Installation Manual
Version 1.0
Smart Temp
Apollo
P/n 44-800
TABLE OF CONTENTS
Introduction .........................................................................................................6
Getting started ....................................................................................................7
Installing the thermostat ....................................................................................8
Disassembly ...........................................................................................8
Thermostat location ...............................................................................8
Mounting the subbase .........................................................................8, 9
Terminal designations ..........................................................................10
Installing the batteries ......................................................................................11
Setting the system switches .....................................................................12, 13
1
System switch functions ...................................................................13
Typical wiring diagrams ...............................................................14-24
Heat Only (Gas)......................................................................14
Heat Only (Electric).................................................................15
Cool Only.................................................................................16
2 or 3 Cool ...............................................................................17
1 Heat / 1 Cool .......................................................................18
2 Heat / 1 Cool........................................................................19
1 Heat / 2 Cool........................................................................20
1 Heat / 1 Cool Heat Pump.....................................................21
2 Heat / 1 Cool Heat Pump.....................................................22
2 Heat / 2 Cool Heat Pump.....................................................23
2 Wire - Gas Heating...............................................................24
TABLE OF CONTENTS
2
Installer setup menu ...................................................................................25-46
Entering the menu ...............................................................................25
Selecting programmable or non-programmable operation ..................26
Selecting program days (programmable mode)...................................27
Selecting programmable fan option.....................................................28
Selecting mode of operation................................................................29
Touchscreen lock options.....................................................................30
Selecting the cooling setpoint limit.......................................................31
Selecting the heating sepoint limit........................................................32
Selecting the temperature display.........................................................33
Selecting time format............................................................................34
Selecting setpoint display option..........................................................35
Selecting back light option...................................................................36
TABLE OF CONTENTS
3
Installer setup menu (Continued)
Selecting Adaptive Recovery................................................................37
Filter reminder......................................................................................38
Selecting the heating and cooling differential.......................................39
Internal sensor calibration....................................................................40
Remote sensor options........................................................................41
Assigning the ‘A’ relay..........................................................................42
Selecting low balance point.................................................................43
Selecting high balance point................................................................44
Audible beep option.............................................................................45
Factory reset........................................................................................46
Remote sensor installation.........................................................................47-51
Remote sensors..................................................................................................47
TABLE OF CONTENTS
4
Remote sensor installation (Continued)
Indoor sensor wiring ....................................................................................47-48
Using multiple sensors for temperature averaging.............................................49
Outdoor sensor wiring...................................................................................50-51
Temperature sensor calibration chart.................................................................51
Testing .........................................................................................................52-55
Testing fan operation...........................................................................................52
Testing conventional heating and cooling operation.....................................52-53
Testing conventional heat pump operation........................................................53
Testing fossil fuel operation...........................................................................53-54
Testing low balance point (heat pump or fossil fuel)...........................................54
Testing high balance point (heat pump or fossil fuel).........................................55
Adaptive recovery ............................................................................................55
Basic troubleshooting ................................................................................56-58
Specifications ...................................................................................................59
TABLE OF CONTENTS
5
The Smart Temp 44-800 “Apollo” is a feature-rich touchscreen thermostat that can
be battery powered or hardwired to the HVAC equipment. Using a common sense
approach to the installation will ensure this product is installed properly and to the
customer’s satisfaction. Please take time to read and understand this manual so
that installation and testing is performed in an efficient manner.
This manual is to be used in conjunction with the supplied User Manual.
Although great care has been taken in the preparation of this manual, Smart
Temp Aust P/L takes no responsibility for errors or omissions contained
herein. It is the responsibility of the installer to ensure that this thermostat
and the equipment connected to it operate in a safe and efficient manner.
Due to ongoing product improvements, Smart Temp reserves the right to change the
specifications of the 44-800 thermostat or its components without notice.
All rights reserved.
© Smart Temp Australia P/L.
Intellectual rights apply.
INTRODUCTION
6
As with any HVAC project, careful installation is the key to a successful outcome.
Time taken during the installation process will be rewarded with fewer call-backs.
The steps required to install the 44-800 thermostat are as follows:
1. Read and understand this Installation Manual and Thermostat User Manual.
2. Mount and wire the subbase
3. Install the batteries
4. Set the 4 system switches to match the equipment application.
5. Wire optional remote temperature sensor(s).
6. Power the thermostat.
7. Set the Advanced Installer settings.
8. Test the thermostat.
GETTING STARTED
7
DISASSEMBLY
There are two release slots located on the bottom of the thermostat. Gently push the flat blade
of a small screwdriver into one slot at a time and pry upward until the catch disengages.
Carefully swing the thermostat upward and away from the subbase. (Figure 1)
THERMOSTAT LOCATION
The 44-800 should be installed in a location that
represents the ambient space temperature. Do not
install the thermostat in an area where drafts are
present, near the floor, behind doors or on an external
wall. Avoid placing the thermostat in areas where the
air movement is limited, affected by direct sunlight or
other areas not typical of the temperature in the space.
MOUNTING THE SUBBASE
When mounting the 44-800 subbase, be aware that
drafts may travel down wall cavities and enter the back
of the thermostat through the control wire hole in
INSTALLING THE THERMOSTAT
FIGURE 1
8
the wall. It is important to seal the hole to prevent any drafts that might affect the internal
temperature sensor. Pull the control wires through the large opening in the thermostat
subbase. Next, level and mount the subbase on the wall using the supplied anchors and
screws. (Figure 2)
Do not over tighten the mounting screws as the subbase may warp causing the
improper seating of the thermostat
connecting pins to the terminal blocks.
Use a properly sized screwdriver and
back each screw terminal out (counter
clockwise) before landing each wire to its
dedicated terminal. Do not over tighten
the terminal screws.
Check to ensure that all wires are landed
correctly and dressed properly to prevent
any shorts.
Refer to Typical System Wiring Diagrams
in this manual for proper wiring.
FIGURE 2
Out SC In A W
Y G
Com
R
C
Smart Temp Aust P/L
www.thermostat.com.au
WIRE
ACCESS
HOLE
BATTERY
COMPARTMENT
MOUNTING HOLES
MOUNTING
HOLE
MOUNTING HOLES
INSTALLING THE THERMOSTAT
9
TERMINAL DESIGNATIONS
Based on the 44-800 slide switch and installer option configurations, some terminals have
multiple output functions.
TERMINAL DESIGNATION
Outside Outdoor Sensor
Sensor Common Sensor Common
Inside Indoor Sensor
A W2, Y2, Compressor 2, Aux, EH
W W1, Y3, Reversing Valve
Y Y1, Compressor 1
R 24 Volt (Hot)
C 24 Volt (Common)
INSTALLING THE THERMOSTAT
10
The 44-800 comes with two AAA batteries. Insert the batteries as illustrated for primary or
backup power. Even if the thermostat is hardwired, battery backup is essential to maintain
the real-time clock in the event of a power failure. All other memory is non-volatile in the
event of battery or primary power loss. (Figure 3)
FIGURE 3
Out SC In A W
Y G
Com
R
C
Smart Temp Australia P/L
www.thermostat.com.au
INSTALLING THE BATTERIES
11
The 44-800 contains a set of four system switches located on the thermostat printed circuit
board. (Figure 4) The switches are used to match the thermostat with the HVAC system
requirements. Refer to the system switch functions on the next page to properly configure the
thermostat.
FIGURE 4
1 2 3 4
ON
SYSTEM SWITCHES
SETTING THE SYSTEM SWITCHES
. . . . .
. . . .
12
SW 1 - Equipment Type Switch 1 sets the equipment type. For heat / cool
equipment, set the switch to the OFF position
(factory default). For heat pump equipment, set
switch 1 to the ON position.
SW 2 - Fan or Reversing Valve Heat Cool Logic (SW 1OFF).
For gas systems, set the switch 2 to the OFF position
For electric heat systems, set switch 2 to the ON position.
Heat Pump Logic (SW 1 ON).
For ‘O’ reversing valve, set switch 2 to the OFF position
For ‘B’ reversing valve,
set switch 2 to the ON position.
SW 3 - Short Cycle Timer For 4 minutes short cycle protection, set switch 3 to
the OFF position (factory default). For no short
cycle protection, set switch 3 to the ON position.
SW 4 - Fossil Fuel Mode This is a USA requirement - leave OFF in Australia
For conventional heat pump equipment,
set switch 4 to the OFF position (factory default).
For fossil fuel equipment, set switch 4 to the ON
position.
SYSTEM SWITCH FUNCTIONS
13
SC
In
A
Y G
R
Com
C
HEAT 1
RELAY
FAN 1
RELAY
LINE
24 V
W
Out
HEAT ONLY (Gas)
OPTIONAL
REMOTE SENSOR
TERMINALS
Switch Settings
Sw1 = OFF (Heat / Cool)
Sw2 = OFF (Equipment controls fan)
Sw3 = OFF (No affect on setup)
Sw4 = OFF (Leave OFF)
In Installer Menu, set 4Fn = H (Heat Only)
TYPICAL SYSTEM WIRING DIAGRAMS
THERMOSTAT
EQUIPMENT
Factory Link
24C Optional
Fan
Optional
OUTDOOR
SENSOR
INDOOR
SENSOR
14
HEAT ONLY (Electric)
Switch Settings
Sw1 = OFF (Heat / Cool)
Sw2 = ON (Thermostat controls fan)
Sw3 = OFF (No affect on setup)
Sw4 = OFF (Leave OFF)
In Installer Menu, set 4 Fn = H (Heat Only)
TYPICAL SYSTEM WIRING DIAGRAMS
15
SC
In
A
Y G
R
Com
C
HEAT 1
RELAY
FAN 1
RELAY
LINE
24 V
W
Out
OPTIONAL
REMOTE SENSOR
TERMINALS
THERMOSTAT
EQUIPMENT
Factory Link
24C Optional
OUTDOOR
SENSOR
INDOOR
SENSOR
COOL ONLY
Switch Settings
Sw1 = OFF (Heat / Cool)
Sw2 = ON (Thermostat controls fan)
Sw3 = OFF (No affect on setup)
Sw4 = OFF (Leave OFF)
In Installer Menu, set 4 Fn = C (Cool Only)
TYPICAL SYSTEM WIRING DIAGRAMS
16
SC
In
A
Y G
R
Com
C
COOL 1
RELAY
FAN 1
RELAY
LINE
24 V
W
Out
OPTIONAL
REMOTE SENSOR
TERMINALS
THERMOSTAT
EQUIPMENT
Factory Link
24C Optional
OUTDOOR
SENSOR
INDOOR
SENSOR
2 OR 3 COOL (3 COOL ILLUSTRATED)
Switch Settings
Sw1 = OFF (Heat / Cool)
Sw2 = ON (Thermostat controls fan)
Sw3 = OFF (4 min anti cycle delay)
Sw4 = OFF (Leave OFF)
In Installer Menu, set 4EF = C (Cool Only) Set 17:R4 = C2 (A Relay = Cool 2)
Set 17:R4 = C3 (A Relay = Cool 3 and W = Cool 2)
Set 4:Fn = C (Cool Only Mode
TYPICAL SYSTEM WIRING DIAGRAMS
17
SC
In
A
Y G
R
Com
C
COOL 1
RELAY
COOL 2
RELAY
COOL 3
RELAY
FAN 1
RELAY
LINE
24 V
W
Out
OPTIONAL
REMOTE SENSOR
TERMINALS
THERMOSTAT
EQUIPMENT
Factory Link
24C Optional
OUTDOOR
SENSOR
INDOOR
SENSOR
1 HEAT / 1 COOL (GAS)
Switch Settings
Sw1 = OFF (Heat / Cool)
Sw2 = OFF (Equipment controls fan)
Sw3 = OFF (4 minute short cycle protection)
Sw4 = OFF (Leave OFF)
In Installer Menu, set 4Fn = - (Manual Changeover) or 4Fn = A (Auto Changeover)
TYPICAL SYSTEM WIRING DIAGRAMS
18
SC
In
A
Y G
R
Com
C
COOL 1
RELAY
HEAT 1
RELAY
FAN 1
RELAY
LINE
24 V
W
Out
OPTIONAL
REMOTE SENSOR
TERMINALS
THERMOSTAT
EQUIPMENT
Factory Link
24C Optional
OUTDOOR
SENSOR
INDOOR
SENSOR
2 HEAT / 1 COOL (GAS)
Switch Settings
Sw1 = OFF (Heat / Cool)
Sw2 = OFF (Equipment controls fan)
Sw3 = OFF (4 minute short cycle protection)
Sw4 = OFF (Leave OFF)
In Installer Menu, set 17:R4 = H2
TYPICAL SYSTEM WIRING DIAGRAMS
19
SC
In
A
Y G
R
Com
C
FAN 1
RELAY
LINE
24 V
W
Out
OPTIONAL
REMOTE SENSOR
TERMINALS
THERMOSTAT
EQUIPMENT
Factory Link
24C Optional
OUTDOOR
SENSOR
INDOOR
SENSOR
COOL 1
RELAY
HEAT1
RELAY
HEAT 2
RELAY
1 HEAT / 2 COOL (GAS)
Switch Settings
Sw1 = OFF (Heat / Cool)
Sw2 = OFF (Equipment controls fan)
Sw3 = OFF (4 minute short cycle protection)
Sw4 = OFF (Leave OFF)
In Installer Menu, set 17R4 = C2
TYPICAL SYSTEM WIRING DIAGRAMS
20
SC
In
A
Y G
R
Com
C
COOL 1
RELAY
HEAT 1
RELAY
COOL 2
RELAY
FAN 1
RELAY
LINE
24 V
W
Out
OPTIONAL
REMOTE SENSOR
TERMINALS
THERMOSTAT
EQUIPMENT
Factory Link
24C Optional
OUTDOOR
SENSOR
INDOOR
SENSOR
1 HEAT / 1 COOL HEAT PUMP
Switch Settings
Sw1 = ON (Heat Pump)
Sw2 = OFF (OFF=‘O’ reversing valve, ON=’B’ reversing valve)
Sw3 = OFF (4 minute short cycle protection)
Sw4 = OFF (Leave OFF)
TYPICAL SYSTEM WIRING DIAGRAMS
21
SC
In
A
Y G
R
Com
C
COMP 1
RELAY
R/VALVE
RELAY
FAN 1
RELAY
LINE
24 V
W
Out
OPTIONAL
REMOTE SENSOR
TERMINALS
THERMOSTAT
EQUIPMENT
Factory Link
24C Optional
OUTDOOR
SENSOR
INDOOR
SENSOR
2 HEAT / 1 COOL HEAT PUMP
Switch Settings
Sw1 = ON (Heat Pump)
Sw2 = OFF (OFF=’O’ reversing valve ON=’B’ reversing valve)
Sw3 = OFF (4 minute short cycle protection)
Sw4 = OFF (Leave OFF)
In Installer Menu, set 17R4 = AU
TYPICAL SYSTEM WIRING DIAGRAMS
22
SC
In
A
Y G
R
Com
C
COMP 1
RELAY
R/VALVE
RELAY
AUX
RELAY
FAN 1
RELAY
LINE
24 V
W
Out
OPTIONAL
REMOTE SENSOR
TERMINALS
THERMOSTAT
EQUIPMENT
Factory Link
24C Optional
OUTDOOR
SENSOR
INDOOR
SENSOR
2 HEAT / 2 COOL HEAT PUMP (NO AUXILIARY HEAT)
Switch Settings
Sw1 = ON (Heat Pump)
Sw2 = OFF (OFF=’O’ reversing valve ON=’B’ reversing valve)
Sw3 = OFF (4 minute short cycle protection)
Sw4 = OFF (Leave OFF)
In Installer Menu, set 17R4 = Y2
TYPICAL SYSTEM WIRING DIAGRAMS
23
SC
In
A
Y G
R
Com
C
COMP 1
RELAY
R/VALVE
RELAY
COMP 2
RELAY
FAN 1
RELAY
LINE
24 V
W
Out
OPTIONAL
REMOTE SENSOR
TERMINALS
THERMOSTAT
EQUIPMENT
Factory Link
24C Optional
OUTDOOR
SENSOR
INDOOR
SENSOR
SC
S1
A
Y G R CW
S2
2 Wire - Gas Heating
THERMOSTAT
EQUIPMENT
OPTIONAL
REMOTE SENSOR
TERMINALS
Switch Settings
Sw1 = OFF (Heat Cool)
Sw2 = OFF (OFF=Fan controlled by Gas Heater)
Sw3 = ON (No short cycle protection required)
Sw4 = ON (Leave OFF)
In Installer Menu, set 4 Fn = H
TYPICAL SYSTEM WIRING DIAGRAMS
OUTDOOR
SENSOR
INDOOR
SENSOR
24
Gas Heater
R
W
ENTERING THE MENU
Touch and hold both the Clock and Mode section for 5 seconds to enter the Installer Menu.
To advance through the menus, touch the Mode section.
E
E
INSTALLER SETUP MENU
25
SELECTING THE PROGRAM
The first menu 1:PR selects programmable or non-progrmmable operation. Press the UP or
DOWN arrows to change the selection. The factory default is 4 (4 schedules per day).
E
0 = Manual Mode (non-programmable)
2 = 2 Schedules Per Day (Day / Night)
4 = 4 Schedules Per Day (Morning / Day / Evening / Night)
Program
INSTALLER SETUP MENU
Morning Day
Evening Night
26
SELECTING PROGRAM DAYS
If menu 1:PR is set to 2 or 4, 2:PD is used to select 5 + 2 programming or 7 day
programming. Touch the UP or DOWN arrows to change the selection. The factory default
is 52.
52 = 5 + 2 (Same schedule Mon-Fri and Sat-Sun)
7 = 7 (7 individual day programming)
E
INSTALLER SETUP MENU
27
SELECTING PROGRAMMABLE FAN OPTION
Menu 3:PF is the Programmable Fan option which allows selecting continuous or auto fan
operation for each program event when programmable mode is enabled.
ON = Programmable Fan
OFF = No Programmable Fan
E
INSTALLER SETUP MENU
Program
28
SELECTING MODE
Menu 4:FN selects the mode of operation. The factory default is FN=A for auto changeover.
Touch the UP and DOWN arrows to change the selection.
E
- = Manual Changeover
A = Auto Changeover
H = Heat Only
C = Cool Only
AO = Auto / Off Only
AUTO
INSTALLER SETUP MENU
29
TOUCHSCREEN LOCK OPTIONS
Menu 5:LC allows you to prevent changes to all or part of the touchscreen functions. The
factory default is OFF. Touch the UP and DOWN arrows to the selection.
E
INSTALLER SETUP MENU
OFF = All Functions Unlocked 4 = UP / DOWN Arrows Locked 8 = Fan / Program / Mode / Clock
1 = Program Locked 5 = Clock Locked Locked
2 = Mode Locked 6 = Fan / Mode Locked 9 = All Functions Locked
3 = Fan Locked 7 = Fan / Program / Mode Locked
30
SELECTING THE COOLING LIMIT
Menu 6:CL selects the minimum cooling set point. The factory default is 10° FC. Touch the
UP and DOWN arrows to adjust the limit from 6° - 50° C.
E
Set
INSTALLER SETUP MENU
31
SELECTING THE HEATING LIMIT
Menu 7:HL selects the maximum heating set point limit. The factory default is 35° C. Touch
the UP and DOWN arrows to adjust the limit from 5° - 49° C.
E
Set
INSTALLER SETUP MENU
Heat
32
SELECTING TEMPERATURE DISPLAY
Menu 8:TD selects the temperature to be displayed in Fahrenheit or Celsius. The factory
default is C (Celsius). Touch the UP and DOWN arrows to change the display setting.
E
INSTALLER SETUP MENU
F = Fahrenheit
C = Celsius
33
SELECTING TIME FORMAT
Menu 9:CL selects the time format which can be 12 hour or 24 hour. The factory default is
12 (12 hour). Touch the UP and DOWN arrows to change the format.
E
INSTALLER SETUP MENU
12 = 12 Hour
24 = 24 Hour (Military Time)
34
SELECTING SETPOINT DISPLAY OPTION
Menu 10:ST allows the option of continuously displaying the setpoint temperature with the
space temperature. The factory default is OFF (no setpoint displayed).
E
INSTALLER SETUP MENU
Set
OFF = No Setpoint Displayed
ON = Display Setpoint
35
SELECTING BACK LIGHT OPTION
Menu 11:BL allows you the select the back light option. The factory default is ON (Back
light ON). Touch the UP and DOWN arrow to change the option.
E
INSTALLER SETUP MENU
ON = Back Light On (Light stays on for 10 seconds when screen is touched)
OFF = No Back Light
All =Back Light on constantly. High with button press and low at other times
(24V power only)
36
SELECTING ADAPTIVE RECOVERY
Menu 12:RC allows you the select the Adaptive Recovery option when the thermostat is
configured as programmable. Adaptive Recovery compares the space temperature
deviation from setpoint and rate of recovery history to bring the equipment on and reach
the setpoint at the scheduled time. Touch the UP and DOWN arrows to change the option.
E
INSTALLER SETUP MENU
OFF = No Adaptive Recovery
ON = Adaptive Recovery On (For programmable mode only)
37
FILTER REMINDER
Menu 13:FT allows you to select a time when the thermostat will display FLT as a reminder
that the HVAC system filters need to be changed. The factory default is OFF. Touch the UP
and DOWN arrows to change the filter reminder time.
E
INSTALLER SETUP MENU
010 = 100 Hours
100 = 1000 Hours (Up to 9,000 hours in 100 hour steps)
38
CHANGING THE HEATING AND COOLING DIFFERENTIAL
Menu 14:SP allows you to select the temperature differential between the heating and
cooling set point. The factory default is 1 (0.5° C) Touch the UP and DOWN arrows to
change the differential.
E
INSTALLER SETUP MENU
1 = 0.5° C
2 = 1° C
3 = 1.5° C
39
INTERNAL SENSOR CALIBRATION
Menu 15:CA allows you to re-calibrate the internal temperature sensor. The factory default
is 0 (0° C). Touch the UP and DOWN arrows to adjust the calibration from -5 . ° to +5° C
E
INSTALLER SETUP MENU
40
REMOTE SENSOR
Menu 16:TT allows you to select indoor remote sensor only or remote sensor with internal
sensor. The factory default is RS which disables the internal sensor only when an indoor
remote sensor is wired. Touch the UP and DOWN arrows to change the option to AU if you
want to use the internal sensor with a remote sensor as part of temperature averaging.
E
INSTALLER SETUP MENU
RS = Indoor Remote Sensor Only
AU = Indoor Remote Sensor With Internal Sensor
41
Note
If using outside air or remote
room temperature sensor(s)
battery life will be drastically
reduced.
If using remote sensors it is
highly recommended to
power the 44-800 from 24V
ASSIGNING THE ‘A’ RELAY
Menu 17:R4 allows you to assign the ‘A’ relay based on the specific equipment
configuration. The factory default is OFF. Touch the UP and DOWN arrows to change the
‘A’ relay assignment. Note that selections change based on Heat / Cool or Heat Pump
(Sw1) configuration.
INSTALLER SETUP MENU
E
HEAT / COOL HEAT PUMP
C2 = 2nd Stage Cooling EH = Emergency Heat Only
H2 = 2nd Stage Heating AU = Auxiliary and Emergency Heat
C3 = 3rd Stage Cooling Y2 = 2nd Stage Compressor
42
LOW BALANCE POINT SELECTION USING OUTDOOR SENSOR
Menu 18:LB allows you to select a low balance point setting when the thermostat
is configured for Fossil Fuel. When the outdoor temperature falls below the
balance point setting, the compressor is locked out and only the fossil fuel
furnace is used for heating. The factory default is OFF. Touch the UP and DOWN
arrows to change the setting. Setting can be from -15° to 25° C.
INSTALLER SETUP MENU
E
43
HIGH BALANCE POINT SELECTION USING OUTDOOR SENSOR
Menu 19:HB allows you to select a high balance point setting when the
thermostat is configured for Fossil Fuel. When the outdoor temperature rises
above the balance point setting, the furnace is locked out and only the
compressor is used for heating. The factory default is OFF. Touch the UP and
DOWN arrows to change the setting. Setting can be from 0° to 50° C.
INSTALLER SETUP MENU
E
44
AUDIBLE BEEP
Menu 20:BP allows you to turn the audible beep on or off. The factory default is
ON. Touch the UP and DOWN arrows to turn the audible beep OFF.
INSTALLER SETUP MENU
E
45
FACTORY RESET
Menu 21:RS allows you to reset the thermostat to the original factory defaults. To
reset the thermostat, touch the UP and DOWN arrows and set to ON.
INSTALLER SETUP MENU
E
46
REMOTE SENSOR INSTALLATION
REMOTE SENSORS
There are two type of remote sensors. The RS-1 is a single sensor that can be used
indoors or outdoors. The RS-2 contains two sensors. A combination of both sensors can be
used for indoor temperature averaging with or without the onboard sensor. Use separate
18-2 shielded cable when wiring sensors.
INDOOR SENSOR WIRING
When the RS-1 is used as an indoor sensor, the 44-800 can be configured to allow only
the remote sensor to control the temperature or a combination of remote and onboard
sensors can be used for temperature averaging. Refer to 16:TT in the installer setup menu
to select the proper remote sensor option. Indoor sensor wires to terminals S1 and SC.
(FIGURE 5)
OUT
SC IN
RS-1
SENSOR
FIGURE 5
47
Note
If using outside air or remote room
temperature sensor(s) battery life will be
drastically reduced.
If using remote sensors it is highly
recommended to power the 44-800 from 24V
REMOTE SENSOR INSTALLATION
Locate the sensor in the same manner as the thermostat. Mount the sensor 300mm away
from any outside wall. Do not install the sensor behind doors, in corners or other dead air
spaces. Keep the sensor away from direct air flow, supply registers or near sources of heat
such as lamps and appliances. The maximum wire length from the sensor to the
thermostat is 30meters. Use a separate 18-2 shielded cable for sensor wiring. Prior to
wiring the sensor to the thermostat, use an ohm-meter or multimeter to measure the
resistance of the sensor. Measure at the end of the wires that will connect to the
thermostat. Confirm the resistance value (within 5%) to the temperature where the sensor
is mounted. Use a quality digital electronic thermometer to read the temperature at the
sensor. Remove the sensor cover and place the thermometer probe next to the remote
sensor to verify an accurate reading. Disconnect power to the thermostat when wiring the
sensor to the proper sensor terminals. Strip only as much insulation off of the wires as
necessary to provide a good contact with the terminals. The sensor is not polarity specific
so either sensor lead may be connected to either designated terminal on the thermostat.
48
USING MULTIPLE SENSORS FOR TEMPERATURE AVERAGING
Multiple indoor remote sensors can be wired in series/parallel for temperature averaging.
The total value of the sensors must equal 10kÙ @ 25° C. The onboard sensor is not part of
the equation even if it is configured as part of the averaging circuit. Figure 6 illustrates two
RS-2 sensors used for averaging.
REMOTE SENSOR INSTALLATION
S2 SC S1
RS-2
SENSOR
RS-2
SENSOR
FIGURE 6
49
OUTDOOR SENSOR WIRING
When the RS-1 is used as an outdoor sensor, the 44-800 will display the outside air
temperature as well as control high and low balance points for fossil fuel systems. Refer to
16:TT in the installer setup menu to select the proper sensor option. The outdoor sensor
wires to the Sensor Common and Outside air terminals. Figure 7 illustrates both an indoor
and outdoor sensor configuration.
Out
SC
In
RS-1
SENSOR
RS-1
SENSOR
INDOOR SENSOROUTDOOR SENSOR
REMOTE SENSOR INSTALLATION
FIGURE 7
50
Mount the sensor on a vertical exterior surface below an overhang. Choose a location
protected from direct sunlight and exposure to excessive moisture. Follow the same wiring
procedures as installing an indoor sensor.
TEMPERATURE SENSOR CALIBRATION CHART
REMOTE OUTDOOR SENSOR INSTALLATION
Temperature Resistance Temperature Resistance
(°C) (kÙ) (?C) (kÙ)
0 34.6 21 11.9
5 26.1 26 9.4
10 19.9 32 7.4
15 15.3 37 5.9
NTC type 3 sensor - 10K @ 25° CÙ
51
TESTING
The 44-800 incorporates a short-cycle timer which can be disabled during testing by setting
slide switch 3 to the ON position. Once testing is completed, the timer needs to be reinitiated by setting the switch to OFF.
TESTING FAN OPERATION
Touch MODE until the word OFF is displayed. Touch FAN until the words Always On
appear. After a brief moment, the internal fan relay ‘G’ will energize and the system fan
should operate. Touch FAN again until the word Automatic appears. After a brief moment,
the internal fan relay will de-energize and the system fan will shut off.
TESTING CONVENTIONAL HEATING AND COOLING OPERATION
Touch MODE until the word Heat appears. Touch the UP arrow and raise the set point a
few degrees above the space temperature. After a brief moment, the internal heating relay
‘W’ will energize and the heating system should operate. The word Heat will flash
continuously. If the thermostat has been configured for two stage heating, raise the set
point a few degrees and the second stage heating relay ‘A’ will energize. Heat will flash
twice, pause and repeat the sequence to indicate second stage has been energized.
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TESTING
Touch MODE until Cool appears. Touch the DOWN arrow and lower the setpoint a few
degrees below the space temperature. After a brief moment, the internal fan ‘G’ and cooling
‘Y’ relay will energize. The word Cool will flash. If the thermostat has been configured for
two stage cooling, lower the set point a few degrees and the second stage cooling relay ‘A’
will energize. Cool will flash twice, pause and repeat the sequence to indicate second
stage has been energized.
TESTING CONVENTIONAL HEAT PUMP OPERATION
When the 44-800 is configured for conventional heat pump operation, testing is the same
as a heating and cooling system with the exception that the fan “G’ relay is always
energized with compressor, auxiliary and emergency heat calls.
TESTING FOSSIL FUEL OPERATION
This is NOT typically used in Australia.
When the 44-800 is configured for fossil fuel operation, testing is the same as a
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TESTING
conventional heat pump system with the exception that the heat pump is never allowed to
run when the fossil fuel furnace is energized. Whenever the thermostat calls for second
stage (auxiliary) heat, the compressor ‘Y’ relay is de-energized along with the fan ‘G’ relay
and the ‘A’ relay energizes the fossil fuel furnace. With the installation of an outdoor sensor,
both high and/or low balance point control can be used to prioritize heat pump or fossil fuel
operation based on a selected outdoor temperature.
TESTING LOW BALANCE POINT (Heat Pump or Fossil Fuel)
When an outdoor sensor is used with the 44-800, Installer Option 18:LB allows you to
select a low balance point temperature. When the outdoor temperature falls below the low
balance point setting, a call for heat from the thermostat automatically energizes the
auxiliary heat ‘A’ relay. To test the low balance point setting, set 18:LB above the displayed
outdoor temperature and force a call for heating. The ‘A’ relay will energize the compressor
‘Y’ relay will be bypassed. Set 18:LB below the displayed outdoor temperature and force a
call for heating. The compressor ‘Y’ relay will energize and the ‘A’ relay will not energize as
long as the thermostat does not call for second stage. After testing, reset the low balance
point temperature to a normal operating range.
54
TESTING
TESTING HIGH BALANCE POINT (Heat Pump or Fossil Fuel)
High balance point is designed to prevent the auxiliary heat ‘A’ relay from energizing when
the outdoor temperature is above the balance point setting. To test the high balance point
setting, set 19:HB below the displayed outdoor temperature and force a call for second
stage heating. The ‘A’ relay will not energize and only the compressor ‘Y’ and fan ‘G’ relays
will be active. If the thermostat is placed in the E.heat mode, the high balance point is
ignored and the ‘A’ relay will energized on a call for heat. After testing, reset the high
balance point temperature to a normal operating range.
Adaptive Recovery is only available in programmable mode (Installer Menu 12:RC = ON).
The Adaptive Recovery function of the 44-800 permits the user to program a time that a
desired set temperature is required. The thermostat then calculates the most energy
efficient time to bring on the equipment to reach the set point at the designated time. This
calculation involves a complex control algorithm that compares the space temperature
deviation from set point and rate of recovery history.
ADAPTIVE RECOVERY
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BASIC TROUBLESHOOTING
SYMPTOM POSSIBLE FAULT AND REMEDY
No LCD display If thermostat is battery powered only, remove battery compartment
and check to see that the positive (+) and negative (-) ends of each
battery are oriented properly. If thermostat is hardwired, remove the
thermostat from the subbase and check for 24 Volts across terminals
‘C’ and ‘R’. If no voltage, fault could be equipment or wiring related.
Thermostat can not be set In the Installer Options menu, set 4:FN = A for auto changeover.
for auto changeover 4:FN = - is for manual heat / cool
4:FN = C is for cooling only
4:FN = H is for heating only
Temperature display is Air from wall cavity may be leaking into the rear of the thermostat.
inaccurate Seal hole where wiring enters subbase to prevent air infiltration.
External influence from appliances, lighting or drafts may be affecting
temperature accuracy. Move lamps or other sources of heat away
from the thermostat.
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BASIC TROUBLESHOOTING
SYMPTOM POSSIBLE FAULT AND REMEDY
Thermostat not displaying Check wiring at outdoor sensor and sensor terminals on
outdoor temperature thermostat subbase. Outdoor sensor wires to terminals
Outside sensor and Sensor Common.
Heat or Cool is flashing This is not a fault but indicates that the thermostat heating
or cooling relay is energized.
Lock icon is displayed This is not a fault. The thermostat heating and cooling limits
when trying to set a are preventing setting a temperature above or below the
higher heating or lower limit values. These values can be changed in the Installer
cooling temperature Options menu.
6:CL = Cooling Limit. Factory default is 10º C. Adjustable
from 6º C - 50º C.
7:HL = Heating Limit. Factory default is 90º F. Adjustable
from 5º C - 49º C.
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SPECIFICATIONS
Input Voltage (Hardwired) 20-30 VAC 50/60 Hz
Relay Rating 24 VAC @ 1 Amp maximum per relay
Battery Power (2) AAA 1.5 V
Operating Temperature 0° C to 55° C
Operating Relative Humidity 0-95% (non-condensing)
Storage Temperature 0° C to 65° C
Size: 125 W x 85 H x 25 D mm
LCD Display Size 57 W x 99 H mm
Back Light White (LED)
Short-cycle Delay Off or 4 minutes
Displayed Temperature Resolution 0.1° C
Setpoint Range
Heating 5° C - 49° C
Cooling 6° C - 50° C
Heating and Cooling Limits Fully adjustable
Onboard Sensors NTC type 3 100K @ 25c
Remote Sensors NTC type 3 10K @ 25c
Warranty 3 years (RTB)
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20/1488 Ferntree Gully Rd Knoxfield Victoria 3180
www.thermostat.com.au
Smart Temp
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