TS-27: Sage Zone Control - Circulator Panel

Determine why there is no voltage to L1 & L2 and make repairs. Caution: make sure the voltage to the Sage Zone Control is the same circuit the boiler is on.

Done

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#G18

Check 120Vac input voltage fuse #6 from left to right for continuity. Do you have continuity?

Yes No

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#G24

Turn up a thermostat or multiple thermostats.

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#M3

Verify there is a demand for heat on at least one zone. Is there a demand?

Yes No

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#M7

Is the zone light on for the problem zone?

Yes No

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#M13

Possible loss of communication between the SZC and the boiler. Press the status button, scroll to the right about 4 screens, do you see a screen that is headed with” Zone Control Status”. Is that display available?

Yes No See sequence & display

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#M20

Did a zone light come on?

Yes No

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#S7

Place a jumper between the thermostat connections for the zone terminals R & W. Did the light come on?

Yes No

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#S13

Possible defective cat-5 cable. If you have a new cat-5 cable replace the cable. If not you can wire the 3 envirocom terminals in the control to the boiler envirocom terminals on the Low Voltage Board on the boiler. Wire terminals 1-1, 2-2 and 3-3. Did the display show up in the Staut menu? It may take a minute or two.

Yes No

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#S20

Did the circulator start for that zone?

Yes No

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#X7

Replace SZC.

Done

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#X13

Cat-5 cable was bad. Problem is resolved.

Done

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#Z20

Press the status button on the display. About 3/4 of the way down on the display is Priority. It should display Central heat in a few seconds. The very bottom line should be sequencing through the start up process with a counter. When the boiler displays direct ignition the boiler should fire and then display running. Did the boiler turn on and fire?

Yes No See Display

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#AD7

Zone panel is working as designed.

Done

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#AJ7

Using an electrical meter check voltage across the circulator terminals for the zone(s) not operating. You should read 110 – 130Vac. Do you have the proper voltage?

Yes No

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#AJ12

Did the Status screen Priority label show Central Heat or Domestic How Water if the demand Is on zone 4 and set to priority?

Yes No See Display

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#AP7

Check Voltage at the appropriate circulator. Is there 120Vac at the circulator?

Yes No

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#AP12

Zone panel working correctly. If boiler does not light this is a boiler issue. Go to main menu and choose Boiler does not light or lights or lights and goes out immediately.

Done

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#AX7

Replace circulator

Done

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#AX12

Check or replace the wire from the zone panel to the circulator.

Done

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#BA12

Replace fuse.