Carrier 50HCQA07 Installation Instructions Manual

Also see for 50HCQD07: Installation instructions

34S-Bus Sensor WiringThe labels on the sensors and controller are color coded forease of installation. Orange labeled sensors can only be wiredto orange terminals on the controller. Brown labeled sensorscan only be wired to S-bus (brown) terminals. Use Fig. 47 andTable 8 to locate the wiring terminals for each S-Bus sensor.Use Fig. 47 and Table 8 to locate the wiring terminals for eachenthalpy control sensor.Fig. 47 — S-Bus Sensor DIP SwitchesTable 8 — HH57AC081 Sensor Wiring TerminationsUse Fig. 47 and Table 9 to set the DIP switches for the desireduse of the sensor.Table 9 — HH57AC081 Sensor DIP SwitchNOTE: When an S-Bus sensor is connected to an existing net-work, it will take 60 minutes for the network to recognize andauto-configure itself to use the new sensor.During the 60-minute setup period, no alarms for sensor fail-ures (except SAT) will be issued and no economizing functionwill be available.CO2 Sensor WiringWhen using a CO2 sensor the black and brown common wiresare internally connected and only one is connected to “IAQCOM” on the W7220 (see Fig. 46). Use the power from theW7220 to power the CO2 sensor OR make sure the ground forthe power supplies are common. See Fig. 48 for CO 2 sensorwiring.Fig. 48 — CO 2 Sensor WiringInterface OverviewThis section describes how to use the EconoMi$er ® user inter-face for:• Keypad and menu navigation• Settings and parameter changes• Menu structure and selectionUser InterfaceThe user interface consists of a 2-line LCD display and a 4-but-ton keypad on the front of the economizer controller.KeypadUse the four navigation buttons (see Fig. 49) to scroll throughthe menus and menu items, select menu items, and to changeparameter and configuration settings.To use the keypad when working with menus:• Press the ▲ (Up arrow) button to move to the previousmenu.• Press the ▼ (Down arrow) button to move to the nextmenu.• Press the (Enter) button to display the first item in thecurrently displayed menu.• Press the (Menu Up/Exit) button to exit a menu’s itemand return to the list of menus.Fig. 49 — W7220 Controller Navigation ButtonsTERMINAL TYPE DESCRIPTIONNUMBER LABEL1 S-BUS S-BUSS-BUSCommunications(Enthalpy ControlSensor Bus)2 S-BUS S-BUSS-BUSCommunications(Enthalpy ControlSensor Bus)USE DIP SWITCH POSITIONS FOR SWITCHES 1, 2, AND 31 2 3DA OFF ON OFFRA ON OFF OFFOA OFF OFF OFFDIPSWITCHLABELDIPSWITCHES(3)S-BUS2 PIN SIDECONNECTORS-BUSTERMINALS(1 AND 2)CO 2 SENSOR24VANALOGOUTL1(HOT)L2REDBLACKYELLOWBROWNORANGEGREEN+–POWER SUPPLY. PROVIDE DISCONNECTMEANS AND OVERLOAD PROTECTIONAS REQUIRED.11