APRILAIRE MODEL 6404 ZONED COMFORT CONTROL PANEL
WIRING DIAGRAM |
|
|
|
|
|
|
|
|
| ||
|
|
|
|
|
| CONTROL |
|
|
|
|
|
| ZONE 1 | ZONE 2 | ZONE 3 | ZONE 4 | DAMPER | PANEL | HUM | EAC |
| EP_OUT |
|
| POWER | POWER | R | B | |||||||
| COM NC NO COM NC NO COM NC NO COM NC NO | C R | R C |
|
| C A | |||||
HVAC | B |
|
|
|
|
|
|
|
|
|
|
O |
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
| |
| W2 |
|
|
|
|
|
|
|
|
|
|
EQUIPMENT | Y2 |
|
|
|
|
|
|
|
|
|
|
W1 |
|
|
|
|
|
|
|
|
|
| |
| Y1 |
|
|
|
|
|
|
|
|
|
|
| G |
|
|
|
|
|
|
|
|
|
|
| RH |
|
|
|
|
|
|
|
|
|
|
| RC |
|
|
|
|
|
|
|
| POWER | |
|
|
|
|
|
|
|
|
|
|
|
| R |
|
|
|
|
|
| HUM |
| C |
|
|
|
|
|
| |
ZONE1 |
|
|
| FUSE |
| LED’s |
| |
O |
|
|
|
|
| |||
| W |
|
|
|
|
|
|
|
| Y |
|
|
|
|
|
| EAC |
| B |
|
|
|
|
|
| |
|
|
|
|
|
| VISIBLE |
| |
| R |
|
|
|
|
|
| |
| G |
|
|
|
|
|
| HEATING |
ZONE 2 ZONE3 | 2S | THERMOSTATCONNECTIONS |
|
|
|
| THROUGH THEENCLOSURE |
|
2S | B | A |
|
| COOLING | |||
| C |
|
|
|
|
|
| |
| W |
|
|
|
|
|
|
|
| Y |
|
| ON OFF |
|
|
| FAN ON |
| O |
| ZONE 1 | ANY ZONE |
|
| ||
| G |
| HEAT PUMP | HEAT/COOL |
|
| ||
| 2S |
| ELECTRIC | GAS |
|
|
|
|
|
| NO PURGE | PURGE |
|
| VAC | ||
| R |
| ON OFF |
|
|
|
| |
| C | T.D.O. | D | C | #ZONES TO STAGE |
|
| |
| W | B | A |
| ||||
|
|
|
| |||||
|
| 45 | CL:40 | PLENUM SENSOR |
| |||
| Y |
|
|
| ||||
| (TIME DELAY | 140 | HT:170 |
|
| |||
| O |
|
|
|
|
|
| |
| OVERRIDE) |
| ON OFF |
|
|
| ZONE 1 | |
| G |
|
|
|
| |||
|
| D | C | STAGE MINUTES |
| |||
|
|
|
|
| ||||
|
|
|
|
|
|
| ||
| R |
| D | C | AUX. MINUTES |
| ZONE 2 | |
|
| B | A |
|
|
| ||
| C |
|
|
|
|
|
|
|
ZONE | W |
|
|
|
|
|
|
|
Y |
| SPARE FUSE |
|
|
| ZONE 3 | ||
|
|
|
|
| ||||
4 | O |
|
|
|
|
|
|
|
G | PLENUM |
|
|
|
|
|
| |
|
| ZONE/VAC |
| ZONE 4 | ||||
| 2S | SENSOR |
|
| ||||
|
| SELECTOR | SELECTOR |
| ||||
|
|
|
|
|
| |||
|
|
|
| OFF/ON | OFF/ON |
|
|
CONTROL PANEL
TERMINAL DESIGNATIONS
R24V (hot) Thermostat voltage
C 24V (com)
G Fan (thermostats and equipment)
Y/Y1 | 1st Stage Cooling or Compressor |
| (thermostats and equipment) |
W/W1 | 1st Stage Heat or Auxiliary Heat |
| (thermostats and equipment) |
Y2 | 2nd Stage Cooling or Compressor |
| (equipment) |
W2 | 2nd Stage Heat or Emergency Heat |
| (equipment) |
OReversing
B Reversing
2S 2nd Stage Heat and/or 2nd Stage Cool (thermostats)
NC | Normally closed damper output |
NO | Normally open damper output |
24VAC | 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 |
PRODUCT SPECIFICATIONS
|
|
|
|
| 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 |
|
| ||
|
|
|
|
TRANSFORMER
REQUIREMENTS
| MAX. # OF |
| POWERED |
REQUIRED VA | DAMPERS |
40 | 3 or Less |
75 | 4 thru 6 |
40 per 3 Dampers | 7 or more |
|
|
ADDITIONAL INSTALLATION FEATURES
• 45 degree angled terminals | • Fuse protection with extra fuse |
• Enclosure accommodates wiring from the side or rear | • Convenient control of |
• Wiring diagram on front cover | • Selectable - any zone sets mode or zone 1 sets mode |
• Available common terminal for 24 volt powered stats | • |
• Compatible with | electric or fossil fuel furnaces |
PO Box 1467 • Madison, WI
Form No. 5034 50.06.04 Printed in U.S.A. | ©2004 Research Products Corporation |