Smart Temp ISIS User Manual

Smart Temp

User Manual

Congratulations on the p u r c h a s e of y o u r new E l e c t r o n i c Thermostat!

Your new Smart Temp ISIS thermostat has been built using the best components and design

philosophy currently available. As a result, if properly installed your new electronic programmable

thermostat will provide you with many years of trouble free and reliable service.

Your Smart Temp ISIS Thermostat has been designed to be an attractive, highly reliable and easy

to use thermostat. By taking the time to read and understand these simple instructions you can

take advantage of many of the capabilities that are offered in the ISIS.

Overview

To assist in your understanding and use of the Isis, a brief description of the

functions and controls is given below. A more complete step-by-step

instruction on using the ISIS is given later in the manual.

ON / OFF Button

To turn the ISIS on, press the ON/OFF button. To turn the ISIS off press and hold the ON/OFF button for 3 seconds. The Green ON/STBY LED will be illuminated when the ISIS is on.

Set Buttons

The set (or desired) room temperature can be adjusted by pressing the plus or minus SET buttons on the face of the ISIS. Each press will increase or decrease the set temperature by 1 deg C. The ISIS is a single set point thermostat. For example, setting the desired temperature at 21 deg C will bring on the AC heating if the room temperature falls below 20 deg C and bring on the AC cooling if the room temperature raises above 22 deg C. (Depending on the Deadband values set by the installer)

Prog Button

The ISIS is a 7 day programmable thermostat. This programmability permits you to set the days and times that the ISIS automatically turns you AC System on and off. You access these settings from the PROG button.

Clock Button.

The ISIS relies on an inbuilt real time clock to turn the system off and on at the times required. The Clock button is used to set this real time clock.

OVERRIDE button

Pressing this button will turn the AC system on (in the last mode and at the last set temperature) for an installer pre-set period of time. This override can be activated regardless of whether the ISIS is in the manual OFF mode (Green ON/STBY LED off), or the programmed STOP mode (Green ON/STBY LED on). When the override is active a flashing clock symbol will be shown in the lower centre of the LCD. To turn off the override simply press the OVERRIDE button once again.

Mode Button

The MODE button cycles the ISIS through Heat only, Cool Only, Auto-Change over or Fan only operational modes. These modes are detailed below.

Heat only mode The ISIS will turn on the AC Heating when the room temperature falls below the set temperature. In Heat only mode the ISIS will not bring on the AC Cooling regardless of the room and Set Temperature. In Heat only mode the word “HEAT” will be displayed in the LCD.

Cool only mode - The ISIS will turn on the AC Cooling when the room temperature raises above the set temperature. In Cool only mode the ISIS will not bring on the AC Heating regardless of the room and Set Temperature. In Cool only mode the word “COOL” will be displayed in the LCD.

Auto-change over mode - The ISIS will turn on the AC Heating if the room temperature falls below the SET temperature and the AC Cooling if the room temperature rises above the SET temperature. Auto changeover mode is indicated by words, “HEAT” & “COOL” in the LCD.

Fan Only mode. In Fan only mode the ISIS will turn on the system fan for continuous operation. The ISIS will not control the AC heating or cooling system regardless of the room and set temperature. In Fan only mode a small fan symbol will appear in the lower left of the LCD.

Auto Fan Button

The ISIS can control the system fan in two ways. Each press of the Auto Fan button alternates the ISIS between Auto fan mode or continuous (Occupied) fan mode.

Auto Fan Mode - The fan will run only while the AC system is heating or cooling. When the need for Heating or cooling stops, so does the fan.

Continuous Fan Mode (Occupied Fan). - In this mode, the fan will turn on when the ISIS is on and remain on until the ISIS turns off. The fan will remain on during this time regardless of whether there is a need to bring on the AC

system heating or cooling.

Please note - As the ISIS is a start / stop thermostat, when the system is OFF

(either in programmable or manual modes) the fan is also off.

Alarm / Limits

This button has multiple functions. It is used to enter the LOCK menu, the installer menu and to cancel any equipment fault, over or under temperature alarms that are present. These functions are described later in the document.

ON/STBY LED

As the ISIS has two operational modes, two descriptions of this LED's functions are given.

The ISIS in manual ON/OFF Mode.

This LED is illuminated when the ISIS is active and is not illuminated when the ISIS is off. This LED flashes when the 4-minute compressor short cycle protection delay is active.

The ISIS in Programmable Mode.

This LED is always illuminated regardless of whether the ISIS is in Start (System running) or Stop (System off) mode to indicate that the AC system is under ISIS control. This LED flashes when the 4-minute compressor short cycle protection delay is active.

ALARM LED

As well as being an AC controller, the ISIS is also capable of activating a remote alarm should the room temperature fall out of a pre set temperature range. As well as an alarm LED, the ISIS is also fitted with a normally open contact that closes when an alarm condition exists. If the AC equipment is fitted with a fault output, this can also activate the Alarm led and fault relay if appropriately wired.

Important Considerations

Remote Sensors

Smart Temp

Pict 1

Override

The ISIS has an after hour run on timer. This timer can be activated by pressing the OVERRIDE button on the front of the thermostat, or alternatively via a remotely wired switch. (Often, where there is a remote sensor installed and the override option is used, the override switch will be mounted on the remote sensor). To turn off the override simply press the override switch again.

Keyboard Lock

For added security and to prevent un-authorised tampering with the ISIS program or temperature settings the ISIS has a PIN protected key board lock. When this lock is active, the only buttons that will respond are the OVERRIDE button and the Alarm Reset button. The procedure to lock and unlock the ISIS is provided in the Installation manual. Only authorised persons will pe provided with this information in an effort to maintain the security of the thermostat.

For security and convenience the ISIS may be installed in a more remote or secure location. In such applications the ISIS will measure the temperature in the room to be controlled via a remotely connected temperature sensor(s). Pict 1 shows the Smart Temp adjustable version of this sensor. It is important that consideration is given to this sensor as placing hot items (such as kettles or urns) or cold items (such as chest freezers) under or in the vicinity of these sensors could result in uncomfortable room temperatures.

Making Life Comfortable

Smart Temp

Australia

Making Life Comfortable

Programming your ISIS

Setting the Desired Temperature

Use the SET + button to increase the desired room temperature. Use the SET - button to decrease the desired room temperature. While pressing these buttons the ISIS will display both the SET temperature and the current room temperature on the LCD. Normally the ISIS display will alternate between Temperature Display & Time display.

Setting the Clock

Please note. During programming and set up, the ISIS will resume normal

mode if no buttons are pressed for 15 seconds. This is an important

consideration during set up of the ISIS as if there is to long a period

between pressing buttons the thermostat will return to normal mode forcing

you to commence the programming procedure from the start.

LCD but this time we are adjusting the Start time for the Tuesday program.

7 Repeat steps 2 through 6 to adjust the

hours and minutes of the remaining Monday to Sunday start and stop times. (Pict 10)

Should you wish the ISIS to remain in the

OFF mode completely for one day

(I.E. Sunday) set the Start & Stop times to

the same value.

TIP: Press the clock button to advance rapidly through the days while in program mode.

SET

MON

TUE

SET

1 2

START

Pict 9

Pict 10

STOP

PROGRAM

As the ISIS can operate as a programmable thermostat it is essential that the clock is set correctly otherwise the ISIS will not operate the AC system at the desired times.

1 Press the CLOCK button once. The

Hours will flash in the LCD. Using the Set + or SET - button adjust the hours to the correct time making sure that the AM or PM (if in 12 hour mode) indicator is correct. (Pict 2)

2 Press the CLOCK button again. Now the

minutes flash in the LCD. Using the Set + or SET - button adjust the minutes to the correct time. (Pict 3)

3 Press the CLOCK button again. Now the

day of the week flash in the LCD. Using the Set + or SET- button adjust the day indication to the correct day. (Pict 4)

4 Press the Clock button once again. The

ISIS clock is now set.

Programming the ISIS to turn on and off at your required times.

Please note. During programming and set up, the ISIS will resume normal

mode if no buttons are pressed for 15 seconds. This is an important

consideration during set up of the ISIS as if there is to long a period

between pressing buttons the thermostat will return to normal mode forcing

you to commence the programming procedure from the start.

The ISIS is a 7 day programmable thermostat. Each day of the week can have a different start and stop time for each of the program “starts” and program “stops”. For example, the ISIS can turn the AC system on at 9:30 am Sunday and off again at noon Sunday.

For simplicity, your ISIS has a default factory installed program of 7:30 AM Start ~ 5:00 PM Stop Monday to Friday. This default program may be modified if required

TUE

CLOCK

Pict 3

CLOCK

Pict 4

Pict 2

To program the ISIS

1 Press the PROG button and the time will flash in the LCD. Monday

is displayed and the program indicator on the lower right of the LCD is on. (Pict 5)

2 Press the PROG button again, The Hour flashes, START and

Program 1 is displayed. Note that Monday is displayed indicating that this days program is being set. Press the Set + or SET - button to adjust the hours to the time you want the ISIS to turn the AC system on during Monday. (Pict 6)

3 Press the PROG button again, Now the

Minutes flash, Press the Set + or SET - button to adjust the minutes to the time you want the ISIS to turn the AC system on. (Pict 7)

4 Press the PROG button; the Hour

flashes again but this time the word STOP is displayed in the LCD. Using the Set + or SET - button adjust the hours to the time you wish the ISIS to turn the AC system OFF. (Pict 8)

5 Press the PROG button again and the

minutes flash. Using the Set + or SET button adjust the minutes to the time you wish the ISIS to turn the AC system OFF.

(Pict 9)

6 Press the PROG button again; the

Hour flashes again with the

word START shown in the

SET

TUE WED

MON

THU FRI

Pict 5

SET

START

Pict 6

SET

START

Pict 7

SET

SAT SUN

STOP

Pict 8

PROGRAM

1 2 3 4

PROGRAM

Please note. The ISIS is able to operate as a manual (non programmable thermostat) or as a 7 day programmable thermostat as previously described.

To operate the ISIS in Non Program or manual mode (Not under any automatic time clock control) press and hold the PROG button for 5 seconds. When the ISIS is running in non program mode the program indicator in the lower right of the ISIS LCD will be missing. This ISIS can then be manually turned off and on when required with the ON/Off button. To reactivate program mode simply press and hold the “prog” button for 5

seconds until the Program indicator is active.

Heat mode indicator

Cool mode indicator

Fan only mode indicator

SET

Used to adjust the desired or “set” temperature.

Note: Both HEAT and

COOL on together

indicates Auto Change-

over mode on.

Stage indicators

Day indicator

Auto Fan on indicator

AUTO FAN HEAT COOL

MON

Program Start Indicator

Program Indicator

(Flashes when in override mode)

ON/STB

Indicates System Status Indicates Comp Protection delay active.

ALARM

Indicates Over / Under Temperature alarm active. Indicates Equipment Fault.

ON / OFF

Toggles the ISIS between on and off modes.

MODE

Used to select Heat, Cool, Auto or Fan Only Mode.

AUTO FAN

Used to Select Auto or Manual Fan mode.

ALARM LIMITS / RESET

Used to Reset Over/Under Temp alarms. Used to enter Lock / Unlock mode. Used to acknowledge equipment fault

OVERRIDE

Used to toggle the Two Hour System Run Override

CLOCK

Used to set the ISIS Real Time clock.

PROG

Used to program the ISIS start and Stop times. Used to Toggle between Program & Manual Modes.

Time & Temperature Display

AM/PM Indicator

(Not used in 24 Hour clock mode)

CLOCK TEMP

SET

TUE WED

THU FRI

START

Smart Temp

SAT SUN

STOP

Current Program running

Program Stop Indicator

Australia

Unit 20, 1488 Ferntree Gully Road

Knoxfield 3180 Victoria Australia

Phone:(03) 9763 0094 Fax (03) 9763 0098

Ver 06-07

www.thermostat.com.au

AM PM

PROGRAM

1 2 3 4

Making Life Comfortable

Smart Temp ISIS User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual