Robertshaw Smart Sense Series User manual

www.robertshaw.com
©2015 Robertshaw 2/15 – 352-00193-001
SMART 2000
Digital Programmable Thermostat
Installation Manual

IMPORTANT SAFETY INFORMATION
WARNING: ELECTRICAL SHOCK HAZARD – Turn off power at the main
power source by unscrewing fuse or switching circuit breaker
to the OFF position before installing, removing, or cleaning
this thermostat.
WARNING: FIRE AND ELECTRIC SHOCK HAZARD – This device should be
installed by a qualified service technician with due regard
for safety as improper installation could result in a fire and
electric shock hazard.
WARNING: FIRE AND ELECTRICAL SHOCK HAZARD – This is a 24V AC
low-voltage thermostat. Do not install on voltages higher than
30V AC.
• Do not switch system to cool if the temperature is below 50°F (10°C). This can
damage your cooling system and may cause personal injury.
• Do not short (jumper) across terminals on the gas valve or at the system control
to test installation. This will damage the thermostat and void the warranty.
• Do not connect ground to any terminal in this unit.
• All wiring must conform to local and national building and electrical codes and
ordinances.
• Use this thermostat only as described in the manual.

3
TABLE OF CONTENTS
Installation 6
MounngtheSMART2000Thermostat 7
PlanYourInstallaon 9
Wiring Diagrams 15
Before Applying Power 20
Commissioning 20
Control Logic 22
AdvancedInstallerSettings 23
Entering the Advanced Installer Menu 23
Using the Advanced Installer Menu 24
Funcons 24
UsingRemoteTemperatureSensors 39
OutsideAirSensorWiring 41
RemoteAirTemperatureSensorWiring 42
AveragingTemperatureSensors 42
RemoteON/OFFFuncons 43

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Using the Occupancy Mode 43
SupplyAirTemperatureMonitoring 44
Advanced Functions 44
ModBusCommunicaons 44
FactoryTestMode 47
HighandLowBalancePoints 47
SengUptheHeatandCoolOFFFuncons 48
AdapveRecovery 48
PowerUpTheSystem 49
Specifications 52
Troubleshooting 54
One Year Limited Warranty 59

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Thisdocumentisnottypicallylewiththeuserasitcontainsinformaonon
sengvalues.Ifthesearenotcorrectlyset,theymaydamagetheheang,
coolingoraircondioningsystemorseriouslyaectitsperformanceandenergy
consumpon.
Pleasereadthisinstruconmanualtounderstandtheinstallaon,tesngand
commissioning process.
This manual is to be used with the supplied User Manual.
Greatcarehasbeentakeninthepreparaonofthismanual.Uni-Line®takes
no responsibility for errors or omissions contained in this document. It is the
responsibilityoftheusertoensurethisthermostat,ortheequipmentconnected
toitisoperangtotheirrespecvespecicaonsandinasafemanner.
Uni-Linereservestherighttochangespecicaonswithoutpriornoce.

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INSTALLATION
Aswithanyheangand/oraircondioningproject,carefulinstallaonisthe
keytoasuccessfuloutcome.Timetakenduringthisinstallaonprocesswillbe
rewardedwithasasedcustomerandfewercall-backs.
ThestepsrequiredtoinstalltheSMART2000thermostatare:
1. Read and understand this manual and the User Manual.
2. Mount the back plate in a suitable location.
3. SettheeightDIPswitchestomatchtheneedoftheproject/user.
4. Connect wires to terminal blocks.
5. Wiretheoptionalremotetemperaturesensor(s)orswitchesifrequired.
6. Power up the heating and/or air conditioning system.
7. Settheinstallersoftwareoptions(ifrequired).
8. Program and set up the thermostat. (The User Manual will assist with this).
9. Testtheheating,coolingandotherfunctions–Commissioning.

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Mounting the SMART 2000 Thermostat
IMPORTANT: TheSMART2000canonlybeasaccurateastheonboard
temperaturesensor,oritsoponalremotetemperaturesensor(s)
permit. The thermostat should be mounted in a location that is
typical of the ambient room temperature. Do not install it near the
floor,inadraft,behindadoor,oronanon-insulated,exteriorwall.
Installthethermostatawayfromexposuretosunlightandfourto
five feet (12.2 to 1.5 m) above the floor.
Figure 1
• Liftthecover(Figure1)onthehousingtoexposeaslotatthebottom.Takenotice
of the decorative cover hinge points and the connection between the two halves.
• Insert a screwdriver or coin into the slot and twist. This will separate the two
halves.

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• Continue to swing the top half upward. This will release the decorative cover
hinge and the tabs holding the top half in place.
• Pull the control wires through the large opening in the base plate.
• Position the base plate on the wall and attach it with appropriate fasteners
(Figure 2) (two screws with drywall anchors are supplied). The base plate should
be visibly level.
• Block any holes where wires are pulled through a wall opening. This will
prevent drafts from entering the back of the thermostat.
Figure 2
IfthisinstallaonwillbeusingModBuscontrolsorremotesensors,becertainto
includetheproperwirestomakethoseconnecons.

9
Plan Your Installation
ON
1 2
ON
1 2
DIP
5 63 4 7 8
+
Clock Battery
Switches 1 - 8
Switches for ModBus
End-Of-Line Resistor
Figure 3
Inaddiontothestandardthermostatwiring,theSMART2000has:
• Two groups of switches (DIP switches)
• ModBus communication terminals (leave OFF if communication errors occur)
• Two terminals for using remote sensors and contacts
• Battery for program clock back-up (lithium battery CR1220)

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Theswitchesmustbesetcorrectlyforeachsystemconguraon.Followthese
steps:
1. Review the settings in Table 1.
2. Read the switch descriptions.
3. Mark or write down the switch positions that you will use.
4. Inthefiguresthatfollow,findthewiringdiagramthataccuratelydescribes
yourequipment.
5. Reviewtheswitchsettingsnexttothewiringdiagram.Ifthereareany
differencesbetweenthatlistandyourselections,reviewyourlist.Becertain
you have the correct wiring diagram and choices for switch positions.
The ModBus and TT terminals will be described later in this manual.