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PART #: MZA2 - MODULE ZONING 2-ZONE ADD-ON
PART #: S1-MZA2
S1-MZA2


 
List Price: $222.21
Our Price: $144.66
Savings: $77.55
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Warning: Gas Valves, Circuit Boards (all replacement parts) Should Be Installed By A Licensed Professional. FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE!

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Product Code: S1-MZA2
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Description
 

Source 1 Two-Zone Add-On Module

A two-zone expansion panel used to add zones onto an S1-MZS4 Zone Control Panel. The S1-MZA2 requires its own separate
24 Volt AC transformer. The panel also includes a modular jack cord which connects the S1-MZA2 with the main S1-MZS4
panel. The S1- MZA2 is NOT a stand alone zoning panel and is used only as an expansion panel for one or two additional
zones when using the S1-MZS4 as the main zoning panel.When either zone thermostat calls, for either Cooling or Heating, the
S1-MZA2 panel will take the call and look at the S1-MZS4 status. If there are no other calls open the damper to that zone, if not
already open, close the dampers to the zones that are not calling for the same mode and activate the appropriate heating or
cooling on the HVAC Unit. If other zones call for the same mode, the S1-MZS4 panel will allow these calls and open these zone
dampers until all zones are satisfied, unless there are calls from other zones for the opposite mode.When there are opposing
calls, the S1-MZS4 panel has a design of intelligent changeover that can allow those zones to satisfy or eventually switch over
to the opposite mode if there are calls for the opposite mode, based on the number of those zones calling.The S1-MZS4 panel
also can control two-stage and heat pump systems using single stage thermostats. This substantially reduces the overall cost
of the zone system by using less expensive conventional single stage thermostats. The S1-MZS4 has a built-in timer that once
a call is made the timer begins and if the demand is not satisfied within that period of time the second stage will be activated
until the call is satisfied. The second stage can also be activated based on the number of zones calling in place of the timer.
The only time a heat pump thermostat is necessary is when it is desired to control the Emergency Heat from each zone’s
thermostat.
Features:
• Two Zone Expansion Panel
• Modular Jacks for Easy Add-On Connection
• Color-Coded Screwless Terminal Blocks
• Individual Zone Indicating Lights
• Indicator LEDs for System Operation
• Expand Systems up to 10 Zones
Panel Specifications
Construction: ABS plastic
Number of Zones: 2 Expansion
Dimensions: 7-5/8”x 7-1/4” x 1-3/8”
Voltage: 24 VAC, 50/60 Hz
Temperature Rating: 0°F to 120°F Operating, –20°F to 140°F Storage
Humidity: 5% to 95% Non-Condensing
Connection: Screwless push-in terminal Blocks

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