Page 14 of 16 Edition 1.2 (0608)
Zone Control (if fitted)
If zoning is enabled the word “Zone” and either “1”, “2,” or “1 2” (indicating both zones) will
be shown.To select which zone(s) you wish to be controlled, simply tap the On/Off button to
toggle between zone 1, Zone 2 or both zones
If the optional Zone 2 Temperature sensor has been installed, the second zone temperature will
also be shown in the LCD.
Some homes or offices require temperature control in two separate areas, a living and sleeping
zone for example. If your TZT-701 thermostat shows the word “ZONE” then the Zoning
function is active. You may also have information on the temperature in the second zone (if the
optional second zone temperature sensor has been installed).
If you have the Zoning function active on your TZT-701 thermostat and the Zone-2 temperature sensor is fitted, then your
desired temperature will be maintained in both zones of your home or office.
The TZT-701 thermostat will automatically open and close “dampers” (motorised valves that regulate the flow of air in the
ducting that carry the warmed or cooled air from the Air Conditioning system to the various areas of the home or office) as well
as controlling the Air Conditioning system to direct air to the appropriate area of the home or office.
This capability not only improves the comfort in the home or office (especially in two story buildings or difficult to temperature
regulate areas), it dramatically reduces the energy costs by only operating Air Conditioning system in the areas (or zones) that
require it. This function eliminates the over heating or over cooling effects of some air-conditioning controllers.
Note, this function cannot be used in conjunction with the Outside Air Economy Function.
Changing Active Zones.
Simply tapping the On/Off button while the TZT-701 thermostat is switched on will cycle the TZT-701 thermostat between Zone
1 only operation, Zone 2 only, then both Zones operating. When a zone is calling for warmed or cooled air, it is directed to that
particular zone in order to maintain the desired temperature. If the optional Zone-2 temperature sensor has been installed, the
Zone-2 temperature is measured and controlled to the set point. The Zone-2 temperature is also displayed on the LCD.
Please note.
The TZT-701 thermostat will maintain a minimum of one open zone at all times. To protect the air conditioning system
and ducting you cannot turn both zones off at the same time.
Key Board Lock / Function Lock
Many of the features or functions of the TZT-701 can be locked by the owner or installer to prevent un-authorised tampering.
When any locked function is attempted to be accessed, your TZT-701 will flash the padlock symbol to inform you that the
function or control limit has been reached.
Fan Speed Management
As touched upon in this manual, fan speed management is a critical component of effective air conditioning control. The fan is
directly responsible for the air movement through your air conditioning system and home/office and has a significant impact on
how efficiently your air conditioning system operates.
The TZT-701 monitors components within your air conditioning system and based on that information controls the speed of the
Air Conditioner’s fan. When in the “Auto” Fan mode, the speed is not exclusively controlled by room temperature relative to the
set point. Other factors are used as well. This of course does lead to fan speed variation, which can on occasions be irritating. If
so, you have the option to fix the fan speed, but be aware that this may solve the noise issue but lead to less than ideal air
distribution. There is no right or wrong setting. It is up to the user to determine what works best in their particular situation.
Optimised Start
Optimised Start mode permits the TZT-701 thermostat to automatically calculate the most optimum time to start your air
conditioning system so that your programmed set point temperature is reached AT the program start time.
Your A/C system will therefore turn on before the scheduled event so that the set temperature is achieved at the scheduled event
time, not after it. This is an “Installer configured” feature. If you believe it would be of benefit to your situation, contact your
installer to have this facility enabled.
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