Carrier CRECOMZR077A00 Installation Instructions Manual

Also see for CRECOMZR077A00: Installation instructions

Contents

16Remote (Downstairs) Monitoring of Controller’sFault Detection and DiagnosticsMany codes including IECC, Title 24, and ASHRAE 90.1 re-quire that the economizer’s faults be accessible by operating orservice personal, or annunciated locally on zone thermostat. Tosetup remote monitoring on the controller, under SYSTEMSETUP, AUX1-OUT must be set to SYS.The latest versions of Honeywell’s TH8321WF or TH8321Rthermostats are options for meeting this requirement. Figure 35shows an example of the thermostat wiring to the Jade control-ler. Follow instructions provided with Honeywell thermostat.Another option that is acceptable to some codes is an annunci-ator light visible by service personnel. See Fig. 36 for typicalwiring to the Jade controller. Refer to codes for proper labelingof light.Fig. 35 — Thermostat Wired for Remote FDDFig. 36 — Annunciator Light Wired for Remote FDDC RAUX2-1OCCE-GNDEXH1AUX1-0Y2-IY2-OY1-IY1-OCRW7220 JADEECONOMIZERU1U1RRcCA-L/AFURNACE, AIR HANDLER,OR RTUTH8321R ORTH8321WFSUB-BASEMATJADE Setting: Under the “System Setup” menu, set AUX1-OUT to“SYS” which will close JADE relay on fault detectionExamples of annunciator lightswould include these Grainger lights:- Item #20C841- Item #20C846AUC2-1OCCE-GNDEXH1AUX1-0Y21Y2OY1IY1O=CRIAQ COMIAQ (2-10V)IAQ 24VACT (2-10V)ACT COMACT 24VMATOATOATTO “C” TERMINALTO “AUX1-0” TERMINALAnnunciator Light*W7220 Economizer Controller Module