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EMM-3 ELECTRONIC MINIZONE™ PANEL
24 Volt Equipment
Transformer(s)
Heating Transformer
Cooling Transformer
Cool Relay
Heat Relay
Fan Relay
Single Transformer
Heating/Cooling systems
require a jumper to be installed
between R
and R
H
C
(factory installed).
This diagram shows the typical single
stage equipment, thermostat, and
damper motor connections. For specific
wiring for other thermostats, damper
motors, and HVAC Equipment,
refer to the Installation Instructions.
L1
OIL PRIMARY
(HOT)
T
T
L2
COOLING
CONTACTOR
L1
(HOT)
24V
L2
REMOVE FACTORY INSTALLED R
1
Fig. 4. EMM-3 oil heating, electrical
cooling wiring diagram.
68-3041-2
SYSTEM
ZONE 1 ZONE 2
LED
DAMPER STATUS LEDS
LED STATES:
SYSTEM LED
RED
GREEN
ORANGE
FLASHING RED
R
FLASHING GREEN
H
FLASHING ORANGE NO ZoneMAX SENSOR INSTALLED
R
C
Y
DAMPER STATUS LEDS
ON (GREEN COLOR) DAMPER IS OPEN OR OPENING
W
OFF (NO COLOR)
G
EQUIPMENT
MOMENTARY PUSHBUTTON SWITCHES:
BOOT
PURGE OVERRIDE USE THIS SWITCH TO BYPASS THE PURGE
ZONE 1
R Y W G C M6 M4 M1
*
R Y W G
C
Zone 1 Thermostat
4 5 6 Z
1 2 3 X
Power-open
Power-closed
(Opposed Blade
Fig. 3. EMM-3 system wiring diagram.
PANEL
R
H
R
C
1
Y
W
FAN
G
RELAY
TO R
JUMPER.
H
C
M13537
ZONE 3
BOOT
PURGE
OVERRIDE
HEATING MODE
COOLING MODE
PURGE MODE
ZMS SENSOR EXCEEDS HIGH LIMIT IN HEATING
ZMS SENSOR EXCEEDS LOW LIMIT IN COOLING
OR ZoneMAX SENSOR FAILURE
DAMPER IS CLOSED OR CLOSING
USE THIS SWITCH TO CLEAR THE SYSTEM
AND CLEAR THE MICROPROCESSOR.
CYCLE WHILE TROUBLESHOOTING THE SYSTEM.
ZONE 2
R Y W G C M6 M4 M1
R Y W G C M6 M4 M1
*
R Y
W G C
R Y W G C
Zone 2 Thermostat
Zone 3 Thermostat
Power-closed
Power-closed
Spring-open
Spring-open
(Model ZD)
(Model ARD)
HEATING
L1
TRANSFORMER
(HOT)
L2
COOLING
L1
TRANSFORMER
(HOT)
L2
1
REMOVE FACTORY INSTALLED R
Fig. 5. Two-transformer system wiring diagram.
L1
TRANSFORMER
(HOT)
L2
INSTALL JUMPER BETWEEN R
1
Fig. 6. Single transformer system wiring diagram.
6
Discharge Air
Temperature
Sensor
ZMS
ZMS
(See C7735
ZONEMAX
Installation Instructions
for further information.)
ZONE PANEL
TRANSFORMER
R
C
24VAC
40VA
C R
24 Volt 40VA
Transformer
ZONE 3
*
ZONE
THERMOSTATS
C terminal connection is not
*
required on battery powered,
power stealing, or some
electromechanical thermostats.
ZONE DAMPER MOTORS
M1 - common
M4 - power open
M6 - power closed
PANEL
R
H
HEAT
R
RELAY
C
1
Y
W
G
COOLING
CONTACTOR
FAN
RELAY
TO R
JUMPER.
H
C
PANEL
R
H
COOLING
R
C
CONTACTOR
Y
HEAT
RELAY
W
FAN
G
RELAY
AND R
.
H
C
M13538
1
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