EMM-3U UNIVERSAL ELECTRONIC MINIZONE™ PANEL
9
68-0237-2
Fig. 13. EMM-3U System wiring diagram.
Fig. 14. Conventional single-stage single transformer
system wiring diagram.
Fig. 15. EMM-3U oil heating wiring diagram.
M14763A
ZONE
THERMOSTATS
ZONE DAMPER MOTORS
M1 - common
M4 - power open
M6 - power closed
24 Volt Equipment
Transformer(s)
MOMENTARY PUSHBUTTON SWITCHES:
BOOT
USED TO CLEAR THE SYSTEM AND MICROPROCESSOR.
PURGE OVERRIDE USED TO BYPASS THE PURGE CYCLE WHILE TROUBLESHOOTING.
DIP SWITCH SETTINGS
1 STAGE TIMER
2 STAGE TIMER
ON OFF
3 STAGE TIMER
1
0
TABLE
4 SYSTEM TYPE
CONV
HEAT PUMP
5 ZMS HIGH LIMIT
160 F
120 F
6 ZMS LOW LIMIT
40 F
48 F
7 HEAT FAN
HVAC
PANEL
8 PURGE FAN
HVAC
PANEL
9 PURGE DAMPER
NO CHG OPEN
10 PURGE TIME
2.0 MIN
3.5 MIN
11 EM HEAT FAN
HVAC
PANEL
12 2ND STAGE EM HEAT
YES
NO
SEE
TABLE
#1 #2 #3 TIME
1 1 1 5
MIN
1 1 0 10
MIN
1 0 1 15
MIN
1 0 0 20
MIN
0 1 1 30
MIN
0 1 0 45
MIN
0 0 1 60
MIN
0 0 0 NO
TIMER
LED STATES:
RED HEAT LED
HEATING MODE
GREEN COOL LED
COOLING MODE
YELLOW PURGE LED
PURGE MODE
GREEN FAN LED
FAN MODE
RED EM HEAT LED
EM HEAT MODE
FLASHING RED HEAT LED
ZMS SENSOR EXCEEDS HIGH LIMIT IN HEATING
FLASHING GREEN COOL LED
ZMS SENSOR EXCEEDS LOW LIMIT IN COOLING
FLASHING YELLOW PURGE LED NO ZMS SENSOR INSTALLED OR ZMS SENSOR FAILURE
ZONE LEDS
ON (GREEN COLOR)
DAMPER IS OPEN OR OPENING
OFF (NO COLOR)
DAMPER IS CLOSED OR CLOSING
R
C
R
H
W
1
W
2
E
BOOT
PURGE
OVERRIDE
Single Transformer
Heating/Cooling
systems require a
jumper to be installed
connecting R
H
and R
C
(factory installed).
1 C terminal
connection is not
required on battery
powered,
power
stealing, or some
electromechanical
thermostats.
2 Leave jumper
disconnected
for
conventional
thermostats.
Discharge Air
Temperature
Sensor
(See C7735
Installation
Instructions
for further
information.)
R
C
DATS
DATS
OFF
ON
EM
HEAT
B
O
Y
1
Y
2
G
Cooling Transformer
Heating Transformer
First Stage Heat Relay
Second Stage Heat Relay
First Stage Cool Relay
Second Stage Cool Relay
Fan Relay
This diagram shows the typical
two-stage equipment, thermostat,
and damper motor connections.
For specific wiring for other
thermostats, damper motors, and
HVAC Equipment, refer to the
Installation Instructions.
4
5
6
Z
1
2
3 X
Power-open
Power-closed
(Opposed Blade
Damper Motors)
G W2 Y2
M6M4M1
G
Y1
Y1
W1
C
R
R
C
W2 Y2
L
1
Zone 1 Thermostat
ZONE 3
G W2 Y2
M6M4M1
G
Y1
Y1
W1
C
R
R
C
W2 Y2
L
Zone 2 Thermostat
ZONE 2
G W2 Y2
M6M4M1
G
Y1
Y1
W1
C
R
R
C
W2 Y2
L
Zone 3 Thermostat
ZONE 1
C R
Power-closed
Spring-open
(Model ZD)
Power-closed
Spring-open
(Model ARD)
24 Volt 40VA
Transformer
24V AC
40VA
R
C
/R
H
JUMPER
ZONE PANEL
TRANSFORMER
HEAT
COOL
PURGE
FAN
EM. HEAT ZONE 1
ZONE 2
ZONE 3
EQUIPMENT
1
O
N
2 3 4 5 6 7 8 9 101112
2
2
2
1
1
2
2
2
O/B
W1/E
O/B
W1/E
O/B
W1/E
TRANSFORMER
HEAT
RELAY
L1
(HOT)
L2
COOLING
CONTACTOR
FAN
RELAY
M14766A
LEAVE FACTORY INSTALLED R
H
TO R
C
JUMPER IN PLACE
FOR SINGLE TRANSFORMER SYSTEM.
1
R
C
R
H
W
1
W
2
E
B
O
Y
1
Y
2
G
PANEL
1
T
T
24V
OIL PRIMARY
FAN
RELAY
COOLING
CONTACTOR
M14764A
REMOVE FACTORY INSTALLED R
H
TO R
C
JUMPER.
1
1
L1
(HOT)
L2
L1
(HOT)
L2
R
C
R
H
W
1
W
2
E
B
O
Y
1
Y
2
G
PANEL