Honeywell thm5421r1021 equipment interface module for all prestige iaq and new redlink visionpro thermostats overview equipment interface module controls up to 4 stages of heat and 2 stages of cool in a heat pump system and up to 3 stages of heat and 2 stages of cool in a conventional system. Prestige 2 wire iaq equipment interface module controls up to 4 stages of heat and 2 stages of cool in a heat pump system and up to 3 stages of heat and 2 stages of cool in a conventional system.
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Thm5421r wiring diagram. Refer to the table and wiring diagrams on pages 3 5. Eim wiring m28467 w ireless setup thm5320r connect flashing. Heat 1 relay communication led communication. Use screws anchors as appropriate for mounting surface. 1 mount and wire eim mount eim on wall near hvac equipment or on the equipment itself. View online or download honeywell thm5421 operating manual.
Page 6 español. Honeywell thm5421 pdf user manuals. Three sets of universal iaq contacts to control humidification dehumidification and ventilation. 12 wire eim as shown. Connecting to remo te device red. Page 1 français.
1 installing the equipment interface module eim terminal designations. Connectedto te devices. If you are installing discharge and return air sensors refer to the mounting instructions in the alerts and delta t diagnostics installation instructions packed in the kit. Do not install inside hvac equipment. Página 11 wiring guide typical hookup of conventional system with up to three stage heat and two stage cool with one transformer 3h2c 2h2c 2h1c 1h2c 1h1c 1h 2h 3h 1c 2c conventional. Remo te devices not communi cating green.