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Installer Setup Menu
SMT-80 & SMT-80RF
The Installer options below relate to both the SMT-80 and SMT-80RF
versions except where noted.
NOTE - Changing the settings in this menu can seriously affect the
safe operation and function of your heating and cooling system. If
you are unsure about the functions of the settings in this menu then
it is strongly recommended that you don't adjust them.
To enter the Installer menu first press and hold the [Mode] and [Up]
button (simultaneously) on the controller for 5 seconds. The heating
and cooling (if running) will stop and the display will show "15".
Using the [Up] button, adjust this to read "21" or the previously set
PIN if changed from the factory default of "21".
Press the [Mode] button to enter the Installer menu
Pressing the [Fan/Light] button will move you forward through the
menu items. Pressing the [Mode] button will step you backwards
through the menu items. Use the [Up] and [Down] buttons to adjust
the currently displayed menu item.
To exit the installer menu, press and hold either the [Mode] or [Fan]
button for 5 seconds. No activity for 30 seconds will auto exit this
menu.
The Installer menu is dynamic. Functions not applicable will not be
shown in this menu. For example, if you set the SMT-80 or SMT-80RF
as a heat only thermostat, permitted modes and cooling set limit
items will not be shown.
Installer Settings (Default Values Shown in BOLD)
Fn
Thermostat Control Functions (HO)
These menu items define how the relays in the SMT-80 control the
Heating and Cooling system.
HO – Heating Only No Fan (No manual fan function)
HF – Heating with Fan Control (Manual fan available)
HE – Heating with Electric Fan
CO – Cool Only
HC – Heat Cool with Gas Fan
HCE – Heat Cool with Electric Fan
HPo- Heat Pump – Rev Valve in Cool
HPb – Heat Pump – Rev Valve in Heat
dC – Damper Control Mode
nn
Mode (Only Applies if Fn = Heat Cool or HP Mode) (nn)
This sets the modes than can be selected by the user
A – Auto Mode (Off – Heat – Cool – Auto – Off)
AO – Auto Only (Off – Auto – Off)
nn – Manual (Off – Heat – Cool – Off)
HL
Heat Limit (35⁰C)
Defines the highest permitted Heat setpoint
Range - Off / 0 to 50⁰C
CL
Cool Limit (15⁰C)
Defines the lowest permitted Cool setpoint
Range - Off /0 to 50⁰C⁰
SMT-80 and SMT-80 RF Manual – Version 1.0
© Smart Temp Australia. 2020
www.smarttemp.com.au +61 3 97630094
Sp
Span (1.0)
Sets the range difference between heating and cooling On/Off
points.
Range 0.3⁰C to 1.5⁰C
db
Deadband (1.0)
Defines how close the user can set the heating and cooling setpoints
to each other in Auto Mode.
Range 0.0 to 3.0⁰C
CA
Room Sensor Calibration (0.0)
Adjusts the accuracy of room temperature sensor.
Range -5.0 to +5.0
SS
Response Speed of temperature sensor (FSt)
Defines how fast the room sensor responds to temperature changes.
VS
Very Slow
S
Slow
Nor
Normal
FSt
Fast
VF
Very Fast
AOt
Auto Off Timer (0-Off)
If set, the SMT-80 will automatically turn "Off" once the countdown
timer has expired. (Note - "OFF" will flash on the SMT-80 LCD)
Range 0 (off) to 12 hours
Ct
Compressor Timer (Cooling or HP Mode Only) (On)
(This menu item not shown when thermostat function = dC)
Set the compressor 4 min anticyclic timer.
Off
On
tt
TT Terminals Function (RS)
(This menu item not shown when thermostat function = dC)
RS – Remote Sensor – Will Disable Onboard Sensor
AU – Average – Average Remote and Onboard Sensor
Ot – Used to Measure Outside Air Temperature
FO – Remote Off Function - Will Force SMT-80 Off
PIr – Wire a standard PIR security sensor to have automatic
occupancy detection. After 30 minutes of no movement
the SMT-80 will turn OFF
Note - "OFF" will flash on the SMT-80 LCD when FO or PIR function
is enabled.
dIS
Display units (C)
Sets Units of Display
C
F (Deg F Mode Activates 5⁰C Anti-Freeze Function)
Pin
Installer Menu PIN (21)
Permits you change the required PIN to enter the installer menu.
Range 0-99 (Do not forget any new pin entered)
RsT
Factory Reset
Change 0 to 1 then exit installer menu to initiate factory reset.
Caution – this will also change how the SMT-80 controls the Heating
and /or Cooling system.
www.thermostat.com.au
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