York Eco 2 Quick Start Up Manual

JOHNSON CONTROLS28FORM 100.50-SU3 (1207)TEST/UP BUTTONWhen not in the program mode, if the Test/Up buttonis pushed and released once within five seconds, thecontrol skips any short cycle delays for one cycle. Thisis a useful aid for the technician servicing the systemwithout having to wait for delays to time out.If this button is pressed and released twice within five-seconds a lock-out is released. This serves the samefunction as temporally breaking the 24 VAC circuit tothe Unit Controller.When in the program mode this button scrolls upthrough the parameter addresses. See the ParameterPoints list to identify the desired parameter. Parametersare items that can be viewed and changed in the controlsuch as setpoints, year, date, time, time delays, etc.ADDRESS/DOWN BUTTONWhen in the program mode this button scrolls downthrough the parameter addresses.This button is also used to set the controller up on anetwork. When wired to a network through the RS-485terminals on the board, pushing this button once whennot in the program mode causes the control to scan thecommunication bus. The control automatically locatesthe first vacant communications address and changes itsaddress to that address. It will then display the addresson the display for two seconds. The controller is thenconnected to the network.When connected to a network, pressing the button twicewithin five-seconds causes the network address to bedisplayed for two seconds.Pressing this button three times within five-secondsresets the network address to one.ALARM/CHANGEWhen this button is pressed and released one time withinfive-seconds, it automatically scrolls through the fivealarms held in memory. The first alarm displayed is thelatest and the last displayed is the oldest.When this button is pressed and released twice withinfive-seconds, it clears all alarms in memory.When in the program mode and with a parameterselected, this button when pressed once causes the datavalue for that parameter to begin flashing. At this pointthe data value can be increased or decreased using theTest/Up and Address/Down buttons. When pressedagain the current data setting is accepted and stored.CHARACTER DISPLAY ADDRESSES & CODESTable 6-2 shows the address for each control functionas well as the unit of measurement for that function, theavailable range of adjustment and the factory setting asthe unit left the factory.