Carrier 39L Series Installation, Operation, And Start-up Instructions

Also see for 39L Series: Installation, Start-Up and Service Instructions

Carrier 39L Series Installation, Operation, And Start-up Instructions Manual pdf 81 page image

— Displays the latest service date on the local in-terface device. The last 2 service dates are displayed at theBuilding Supervisor.TEST FUNCTION — The test function operates the QuickTest diagnostic program.— Displays the status of all inputs.- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -— Tests the outputs.- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -— Tests the electric heaters. Unit must be config-ured for electric heat to access this subfunction. SeeExample 5.- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -— Tests the stages of direct expansion (DX) cool-ing. Unit must be configured for DX cooling to access thissubfunction.- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -— Takes the unit out of Quick Test.- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -NOTE: The unit must not be operating during the Quick Testfunction. Set HOA switch to OFF and follow the test pro-cedure. Set HOA switch to AUTO only as required duringtesting.To reach a particular test, enter its subfunction numberand then scroll to the desired test by pressing . A testcan be terminated by pressing ; pressing after a testhas started terminates the current test and advances the sys-tem to the next test. Once in the next step, you may startthe test by pressing , advance past it by pressing , orback up by pressing . When testing is complete, exit theQuick Test by pressing and then ; this MUSTbe done to restore the unit software to automatic control.If the keyboard is not used for 10 minutes, the displayreturns to the rotating default display. Press andto exit Quick Test and then press to restart the testprocedure.Example 5 — Using Quick TestKEYBOARDENTRYDISPLAYRESPONSE COMMENTSELEC HT Factory test of electric heatsubfunction of test functionEHS1 Stage 1 testSTG1 TST Pressing ENTR starts the fan test.Fan automatically starts. There is an11-second delay while the inletguide vanes open and the heat stageis enabled. When the electric heatstage should be running, the displayshows EHS ON. Test remains onuntil another key is pressedEHS2 Pressing the down arrow keyadvances the system to stage 2 test.Any stage may be selected. Pressthe key until the desired stage isdisplayed, then press ENTR to startthe testEXIT TST If no other test is desired, exit QuickTest. Fan shuts off, last electric heatstage shuts off, and IGVs closeTST CMPL Test is completed. Unit resumesautomatic controlProgramming FunctionsSERVICE FUNCTION — The service function allowsthe operator to verify or change factory and field configu-rations. The service subfunctions are listed below. (SeeTable 13 for details.) Refer to Table 16 for configuration valueranges and defaults.— Use this subfunction to log on before perform-ing any subfunction in Factory Configurations ( ),and to log off after completing service subfunctions. SeeExample 6.Example 6 — Logging On and Logging OffService FunctionKEYBOARDENTRYDISPLAYRESPONSE COMMENTSTO LOG ON:LOG ON Ready for password to beenteredLOGGEDON Operator can now useservice functionsTO LOG OFF:LOG OFF Ready for operator to log offLOGD OFF Logged off — passwordprotection enabled81