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MASTERZONE

 ZONING SYSTEM

 

— 4 Zones 

For use with the 24V Damper Motors

 

 

Model MZS4  

 

 

 

 
Installation and Operating Instructions 

 

 

                             Controlling Your Comfort Room By Room 
 

Summary of Contents for MASTERZONE MZS4

Page 1: ...MASTERZONE ZONING SYSTEM 4 Zones For use with the 24V Damper Motors Model MZS4 Installation and Operating Instructions Controlling Your Comfort Room By Room ...

Page 2: ...ES Zone Terminals for Zone Damper Motors and Zone Thermostats 24VAC Transformer Terminals Re Settable Fuse Zone Calling Indicators Mode DIP Switches HVAC Equipment Terminals Leaving Air Sensor Terminals ZONE ADDER RJ11 Connection Adjustable Heating Limit Mounting Keyholes Two at Top also Adjustable Second Stage Timer Power Indicator LED Boot Button System Mode Indicator LED Purge Override Button N...

Page 3: ...n CAC in those zones where the thermostat s Fan Switch is set to ON These zone dampers will be Open while the dampers to the zones where the Fan Switch is set to AUTO will be CLOSED When all zone thermostats are satisfied for both Heating and Cooling and all Fan switches are set to AUTO position the HVAC unit will be off and all zone dampers will return to a normally open position Once a zone call...

Page 4: ...ly the fan may be running during this time and the damper s to the last zone s calling will remain open to purge the conditioned air only into those zones that were calling for the conditioning DIP Switch 5 can be set ON to keep the Fan running during the Purge mode in order to prevent the fan cycling off and back on between modes In the instance where the Fan staying may create a draft and the fr...

Page 5: ...MENT AIR TO AIR HEAT PUMP CONNE CTIONS HEAT PUMP CONTROLS W2 W1 Y1 Y2 O G E B R W3 Compressor Relay Reversing Valve 24V Transformer Second Stage Heat Relay Emergency Heat Relay Fan Relay EQUIPMENT AIR TO AIR HEAT PUMP CONNE CTIONS HEAT PUMP CONTROLS W2 W1 Y1 Y2 O G E B R W3 TROUBLESHOOTING The MZS4 is a very simple control to troubleshoot especially with the LED indicators The only other device ne...

Page 6: ...GLESTAGETHERMOSTAT E G R W O B Y C CLOSE OPEN COM ZONE CONNECTIONS C Y W R G SINGLESTAGETHERMOSTAT E G R W O B Y C CLOSE OPEN COM ZONE CONNECTIONS C Y W R G SINGLESTAGETHERMOSTAT E G R W O B Y C CLOSE OPEN COM ZONE CONNECTIONS C Y W R G SINGLESTAGETHERMOSTAT E G R W O B Y C CLOSE OPEN COM ZONE CONNECTIONS C Y W R G SINGLESTAGETHERMOSTAT E G R W O B Y C CLOSE OPEN COM ZONE CONNECTIONS C Y W R G SIN...

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