Type EZC-12 for 230V and EZC-32 for 24V
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Microcenter type EZC

  • Recommended for control of underfloor heating in hydronic installations
  • Connection of up to 8 thermostats
  • Connection of up to 8 actuators
  • Versions for 230V AC or 24V AC connection
  • Demand controlled pump relay
  • Demand controlled relay for heating source (boiler)
  • Built-in switch
 

Applications
EZC microcenter is suitable for connecting multiple room thermostats and electric actuators (thermoheads) on, for example, an underfloor heating system. An external time control can be connected for either switching off the installation during night times, or for generating night setback signal to the thermostats. It is permissible to connect more than 1 head to a single terminal, provided that both heads are to be controlled by the same room thermostat.

- LED 1. Main power is connected

- LED 2. Heat demand

 

Applications using time control

  1. EZC with remote clock switching off the installation during night times.
  2. EZC with remote clock making night setback(NSB).
  3. EZC without any clock function.

Application EZC with remote clock switching of the installation during night times
Connecting a s.p.s.t. time switch across the time channel terminals I & O in place of the factory fitted link, gives a time control option for all the thermostats connected to the EZC. If the time channel terminals are linked the thermostats have power connected and will regulate according to the thermostats setpoints. If the time channels are "open" the power to the thermostats is disconnected and the thermostats are not in operation.

Application EZC with remote clock making night setback(NSB)
Connect a cable for the NSB signal from the EZC to the thermostats if a night setback function is required. The Brunton Electronics type MTU has night setback options. We recommend using this thermostat.

Application EZC without any clock functions
Connect a link wire across the time channel terminals I & O. The EZC will maintain power to the thermostats and if heating demands arise open the thermohead and activate the demand relays.

 

Product program:

 

Type

 

Supply

Connections

Thermoheads

Thermostats

EZC-12-8

230V AC

8

8

EZC-12-4

230V AC

4

4

EZC-32-8

24V AC

8

8

EZC-32-4

24V AC

4

4

 

 

 

 EZC microcenter is delivered incl. cover type ETT-KH

 

Thermostats
The Brunton Electronics type MTU thermostat is recommended. For further information see MTU for Wall Mounting

 

Pump output
The EZC has a volt free relay output for pump control that will be energised when any connected room thermostat calls for heat.

 

Demand output
The EZC has a second volt free relay output that can be used to enable a boiler, or to open a motorised valve.

 

Technical data:

 

Type

 

Supply

 

Input

 

Output

Input time switch

EZC-12-8

230V AC ±10%, 50-60Hz

8 x 230V AC

8 x 230V AC, max. 2A

230V AC

EZC-12-4

4 x 230V AC

4 x 230V AC, max. 2A

EZC-32-8

24V AC ± 10%, 50-60Hz

8 x 24V AC

8 x 24V AC, max. 2A

24V AC

EZC-32-4

4 x 24V AC

4 x 24V AC, max. 2A

Max output total for actuators

10A

Pump and demand relay

2 x SPST, volt free 24V AC max. 6A or 230V AC max. 6A

Interrupter, main supply

Only EZC-12-8 and EZC 32-8