Pentair TRACETEK TTDM-128 User manual

1 / 12THERMAL BUILDING SOLUTIONS EN-TraceTekTTDM128-IM-H5734104/16
TRACETEK
GENERAL INFORMATION
Please read these instructions carefully and keep them in a safe
place (preferably close to the TTDM-128) for future reference.
These instructions must be followed carefully to ensure proper
operation.
The TTDM-128 Leak Detection Master Module has been designed
specifically for use with TraceTek sensing cables, point sensors,
sensor interface modules and relay modules. The TTDM-128 can
directly monitor up to 1500 m (5000 ft) of sensing cable, and large
networks of remote leak detection modules.
An external disconnect device and appropriate branch circuit
protection (no more than 20 amp rating) should be provided for
the TTDM-128. The disconnect device should be clearly marked
as such. Follow all national and local codes and regulations
applicable to the installation.
TOOLS REQUIRED
• Drillorholepunchforelectricalconduitentries
• Phillips(cross-head)screwdriver
• Smallflat-headscrewdriver
INSTALLATION ITEMS NOT SUPPLIED
• Wallfastenersforsurfacemounting(fourscrews)
STORAGE
Keep the module in a dry place prior to installation to avoid
possible damage to internal components.
APPROVALS AND CERTIFICATIONS
General Signaling Equipment
76LJ
TYPE NM
TraceTek Leak DeTecTion MasTer MoDuLe insTaLLaTion insTrucTions
TTDM128
TRACETEK
IMPORTANT WARNINGS AND NOTES
The following icons are used extensively throughout this manual to alert you to important
warnings that affect safety and to important notes that affect the proper operation of the
unit. Be sure to read and follow them carefully.
PRODUCT INFORMATION
TTDM-128 115 Vac +15%, –20%; 50/60 Hz
230 Vac ±10%; 50/60 Hz
TTDM-128-24V 24 Vac +5%, –35% 24 Vdc ±20%
Power consumption 10 VA for TTDM-128
9 VA for TTDM-128-24 V
Installation categories Overvoltage Category II, Pollution Degree 2
Built-in relays Number: Three(Service,Leak,Fault)
Type: DPDT
Rating: 5 A at 250 Vac/24 Vdc
Storage temperature –18°C to 60°C (0°F to 140°F)
Operating temperature 0°C to 50°C (32°F to 122°F)
Enclosure Type 12; IP 54
Humidity 5% - 95% non-condensing
Max Altitude 2000 m (6,562 ft)

2 / 12 THERMAL BUILDING SOLUTIONS
EN-TraceTekTTDM128-IM-H5734104/16
1
LCD display
2
LEDs with icons
3
Test key
4
Silencekey
5
Reset key
6
Menu keys
7
User Interface board
8
4—20 mA board (optional)
9
SensorInterfaceboard
bk
Motherboard
bl
Power supply board
bm
Fuse (500 mA, 250 V, time delay)
bn
Power cable plug and socket
bo
VoltageSelectorSwitch
bp
Sparefuse
bq Ground/earth stud
br
Gland plate
bs
Fault relay cable plug and socket
bt
Leak relay cable plug and socket
ck
Servicerelaycableplugandsocket
cl
4—20 mA port plug and socket
cm
RS-232/485hostportplugand
socket
cn
Sensingcableplugandsocket
co
RS-485TraceTekNetworkPlug
 &Socket
cp
Ribbon cable
cq HostportRS-232/485selector
cr 9pinRS-232socket
cs Reset pins
ct Volume adjustment
dk LCD contrast adjustment
PL indicates power limited circuits






  














TRACETEK
WARNING:
Shock hazard. Shut off power before opening enclosure door.
SAFETY INSTRUCTIONS
WARNING:
The installation, adjustment or repair of the TTDM-128 involves risk of contact with potentially
lethal voltages and currents. These Installation Instructions are for use by qualified personnel
only. To reduce the risk of electric shock, do not perform any servicing other than that specified in
the Installation Instructions unless you are qualified to do so.
Refer servicing to qualified personnel.
TheenclosuredoorshouldremainclosedwhiletheTTDM-128unitisoperational.Servicingor
adjustments should not be performed while the circuits are energized.
EXPLANATION OF SYMBOLS USED ON THIS EQUIPMENT
The following symbols are used to identify parts and provide warnings for the TTDM-128 unit.
CAUTION:RiskofElectricShock.Circuitsarelive.Disconnectunitbeforeservicing.
Do not remove cover. Do not open cover while energized. No user serviceable parts
inside. Refer servicing to qualified personnel.
GROUND- This symbol identifies the equipment ground points.
Direct Current
Alternating current
This symbol identifies important safety warnings and notes that affect the proper
operation of the unit.

3 / 12THERMAL BUILDING SOLUTIONS EN-TraceTekTTDM128-IM-H5734104/16
INSTALLING THE TTDM128
IMPORTANT: The TTDM-128 is an electronic unit. During installation, take the following
precautions to avoid damage to its electronic components:
• To avoid damage to the unit, store the TTDM-128 module in its cardboard box until
construction is complete.
• Handlewithcare,avoidmechanicaldamage.
• Keeptheelectronicsdry.
• Ifhandlingcircuitboards,holdthembytheiredgestoavoidphysicalcontactwithelectronic
components.
• Avoidexposuretostaticelectricity.
• Avoid contamination with metal filings, liquids, or other foreign matter.
Select the mounting position.
Choose a location indoors where the module will be protected from the elements and temperature
extremes. Follow all national and local codes and regulations applicable to the installation.
• Removethemodulefromitscarton.Donotremovetheprotectivefilmfromthemembrane
on the front of the unit.
• Opentheenclosuredoorusingaflat-bladescrewdriveroracoin.
WARNING:
IGNITION HAZARD.DonotmounttheTTDM-128unitinahazardouslocation.Sensingcable
connected to the TTDM-128 may (subject to approvals restrictions) be located in hazardous
locations, but the module itself must be in an ordinary area.
IMPORTANT: The TraceTek sensing circuit is power limited, so the TraceTek leader or jumper
cable and the power supply cable must not run in the same conduit.
Mounting the Enclosure
Install the enclosure using four screws (selected by installer) in the prepunched 8 mm (5/16-inch)
mounting holes with centers as shown in Figure 3. If plastic plugs are in the mounting holes,
remove them.
Make sure the rubber elastomeric washers (provided in the shipping box) are aligned to seal
around the mounting screws to maintain the TYPE 12 and IP54 ratings.
300 mm
(11.81 in)
Figure 3
261 mm
(10.26 in)
240 mm
(9.45 in)
200 mm
(7.87 in)
20 mm
(0.79 in)
20 mm
(0.79 in) mounting hole
(four places)
8 mm (5/16 in)
Attachment points
for motherboard
(four places)

4 / 12 THERMAL BUILDING SOLUTIONS
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Making Enclosure Entries Using the Removable Gland Plate
The removable gland plate br on the bottom edge of the enclosure provides a location to feed
wires into the enclosure (Figure 4). The plate is attached with eight screws. Unscrew these to
remove the gland plate, then you can drill or punch holes in the gland plate appropriate for your
application. There is sufficient width for up to five 1/2-inch or M20 holes. Remove all metal filings
and dust from the gland plate before remounting. Take care not to damage the gasket on the gland
plate. You must secure the gland plate ground wire to the chassis ground lug after remounting the
gland plate.
Gland plate
Gasket
Figure 4
Screws
Grounding wire to
attach to ground
lug in enclosure
terminal 62.

CONNECTING THE POWER CABLE AND RELAYS
WARNING:
Shock hazard. Disconnect from live voltage prior to opening enclosure door.
TTDM-128 Power Supply Connection
• OpendoorofTTDM-128enclosure.
• For110/220Vacpowersupply:selecttheappropriatevoltageusingthevoltageselectorswitchbo.
TTDM-128-24 V Power Supply Connection
IMPORTANT: For proper operation of the TTDM-128-24 V, use a power supply whose output is
electrically isolated from the incoming line power and ground.
• EachTTDM-128-24Vrequiresaseparateisolatedpowersupply.

5 / 12THERMAL BUILDING SOLUTIONS EN-TraceTekTTDM128-IM-H5734104/16
TTDM-128 and TTDM-128-24 V Power Wiring Connection
• Thereisnointernalmechanismforde-energizingthepower.Installermustprovideindividual
branch circuit breaker (no more than 20 amp rating and short circuit rating of minimum 5 kVA)
within line of sight.
• Passthepowercablethroughtheglandplateadapter/bushingintotheenclosure.
• Connecttheground/earthwiretotheground/earthstudbq.
• Theground/earthstudismarkedwiththissymbol:
IMPORTANT: Proper grounding/earthing of the TTDM-128 enclosure is important to avoid the
possibility of electromagnetic interference.
• Removethepowercableplugfromthesocketbn on the power supply board bl.
• Connectthepowersupplywirestothepowercableplug.UseL2forneutral,ifpresent.
IMPORTANT:Theterminalscanacceptwires10AWG(4.7sq.mm)orsmaller.Werecommend
12AWG(3.0sq.mm)wires,withbranchcircuitprotectionsizedaccordingly.Cableshouldhavea
temperature rating of 65°C minimum.
• Insertthepowercableplugbackintothesocketbn on the power supply board bl.
VAC IN
Use L2
for neutral,
if present.
Do not
exceed
maximum
voltage
rating
110/220 Vac power supply
24 V power supply



Do not
exceed
maximum
voltage
rating



6 / 12 THERMAL BUILDING SOLUTIONS
EN-TraceTekTTDM128-IM-H5734104/16
Connect the alarm relays.
The TTDM-128 has three relays, for service ck, leak bt, and fault bs. Each relay provides two
Form-C relay contacts, and normally open and normally closed contacts are both provided. The
relays are de-energized to indicate an alarm condition. The illustration shows the relay status in
the alarm (de-energized) state.
The illustrations that follow show how relays can be jumpered together to allow remote
monitoring of the TTDM-128 status with only a single pair of wires. The TTDM-128 de-energizes
its relays to signal an alarm condition. Therefore, loss of power, as well as any other type of alarm,
would signal the remote alarm.
IMPORTANT: Therelayplugscanacceptwires10AWG(4.7sq.mm)orsmaller.Werecommend18
AWG(1.0sq.mm)wires.Cableshouldhaveatemperatureratingof65°C.
IMPORTANT: Maximum load for relays is 5 A.
LEAK RELAYSERVICE RELAY FAULT RELAY
Monitoring circuit
(alarm on open circuit)
Relays wired
in series
Alarm on open circuit
Monitoring circuit
(alarm on closed circuit)
Relays wired
in parallel
Alarm on closed circuit



7 / 12THERMAL BUILDING SOLUTIONS EN-TraceTekTTDM128-IM-H5734104/16
TESTING THE MODULE
Test after supplying power.
• Closeandlatchtheenclosuredoor.
• Supplypowertotheunit.Whenpowerissupplied,thegreenLEDilluminates,andtheunitgoes
through a series of self-tests. After the start-up sequence is complete, the module should
reportafaultalarm(thisisnormal;thereisnosensingcableattached).PresstheredSilence
key to silence the audible alarm. Verify that the display appears similar to the one shown here
(the time and date may be different):
If anything other than the above occurs, check all connections. If unit still does not appear to
operate properly, contact a TraceTek representative for assistance.
• PresstheTestbutton.Themoduleconductsanumberofself-tests.
• Ifthetestsaresuccessfullycompleted,recordthisontheinstallationrecord.
• Turnoffthepowersupplytotheunit.
Test with TTDM-128 test plug.
• Toconductamorecompletetest,usetheTraceTekTTDM-CTPtestplug(packedinaplastic
bag in the TTDM packaging). Insert the plug into the sensing cable socket cn on the sensor
interface board 9.
• Closeandlatchtheenclosuredoor.
• Supplypowertotheunit.Whenpowerissupplied,theunitwillagaingothroughaseriesofself-tests.If
the test plug is in the sensing cable socket, after the module completes the start-up sequence it should
soundanddisplayaleakalarm.PresstheSilencekeytosilencetheaudiblealarm.TheredLeakLED
and green Monitoring LED should both be illuminated, and the screen display should appear similar to
the one shown here (depending on the setting).
• Ifanythingotherthantheaboveoccurs,checkallconnections.Ifunitstilldoesnotappeartooperate
properly, contact a TraceTek representative for assistance.
• Ifthetestissuccessfullycompleted,recordthisontheinstallationrecord.
• Turnoffthepowersupplytotheunit.
• RemovetheTTDM-CTPtestplugandstoreitinasecureplaceforfutureuse.
• Ifnotimmediatelyconnectingthesensingcable,orTraceTeknetwork,closeandlatchtheenclosure.
Depending on the units selected, the leak
distance should be within the values below:
feet: 527 to 548 ft
meters: 160 to 168
zones: 11

8 / 12 THERMAL BUILDING SOLUTIONS
EN-TraceTekTTDM128-IM-H5734104/16
CONNECT THE SENSING CABLE
If the TTDM-128 will be used to monitor a sensor directly, follow these instructions to connect
the sensor to the TTDM-128. If the TTDM-128 is being used only as a network master, skip to
Connecting the TraceTek Network.
Prepare sensing cable.
Ensure that the sensing cable has been installed and tested in accordance with the instructions
provided with the cable.
Make connections.
WARNING:
Shock hazard. Disconnect from live voltage prior to opening enclosure door.
• Confirmthatpowertotheunithasbeenshutoff.
• Opentheenclosuredoor.
• FeedtheendoftheTraceTekLeaderCable(orJumperCable)throughtheglandplatebr
adapter/bushing into the enclosure.
• Removethesensorcableplugcn from the socket on the sensor interface board 9.
• Connectthefourcolor-codedwirestotheSensorInterfaceplug.
Important: Observe the color coding. If wires are not connected to the proper terminals, the
leak detection system cannot operate properly.
• InsertthesensingcableplugbackintothesocketontheSensorInterfaceBoard9.
SENSOR CABLE
PL
Black
Yellow
Green
Red

Install zener barrier, if applicable.
WhensensingcablewillbelocatedinClassI,Division1(Zone0orZone1inEurope)hazardous
locations, approval agencies require that the sensing cable be protected with a zener barrier
between the sensing cable and the TTDM-128 module. Contact TraceTek to select the proper zener
barrier.
Wheninstallingazenerbarrier,wireitinaccordancewiththeinstructionsprovidedwiththekit.
Class I, Division 1
(Zone 0 or Zone 1 in Europe)
Hazardous Location
Ordinary Area
Zener
barrier
Leader or jumper cable
Jumper cable
Sensing cable
TTDM-128
TRACETEK

9 / 12THERMAL BUILDING SOLUTIONS EN-TraceTekTTDM128-IM-H5734104/16
CONNECTING THE TRACETEK NETWORK
If the TTDM-128 will be used as the network master in a TraceTek network, follow these
instructions to connect the communication wiring.
IMPORTANT:SomeTraceTeknetworkconfigurationswillrequiredifferentconnectionsforthe
communication wiring. Please refer to the TTDM-128 User Manual (H56853) for further details.
Prepare communication cable.
Ensure that the communication cable has been installed and tested.
Make connections.
WARNING:
Shock hazard. Disconnect from live voltage prior to opening enclosure door.
• Confirmthatpowertotheunithasbeenshutoff.
• Opentheenclosuredoor.
• Feedtheendofthecommunicationcablethroughtheglandplatebr adapter/bushing into the
enclosure.
• RemovetheJ10cableplugco from the socket.
• Connectthepositivewiretoterminal3(485+)andthenegativewiretoterminal4(485–)ofthe
J10cableplug.
• Connecttheshieldwiretotheroundlugbq.
IMPORTANT: Observe the polarity. If wires are not connected to the proper terminals, the leak
detection system cannot operate properly.
• InserttheJ10cableplugbackintothesocketco.
• PlacethepositiveandnegativewireintheFerriteclamp.Donotplacetheshieldwireinsidethe
clamp. Close the clamp by securing its latch to the snaps.
PL
RS-485 cable to next TraceTek module.

RS-485 (–)
RS-485 (+)
SHIELD

Ferrite clamp

10 / 12 THERMAL BUILDING SOLUTIONS
EN-TraceTekTTDM128-IM-H5734104/16
CONNECTING TO A HOST COMPUTER
Thereare3waystoconnecttheTTDM-128toahostcomputer:hard-wiredRS-232,hard-wired
RS-485,orstandardmodularRS-232cable.Forpermanentinstallations,thehard-wiredmethodis
recommended(eitherRS-232orRS-485asnecessary).ThemodularRS-232cableshouldbeused
only for temporary connections by trained technicians.
Make connections.
WARNING:
Shock hazard. Disconnect from live voltage prior to opening enclosure door.
• Confirmthatpowertotheunithasbeenshutoff.
• Opentheenclosuredoor.
• Feedtheendofthecommunicationcablethroughtheglandplatebr adapter/bushing into the
enclosure.
• RemovetheJ13cableplugcm from the socket.
ForRS-232connection:
• ConnecttheRX,TX,RTS,CTSandDGNDwiretoterminals5,6,7,8and10respectively.
• Setthehostportselectorswitchcq on the User Interface board 7totheRS232position.
ForRS-485connection:
• Connectthepositivewiretoterminal5(RX/A)andthenegativewiretoterminal6(TX/B).
 Setthehostportselectorswitchcq on the User Interface board 7totheRS485position.
• Connecttheshieldwiretothegroundinglugbq.
• InserttheJ13cableplugbackintothesocketcm.
PL
RS-232
cable
RS-485
cable
DGND
CTS
RTS
TX
RX
PL
RS-485 (–)
RS-485 (+)
SHIELD
SHIELD
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