Page 32 - Zone Control Product Guide

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32
APRILAIRE MODEL 6404 CONTROL PANEL
CONTROL PANEL
TERMINAL DESIGNATIONS
RATED VOLTAGE
20
to 30 VAC
RATED CURRENT
3
amp
FUSE RATING
3
amp, slow blow fuse
MAXIMUM AMBIENT TEMPERATURE
140
˚F
RH AND RC TERMINALS
Independent heat and cool relays for
2
transformer systems
PLENUM SENSOR
HIGH LIMIT TEMPERATURE
Selectable between 140˚F and 170˚F
PLENUM SENSOR
LOW LIMIT TEMPERATURE
Selectable between 40˚F and 45˚F
PRODUCT SPECIFICATIONS
ADDITIONAL INSTALLATION FEATURES
45
degree angled terminals
Enclosure accommodates wiring from the side or rear
Wiring diagram on front cover
Available common terminal for 24 volt powered stats
Compatible with power-stealing thermostats
Fuse protection with extra fuse
Convenient control of Emergency Heat through thermostat or on
board switch
Selectable - any zone sets mode or zone one sets mode
Electric/non-electric selectable - proper control
of the fan (G-terminal) for either electric or fossil
fuel furnaces
G
RH
RC
Y1
W1
Y2
W2
O
B
G
2
S
O
B
Y
W
C
R
2
S
G
O
Y
W
C
R
2
S
G
O
Y
W
C
R
2
S
G
O
Y
W
C
R
FUSE - 3A
SPARE FUSE
ZONE 1
ZONE 2
ZONE 3
ZONE 4
HVAC EQUIPMENT
PLENUM
SENSOR
T.D.O.
(
TIME DELAY
OVERRIDE)
EAC
HUM
DAMPER
POWER
C R
CONTROL
PANEL
POWER
R C
R C A B
ZONE 1
COM NC NO
EP_OUT
ZONE 2
COM NC NO
ZONE 3
COM NC NO
ZONE 4
COM NC NO
LED’s VISIBLE THROUGH THE ENCLOSURE
POWER
HUM
EAC
HEATING
COOLING
FAN ON
VAC
E-HEAT
ZONE 1
ZONE 2
ZONE 3
ZONE 4
ZONE/VAC
SELECTOR
OFF/ON
E-HEAT
SELECTOR
OFF/ON
THERMOSTAT CONNECTIONS
PLENUM SENSOR
A
OFF ON
C
CL:40
HT:170
D
B
45
140
#
ZONES TO STAGE
A
OFF ON
C
C
A
D
B
D
B
STAGE MINUTES
AUX. MINUTES
HEAT/COOL
OFF ON
ANY ZONE
GAS
PURGE
ZONE 1
HEAT PUMP
ELECTRIC
NO PURGE
R
24
V (hot) Thermostat voltage
C
24
V (com) T-stat (if required) &
damper voltage
G Fan (thermostats and equipment)
Y/Y1 1
st
Stage Cooling or Compressor
(
thermostats and equipment)
W/W1 1
st
Stage Heat or Auxiliary Heat
(
thermostats and equipment)
Y2
2
nd
Stage Cooling or Compressor
(
equipment)
W2
2
nd
Stage Heat or Emergency Heat
(
equipment)
O Reversing Valve—Cool
B Reversing Valve—Heat
2
S 2
nd
Stage Heat and/or 2
nd
Stage Cool
(
thermostats)
NC Normally closed damper output
NO Normally open damper output
24
VAC Voltage source for control panel,
thermostats and dampers
RH Heating transformer—24V (hot)
RC Cooling transformer—24V (hot)
HUM Auxiliary relay active w/ heat calls
EAC Auxiliary relay active w/ blower
operation
A&B Expansion panel connections
MAX. # OF
POWERED
REQUIRED VA
DAMPERS
40
3
or Less
75
4
thru 6
Recommend the 8028 7 or more
Damper Power
Distribution Panel
TRANSFORMER REQUIREMENTS