Emerson E2 operation manual Zone Control, Section, Tion

Inputs	Sensor Type	Wiring
		Instructions
Outdoor Air Humid	Humidity	Set up as Out-
		door Humidity
		Provider in
		Global Data (see
		Section 10.17).
Curtailment Device	Digital	Set up as Curtail-
		ment in Global
		Data (see Sec-
		tion 10.17).
Fan Proof	Digital	See Table 9-1 on
		page 9-3
Fan Proof Reset	Digital	See Table 9-1 on
		page 9-3
VS Inverter Alarm	Digital	See Table 9-1 on
		page 9-3
Enthalpy Switch	Digital	See Table 9-1 on
(Indoor and/or Out-		page 9-3
door)
Dewpoint Probe (for	Dewpoint	See Table 9-1 on
Economization)		page 9-3
Mixed Air Temp (ana-	Temperature	See Table 9-1 on
log economizers only)		page 9-3
Table 11-10- Suction Group Inputs
Output Device	Wire 8RO	Set Fail-safe Dip	Notes
	contacts to:	Switch to:
Heat / Cool Staged	see note	see note	Set up any stages you want ON when the controller is off-line as
Outputs			N.C. Stages you want OFF should be set as N.O.
Single-Speed Fans	see note	see note	If one or more heat or cool stages will be ON, wire fan N.C. so
			it will be active during controller off-line times. Otherwise, wire
			N.O.
Two-Speed Fans	see note	see note	If any heat or cool stages are configured to be ON (N.C.), set the
(LOW, HIGH, and			wiring and the switch to N.C., and set either the LOW or HIGH
fan contactor)			stage output to N.C. (whichever speed you want active). If no
			heat or cool will be active, set LOW, HIGH, and the fan contac-
			tor to N.O.
Digital Economizer	N.O.	N.O.

Table 11-11- Suction Group Outputs

11.7 Zone Control

11.7.1 Overview

An HVAC Zone is a collection of up to sixteen rooftop units or air handling units that work together to maintain the same temperature and humidity throughout a particular

volume of space. The primary function of an HVAC Zone is to “manage” the operation of each individual HVAC unit by providing the temperature setpoints that will be used in Temperature Control. Zones are also responsible for ordering HVAC units to dehumidify and determining when outside air conditions are favorable to economize.

Zone Control Software Overview • 11-25