Carrier EconoMiser X User Manual

EconoMi$er X
F a c t o r y --- I n s t a l l e d O p t i o n
Low Leak Economizer
for 2 Speed SAV™ (Staged Air Vo lume) Systems
Installation, Setup & Troubleshooting Supplement
This document is a supplemental installation instruction for the factory-installed EconoMi$er
X (low leak economizer) option. It is to be used with the base unit Installation Instructions for
48/50TC, 50TCQ, 48/50HC, and 50HCQ 2-Stage cooling units, sizes 08 – 30, as well as 48/50LC
sizes 04– 06. Units equipped with the EconoMi$er X option are identified by an indicator in the
unit's model number (see the unit's nameplate). Use Table 1 (on page 2) to identify whether
or not a given unit is equipped with the factory-installed EconoMi$er X.
NOTE: Read the entire instruction manual before starting the installation.
TABLE OF CONTENTS
SAFETY CONSIDERATIONS 2....................
GENERAL 2....................................
Identifying Factory Option 2......................
EconoMi$er X 3................................
Unit Installation 3..............................
W7220 Economizer Controller 3...................
User Interface 4................................
Menu Structure 4...............................
CONNECTIONS AND APPLICATIONS 9............
W7220 Economizer Module Wiring 9..............
ECONOMIZER CONTROL CONFIGURATIONS 10...
Enthalpy Changeover Control 10..................
Enthalpy Settings 10............................
Enthalpy Control Sensor Configuration 11...........
Demand Control Ventilation 12....................
Economizer Occupancy Control 13.................
HARDWARE 14.................................
Actuators 14...................................
Supply Air Temperature Sensor 14.................
Outside Air Temperature Sensor 14................
Enthalpy Control Sensor Configuration 14...........
OPERATING SEQUENCES 16.....................
Staged Air Volume (2--Speed) Fan Motor 16...........
W7220 Economizer Control 16.....................
Base Unit Controls 16............................
Cooling, Unit with EconoMi$er X without CO
2
16......
Stage 3 Cooling 18..............................
Heating with EconoMi$er X 18....................
Demand Control Ventilation 18.....................
SETUP AND CONFIGURATION 18................
Initial Menu Display 18..........................
Time--out and Screensaver 18.....................
CHECKOUT 19.................................
Status 19......................................
Calibration of Sensors 19.........................
Resetting All Defaults 19.........................
TROUBLESHOOTING 19.........................
Power Up Delay 19.............................
Power Loss (Outage or Brownout) 19...............
Alarms 19.....................................
Clearing Alarms 20.............................
CONTROL SET POINT AND
CONFIGURATION LOG 22.......................
Downloaded from ManualsNet.com search engine

Carrier EconoMiser X Specifications

General

Brand	Carrier
Model	EconoMiser X
Category	Fan
Language	English

Summary

General Information and Identification

Identifying Factory Option

Details how to identify if a unit has the factory-installed EconoMi$er X option.

Economizer Controller and Installation

W7220 Economizer Controller

Overview of the Honeywell W7220 controller and its functions.

Unit Installation

Steps for installing the economizer damper assembly and outside air hood.

User Interface and Menu Navigation

User Interface

Description of the 2-line LCD display and 4-button keypad.

Menu Structure

Hierarchy of the W7220 controller menu parameters.

Connections and Wiring

W7220 Economizer Module Wiring

Guide for wiring the W7220 Economizer module terminals.

Economizer Control Configurations

Enthalpy Changeover Control

How economizer changeover is based on outdoor air enthalpy.

Enthalpy Settings

Defines enthalpy boundaries for economizing using single enthalpy.

Demand Control Ventilation (DCV)

DCV Single-Speed System Setpoints

Setpoints for DCV damper modulation with single-speed fan.

DCV 2-Speed System Setpoints

Setpoints for DCV damper modulation with 2-speed fan.

Hardware Components

Actuators

Details on the direct-coupled economizer X damper actuators.

Enthalpy Control Sensor Configuration

How to configure the S-bus enthalpy sensor for various uses.

Operating Sequences

Staged Air Volume (2-Speed) Fan Motor

Logic for indoor fan speed based on space thermostat demand.

Cooling, Unit with EconoMi$er X Without CO2

Cooling sequence for occupied mode without CO2 sensor.

Setup and Configuration

Initial Menu Display

Initial display information on the W7220 controller.

Time-out and Screensaver

Behavior of the LCD display when idle.

Checkout and Troubleshooting

Checkout

Procedures for testing damper operation and configured outputs.

Troubleshooting

Guidance on common issues like power delay, loss, and alarms.

Alarm Management

Clearing Alarms

Steps to clear alarms after the cause has been removed.

Control Set Point and Configuration Log

Menu 1: System Setup

Parameters for system setup, including units and fan type.

Advanced Setup Parameters

Menu 2: Advanced Setup

Advanced parameters like calibration and delays.

Setpoints Configuration

Menu 3: Setpoints

Key setpoints for economizer operation and control.