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General| Brand | Zonefirst |
|---|---|
| Model | MASTERZONE MZS4 |
| Category | Control Unit |
| Language | English |
Overview of status LEDs and operational buttons on the control board for system monitoring and control.
Details on adjustable timers for stage activation and heating limit settings.
Description of various terminal connections for thermostats, sensors, and HVAC equipment.
Information on setting up the system via DIP switches and expanding zone capacity.
Details on physical mounting points and protective features like the re-settable fuse.
Explains the LED indicators that show which zones are actively calling for conditioning.
Describes the function of the jumper used when the Leaving Air Sensor is not installed.
Recommendations for mounting the MZS4 panel and considerations for wiring access.
Explains the fundamental operation of zone control, including accepting calls and mode switching.
Detailed guide on configuring the MZS4 for various HVAC systems using DIP switches.
Explains the ZPS sensor, its role in protection, and installation.
Details the built-in stage timer for multi-stage control and the purge time function.
Describes timers that prevent short cycling and manage mode changeovers intelligently.
Information on expanding the MZS4 system capacity using MZA zone adder panels.
Guidance on verifying system operation using LED indicators and basic checks.
Illustrates how to connect single-stage and heat pump thermostats and HVAC equipment.
Guidance on using LEDs, a voltmeter, and the BOOT button to diagnose and resolve problems.
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