Trane SCXG-SVX01B-EN Keypad Operation, Installation programming, Initial Power-Up, Program Button

Installation programming

Initial Power-Up

Before applying power to your ZSM, and before performing setup and operation procedures, verify that all wiring is correct. See Figures I-P-9 on page 52 and I-P-10 on page 53 for a complete zone sensor icon display description.

For BAYSENS020 only: at initial power- up, the ZSM controls to default tempera- tures of 68°F (19°C) for warmup, and 55°F (13°C) supply air, until the ZSM is programmed or the arrow keys are pressed. If the arrow keys and mode are moved, the ZSM starts controlling to these new settings.

Time and Day Settings

On power-up your ZSM will be in normal run mode and will begin operating using setpoints. The display will show the wrong day and time and will need to be set.

To set the time, there is a single rubber button on the keypad “minus” and “plus” mark time.

Depressing the positive side will advance the time. Depressing the negative side will decrease the time.

Each time you depress the positive or negative side “minus” and “plus”, the time will either advance or decrease respectively by one minute. If you press and hold either side of the time button, the time change will accelerate rapidly.

When you reach the correct time, release the time button and the time will be set into permanent memory.

Note: To ensure the time changes are made, the ZSM will initiate a 30 second user-stabilization time before making changes to the ZSM operation mode.

Keypad Operation

Note: After toggling to the program screen, the week is divided into seven days with each day divided into four periods. Therefore, 28 program settings are pos- sible.

Program Button

Depressing the program button will toggle the display from normal run mode to the program menu. See Figure I-P-3. Before toggling to the program menu, use the mode button to select the type setpoints to review or program (heat, cool or auto). For example, if you select cool mode before toggling to the program menu, then only the cool setpoints are reviewed or programmed. If you select heat mode, then only the heat setpoints are reviewed or programmed. In auto mode, both heat and cool setpoints are reviewed and programmed.

•While in program menu, each time you press and release the program button, the ZSM toggles through the four periods that divide each day.Those four periods are: Morn(ing), Day, Eve(ning),

and Night.

•To exit the program menu, depress the program button for two seconds.

Figure I-P-3. Display program menu screen

Program Menu

BAYSENS020 Only

Note: After toggling to the program screen, the week is divided into seven days with each day divided into four periods.

Setpoint programming depends on the setting status, occupied or unoccupied, and whether or not heat is installed, modulated heat, morning warmup, or daytime warmup options are enabled.

In the occupied period, the cool supply air temperature is always set. If heat installed and modulated heat options are on, the supply air heat is also set during occupied periods. The warmup tempera- ture is also set in occupied periods, if heat

is installed and warmup options are enabled.

During unoccupied periods, only the desired room temperature setpoints are entered. Each unoccupied period has a heat and cool setpoint, and both setpoints are offered during programming.

Blank temperature settings may also be entered. When a setpoint is blank, the program will default to the last setpoint of its type. If there is no setpoint of its type, the default setpoint is used. If all setpoints in the time period are blank, the entire time period is erased after exiting from the program menu.

The ZSM has independent, seven day programming:

•Each day can be programmed with different times, temperatures, and occupied status.

•Each day can be programmed with up to four periods. Although four periods are available each day, you can program just one of the four.

•Each period can be programmed for occupied or unoccupied.

To begin programming, follow these steps:

•Determine which periods during the day will be occupied and unoccupied.

•Write your daily schedule on the sheet enclosed with the zone sensor.

•Enter your program by following the steps below.

To program time periods and setpoints for a day:

•Press the program button to enter program mode.

•Press the day button to select first day to be programmed.

•To set the “begin” time for the first period of the day, press the minus or plus keys.

•To set the temperature setpoint for that period, use ↑ or ↓.

•Press the program button to move to the next period for that day.

•To program time periods and setpoints for the next day, press the day button.

•When finished, press and hold the program button for two seconds to return to the normal run mode.

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