF2 CARTRIDGE MUST BE FLUSHED OUTSIDE OF SYSTEM BEFORE OPERATING TO REMOVE
CARBON DUST. You can head to www.spotzero.com/support to see demo videos. Do not

aempt to clean used lter cartridges. The SZ10KDF2 is rated to absorb chlorine, chloramine, heavy metals,
etc. up to 18,000 gallons of feed water, which is the equivalent to approximately 100 hours of run me.

CAUTION: If the pre-lter becomes clogged and the water ow to the pump is reduced or

interrupted, cavitaon will occur. This will damage the pump.

6

ACRONYMS AND DEFINITIONS

ACRONYM/SYMBOLS DEFINITION

FWF FRESH WATER FLUSH

RO REVERSE OSMOSIS

PSI POUNDS PER SQUARE INCH

GPM GALLONS PER MINUTE

GPD GALLONS PER DAY

TDS TOTAL DISSOLVED SOLIDS

PPM PARTS PER MILLION

TCF TEMPERATURE CORRECTION FACTOR

LP SWITCH LOW PRESSURE SWITCH

HP SWITCH HIGH PRESSURE SWITCH

Φ PHASE

SW SEA WATER

FW FRESH WATER

7

PRINCIPLES OF REVERSE OSMOSIS

REVERSE OSMOSIS

How Fresh Water Is Produced

Reverse Osmosis or “RO” is a process where freshwater water is produced by pumping saltwater
through a semi-permeable membrane.

Osmosis

Osmosis is a naturally occurring process where a weak solution will cross a semi-permeable mem­brane to mix with a highly concentrated solution. For example a freshwater solution will naturally
want to mix with a saltwater solution.

Reverse Osmosis

To reverse this process work is put into the system using a pump. The pump causes pressure to
build up on the saltwater side of the membrane. This pressure forces water across the semi­permeable membrane. The membrane is designed to allow the water molecules to pass while
preventing the salt and other solids from doing so. Fresh water is collected on the other side of
the membrane as a result.

8

UNIT SPECIFICATIONS

ZTC MODEL 2000

FW Configuration

(Spot Zero)
Feed Water Source

Rated Production Dock
Water –gpd(ldp)

Rejection and Flow Rates

FW Nominal TDSRejec-

tion % (Spot Zero)

FW Minimum

Concen-trate Flow

gpm (lpm)

Connections

FW Feed inch

(Spot Zero)

Product inch 3/8” QC 9.5mm 3/8” QC 9.5mm

Concentrate inch 1/2” QC 12.7mm 1/2” QC 12.7mm

Membranes

1 Vessel 2 Vessels

Fresh Water Fresh Water

2000(7571) 3000(11356)

95% 95%

1 (3.7) 1(3.7)

1/2” 1/2”

3000

FW Membrane Per

Vessel

FW Membrane Size 4039 4039

Pumps

FW Pressure Pump

Type

FW RO Motor amps 5.1 5.1

Electrical

Voltage

Weight lb. (kg)

1 1

Vane Vane

230V 50/60Hz 1Φ 230V 50/60Hz 1Φ

108(49) 108(49)

9

2. INSTALLATION AND COMMISSIONING

10

INSTALLATION PROCEDURE

FEED WATER

1. Plumb the feed water from the dock into the pre-lter inlet pressure regulator ng. 1/2” FNPT or 1”
MNPT custom connecon from customer.

Feed from dock

2. Tube cung and installaon procedure.

Cut the tube square and remove burrs and sharp edg­es. Ensure the outside diameter is free of score
marks. For so or thin walled tube we recommend
the use of a tube insert.

Push the tube into the ng, to the tube stop.

11

To disconnect, ensure the system
is depressurized, push the collet
square against the ng. With the
collet held in this posion the tube
can be removed.

3. From the pre- lter outlet ng, run the white nylon 1/2” Spot Zero water tubing to the feed from
pre-ltraon ng.

1/2” Tube

4. From the “Overboard” discharge ng, run the white nylon 1/2” Spot Zero water tubing to a

dedicated overboard ng. Water must be allowed to run freely, without any restricons or blockage
in the brine discharge line. Be sure that no back pressure exists in the “Overboard” discharge line.

Note: There is an internal check valve in the brine discharge line in the system.

12

1/2” Tube

To overboard

5. From the product to tank ng, run the white nylon 3/8” Spot Zero water tubing to the vessels fresh

water tank.

3/8” Tube

Ship’s fresh
water tank

FEED FROM WATERMAKER

1. Connect the 3/8” product line from the water maker to the “WATER MAKER IN” ng. Always install a

three way valve in line with this, so the water can be diverted to the spot zero system, or to the vessels
fresh water tank.

From water maker

3/8” Tube

13

Electrical Connecons

1. Supply and connect specied power (115v or 230v) from the vessels panel to the ZTC panel. Connect line
1 and line 2 to the terminals, and connect the ground wire to the ground bus bar. Be sure to conrm sys­tems rated voltage before applying power. Reference DWG SZ0027.

NOTE: IT’S RECOMMENDED
THAT A QUALIFIED ELEC­TRICIAN WIRE YOUR SYS­TEM IN ACCORDANCE
WITH ABYC REQUIRE-

MENTS.

WARNING: TO REDUCE THE
RISK OF ELECTRICAL
SHOCK, THE INCOMING
POWER SUPPLY MUST IN­CLUDE A PROTECTIVE
GROUND.

14

2. Connect the Pre-lter power leads as shown below.

15

S

E

F

S

HE

F

R

BRINE

DISCHARGE

OVERBOARD

D VOLUME MUS T

0.3

RESTRICTOR

PRODUCT

TANK

PRODUCT TO

SHIP

WAT

DOCK

FEED FROM

TAP WATER

FS

LEGEND

CHECK VALVE

NEEDLE VALVE

SOLENOID VALVE

SOLENOID VALVE

FR

XX

FLOW SENSOR

FLOW RESTRICTOR

SYPHON BREAK

FEED FROM

WATERMAKER

(DESALINATOR)*

1/2"

1/2"

1/2" NPT

TUBE SIZE

1/2"

1/2"

3/8"

1/2"

1/2"

3/8"

SHEET 1 OF 1

J

ZTC

F

DWG. #: SZ0032

L

TO ZTC TANK

DESCRIPTION

INLETS & OUTLETS

K

FEED FROM DOCK

FEED FROM PRE FILTER

B

A

C

WATERMAKER IN

VENT/OUTBOARD

E

PRODUCT TO TANK

MEMBRANE SUPPLY

MEMBRANE RETURN

F

J

K

H

MEMBRANE PRODUCT

DATE

NAME

L

INLET & OUTLET LOCATIONS

SCALE: 1:10

04-17-17

JIL

LOCATION

MFG APPR.

ENG APPR.

1

.010

1/2 BEND

.015

1/32

Q.A.

.005

CHECKED

DRAWN

C

H

E

PRE-FILTERS

A

ANGULAR: MACH

TWO PLACE DECIMAL

DIMENSIONS ARE IN INCHES

TOLERANCES:

THREE PLACE DECIMAL

FRACTIONAL

UNLESS OTHERWISE SPECIFIED:

1. SOME PARTS REMOVED IN ORDER

TO MAKE VISUALS MORE CLEAR.

NOTES:

B

PROPRIETARY AND CONFIDENTIAL

THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF SPOT ZERO. ANY REPRODUCTION IN

PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF SPOT ZERO IS PROHIBITED.