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(1) Zone 3 damper is open. Zone 3 LED on EMM-3
is green.
(2) Zone 1 and 2 dampers are closed. Zone 1 and 2
LED on EMM-3 are off.
(3) Heating equipment is activated. SYSTEM LED is
red.
System Zone 1
LED
Red
System
Heat on Closed
Operation
(4) Continue wiring the system.
CAUTION
Voltage Hazard.
Can cause electrical shock or equipment damage.
Disconnect power before continuing installation.
13. Reconnect power to EMM-3.
14. Continue troubleshooting system in Cool mode.
a. Set Zone 1 thermostat to Cool mode and Zones 2
and 3 thermostats to off.
b. Zone 1 damper is open. Zone 1 LED on EMM-3 is
green.
c. Zones 1 and 3 dampers are closed. Zones 2 and 3
LED on EMM-3 are off.
d. Cooling equipment is activated. SYSTEM LED is
green.
System
LED
Green
System
Cool on
Operation
e. Repeat procedure for zones 2 and 3. Continue wir-
ing the system.
Zone 2 Zone 3
Off
Off
Green
Closed
Open
Zone 1
Zone 2
Zone 3
Green
Off
Off
Open
Closed
Closed
EMM-3 ELECTRONIC MINIZONE™ PANEL
CAUTION
Voltage Hazard.
Can cause electrical shock or equipment damage.
Disconnect power before continuing installation.
15. Reconnect power to EMM-3
16. Check out fan operation.
a. Set Zone 1 thermostat fan switch to On, and Zones
2 and 3 thermostats to Auto.
b. Zone 1 damper is open. Zone 1 LED on EMM-3 is
green.
c. Zones 2 and 3 dampers are closed. Zones 2 and 3
LED on EMM-3 are off.
d. Fan equipment is activated. SYSTEM LED is off.
LED
System
Operation
e. Repeat procedure for zones 2 and 3. Continue wir-
ing the system.
CAUTION
Voltage Hazard.
Can cause electrical shock or equipment damage.
Disconnect power before continuing installation.
17. Connect DATS Sensor to EMM-3 (optional).
a. Reconnect power to EMM-3.
b. If system is in Purge mode, press PURGE OVER-
RIDE on EMM-3.
c. Verify SYSTEM LED is no longer flashing. This con-
firms proper DATS operation. (Flashing occurs in
Idle and Fan modes only.)
5
System
Zone 1
Zone 2
Off
Green
Off
Fan on
Open
Closed
Zone 3
Off
Closed
68-3041-2
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