Honeywell MiniZone EMM-3U - Page 9

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 FAILUR E
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
S
econd Stage Heat Relay
First Stage Cool Relay
Second Stage Cool Relay
Fan Relay
T
his diagram shows the typical
t
wo-stage equipment, thermostat,
a
nd damper motor connections.
F
or specific wiring for other
t
hermostats, damper motors, and
H
VAC Equipment, refer to the
I
nstallation Instructions.
456Z
123X
Power-open
Power-closed
(Opposed Blade
Damper Motors)
G W2Y2 M6M4M1
G
Y1
Y1W1
C
R
R
CW2Y2
L
1
Zone 1 Thermostat
ZONE 3
G W2Y2 M6M4M1
G
Y1
Y1W1
C
R
R
CW2Y2
L
Zone 2 Thermostat
ZONE 2
G W2Y2 M6M4M1
G
Y1
Y1W1
C
R
R
CW2Y2
L
Zone 3 Thermostat
ZONE 1
CR
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
222
1 12 2 2
O/BW1/E O/BW1/E O/BW1/E
TRANSFORMER
HEAT
RELAY
L
1
(
HOT)
L
2
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