APPLICATION, OPERATION & MAINTENANCE MANUAL
DXM2 Digital Heat Pump Controller
Table of Contents
Application, Operation, & Maintenance Manual
DXM2 UNIT CONTROLS
Heat Controller, Inc
DXM2 Electronic Heat Pump Controls
Application, Operation, & Maintenance Manual
Power Requirements
Basic Control Features
DXM2 Physical Dimensions & Layout
Application, Operation, & Maintenance Manual
DXM2 UNIT CONTROLS
Heat Controller, Inc
DXM2 Layout and Connections
Application, Operation, & Maintenance Manual
Conventional stat connection Cabinet temperature
Time Delays
DXM2 Controls
Application, Operation, & Maintenance Manual
DIP SWITCHES
DXM2 UNIT CONTROLS
Table 1 Accessory Relay 1 Configuration
Table 2 Accessory Relay 2 Configuration
Application, Operation, & Maintenance Manual
DXM2 Controls
Application, Operation, & Maintenance Manual
SAFETY FEATURES
DXM2 Controls
DXM2 UNIT CONTROLS
Application, Operation, & Maintenance Manual
Diagnostic Features
DXM2 Controls
DXM2 UNIT CONTROLS
Table 3 LED and Alarm Relay Output Table
Application, Operation, & Maintenance Manual
DXM2 Controls
DXM2 UNIT CONTROLS
Application, Operation, & Maintenance Manual
DXM2 Controls
DXM2 UNIT CONTROLS
Heat Controller, Inc
Application, Operation, & Maintenance Manual
SPECIAL DXM2 APPLICATION NOTES / ACCESSORY RELAYS
DXM2 Controls
DXM2 UNIT CONTROLS
Table 4 Thermostat Inputs With Resulting Demands
Application, Operation, & Maintenance Manual
DXM2 Controls
DXM2 UNIT CONTROLS
Application, Operation, & Maintenance Manual
DXM2 Controls
DXM2 UNIT CONTROLS
Heat Controller, Inc
Table 7 Replacement Thermistor LT1
LT2 Part Numbers
Application, Operation, & Maintenance Manual
DXM2 Controls
DXM2 Service & Application Notes
Table 8 1% Sensor Calibration Points
Application, Operation, & Maintenance Manual
DXM2 UNIT CONTROLS
DXM2 Service & Application Notes
Application, Operation, & Maintenance Manual
Thermostat Signals
Safety Listing
Basic Troubleshooting Information
Application, Operation, & Maintenance Manual
General Troubleshooting
DXM2 UNIT CONTROLS
Application, Operation, & Maintenance Manual
DXM2 UNIT CONTROLS
Heat Controller, Inc
General
Application, Operation, & Maintenance Manual
Service Mode
DXM2 UNIT CONTROLS
Heat Controller, Inc
Troubleshooting Chart
DXM2 Functional Troubleshooting Flow Chart
Application, Operation, & Maintenance Manual
Start
Application, Operation, & Maintenance Manual
DXM2 UNIT CONTROLS
Heat Controller, Inc
control panel
Application, Operation, & Maintenance Manual
DXM2 UNIT CONTROLS
Heat Controller, Inc
control panel
Functional Troubleshooting
Application, Operation, & Maintenance Manual
Fault
Solution
Functional Troubleshooting cont
ESD - ERV Fault DXM Only
No Fault Code Shown
Green Status LED Code
Performance Troubleshooting
Application, Operation, & Maintenance Manual
Symptom
Solution
DXM2 UNIT CONTROLS
Application, Operation, & Maintenance Manual
Heat Controller, Inc
4/2012