Heat Controller DXM2 manual

Contents

Main Application, Operation, & Maintenance Manual DXM2 UNIT CONTROLS Heat Controller, Inc. Table of Contents DXM2 Electronic Heat Pump Controls DXM2 Physical Dimensions & Layout P1 Status A0-1 A0-2 1.5 DXM2 Layout and Connections P1 P7 P6 P3 Page Table 2: Accessory Relay 2 Con guration Table 1: Accessory Relay 1 Con guration CAUTION! Page Table 3: LED and Alarm Relay Output Table Page Page Table 4: Thermostat Inputs With Resulting Demands Table 5: Table 6: Table 7: Replacement Thermistor LT1, LT2 Part Numbers Table 9: Nominal resistance at various temperatures DXM2 Service & Application Notes Table 8: 1% Sensor Calibration Points Page Basic Troubleshooting Information Page Advanced Troubleshooting and Con guration Information Troubleshooting Chart Start Unit is OK! DXM2 Functional Troubleshooting Flow Chart Page Page Functional Troubleshooting CAUTION! Fault Htg Clg Possible Cause Solution Functional Troubleshooting (cont.) Performance Troubleshooting Symptom Htg Clg Possible Cause Solution