SMART TEMP SMT-710 Thermostat with Zone Control Instruction Manual

: June 13, 2024
: SMART TEMP

Table of Contents

SMT-710 Thermostat with Zone Control
Product Information: SMT-710 Manual Thermostat with Zone
Turning your Thermostat On and Off
Controlling the Fan Speed and Mode
Setting your Desired Temperature
Limit Control
Zone Control

SMT-710 Thermostat with Zone Control

Product Information: SMT-710 Manual Thermostat with Zone

Control

Thank you for purchasing the Smart Temp SMT-710 Zone Control
Thermostat. This thermostat offers several features to help you
control and maintain the temperature in your home or office.

Turning your Thermostat On and Off

The mode selection is located in the lower left corner of the
display. Depending on how your installer has set up your SMT-710,
you have the option to select On and Off with a single set point or
individual heating and cooling modes with separate set points. If
the text “Heat” or “Cool” is flashing, it means that your SMT-710
is requesting that function from your air conditioning system.
There may also be a maximum heating and cooling set point limit
imposed, and you will be notified when this limit is reached.

Controlling the Fan Speed and Mode

The SMT-710 can control a single or multi-speed fan system,
which will be set up by your installer to match your air
conditioning system’s capability. You can select between Fan On
Mode or Fan Auto Mode. In Fan On Mode, the fan will run
continuously regardless of heating or cooling. In Fan Auto Mode,
the fan will turn on and off with the heating and cooling. If you
have a multi-speed fan system, you can manually select between Low,
Medium, and High fan speeds, or let the SMT-710 automatically
choose the best fan speed based on the room temperature.

Setting your Desired Temperature

The display shows your current room temperature along with Up
and Down buttons. By tapping these buttons, you can adjust the set
temperature for the selected mode. In Heat only mode, you can
adjust the Heat set point; in Cool only mode, you can adjust the
Cool set point; and in Auto or On mode, you can adjust the single
set point. Please note that in single set point mode, there is a
Dead Band defined by your installer, where heating or cooling is
not needed.

Limit Control

Your installer may have set a temperature control limit, which
restricts the range of temperature adjustment. If the limit is
reached, the display will show a message and emit a few beeps to
notify you.

Zone Control

The SMT-710 has the capability to manage two independent zones:
Zone 1 (the location of the wall controller) and Zone 2. If a zone
is selected, conditioned air will be sent to that area, and the air
conditioning will turn on and off to maintain the temperature in
that zone. If the SMT-710 does not have the optional Zone 2
temperature sensor fitted, it will assume that both Zone 1 and Zone
2 have the same temperature as measured by the wall controller in
Zone 1.

For more detailed instructions and information, please refer to
the complete user manual.

SMT-710 Manual Thermostat with Zone Control

Thank you for the purchase of the Smart Temp SMT-710 Zone Control Thermostat.
Please take the time to read and understand this manual so that you may take advantage of the many features this thermostat may offer

Turning your Thermostat On and OFF.

The lower left corner of the display controls the mode selection, depending

OFF ON AUTO HEAT COOL

on how your installer has set your SMT-710 up you will

be given the option of selecting On and Off with a single

set point (with a preset differential between the heating

and cooling) or selecting individual heating and cooling

modes, each with individual heating and cooling set

points.

If the text Heat or Cool is flashing then your SMT-710 is requesting that function from your air conditioning system.

If set for Heat and Cool mode, a maximum heating and cooling set point limit may be imposed. Text and a chirp will be given when this limit is reached. Fan ONVentilation
Low Medium High Auto
Controlling the Fan Speed and Mode. The SMT-710 can control a single or multi speed fan system. This capability will be setup by your installer to match the capability of the Air Conditioning system that it is controlling.

Fan Mode Press and hold the fan button to select Fan On Mode -in 3 fan speed mode or tap in single fan speed mode. In this mode the fan will run continuously regardless of the heating or cooling. Press and hold (or tap) again to return to Fan Auto mode where the fan will turn on and off with the heating and cooling.

Fan Speed The SMT-710 can also control multi-fan speed systems where you can either manually select between Low, Medium and High fan speed or let the SMT-710 automatically select the best fan speed based on how far the room temperature is from the set temperature. Simply tap the fan button to cycle through all available speeds if this function is enabled.

Setting your desired Temperature. The display will show you your current room temperature along with some Up/Down buttons. When you tap either of the up down button the display will change and show you the set temperature for the currently selected mode, being the Heat set point in Heat only mode and the Cool set point in Cool only mode or the single set point in Auto or On mode.
(Note, In single set point mode your installer will have defined a “Dead Band” of a few degree either side of the internal heat and cool set points where the heating or cooling is not needed.

Limit Control Your installer many have set a temperature control limit, where the range of temperature adjustment may be restricted. Text showing the limit has been reached will be shown on the display accompanied by a few beeps.

Zone Control One of the strengths of the SMT-710 is

Zone 1 SELECTED

its ability to manage two independent zones. These

zones are identified as either Zone 1 (The location of

the wall Controller) and Zone 2. If the zone is shown as

“selected” then conditioned air will be sent to this area

and the air conditioning will turn on and off to maintain

this zones temperature.

Single Sensor Zone Control If the SMT-710 does not have the optional Zone 2 temperature sensor fitted, then it will assume both Zone 1 temperature and Zone 2 temperature is the same – as measured by the wall controller in Zone 1. The air conditioning will turn on and off to maintain the current set point.

Twin Sensor Zone Control When the SMT-710 detects the Zone 2 sensor has been installed, it will control both Zone 1 and Zone 2 to ensure both zones temperature is maintained to the desired value. This may mean that conditioned air may automatically be sent to Zone 2 only (for example) if zone 2 needs additional heating or cooling to reach the desired set point. The Air Conditioning system will treat both zones Independently.

Room Temperature Display – Twin sensor The SMT-710 will display the Zone 1 temperature when ever Zone 1 only is selected or if Zone 1 and Zone 2 is selected. If Zone 2 only is selected the SMT-710 will display Zone 2 temperature.
Note, If at anytime you wish to see the Zone 2 temperature, press and hold the Zone 2 button for 2 seconds and the display will go blank except for the Zone 2 button and the room temperature as measured in Zone 2. The display will return to normal after 4 seconds.

Ver 2.2
Smart Temp
Unit 20 / 1488 Ferntree Gully Rd Knoxfield Vic Aust 3180
www.smarttemp.com.au www.thermostat.com.au +61 3 97630094 info@smarttemp.com.au

Installation Wiring the wall controller to the unit control card requires 4 wires, 24V Active, 24V common Data A and Data B. The wall controller and the unit control card are labelled identically, being R C A B. 4 wires need be used of 0.2mm diameter ideally screened but not essential for short runs. An external 24VAC power supply should be used and connected to either the wall controller or Unit Control Card (12V DC can also be used, +12 to R and -12 to C).
The SZ-PS power supply is suitable.

SMT-710 Wall Controller

Aux In Data Power

TT BA

SZ-PS
24VAC CR

Typical 2 Stage Heat Pump – 3 Fan Speeds

Relay Common

Rly Com

Low Fan

G1

Fan

Medium Fan

G2

HighFan

G3

Comp / Cool Normally Closed

Y1 NC

Comp / Cool Normally Open

Y1
Cool

Comp

Heat / R-Valve Normally Closed

WNC1

Heat / R-Valve Normally Open

W1 Heat

R/Valve

Assignable Relay

Ass Rly

Zone 1 Damper Close

Z1 NC

Zone 1 Damper Open

Z1 NO

Zone Common

Zone Com

Zone 2 Damper Close

Z2 NC

Zone 2 Damper Open

Z2 NO

Control Active Low Fan Medium Fan High Fan Comp 1 Comp 2 Reversing Valve
DIP 1 On (3 Fan Speeds) DIP 2 On (Heat Pump) DIP 3 Off for RV in cool (O) DIP 3 On for RV in Heat (B) DIP 4 to 8 Installer Choice Set Installer Option 13 = 1

Flash with Data

Zone 2 Sensor

Heat

R C A B 0 H C F 0 T T Power

Ass Ass In+ In-

Cool Fan

Z1 Z2

0-10V Heat Cool Fan

Power Data

Unit Control Card

Zone Common Z2 Sensor Zone 2 Damper

Zone 1 Damper Aux Input

Comp / Cool Heat / R-Valve Assignable Relay

Relay Common Fan

G1G2 G3 Y1 W1 Rly
Com Fan

Y1

W1

Ass Zone 1 Zone Zone 2

NC NC Rly Cool Comp

Heat R/Valve

NC

NO

Com

NC

NO

Fan
O-10V Outputs

Terminal Designation

R 24 VAC Active (12V+) C 24 VAC Common (12v-) A Data A B Data B

0 0V / Common

H 0-10V Heat

C 0-10V Cool

F 0-10V Fan

0 0V / Common

Ass In+

Assignable Input

Ass In-

0V / Common

T Zone 2 Temp Sensor

Rly Com

Relay Common

G1 Low Fan (or single fan)

G2 Medium Fan

G3 HighFan

Y1 NC

Comp / Cool Normally Closed

Y1
Cool

Comp / Cool Normally Open

Comp

W1 NC

Heat / R-Valve Normally Closed

W1 Heat

Heat / R-Valve Normally Open

R/Valve

Ass Rly

Assignable Relay

Z1 NC

Zone 1 Damper Close

Z1 NO

Zone 1 Damper Open

Zone Com

Zone Common

Z2 NC

Zone 2 Damper Close

Z2 NO

Zone 2 Damper Open

Dip Switch Settings (Sw 1, 2,3 &5 on by Default)

Switch Function

1

Fan Speeds

2 Equipment Type

3

HP/HC Mode

4

Not Used

5

Comp Delay

6

Not Used

7 Ventilation Mode

8

Zone Enable

Off

On

Single Speed 3 Speed

Heat Cool

Heat Pump

Gas Heat / O Electric Heat / B

Off

On – 5 Min

Off

On

Off

On

Typical 2 Heat 1 Cool 1 Fan Speed

Relay Common

Rly Com

Low Fan

G1

Fan

Medium Fan

G2

HighFan

G3

Comp / Cool Normally Closed

Y1 NC

Comp / Cool Normally Open

Y1
Cool

Comp

Heat / R-Valve Normally Closed

WNC1

Heat / R-Valve Normally Open

W1 Heat

R/Valve

Assignable Relay

Ass Rly

Zone 1 Damper Close

Z1 NC

Zone 1 Damper Open

Z1 NO

Zone Common

Zone Com

Zone 2 Damper Close

Z2 NC

Zone 2 Damper Open

Z2 NO

Control Active Fan Cool Heat Stage 1 Heat stage 2
DIP 1 Off (1 Fan Speed) DIP 2 OFF (Heat Cool DIP 3 Off for Gas Heat DIP 3 On for Electric Heat DIP 4 to 8 Installer Choice Set Installer Option 13 = 2

Typical Heat / Cool Valve Wiring

24V Power Supply

R 24 VAC Active C 24 VAC Common
A Data A B Data B
0V / Common 0

O-10V Outputs

0-10V Heat H

0-10V Cool C

0-10V Fan F

0V / Common 0

Assignable Input

Ass In+

0V / Common

Ass In-

T Zone 2 Temp Sensor

1

2

Heat Valve

3

1

2

Cool Valve

3

(typical Belimo LMU-24SR motor)

Note. Switch 3 function is based on the position of switch 2. Dip 2 OFF (Heat – Cool Mode) DIP 3 controls the fan mode (Electric or Gas Heat Fan). DIP 2 ON (Heat Pump Mode) Dip 3 controls the reversing valve logic (Energise Cool O or Heat B)
Please contact Smart Temp or an authorised agent for additional support information if required support@smarttemp.com.au

Installer Options Menu
The SMT-710 has a comprehensive list of options that can be adjusted by the installer to better tune the performance of the SMT-710 to the needs of the client.
To Enter the Installer Menu, with the mode OFF, Press and Hold the centre of the LCD. After some seconds it will show the digits “15” Use the up (or down) button to adjust this to “21” or the new PIN if changed from default.
Navigate forward or backwards through the installer menu with the lower left and right buttons, adjust the current value with the up / down button.
To exit the installer menu press and hold the lower right button for 3 seconds. (Do not remove power for 30 seconds to save changes.)
Option 0 Installer entry PIN 0-99 (Default 21) Option 1 Buttons shown 0 – Both Mode and Fan button shown (Default) 1 – Show mode but hide fan 2 – Show fan but hide mode* 3 – Both mode and fan buttons hidden. Option 2 Permitted User Modes 0 – Off / Auto 1 – Off / Auto / Heat / Cool 2 – Off / Heat / Cool (Default) 3 – Off / Heat 4 – Off /Cool 5 – Off / Auto (display current heat or cool mode) Option 3 Room / Set Display 0 – Show room and set temp (Default) 1 – Show set temp only Option 4 Display Format 0 – Deg C (Default) 1 – Deg F Option 5 C/F button shown on the LCD 0 – Off (Default) 1 – Show swap C/F button on LCD Option 6 Heat Temp High Set Limit 5 to 50 C (Default 35) Option 7 Cool Temp Low Set Limit 5 to 50 C (Default 15) Option 8 Dead Band 0 to 5.0C (Default 0.5c) Option 9 Heat Relay Span 0.5 to 10.0c (Default 1.0c) Option 10 Cool Relay Span 0.5 to 10.0c (Default 1.0c) Option 11 Fan Relay Span 0.5 to 10.0c (Default 1.0c) Option 12 Fan Purge 0 – Off (Default) 1 -Purge 1 minute 2 – Purge 3 minutes 3 – Purge 5 minutes 4 – Purge 10 minutes 5 – Purge Heat mode 1 minute 6 – Purge Heat mode 3 minute 7 – Purge Heat mode 5 minute 8 – Purge Heat mode 10 minute 9 – Purge Cool mode 1 minute 10 – Purge Cool mode 3 minute 11 – Purge Cool mode 5 minute 12 – Purge Cool mode 10 minute Option 13 Aux Relay Function 0 – Close on fault (Default) 1 – Y2 (in HP or HC mode) 2 – W2 (In Heat cool mode) 3 – Spill – Opens when all zones are closed (when option 38 = 0) Option 14 0-10V Heat Relay Span 0.5 to 10.0c (Default 1.0c) Option 15 0-10V Heat Interval PI 10 – 300 Seconds (60 Seconds default) Option 16 0-10V Heat Direction 0 – 0-10V (valve opens as more heat required – Forward Acting) (Default) 1 – 10-0V (valve closes as more heat required – Reverse Acting) Option 17 0-10V Heat Minimum Voltage 0-10v 0.1 steps (Default 0v) Option 18 0-10V Cool Relay Span 0.5 to 10.0c (Default 1.0c) Option 19 0-10V Cool Interval PI 10 – 300 Seconds (60 Seconds default) Option 20 0-10V Cool Direction 0 – 0-10V (valve opens as more heat required – Forward Acting) (Default) 1 – 10-0V (valve closes as more heat required – Reverse Acting) Option 21 0-10V Cool Minimum Voltage 0-10v 0.1 steps (Default 0v) Option 22 0-10Fan Span 0.5 to 10.0c (Default 3.0c)

Option 23 0-10V Fan Interval PI

10 – 300 Seconds (60 Seconds default)

Option 24 0-10V Fan Direction

0 – 0-10V (valve opens as more heat required – Forward Acting)

(Default)

1 – 10-0V (valve closes as more heat required – Reverse Acting)

Option 25 0-10V Fan Minimum Voltage

0-10v 0.1 steps (Default 0v)

Option 26 0-10V Fan Maximum Voltage

0-10v 0.1 steps (Default 10v)

Option 27 Auto Off Timer

0 – Auto Off Timer disabled (Default)

1 to 10 hours.

Option 28 Un=Occupied Heat Set point

0 – Off (Default 15)

5-35C

Option 29 Un=Occupied Cool Set point

0 – Off (Default 27)

5-35C

Option 30 Un=Occupied Fan Speed / Mode (1 or 3 speed)

1 – Low (Auto) (Default)

1 – Auto 1 speed fan (Default)

2 – Medium (Auto)

3 – High(Auto)

4 – Low (On)

4 – On 1 speed fan

5 – Medium (On)

6 – High(On)

Option 31 Back light

0 – On with button press (Default)

1 – Always high

2 – Low in standby & high when touched

Option 32 TT Terminal Functions

0 – Remote sensor (replaces on board sensor) (Default)

1 – Average remote sensor with onboard sensor

2 – Force un-occupied

3 – Fault

Option 33 Assignable Input Function

0 – Remote sensor (replaces on board sensor) (Default)

1 – Average remote sensor with onboard sensor

2 – Force un-occupied

3 – Fault

4 – Force Off

5 – Warm Start (HP mode only – delays indoor fan till 25c or 30 seconds)

Option 34 Temperature Sensors Sensor speed of response

0 – Very fast

1 – Fast

2 – Normal

3 – Slow (Default)

4 – Very Slow

Option 35 TT Temperature Calibration

+/- 10c (Default 0.0c)

Option 36 Wall controller Temperature Calibration

+/- 10c (Default 0.0c)

Option 37 Zone 2 Temperature Calibration

+/- 10c (Default 0.0c) Option 38 Zone Management (see Zone Logic – next page)

0 – NO default zone. Both zones can be closed

1 – Zone 1 default. (zone 1 will auto turn on to keep a zone open)

2 – Zone 2 default (zone 2 will auto turn on to keep a zone open)

3 – No default – just cant turn off last zone (Default)

Option 39 Fault Input action

0 – Only display Fault on LCD – no action required

1 – Shut down HVAC – No display on LCD

2 – Shut down HVAC and display on LCD (Default)

3 – Shut down HVAC after 15 seconds – no display on LCD

4 – Shut down HVAC after 15 seconds – display on LCD

Option 40 Modbus Mode

0 – SP7 communication (Inc temperzone & BMS )(Default)

1 -Intesis Module

2 – SMT-UI

Option 41 Modbus Address (only if Option 34 = 3)

1 – 255 (Default 7)

Option 42 Modbus Baud (only if Option 34 = 3)

0 – 4800

1 – 9600

2 – 19200 (Default )

Option 43 Modbus Parity (only if Option 34 = 3)

0 – None

1 – Odd

2 – Even (Default)

Option 44 Dec x 10 for Intensis or SMT-UI-DK Module

0 – Disable

1 – Enable

R Factory reset

Set to value to 1 (one) and exit to initiate

Specifications subject to change without notice

Zone Logic
The SMT-710 can control 2 zones in several ways depending on the needs of the project and whether the second zone (Zone 2 has a temperature sensor fitted.
You must enable Zone control by turning DIP 8 to the on position while the unit Control card is NOT powered.
The Zone 2 temperature sensor is automatically detected by the SMT-710 system. The Zone 2 temperature sensor is wired to the Z2 temperature sensor input on the Unit Card.
Option 1 – Zone 2 sensor is NOT installed Zone 1 and zone 2 is assumed to be the same temperature and the heating and cooling is controlled based on the set temperature and the temperature measured by the wall controller ( Zone 1 temperature). The zone selection switches simply open and close the various zone dampers. This sends conditioned air to whatever zone (s) are selected.
Option 2 – Zone 2 sensor is installed Zone 1 and Zone 2 temperature are individually measured by the SMT-710 and the Zone temperatures will be individually maintained to the temperature as set on the wall controller.
The Zone 1 and 2 damper(s) will automatically open or close and the Air Conditioning will be controlled to ensure both zone temperatures are maintained.
Zone Limit Control The SMT-710 can be set to ensure that at least one zone is open at all times or permit both zones to be closed if a common zone is available for example. Zone control management has several options as shown in the installer option menu, option 38.
Temperature Display The SMT-710 will, by default display Zone 1 temperature. If you have the zone 2 temperature sensor fitted and only zone 2 selected, then the wall controller will display the zone 2 temperature.
If at any time you wish to see zone 2 temperature press and hold the zone 2 select button for 2 seconds and the Zone 2 temperature will be displayed for 4 seconds. If the zone 2 sensor is not fitted the SMT-710 wall controller will display Dash Dash.
Assignable Input
The SMT-710 has a universal input that can be assigned one of several functions. See Installer option 33 over.
This input will accept a VOLT FREE dry contact input a standard Smart Temp 10K NTC thermistor input. There are several options available to the assignable Input as detailed in the installer menu option number 33.
Remote Input (Wall Controller T T Terminals) The SMT-710 Wall Controller has a remote Aux input with options defined in the Installer menu option 32. This input will accept a VOLT FREE dry contact or a standard Smart Temp 10K NTC sensor
Indicator LEDS The SMT-710 UCC (Unit Control Card) has several LEDS that show Power is available (blinking when receiving data), whether the card is calling for heating, cooling or fan and what Zone is open. These indicator LEDS should be the first thing considered when diagnosing any faults.

Typical Zone Sensor Wiring Zone 2 Sensor
RS1-02

R C A B T T Power

0 H C F 0 Ass Ass
In+ In- O-10V Outputs

Heat Cool Fan

Z1 Z2

Power Data
0-10V Heat Cool Fan
Aux Input Z2 Sensor

SMT-710 Control Card

Typical Zone Damper Wiring

Zone 1 Damper Close Zone 1 Damper Open
Zone Common Zone 2 Damper Close Zone 2 Damper Open

Power Supply
Z1 NC Z1 NO Zone Com Z2 NC Z2 NO

Belimo Damper
1 2 3
1 2 3

Typical Auxiliary Inputs