User manual HONEYWELL AQ2002 DATASHEET

[. . . ] This system can also be used for a single heating loop equipped with a mixing valve and a pump control without boiler control. Electrical Connections Temperature sensors T2 Mixed water T3 Outside air T5 Boiler supply Optional T1 Remote unit T7044C strap on or T7043F immersion T7043E T7076D insertion or T7043F immersion For boiler potential free connection, please refer to boiler connection section T8102B1001 Full function remote unit including wall plate. SYSTEM 5 Application This system offers intelligent ON/OFF burner and pump control with mixing valve control for radiator or underfloor heating. This system also provides a second pump to meet the demands for domestic hot water. Electrical Connections For boiler potential free connection, please refer to boiler connection section Temperature sensors T2 Mixed water T3 Outside air T4 Domestic hot water T5 Boiler supply Optional T1 Remote unit T7044C strap on or T7043F immersion T7043E T7076D insertion or T7043F immersion T7076D insertion or T7043F immersion T8102B1001 Full function remote unit including wall plate. EN0R 8527 R0 4 AQ2002 Optimiser/Compensator Controller SYSTEM 6 Application This dual loop system offers intelligent ON/OFF burner and pump control for radiator loop and mixing valve control for underfloor loop. Electrical Connections For boiler potential free connection, please refer to boiler connection section Temperature sensors T2 Mixed water T3 Outside air T5 Boiler supply Optional T1 Remote unit T7044C strap on or T7043F immersion T7043E T7076D insertion or T7043F immersion T8102B1001 Full function remote unit including wall plate. SYSTEM 7 Application This dual loop system offers intelligent ON/OFF burner and pump control for radiator loop and mixing valve control for underfloor loop. This system also provides a third pump to meet the demands for domestic hot water. Electrical Connections For boiler potential free connection, please refer to boiler connection section Temperature sensors T2 Mixed water T3 Outside air T4 Domestic hot water T5 Boiler supply Optional T1 Remote unit T7044C strap on or T7043F immersion T7043E T7076D insertion or T7043F immersion T7076D insertion or T7043F immersion T8102B1001 Full function remote unit including wall plate. 5 EN0R 8527 R0 AQ2002 Optimiser/Compensator Controller CONTROLLER FEATURES LCD Display Override Buttons Programming/Operating Buttons Output Status Indicators User Adjustments User Adjustments Installer Adjustments Installer Adjustments System Selector Switches Comfort Setpoint The desired space Comfort temperature can be set within the range 12 to 28°C. Cycle Rate Adjustment The cycle rate adjustment allows the cycle rate as recommended by the boiler manufacturer to be set directly on the controller. Economy Setpoint The desired Economy temperature can be set within the range 8 to 22°C. Economy OFF can be selected by turning the knob to the OFF position. Boiler/Mixed Flow Temperature High Limit In systems with no mixing valve (no T2 sensor) the maximum value of the boiler supply water temperature (T5) can be adjusted by this setting. [. . . ] The sequence can be stopped at any time by moving the service switch to the "0" position. Shading indicates position as supplied from the factory S1 Boiler Minimum Temperature Allows to set the minimum boiler temperature: - Position A: 20°C, no boiler temperature low limit - Position B: 45°C NOTE: Low limit will apply also to the 2nd CH heating zone flow temperature S2 Second time program See table S3 DHW Time Programme Allows to select the timed or continuous operation of DHW. If the S2 is in position B and S3 in position A, DHW will operate according to both heating zone programmes. S4 DHW Operation DHW demand can be served in one of the following modes: - Position A: Priority or Shifting Priority. Please refer to "DHWS Operation" section - Position B: parallel. Please refer to "DHWS Operation" section S5 DHW Actuator Device S5 allows you to configure AQ2002 for systems where diverting valve is used to switch the boiler output to CH or DHW installation. Use of diverting valve is only allowed in systems without mixing valve. - Position A: on DHW demand the DHW pump will be switched on. - Position B: on DHW demand the diverting valve will be driven to DHW position and CH pump will continue to run forcing the flow through the hot water heat exchanger. S6 Type of heating See table SYSTEM SELECTION System selection is achieved in two manners: · Automatic System Selection · System Selector Switches Automatic System Selection The AQ2002 is able to recognize which temperature sensor is connected. · · If a mixed flow water sensor (T2) is connected, the controller assumes that a mixing valve is present. If a Remote Unit (T1) is present the controller activates the space temperature compensation, the optimum Start/Stop and the self-adaptive heating curve (if switch S7 on position A). EN0R 8527 R0 8 AQ2002 Optimiser/Compensator Controller S6 Type of heating See table S7 Adaptive Heating Curve 1 To benefit from this feature a remote unit must be installed. During normal heating periods estimates are made for the heating curve ratio 1. Each day controller compares its performance to meet the criteria of achieving the day space temperature. A new value for the heating curve ratio 1 is stored daily in the controller's memory such that within 4 to 6 days, from the initial start-up it will have changed the initial heating curve to one that more closely matches the building's thermal characteristics. During this learning phase the room compensation will assist in providing comfortable space temperature conditions. S8 Heating zones See table Fault Code Description Controller Action F1 F2 F3 F4 F5 F6 F7 F8 F9 Dual loop ratio setting fault T2 sensor fault T3 sensor fault Not used T4 sensor fault T5 sensor fault T1 remote unit. fault Internal fault Remote unit fault CH1 ratio has priority: set ratio 1 under ratio 2 following installation requirements Acts as system without mixing valve. Heating on at or above frost protection values. If frost protection active: Boiler cycles at 20%. If no frost protection: Boiler off Acts as system without remote unit. Acts as system without remote unit. SYSTEM ON INDICATION Each output is monitored by LED. DIMENSIONS Controller Dimension in mm When the LED is illuminated it indicates that: The mixing valve actuator is being driven closed, reducing Heating. The mixing valve actuator is being driven open, increasing Heating. [. . . ] For tape-on installation, a polyester and an aluminium tape are supplied. Ordering Specification: T7076D1001 Specifications Sensing range Maximum Ambient temp. Sensor Wire rating Dimensions : 0 to 110°C : 115°C : NTS type 10 k @ 25°C : -30 to +115°C : 7 Ø x 25 mm Wire dimensions : 1. 3mm x 1. 5m long. Temperature Sensor Characteristics 11 EN0R 8527 R0 AQ2000 OPTIMISER/COMPENSATOR CONTROLLER Remote Unit T8102B Application The Remote Unit provides a space temperature sensor input signal to the AQ2000 for space temperature compensation and to enable the optimization and adaptive ratio to function. Remote adjustment of the setpoint is also possible and an override switch gives the possibility of selecting permanent comfort or economy settings. [. . . ]