MODEL 3000 / ACCESS 4000 Programmer s Manual - Aircon. Rev 4.50 [MENU 7-5-6] p 1 Air Conditioning Control Introduction Air Cond. to program : AC001 NOTE: Control Module Firmware must be V2.00 or later. The ACCESS 4000 can control a number of air conditioning units depending on memory configuration. Each air conditioning unit can service up to 8 individually controlled air conditioning zones. Each air conditioning zone has its own thermostat and its own zone damper which controls air flow into that air conditioning zone. The thermostats can either signal warm air, cool air, deadband (halfway between warm and cool) or off. The individual zone dampers can be closed, not supplying air, or open and supplying air. The Access 4000 reads the thermostats via zone inputs, one zone input per thermostat. Zone dampers are controlled by Auxiliary outputs, one Auxiliary output per zone damper. The system is controlled by four special control inputs connected via four nominated concept zone inputs. The state of these zones tells the air conditioning system how it should behave. The compressor sub-system is controlled by five nominated Auxiliary outputs. These outputs signal when the compressor should be on and whether heating or cooling is required. An optional bypass damper may be provided which allows a proportion of air to by-pass the main compressor/fan when the number of zones requiring air drops below a certain number. The damper is controlled via an Access 4000 Auxiliary. Zone Damper An optional fresh air damper and fresh air thermostat may be provided. If the fresh air temperature is more optimum for heating/cooling, the fresh air damper will be opened. The fresh air thermostat connects via an Access 4000 zone whilst the damper is controlled via an Access 4000 Auxiliary. Inputs and Outputs A motorised vane within a duct to control air flow to an air conditioned zone. When the auxiliary is on, power is applied to the motor which closes the damper, preventing air flow into the zone. 5. System Bypass Damper Fresh Air Damper Exhaust Air Damper Zone Thermostat A motorised vane within a duct to control air flow around the compressor unit. When the Auxiliary is on, power is applied to the motor which closes the damper, causing all air to pass through the compressor sub-system. When the bypass damper is open, a proportion of air passes around the compressor. A motorised vane within a duct to control fresh air flow into the compressor subsystem. When the Auxiliary is on, power is applied to the motor which closes the damper, causing all air to be recirculated air. When the fresh air damper is open, a greater proportion of fresh air is used. A motorised vane within a duct to control whether returned air is re-circulated or exhausted. When the auxiliary is on, power is applied to the motor which closes the re-circulate damper and opens the exhaust damper, causing air to be exhausted. A device to measure the temperature of an air conditioned zone and input temperature to the Access 4000 via a zone input. The thermostat is wired such that: Cool temperature - zone will be sealed Warm temperature - zone will be in alarm Dead-band - zone will be in tamper mode
[MENU 7-5-6] p 2 MODEL 3000 / ACCESS 4000 Programmer s Manual - Aircon. Rev 4.50 Fresh Air Thermostat Dead-band Compressor On/Off Input Compressor Reverse Cycle On/Off Compressor Fan On/Auto Input System On/Off Input A device to measure the temperature of fresh air to deduce whether the fresh air damper should be open or closed. Wired the same way as zone thermostats. The state of a thermostat when it is signalling neither warm or cool air. An input to the compressor sub-system connected to an Access 4000 Auxiliary. When the Auxiliary is on, the compressor is on. An input to the compressor sub-system connected to an Access 4000 Auxiliary. When the Auxiliary is on, reverse cycle heating is selected. When the Auxiliary is off, compressive cooling is selected. An input to the compressor sub-system connected to an Access 4000 Auxiliary. When the Auxiliary is on, the fan turns on continuously. When the Auxiliary is off, the fan will only turn on when the compressor is on. A three state zone input used to control the system. The states are: Zone sealed - Compressive cooling allowed Zone in alarm - Compressor Heating allowed Zone in tamper - Compressor Off In Industrial Mode, cooling or heating is allowed when the zone is not in tamper. Recirculated/Fresh Input A three state zone input used to control fresh or recirculated air selection. The states are: Zone sealed - Select recirculated air Zone in alarm - Select fresh air Zone in tamper - Select fresh/recirculated air automatically. Fan Mode Input A 3 state zone input used to control fan operation. The states are: Zone sealed - Turn fan on continuously (ventilation) Zone in alarm - Turn fan on in Heat Pump mode Zone in tamper - Fan controlled automatically. Programming Programming is carried out under the Installer System menu. After entering the Installer code, press MENU, 7, 5, 6 to access air conditioning module programming. Air Cond. To program: AC001 AC001 Mode -> Disabled Disabled This screen selects which air conditioning module you wish to programme. The number of air conditioning modules available depends on configuration. (Pressing the up arrow will select the maximum module number, telling you how many modules are present). This screen selects the overall operating logic mode for this air conditioning module. The table below summarised the modes: No control performed.
MODEL 3000 / ACCESS 4000 Programmer s Manual - Aircon. Rev 4.50 [MENU 7-5-6] p 3 Industrial Domestic Selects a mode suitable for industrial situations where the compressor can swap between heat and cool automatically. The fan is on all the time to provide continuous ventilation. Selects a mode suitable for domestic situations where the compressor can only heat or cool as selected. The fan is only on when the compressor is on unless a ventilate only mode is selected. AC001 Min. On Time: 000 min AC001 Min. Off Time: 000 min AC001 Number of Zones: 0 AC001 Return Air Zone: 0 This screen allows the compressor minimum on time to be selected in minutes. The compressor will remain on for this time regardless of whether heating or cooling is still required. See the compressor manufacturer s specifications for this value. This screen allows the compressor minimum off time to be selected in minutes. The compressor will remain off for this time regardless of whether heating or cooling is required. See the compressor manufacturer s specifications for this value. This option sets the number of individual zones that this air conditioning unit will control, i.e. number of thermostats fitted (excluding fresh air). It may be set to between 1 and 8 zones. This option sets which zone has the return air duct. If this option is left at zero then the air duct is not associated with any particular zone. If it is set to a valid zone, the zone damper can be forced to remain open with the force return air zone option. Additionally, defining this zone allows domestic heat pump mode to be implemented. AC001 Zones for Bypass: 0 This option sets the minimum number of zone dampers that can be open before the compressor bypass damper will be closed. If less than this number of zone dampers are open, the bypass damper output will turn off thus opening the bypass damper to lessen air flow from the fan. If this option is left at 0, the bypass damper will remain closed. 5. System AC001 Options D T F N DTFN nnnn Domestic Heat & Cool Terminals Free Return Air No Review This screen allows special options to be set up for the current air conditioning module. A Y under the option enables the option. The available options are listed below: Selects a mode for domestic situations where the compressor can swap between heat and cool automatically. As with normal Domestic mode operation, the fan is on only when the compressor is on unless a ventilate only mode is selected. Enabling this option allows the air conditioning to be controlled by nominated LCD Terminals instead of control inputs. The control inputs will be ignored, except for the fresh air thermostat. (See Terminal Programming for additional options that must be set) Enabling this option will cause the zone damper for the return air zone to always remain open, as long as it has been defined for a valid air conditioning zone. Enabling this option will prevent review messages from being saved for any damper or control auxiliary changes. This may be useful if review memory is limited and other review activity such as security information is more important.
[MENU 7-5-6] p 4 MODEL 3000 / ACCESS 4000 Programmer s Manual - Aircon. Rev 4.50 AC001 Zn Damper Aux: C01:X01 This screen defines the starting Auxiliary for the zone dampers. Any Auxiliary within the Access 4000 system can be nominated as long as there are enough consecutive Auxiliaries on the module for the number of zones required. When the Auxiliary is on, the damper should be closed. The zone damper auxiliaries run in the order zone1, zone2 etc. AC001 Control Auxes: :X This screen defines the starting Auxiliary for the control Auxiliary outputs. Any Auxiliary within the Access 4000 system can be nominated as long as there are at least 8 consecutive Auxiliaries on the selected module. The table below shows the order of the outputs and what they control. Output Auxiliary Auxiliary On Auxiliary Off Compressor Turn compressor on. Turn compressor off Reverse Cycle Valve Select Reverse Cycle Heating Select Cooling Recirculate/Fresh Select fresh air Select recirculated air. Fan On/Auto Turn on fan continuously Fan controlled by compressor On/Off Bypass Damper Close bypass damper Open bypass damper Exhaust Damper Exhaust re-circulated air Re-circulate air Disable Auxiliary Disable air conditioner Allow air conditioning Smoke Auxiliary Implement smoke mode Allow normal operation The air conditioning module does not control the Disable and Smoke Auxiliaries. These Auxiliaries are manipulated by other tasks in order to control the air conditioning module. AC001 Thermostat Inputs: C01:Z01 This screen defines the starting zone input to connect to the individual zone thermostats. Any zone within the Access 4000 system can be nominated as long as there are enough consecutive zones remaining on the selected module for the number of thermostats required. The thermostats are wired so that: Thermostat Cool = Seal condition. ( 2k2 ) Thermostat Warm = Alarm condition ( 9k [2k2+6k8] ) Thermostat Dead-band = Tamper condition (Open Circuit) Thermostat Off = Tamper condition Cool (Temp is below Thermostat setting) 2k2 9k Warm (Temp is above Thermostat setting) Zone Input AC001 Control Inputs: C01:Z01 This screen defines the starting zone input to connect to the control zone inputs. Any zone within the Access 4000 system can be nominated as long as there are a minimum of 4 consecutive zones available on the selected module. The following table shows the order of the control inputs and the manner in which they operate:
MODEL 3000 / ACCESS 4000 Programmer s Manual - Aircon. Rev 4.50 [MENU 7-5-6] p 5 Input Seal Alarm F resh Air Thermostat F resh air is cool. Fresh air is warm. Heat/Cool Control Heat/Cool allowed if industria l mode and TimeZone above is valid. Cool only allowed in domestic mode, irrespective of TimeZone. Heat/Cool allowed in industrial mode or Heat only allowed in domestic mode. R ecirc/fresh Control U se recirculated air only. Use fresh air only. F an On/Auto Control Fan on continuously. Selects domestic heat pump mode. Tampe r Fresh air is neither warm or cool. No compressor operation is allowed. Automatic selection of fresh/recirculated air based upon fresh air thermostat. Fan operation determined compressor. by NOTES: 1. If the T (Terminal) option is set in the DTFN screen above, these inputs are ignored with the exception of the fresh air thermostat. 2. Every Zone Input and Control Input to be used must be assigned to a physical or virtual Area and that Area must be turned on. Failure to do so will result in the system being unable to sense the status of these inputs and the air conditioning not operating properly. AC001 T.Zone -> DAYTIME This screen allows an optional TimeZone to control the on/off operation of the air conditioning system in Industrial Mode only when the on/off zone input is in the sealed condition. The system is considered on when the TimeZone is valid. AC001 ZnX Area-> WAREHOUSE This screen allows an optional Area to be assigned to each of the 8 possible air conditioning zones. When an Area is assigned it allows: Individual On/Off control of each zone via an LCD Terminal. Individual On/Off control based upon the Alarm4 Auxiliary of the Area. 5. System Refer to the Building Automation section of this Manual for further details. AC001 12345678 Aux On nnnnnnnn This screen specifies whether an air conditioning zone will be enabled every time the Alarm4 Auxiliary turns on in the associated Area above. Refer to the Building Automation section of this Manual for further details. AC001 12345678 Aux Off nnnnnnnn This screen specifies whether an air conditioning zone will be disabled every time the Alarm4 Auxiliary turns off in the associated Area above. When the T Terminal control option is set, the individual air conditioned zones can be enabled or disabled via the LCD screen. In Industrial Mode, however, there are no inputs to allow individual enable/disable control of individual zones. Whenever the air conditioner mode is set to disabled, all 8 zones are reinstated. This allows individual area control via Alarm4 auxiliaries to be used even if the T Terminal control option is not set, and still provides an override to reinstate all 8 zones.
[MENU 7-5-6] p 6 MODEL 3000 / ACCESS 4000 Programmer s Manual - Aircon. Rev 4.50 Operating Modes Industrial Heating/Cooling A/C Mode = Industrial Heat/Cool Control. = On or Off Recirc/Fresh Control. = Auto Fan Mode. = Not Used If the Heat/Cool control is on, the fan will turn on and compressor operation is allowed. If the Heat/Cool control is off, the fan will turn off, all zone dampers will open and the compressor and reverse cycle valve will be off. Recirculated air will be used unless the fresh air thermostat indicates warm air and heating is required or the fresh air thermostat indicates cool air and cooling is required. (Recirculate/Fresh can be forced if desired using the Recirc/Fresh control). Zone dampers will close if the zone gets too hot and heating is on or if the zone gets too cool and cooling is on, otherwise the zone dampers will be open, providing fan ventilation. The bypass damper will be closed unless the number of closed zone dampers drops below the minimum bypass zones, in which case the bypass damper will open. The Compressor will turn on and reverse cycle valve will turn on/off if any zone requires heating or cooling. The compressor will remain on, heating or cooling until no zone indicates that it is too cool/hot. At this time the reverse cycle will toggle state if the reverse of heat/cool is required, otherwise the compressor will turn off. Domestic Heating/Cooling Mode = Domestic Heat/Cool Control. = Heat/Cool Recirc/Fresh Control. = Auto Fan Mode. = Auto If the Heat/Cool control is set to Heat then compressive heating will be allowed. If the Heat/Cool control is set to Cool then compressive cooling will be allowed. The compressor itself will control the fan. Recirculated air will be used unless the fresh air thermostat indicates warm air and heating is required or the fresh air thermostat indicates cool air and cooling is required. (Recirculate/Fresh can be forced if desired using the Recirc/Fresh control). Zone dampers will close if the zone gets too hot and heating is on or if the zone gets too cool and cooling is on, otherwise the zone dampers will be open. The bypass damper will be closed unless the number of closed zone dampers drops below the minimum bypass zones, in which case the bypass damper will open. The Compressor will turn on and reverse cycle valve will turn on/off if any zone requires heating and Heat is selected or if any zone requires cooling and Cool is selected. The compressor will remain on, heating or cooling until no zone indicates that it is too cool/hot. At this time the compressor will turn off.
MODEL 3000 / ACCESS 4000 Programmer s Manual - Aircon. Rev 4.50 [MENU 7-5-6] p 7 Domestic Ventilation Mode = Domestic Heat/Cool Control. = Off Recirc/Fresh Control. = Recirc/Fresh/Auto Fan Mode. = On In this mode all zone dampers will be open and the fan is on continuously. All zone dampers are open providing ventilation air to all zones. Recirculated air will be used unless the Recirculate/Fresh control is set to Fresh. No compressor operation is allowed. Domestic Heat Pump Mode = Domestic Heat/Cool Control. = Off Recirc/Fresh Control. = Auto Fan Mode. = Heat Pump This mode is used when the return air zone is defined and contains another source of heat such as a wood heater. This mode allows heat from the return air zone to be pumped to other cooler zones without using the compressor for additional heat. The return air zone damper will be forced open and if the return air thermostat indicates warm air in the return zone then the fan will turn on, providing air circulation in the return air zone and allow warm air to be pumped to other zones. If the setting of the return air thermostat indicates cool air, then the fan will turn off. All other zone dampers will be open unless they indicate they are too hot, in which case the zone damper will close. The bypass damper will operate as in other modes and the fresh air damper will be closed. Air-conditioning control via the LCD Terminal 5. System The Air-conditioning module can now be programmed to be controlled via nominated LCD terminals. Instead of overall airconditioning control being done by switches connected to nominated zone inputs, pushing the Left Arrow Key on nominated logged off terminals gives access to screens to allow: Individual A/C zone control by Area names Overall on/off control Control of fan settings Control of ventilation settings Air-conditioning Areas The relationship between air-conditioned zones and security Areas can be defined by allowing a security Area to be associated with an air-conditioned zone in Air-conditioning Module Programming. This allows: Individual A/C zone on/off control via an LCD Terminal, selecting the A/C zone to control by Area name; The Alarm4 Auxiliary in the associated Area attached to an A/C zone can also be programmed to enable or disable the A/C zone. This allows the A/C zone to be controlled by Area functions such as detection of movement or the absence of movement for a pre-defined time.
[MENU 7-5-6] p 8 MODEL 3000 / ACCESS 4000 Programmer s Manual - Aircon. Rev 4.50 Disable Auxiliary When the Disable Auxiliary is turned on, the air conditioning will turn off. When the Disable Auxiliary is turned off, the air conditioning will turn on. This is particularly useful for turning the air conditioning off whilst an area or system is secure and back on again when the area or system is in access. This feature may also be used to immediately shut down all air conditioning auxiliaries, fans and dampers in the event of fire or other such emergency. Smoke Auxiliary If the nominated smoke auxiliary turns on (normally as the result of a smoke alarm) the air conditioner is placed in exhaust smoke mode. In the this mode, irrespective of whether the unit is currently on or off, the following settings are adopted: The fan is turned on. All zone dampers are opened. The re-circulated air is exhausted The fresh air is selected. The compressor is turned off The mode is designed to provide fresh air to all zones and attempt to clear all zones of smoke. Example of Air-conditioning Integration Turn on the air conditioner when there is any movement in the air-conditioned area. Turn off the air conditioner when there has been no movement in the air-conditioned area for 30 minutes. If a nominated area is turned on, then turn off the air conditioner. Program a dummy area as follows: Instant siren mode. A dummy siren auxiliary. Alarm4 auxiliary = Siren auxiliary. No siren list. Siren time = 30 minutes. Zone processing only activates sirens, with re-trigger mode set. Program security area as follows: A dummy close auxiliary = Air conditioner disable auxiliary. Program air conditioner module as follows: Assign dummy area to the appropriate air-conditioned zone to control. Enable auxiliary-on and auxiliary-off options for the appropriate A/C zone. A variation on the above is to turn on the air conditioner manually, but automatically turn it off. Simply don t enable the auxiliary-on option in air conditioner programming. Allow lights to be turned on or off via nominated switches. Implement N-way switching where desired (i.e. a light may be controlled by any number of switches). Whenever a security area is turned on, turn off any lights that are on in that area.
MODEL 3000 / ACCESS 4000 Programmer s Manual - Aircon. Rev 4.50 [MENU 7-5-6] p 9 Turn on and off specified security lights with a time zone. During the night only, allow movement in certain areas to turn on specified lights and when no movement in that area is detected for 10 minutes turn off specified lights. Allow the automatic off to be overridden easily at the keypad when required. Review Messages The review memory can be used to track all logic decisions made by an air conditioning module. All auxiliary output changes are normally saved to review unless nominated otherwise. To aid in tracking logic flow, when auxiliaries are operated via the air conditioning module, a phrase is appended to end of the review entry to indicate what auxiliary is being controlled: Phrase (Zone Damper) (A/C Unit) (R/Cycle) (Fan) (Fresh) (Bypass) (Exhaust) Meaning A zone damper auxiliary has been operated. (On = damper close) The compressor has been turn on/off Compressive heating (auxiliary on) or cooling (auxiliary off) selected Fan has been turn on (auxiliary on) or in auto mode (auxiliary off) Fresh air damper has been opened (auxiliary on) Bypass damper has been closed (auxiliary on) The exhaust output has bee turned on. Changes to the zone and fresh air thermostats and the control inputs are not recorded to review unless they are in an area and the area is turned on. ALL RELEVANT ZONES MUST BE PLACED IN AN AREA AND THE AREA TURNED ON. For zone thermostats and control inputs, the seal, alarm and tamper states must be interpreted appropriately. 5. System
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