Aprilaire 6504 Basic Operation of Your Zoned Comfort Control System, Hvac Control Details

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BASIC OPERATION OF YOUR ZONED COMFORT CONTROL SYSTEM

Your Aprilaire Zoned Comfort System will allow you to increase your comfort by directing conditioned air to separate areas (zones) based upon each zones thermostat setting. To operate the system, just set or program each zones thermostat to your desired comfort and set-back settings.

When there is a heating or cooling call from any zone, the appropriate heating or cooling equipment will be turned on. The dampers in zones not requiring heating or cooling will close and the conditioned air will be directed to the calling zone(s) until the thermostat is satisfied.

Aprilaire Zoned Comfort Control is a heat call priority system. This means that there are certain times when heating calls will take precedence over cooling calls. This occurs if two calls for opposing modes exist simultaneously while the system is idle, in which case the heat call will be satisfied first. In all other cases a first-call, first-serve approach is taken satisfying the zone(s) that call first. If, however, a call for opposing mode exists for a minimum of 20 minutes during equipment operation, the system with shut down for an equipment protection minimum off time then changeover to satisfy the new call. The heating and cooling equipment will not operate at the same time.

Your zone control system is designed to direct conditioned air only to the rooms served by that zone’s thermostat. However, due to the open design of today’s homes, it may not be possible to maintain drastic temperature differences between zones. Closing interior doors is a good way to reduce the air exchange between zones and increase the temperature difference between them.

The following sections describe how to make Heating, Cooling, and Emergency Heat calls as well as how your Aprilaire Intelligent Zoned Comfort Control System can control the other pieces of your HVAC system.

HVAC CONTROL DETAILS

HEATING OPERATION (ALL MODELS OF EQUIPMENT)

To start heating:

1.Set your Model 8570 programmable thermostat to the Heat mode. This is accomplished by selecting HEAT from the Mode Menu. Consult the Model 8570 Owner’s Manual for details.

03/31/04 8:32 AM￿

 

OUTDOOR￿

OFF￿

20˚￿

FAN AUTO￿

71˚￿

INFO￿ MENU￿

MAIN MENU￿

SET DATE AND TIME￿ HOLD￿

PROGRAM￿ FAN￿

MODE - HEAT/COOL/ETC.￿

SETTINGS￿

EXIT￿ SELECT￿

MODE MENU￿

OFF￿

AUTO￿

HEAT￿

COOL￿

EMERGENCY HEAT￿

BACK￿ SELECT￿

03/31/04 8:32 AM￿

 

OUTDOOR￿

HEAT MODE￿

20˚￿

FAN AUTO￿

71˚￿SETPOINT￿ HEAT 70￿

INFO￿ MENU￿

2.Adjust the thermostat set point to a temperature higher than the displayed room temperature, using the Up button, so that a Heat call is initiated. Again, consult your thermostat Owner’s Manual for details on how to do this properly.

03/31/04 8:32 AM

 

OUTDOOR

HEAT MODE

20˚￿

FAN AUTO

HOLD THIS

TEMPERATURE UNTIL 4:00PM

HOLD TIL 4:00PM

 

OUTDOOR

HEATING

20˚￿

FAN ON

68˚￿

INFO MENU

SETPOINT HEAT 68

HEAT

72˚￿

BACK SAVE

68˚￿SETPOINT HEAT 72

RESUME PROG. MENU

The LED labeled “HEAT”, on the zone panel enclosure will indicate if the board is making a call for heat. If the equipment does not come on right away, it may be due to the minimum-off time delay. Four minutes must elapse after the last heating cycle before it can come on again. This built in feature ensures that the heating equipment does not cycle too frequently, shortening the life of the equipment.

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Contents Model Includes Operating Instructions Warranty Information Read and Save These InstructionsTable of Contents Model 6504 Intelligent Zoned Comfort Control Panel Electronic AIR Cleaners EACModel 8570 Premium Thermostat DampersIntelligent Zoned Comfort Control Model 6504 System Model 6504 Control PanelModel 6504 Control Panel LED Description LED Color Status This MEANS…Basic Operation of Your Zoned Comfort Control System Hvac Control DetailsHeating Operation ALL Models of Equipment Cooling Operation ALL Models of Equipment Damper OperationFAN Operation Accessory Control Details Electronic AIR Cleaner OperationVentilation Control Operation Humidifier Operation Intelligent Sharing of Information System Pressure ReliefLimited Warranty Warranty RegistrationIHVAC = Intelligent Solutions for Indoor Air