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Cruisair SMXht - User Manual

Cruisair SMXht
28 pages
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SMX II Control Systems (DX)
English
OWNER/OPERATOR
Revised: 1-17-05
L-2362
For Direct Expansion SMX II Control Systems using
SMXIIAB, SMXir or the new SMXht keypad/displays.

Table of Contents

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Summary

SMX II Control Systems Operation

SMXIIAB & SMXir Keypad;Display Functions

Details the buttons, indicators, and displays for SMXIIAB and SMXir keypad/displays.

Basic Operation and Control Functions

System Power, Mode Selection, and Setpoint

Covers turning the system on/off, selecting Cool, Heat, Auto modes, and setting the desired temperature.

SMX II System Programming Guide

Accessing and Using the Programming Mode

Instructions for entering, navigating, and exiting the SMX II programming mode.

Compressor Time Delay and F;C Display Settings

Programming the compressor time delay and selecting Fahrenheit or Celsius display.

SMX II Programming: Differentials and Fan Speed

Compressor Restart and Fan Response Differentials

Adjusting settings for compressor restarts and fan speed changes based on temperature differences.

SMX II Programming: Fan Mode, Calibration, Reset

Humidity Control Program Configuration

SMXIIAB;SMXir Programming Summary and Faults

Fault Shutdowns and Error Messages Overview

Explains system safeguards, fault codes, and how fault displays are cancelled.

High and Low-Pressure Shutdowns

Details on high-pressure and low-pressure shutdowns, including their causes and behavior.

SMX II Faults, Software Errors, and Startup

Low-Voltage Shutdown and Software Error Handling

Covers low-voltage protection, software errors (PE message), and their resolution.

SMXht Keypad;Display Operation and Programming

SMXht Basic Operation: Power, Modes, and Setpoint

How to turn on/off, select modes, adjust setpoint, and manage display brightness on SMXht.

SMXht Programming Summary and Fault Codes

SMXht Factory Memory Reset and Fault Displays

Procedures for resetting SMXht to factory defaults and understanding fault code displays.

SMX II Control Systems Troubleshooting Guide

Cruisair SMXht Specifications

General IconGeneral
DisplayLCD
Control MethodDigital
Weight0.5 lbs
CompatibilityCruisair systems
Humidity Range0-100% RH

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