Dometic STIIC User manual

MARINE
CONTROL UNITS
L-5501 | Form No. 340945 12/19 | ©2019 Dometic Corporation
WARNING
Cancer and Reproductive Harm
www.P65Warnings.ca.gov
STIIC
EN Smart Touch Integrated Intelligence
Control (STIIC)
Installation and Operation Manual........2

2EN
Contents STIIC Controller
1 Explanation of Symbols and Safety
Instructions ............................ 2
1.1 Recognize Safety Information .............2
1.2 Understand Signal Words................2
1.3 Supplemental Directives.................3
1.4 General Safety Messages ................3
2 General Information ..................... 3
2.1 STIIC PLC LCD Display...................4
2.2 STIIC PLC Touchscreen Display ...........4
2.3 Inputs and Outputs .....................5
2.4 STIIC MODBUS Address Layout ...........6
3 Intended Use ........................... 6
4 Specifications .......................... 7
5 Wiring Diagram......................... 8
6 Installation and Setup................... 10
6.1 Making Terminal Connections in the
Electric Box ..........................10
6.2 Connecting the Touchscreen ............10
6.3 Configuring the STIIC PLC............... 11
7 Operation............................. 15
7.1 Accessing a Device Type................15
7.2 Managing an Air Conditioning Device.....15
7.3 Managing a Refrigeration Device .........17
7.4 Managing an Eskimo Ice Device..........18
7.5 Managing a FAMU or SWV Device........18
7.6 Managing a Reverse Osmosis Device .....19
8 Alarms ............................... 21
8.1 Using the Touchscreen to View Alarms ....21
8.2 Using the LCD Display to View Alarms .....21
9 Disposal ..............................22
10 Warranty Information................... 22
10.1 United States and Canada ..............22
10.2 All Other Regions .....................22
Contents
Service Center & Dealer Locations
Visit: www.dometic.com
Read these instructions carefully. These instructions
MUST stay with this product.
1 Explanation of Symbols and
Safety Instructions
This manual has safety information and instructions to
help you eliminate or reduce the risk of accidents and
injuries.
1.1 Recognize Safety Information
This is the safety alert symbol. It is used to alert
you to potential physical injury hazards. Obey all
safety messages that follow this symbol to avoid
possible injury or death.
1.2 Understand Signal Words
A signal word will identify safety messages and property
damage messages, and also will indicate the degree or
level of hazard seriousness.
DANGER!
Indicates a hazardous situation that, if not avoided,
will result in death or serious injury.
WARNING
Indicates a hazardous situation that, if not avoided,
could result in death or serious injury.
CAUTION
Indicates a hazardous situation that, if not avoided,
could result in minor or moderate injury.
NOTICE: Used to address practices not related to
physical injury.
IIndicates additional information that is not related
to physical injury.

3
EN
STIIC Controller General Information
1.3 Supplemental Directives
To reduce the risk of accidents and injuries, please
observe the following directives before proceeding to
install or operate this appliance:
• Read and follow all safety information and
instructions.
• Read and understand these instructions before
installing or operating this product.
• The installation must comply with all applicable local
or national codes, including the latest edition of the
following standards:
U.S.A.
– American Boat and Yacht Council (ABYC)
– ANSI/NFPA70, National Electrical Code (NEC)
1.4 General Safety Messages
WARNING: ELECTRICAL SHOCK, FIRE, AND/
OR EXPLOSION HAZARD. Failure to obey the
following warnings could result in death or
serious injury:
• Use only Dometic replacement parts and
components that are specifically approved for use
with the appliance.
• Avoid improper installation, adjustment, alterations,
service, or maintenance of the appliance. Service and
maintenance must be done by a qualified service
person only.
• Do not modify this product in any way. Modification
can be extremely hazardous.
• Use care when diagnosing and/or adjusting
components on a powered unit.
2 General Information
The Dometic STIIC Programmable Logic Controller
(PLC) provides a plug and play networking solution
for Dometic products. The user-friendly soware
connects a vessel’s Dometic devices and systems, like
air conditioning, water makers, ice makers, refrigeration
systems, and shipwide ventilation systems, to the
STIIC PLC. This technology allows the user to monitor,
manage, and troubleshoot the vessel’s marine comfort
systems from anywhere in the world, using a mobile
device or the Internet.
This is a MODBUS and CANBUS networked system.
The STIIC PLC is designed to work with unit controllers,
not to replace them. While the STIIC PLC allows you
to monitor and perform basic actions for the devices
enabled in the system, any in-depth diagnostics must be
done through the individual device or system.
IThe images used in this document are for reference
purposes only. Components and component
locations may vary according to specific product
models. Measurements may vary ±0.38 in.
(10 mm).

4EN
General Information STIIC Controller
2.1 STIIC PLC LCD Display
The STIIC PLC has an integrated LCD display with six
buttons for moving through the menus. This section
describes the LCD display buttons.
q r
ww t
eee y
1 LCD Display Buttons
qAlarm rScroll Up
wProgram tEnter
eEscape yScroll Down
No. Button Description
qAlarm Press the button when it is flashing red
to display the active alarm screen. See
“Using the LCD Display to View Alarms”
on page 21.
wProgram Press this button to display the system
menus. Use the scroll buttons to step
through the options. Tap the Enter button
to select an option.
eEscape Press this button to exit the current screen
and return to the previous screen.
rScroll Up Press this button to step through available
menu options, change values in fields,
and move through pages on the screen.
tEnter Press this button to confirm menu option
selections and saves changes.
yScroll
Down
Press this button to step through available
menu options, change values in fields,
and move through pages on the screen.
2.2 STIIC PLC Touchscreen Display
This section describes the buttons on the touchscreen
display.
q w er t y
2 Touchscreen Display
qSTIIC PLC
Configuration
rEskimo Ice
Systems
wAir Conditioning tFAMU & SWV
eRefrigeration yReverse Osmosis
No. Button Description
qSTIIC
Configuration
Tap the button to open the
configuration menus used for:
• Enabling/disabling devices
• Technical support monitoring
through a VNC (Virtual Network
Computing) server
• Naming room controls and KRAs
(KRA series condensing units)
• Viewing the soware version
See “Installation and Setup” on
page 10.
wAir
Conditioning
Tap the button to open the main page
for chiller and room control monitoring
and control. See “Managing an Air
Conditioning Device” on page 15.
eRefrigeration Tap the button to open the main page
for monitoring and controlling the KRA
coolers and freezers on a vessel. See
“Managing a Refrigeration Device” on
page 17.
rEskimo Ice
Systems
Tap the button to open the main page
for monitoring and controlling up to
three Dometic Eskimo ice makers.
tFAMU & SWV Tap the button to open the main
page for monitoring and controlling
the FAMU (Fresh Air Make-up Unit)
and the SWV (Shipwide Ventilation)
system.
yReverse
Osmosis
Tap the button to open the main
screen for monitoring and controlling
the XTC SeaXchange , ZTC Spotzero,
and XZ combination system.

5
EN
STIIC Controller General Information
2.3 Inputs and Outputs
The STIIC PLC allows you to connect different Dometic
devices and has outputs to display the information
received by the devices. Figure 3 illustrates the STIIC PLC
I/O layout.
3 STIIC PLC I/O Layout
2.3.1 PLC Inputs
The PLC Input Table describes the inputs for the
STIIC PLC.
IIf a temperature sensor is defective or not
connected, the STIIC PLC generates an alarm for
that sensor.
PLC Input Table
Input I/O# Description Port
Configuration
MBM_FB2 J26 Connection
port for Dometic
devices to
communicate
with the STIIC PLC
•Baudrate: 19200
•Data length: 8
•Stop bits: 1
•Parity: None

6EN
Intended Use STIIC Controller
2.3.2 PLC Outputs
The PLC Output Table describes the outputs for the
STIIC PLC.
IIf a temperature sensor is defective or not connected,
the STIIC PLC generates an alarm for that sensor.
PLC Output Table
Output I/O # Description Port
Configuration
Touch_
pLAN
J11 Connection
to the
Touchscreen
•Baudrate: 3840
•Data length: 8
•Stop bits: 1
•Parity: None
MODBUS
TCP/IP
ETH MODBUS
TCP/IP slave
connection
Port: 502
MODBUS
slave
J25 MODBUS
RTU slave
connection
•Baudrate: 3840
•Data length: 8
•Stop bits: 1
•Parity: None
MODBUS
slave
Fieldbus
Card MODBUS
RTU slave
connection
•Baudrate: 19200
•Data length: 8
•Stop bits: 2
•Parity: None
MODBUS
slave
BMS
Card MODBUS
RTU slave
connection
•Baudrate: 19200
•Data length: 8
•Stop bits: 1
•Parity: None
2.4 STIIC MODBUS Address Layout
The STIIC MODBUS Address Layout Table lists the
MODBUS address layout for the various systems that can
be controlled by the STIIC PLC.
STIIC MODBUS Address Layout Table
System Max
Units on
STIIC
MODBUS
Device Add
Platinum Chillers 1 1 (Master PLC)
2 (Slave PLC)
VARC Chiller 1 3
XTC Seawater 1 11
ZTC Freshwater 1 13
XZ Combination System 1 15
SWV 1 20
MODBUS Converter 4 30–33
KRA #1 3 40–42
KRA #2 3 43–45
KRA #3 3 46–48
KRA #4 3 49–51
KRA #5 3 52–54
KRA #6 3 55–57
FAMU 1 60
3 Intended Use
The STIIC PLC application technology simplifies
integration to ship-wide network control systems. This
allows one connection point for third-party soware
developers to communicate with enabled Dometic
systems on the network and provides easy monitoring
and control access for the user and technicians.
This manual provides the necessary information for the
proper installation and operation of the STIIC PLC.
NOTICE: Insufficient installation, configuration, or
operating parameters could result in unsatisfactory
performance and possibly failure.
The manufacturer accepts no liability for damage in the
following cases:
• Faulty assembly or connection
• Damage to the product resulting from mechanical
influences and excess voltage
• Alterations to the product without express permission
from the manufacturer
• Use for purposes other than those described in the
operating manual
Dometic Corporation reserves the right to modify
appearances and specifications without notice.

7
EN
STIIC Controller Intended Use
4 Specifications
This section describes the display, electrical,
environmental, and physical specifications for the STIIC
PLC components: Touchscreen display, LCD display, and
electric box.
Touchscreen Technical Specifications
Display
Type LCD TFT
Resolution 800 x 480 (WVGA)
Active Display Area 7 in. (178 mm) diagonal
16:9 ratio
Colors 64 K
Backlighting LED
Brightness Adjustment Ye s
Electrical
Power Supply •24 VAC (-15% to +10%)
•50–60 Hz Max
•1.2 A (24 VAC)
•12–30 VDC, ±5% Max
•0–9 A at 12 VDC
Power Input 12 W (minimum power cable
cross-section of 0.5 mm2)
Fuse Automatic
Battery Not rechargeable, lithium,
model BR2330
Soware Class and
Structure
A
Resistance to Heat and Fire Category D
Immunity Against Voltage
Surges
Category II
Insulation Class Class III, incorporate in
class I or class III devices
Environmental Conditions
Operating Temperature -4°F to 140°F
(-20°C to 60°C)
Storage Temperature -4°F to 140°F
(-20°C to 60°C)
Operating and Storage
Humidity
5% to 85% relative humidity,
non-condensing
Protection Rating IP65 (front); IP20 (rear)
Degree of Pollution Degree II
Standards of Compliance Compliant with European
EMC and LVD directives;
UL Certification
PLC Technical Specifications
Physical
Dimensions (H x W x D) 4.4 in. x 8.96 in. x 2.4 in.
(110 mm x 227.5 mm x 60 mm)
Assembly •DIN rail (in accordance with
DIN 43880 and IEC EN
50022)
•Panel
Environmental Conditions
Operating Conditions •-4°F to 140°F
(-20°C to 60°C)
•90% relative humidity,
non-condensing
Storage Conditions •-22°F to 158°F
(-30°C to 70°C)
•90% relative humidity,
non-condensing
Ingress Protection IP20 on the front panel only
Controller Pollution Class 2
Class According to
Protection Against Electric
Shock
Integrate into class I and/or
class II equipment
Electrical
Power Supply (VAC) •24 VAC (-15% to +10%)
•50–60 Hz Max
•2.5 A T external fuse
•45 VAC
Power Supply (VDC) •28–36 VDC (-20% to +10%)
•2.5 A T external fuse
•30 W
Battery •3 VDC lithium button battery
•.95 in. x .12 in. (24 x 3 mm)
•Code CR2430
•3 VDC lithium button battery
•.79 in. x .13 in.(20 x 3.2 mm)
•Code BR2032
Soware Class and
Structure
A
Electric box Dimensions
Height 10.50 in. (267 mm)
Width 15.00 in. (381 mm)
Depth 5.00 in. (127 mm)

8EN
Intended Use STIIC Controller
5 Wiring Diagram
Figure 4 and Figure 5 provide examples of the wiring
diagram and terminal connections used for STIIC PLC.
4 STIIC PLC Wiring Diagram
(with 4 Room Controls, 2 KRA units, VARC Chiller, ZTC SpotZero,
SeaXchange and 2 Touchscreens)

9
EN
STIIC Controller Intended Use
5 Device Terminal Connections

10 EN
Installation and Setup STIIC Controller
6 Installation and Setup
This STIIC PLC is set up with basic factory defaults, so the
control requires configuration to match the constraints of
the devices that are installed in the vessel.
6.1 Making Terminal Connections in
the Electric Box
WARNING: ELECTRICAL SHOCK HAZARD.
Exercise extreme care when working around
energized equipment. Failure to obey this warning
could result in death or serious injury.
The STIIC PLC electric box comes in two different versions,
one with a 24 VDC power supply and one without the
24 VDC power supply. The components inside the electric
box are powered using 24 VDC. Verify which model is
being installed. Figure 6 shows the STIIC PLC electric box
without the 24 VDC power supply.
6 STIIC PLC Electric Box
Make the following connections to the electric box:
1. Wire the input power to the circuit breaker labeled
“CONTROL”.
2. Wire the three-wire communication cable from the
devices installed in the vessel to the appropriate
terminal in the STIIC PLC electric box:
– Wire MODBUS controlled units only to MODBUS
feedthroughs.
– Wire CANBUS controlled units only to CANBUS
feedthroughs.
Refer to Figure 5 on page 9 and the “Connection
Port Table” on page 10 for information on the correct
port to use when connecting Dometic devices to the
STIIC PLC.
Connection Port Table
Dometic Devices Connection to STIIC PLC
Platinum Chiller MODBUS Communication
VARC Chiller MODBUS Communication
Fresh Air Makeup PLC
Control
MODBUS Communication
XTC SeaXchange MODBUS Communication
ZTC SpotZero MODBUS Communication
XZ Combination MODBUS Communication
Shipwide Ventilation MODBUS Communication
Eskimo Ice CANBUS Communication
Room Controls CANBUS Communication
KRA MODBUS Communication
6.2 Connecting the Touchscreen
WARNING: ELECTRICAL SHOCK HAZARD.
Verify that all unit power lines are in unison phasing
to eliminate the potential for a short circuit. Failure
to obey this warning could result in death or serious
injury.
Figure 7 shows the available Touchscreen connection
ports.
7 Touchscreen Connections
qPower Input (24 VAC) eEthernet Connectivity
Port
wUSB Port rMODBUS
Communication Port
(serial port 1)
Make the following connections to the touchscreen:
1. Connect a 24 VAC power supply to the power input.
2. Connect a three-core communication cable to serial
port 1.

11
EN
STIIC Controller Installation and Setup
6.3 Configuring the STIIC PLC
Configuring the STIIC PLC is a several step process. To
give the STIIC PLC recognition of the devices available
for control, you must enable the devices installed on the
vessel and disable the devices that are absent from the
vessel.
The STIIC PLC supports two types of room control
thermostats, each with different features. One of the
thermostat differences is the number of fan speeds
available. The room controls on the STIIC PLC must
be configured for a three-speed or five-speed option,
depending on the thermostat installed.
This section describes how to configure the STIIC PLC
by updating the status of a device, setting a fan speed
option for room controls, and when necessary, setting
up a static IP address for network configuration.
6.3.1 Using the Touchscreen to Enable/
Disable Devices
1. On the Main screen, tap STIIC CONFIGURATION.
8 Touchscreen Main Screen
2. The STIIC Configuration screen appears. Tap Device
Enable.
9 STIIC Configuration Screen
3. Select the type of device to enable.
10 Enable/Disable Devices Screen
4. Tap Enable or Disable for each device.
11 Refrigeration Enable/Disable Devices Screen
5. For KRAs, in addition to enabling/disabling, enter the
number of boxes per KRA (max. 3 boxes).

12 EN
Installation and Setup STIIC Controller
12 KRA Controls Enable/Disable Devices Screen
13 KRA Controls Box Number Entry Screen
6.3.2 Using the Touchscreen to Configure
Room Controls
1. Perform steps 1–3 in “Using the Touchscreen to
Enable/Disable Devices” on page 11.
2. Tap the FAN SPEED SETTING switch to select the
appropriate fan speed, depending on the room
control display.
14 Room Control Fan Speed Setting Switch
6.3.3 Using the Touchscreen for Setting
Up Room Controls and KRAs
1. On the Main screen, tap STIIC CONFIGURATION to
enter the STIIC Configuration screen.
2. Tap Room Controls Naming.
15 STIIC Configuration Screen
3. Verify the room control CANBUS ID# on the room
control and use the drop-down menu to change the
name based on the ID#.
16 Device Naming - Room Controls Screen
4. Tap the configuration icon to return to the STIIC
Configuration screen.
5. Tap KRA Naming.
6. Use the KRA drop-down menu to select a KRA name.

13
EN
STIIC Controller Installation and Setup
17 KRA Device Naming Screen
7. Use the KRA ID drop-down menu to select a name for
the KRA box.
18 KRA Box Naming Drop-Down Menu
8. Repeat steps 1–7 for each room control and KRA.
6.3.4 Using the Touchscreen for Setting
up the Remote Support VNC Viewer
The remote support screen allows you to set up the STIIC
PLC to be accessed by Dometic technical support.
To display the Remote Support screen from the Main
screen:
1. On the Main screen, tap STIIC CONFIGURATION.
The STIIC Configuration screen appears.
2. Tap the red phone icon next to Enable Remote
Support.
19 STIIC Configuration Screen
The MobileVNC Settings dialog box appears.
20 MobileVNC Settings Dialog Box
3. Tap the Control tab.
4. Tap Start to enable remote access.
5. Note the IP address next to the pGD TOUCH IP for
use on the VNC Viewer app.
6. To end remote access, select Stop on the Control
tab.
6.3.5 Using the LCD Display to Enable/
Disable Devices
1. From the Main screen, press Program.
21 LCD Display Main Screen

14 EN
Installation and Setup STIIC Controller
2. Select STIIC Setup 1 or STIIC Setup 2 to view the
devices to enable/disable. If the vessel has more
than 10 room controls, additional room controls are
enabled through the RoomControl ##-## menus.
22 Main Menu Screen
3. Press Enter to select and go to the next screen.
23 Enable/Disable Screen
4. Use the scroll buttons to select a device. Press Enter
to update the number (0=disabled, 1=enabled).
24 Device Enabled Screen
5. Press Escape to go to the Main screen.
6. Repeat steps 1–5 to enable or disable other devices.
6.3.6 Using the LCD Display to Configure
Room Control
1. Press Program to enter the Main menu and scroll to
the room controls.
25 Main Menu Screen
2. Select a Room Control and press Enter.
IThe first selection in the Room Control screen is to
select a fan speed. Verify which model you have to
select the appropriate setting.
26 Room Control Screen
3. Press Enter to update the fan speed value
(0=3-speed, 1=5-speed).
27 Fan Speed Selection Screen
4. Repeat steps 1–3 for each room control.
6.3.7 Using the LCD Display to Assign IP
Addresses
The STIIC PLC can be setup to have a static IP address for
network configurations.
1. Press and hold Alarm and Enter for five seconds or
until the screen goes to the PLC menu.
28 Main Screen
2. Select SETTINGS.
29 Main Menu Screen
3. Select TCP/IP SETTINGS.

15
EN
STIIC Controller Operation
30 Settings Screen
By default the DHCP is ON/AutoIP.
4. Scroll Up/Down to change DHCP to Off. Press Enter.
31 TCP/IP Settings Screen
5. Enter the desired IP Configuration information.
6. Enter Yes in Update Config to save the information.
32 Update Configuration Screen
7 Operation
This section describes the features available for control
of the devices tied to the STIIC PLC.
7.1 Accessing a Device Type
From the Main screen, select the icon of the type of
device you wish to control.
33 Main Screen
7.2 Managing an Air Conditioning
Device
This section describes how to manage a Chiller or Room
Control device enabled on the system.
7.2.1 Managing the Chiller Control
To access the Chiller system from the Main screen, tap
AIR CONDITIONING and tap CHILLER.
34 Air Conditioning Main Screen
The Chiller Menu displays.

16 EN
Operation STIIC Controller
q
w
e
r
ty
35 Chiller Main Menu
qLive Supply and
Return Temperature
Readings
rMode of Operation
(Off/Cool/Heat/
Electric Heat)
wPercentage of
System Demand
tTemperature Set
Points
eControl Type yAverage Supply
Temperature
To change the value of the set points:
1. Tap the set point (Cooling or Heating).
The keypad appears.
36 Keypad
2. Enter the temperature within the range specified and
tap OK.
7.2.2 Managing the Room Controls
To access the room controls from the Main screen, tap
AIR CONDITIONING and tap ROOM CONTROLS.
37 Air Conditioning Main Screen
This is the main screen for room controls. Tap the specific
room to view details or use Global Control to set the
mode and temperature set points for all rooms.
38 Room Control Main Screen
To use the Global Control:
1. Tap Global Control.
The Global Room Control pop-up screen appears.
39 Global Room Control Pop-Up Screen
2. Select a control option:

17
EN
STIIC Controller Operation
– Off
– Auto
– Setpoint (manual adjustment)
To manually adjust the setpoint:
a. Tap the SETPOINT value box (the initial value
reads 0°F).
A keypad appears.
40 Keypad
b. Enter the setpoint value.
c. Tap OK to return to the Global Room Control pop-
up screen.
3. Tap Set all Room Controls to apply the change.
4. Tap the Home icon to return to the Main screen.
7.3 Managing a Refrigeration
Device
This section describes how to manage the KRA series
condensing units enabled on the system.
1. To access the KRA controls from the Main screen, tap
REFRIGERATION.
41 KRA Main Menu Screen
The main KRA menu appears listing the enabled
condensing units.
2. Perform one of the following actions:
• Tap the drop-down menu to change the KRA Unit of
Measurement.
• Tap the button for the KRA you wish to monitor.
When a KRA is selected, the settings screen for the KRA
appears.
42 KRA Settings Screen
3. Perform one of the following actions:
• Turn the KRA on or off.
• View the current temperature.
• Change the setpoint (manual adjustment).
To manually adjust the setpoint:
1. Tap on the rectangle next to the setpoint.
A keypad appears.

18 EN
Operation STIIC Controller
43 Keypad
2. Enter the desired setpoint value.
3. Tap OK.
The STIIC PLC records a log of the temperature inside
each KRA box. Select the Trend icon to open the trend
graph.
44 KRA Trend Graph Screen
Perform one of the following actions:
• Select an option on the drop-down menu to change
the interval of data.
• Use the le or right arrows to change the date or
time.
• Save the logged temperature data to a USB drive:
a. Plug a USB drive into the touchscreen.
b. Tap the USB icon.
The system saves the logged data.
7.4 Managing an Eskimo Ice Device
This section describes how to manage an Eskimo Ice
machine. There is a maximum of three Eskimo Ice
machines that can be viewed on the STIIC PLC.
To access the Eskimo Ice controls from the Main screen,
tap ESKIMO ICE.
45 Eskimo Ice Main Screen
The main Eskimo Ice screen appears listing the available
Eskimo Ice machines. Select the machine you want to
view.
Perform one of the following actions:
• Turn the machine on or off.
• View the machine status (Full or Filling) while running.
• View the voltage to the ice machine.
• View the current going to the compressor and auger.
• Tap the trend icon next to the current or voltage lines
to view trend data.
To manually adjust the setpoint
1. Tap on the rectangle next to the setpoint.
A keypad appears.
2. Enter the desired setpoint value.
3. Tap OK.
7.5 Managing a FAMU or SWV
Device
This section describes how to manage a FAMU or SWV
control device that has been enabled on the system.

19
EN
STIIC Controller Operation
7.5.1 Using the FAMU Control
To access the FAMU control from the Main screen, tap
FAMU & SWV and tap FRESH AIR MAKE-UP.
46 FAMU or SWV Main Screen
The FAMU Main screen displays. There are three options
available: Normal Mode, Technician Mode, and Factory
Settings.
47 FAMU Main Screen
Perform one of the following actions in Normal Mode:
• Turn the machine on or off.
• Monitor the humidity levels.
• Monitor the temperature values.
• View the fan speed and the blower speed percentage.
The technician mode and factory settings options allow a
technician to modify the parameters of the system. These
options require a password to access. Only Dometic
approved technicians can access these options.
7.5.2 Using the Shipwide Ventilation
Controls
To access the SWV controls from the Main screen, tap
FAMU & SWV and tap SHIPWIDE VENTILATION.
48 Shipwide Ventilation Main Screen
The Shipwide Ventilation Main screen displays. Perform
one of the following actions:
• Place the system in Auto or Manual mode.
• Stop the system.
• View the system status.
• View the intake and exhaust fan speeds.
• View the temperature and pressure levels.
• Control the fan speed or place it in reverse mode
(Manual mode only).
7.6 Managing a Reverse Osmosis
Device
This section describes how to manage an XTC
SeaXchange water maker, ZTC SpotZero freshwater
maker, or combination XZ Series device that is enabled
on the system.
7.6.1 Using the XTC SeaXchange Control
To access the SeaXchange control from the Main screen,
tap REVERSE OSMOSIS and tap Sea X Change.

20 EN
Operation STIIC Controller
49 Reverse Osmosis Main Screen
The XTC SeaXchange Main screen displays.
50 XTC SeaXChange Screen
Perform one of the following actions:
• Turn the machine on or off.
• Access the Auto Shut Down mode.
• Monitor the pump status.
• Monitor the valve status.
• View the amount of water produced.
7.6.2 Using the ZTC SpotZero
To access the SpotZero controls from the Main screen,
tap REVERSE OSMOSIS and tap Spot Zero. The ZTC
SpotZero Main screen displays.
51 ZTC SpotZero Main Screen
Perform one of the following actions:
• Monitor the pump status.
• Monitor the valve status.
• View the amount of water produced.
7.6.3 Using the XZ Series Combination
Control
To access the XZ Series controls from the Main screen,
tap REVERSE OSMOSIS and tap Combination XZ.
The XZ Series Main screen displays.
52 XZ Series Main Screen
The combination XZ system from the STIIC PLC is a
combination of the XTC watermaker and the ZTC
Spotzero unit. The STIIC PLC screen displays the similar
information as the screens for the individual controls,
combined onto one screen.