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THERMOSTAT VERIFICATION
The thermostat operation may be verified only when the SZP control module is powered; the
control module provides power to the zone thermostats. Verify operation as follows:
1. Check that the satellite dish symbol appears at the lower left corner of the display and that
the uplink symbol ✭ flashes occasionally. If the symbols are present, the thermostat and the
SZP control module are communicating properly. If the symbols are not present, the ther-
mostat and the module are not communicating. If ✫ is not present, check communication
wiring and ensure that polarity is correct.
2. Press the MODE button to select either the heat % or cool ☛ mode. The flame and snowflake
symbols start flashing only when SZP finally brings on the equipment.
3. Press the
button to raise the temperature setpoint above (in heat mode), or the
✟
lower the temperature setpoint below (in cool mode), the current displayed temperature.
Within a few seconds, the thermostat should call for either heating or cooling. Check at the
SZP control module that the orange LED (heating) or the yellow LED (cooling) for this
zone's input is ON, indicating that the control module has acknowledged the call. Note that
the equipment might not be activated depending on the setup and status of the control mod-
ule.
12
button to
✞
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