Mars Comfort-Aire Century 7602-444 User Manual Download

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Installation and

Operation Manual

7602-444

Communicating Service Tool

Table of Contents

Connection ..............................................................................3

Menu Structure ........................................................................4

System Configuration

..............................................................4

Airflow Selection

......................................................................4

Option Selection

......................................................................5

Unit Configuration

....................................................................5

Pump Configuration

.................................................................6

Valve Configuration

.................................................................6

Multi-Unit Configuration

...........................................................7

Service Mode

...........................................................................8

Manual Operation

....................................................................8

Control Diagnosis

....................................................................8

Dipswitch Configuration

...........................................................9

Fault History

............................................................................9

Clear Fault History

.................................................................11

Revision History

.....................................................................12

Summary of Contents for Comfort-Aire Century 7602-444

Page 1: ...ction 3 Menu Structure 4 System Configuration 4 Airflow Selection 4 Option Selection 5 Unit Configuration 5 Pump Configuration 6 Valve Configuration 6 Multi Unit Configuration 7 Service Mode 8 Manual Operation 8 Control Diagnosis 8 Dipswitch Configuration 9 Fault History 9 Clear Fault History 11 Revision History 12 ...

Page 2: ...Equivalent Model Numbers Heat Controller Climate Master HE Series TZ HZ Series TE HZS Series TES HB Series 0 5 5T TC HB Series 7 25T TL HKV Series TL HRC Series TRC ...

Page 3: ...it by operating it manually performing control diagnostics viewing dip switch configurations or by viewing fault history and operating conditions when a fault occurred The Service Tool connects to the DXM2 board with a 4 Wire Connector as shown below P1 Alarm Relay O Y1 Y2 W G C R AL1 R C OVR ESD C R NSB AL2 JW1 H LT1 LT1 LT2 LP LP HP HP Status Fault 1 240Vac Com N O Fan Enable 7 6 1 2 5 Factory l...

Page 4: ...mp Configuration menu section 3 4 will not be present if the connected communicating control is configured for No Loop Configuration OTHER Note 3 The Valve Configuration menu section 3 5 will not be present if the connected communicating control is configured for No Loop Configuration OTHER 3 1 AIRFLOW SELECTION Adjust the airflow settings for each system operating mode using the up down arrow but...

Page 5: ...3 6 for unit selection 3 3 UNIT CONFIGURATION Adjust the Unit Configuration settings including Heat Pump Family Heat Pump Size Blower Type and Loop Configuration using the up down arrow buttons Press the center button to select each item Heat Pump Family default stored in control valid range TE TY TES TEP TRT TSM TSL Heat Pump Size default stored in control valid range depends on Heat Pump Family ...

Page 6: ...o select Fixed and press to save Default stored in control Valid range 15 90 in 1 increments Heating Stage 1 Cooling Stage 1 Heating Stage 2 Cooling Stage 2 If Pump Configuration is set to VS PUMP PARALLEL valid range changes to 50 90 in 1 increments 3 5 VALVE CONFIGURATION Configure temperature differentials at the thermostat for vFlow units with a motorized modulating valve Adjust the Valve Conf...

Page 7: ...7602 457 thermostat or connected to one another in series as shown by the figure below 3 6 1 MULTI UNIT AIRFLOW SELECTION In section 3 1 when an installer selects Airflow Selection from the System Configuration menu the installer may choose the unit to configure by the last 4 digits of its serial number from the following screen 3 6 2 MULTI UNIT OPTION SELECTION In section 3 2 when an installer se...

Page 8: ...avigate between diagnostic screens using the left right arrow buttons NOTE The Pump Status will not be present if the connected communicating control DXM2 is not configured for Pump section 3 4 SERVICE MODE MANUAL OPERATION CONTROL DIAGNOSTICS DIPSWITCH CONFIG FAULT HISTORY CLEAR FAULT HISTORY SELECT OPTION PREVIOUS SELECT MANUAL OPERATING MODE Y1 COMM OUTPUT OFF Y2 COMM OUTPUT OFF W COMM OUTPUT O...

Page 9: ...N RV O THERMOSTAT 5 ON DEHUMID OFF 6 ON EH2 AUX HEAT 7 ON BOILERLESS 8 ON SEE DXM2 AOM PREVIOUS NEXT CONTROL CONFIGURATION DIPSWITCH S2 1 ON ACCESSORY 1 2 ON ACCESSORY 2 3 ON 4 ON ACCESSORY 2 5 ON ACTIVE W COMP 6 ON 7 ON H DEHUM INPUT 8 ON FACTORY SETTING PREVIOUS NEXT CONTROL CONFIGURATION DIPSWITCH S3 1 ON FACTORY SETTING 2 OFF HWG TEST OFF 3 OFF HWG SP 125 4 OFF HWG DISABLED JW3 LT1 SETTING WEL...

Page 10: ...S FAULT CONFIG COND FAULT POSSIBLE CAUSES PREVIOUS SELECT FAULT TEMPERATURE CONDITIONS LT1 LOW WATER TEMP HEAT 1 11 11 AM 11 14 LT1 TEMP 28 1 LT2 TEMP 97 3 HOT WATER EWT 121 5 COMP DISCHARGE 157 7 LEAVING AIR 92 7 LEAVING WATER 34 9 ENTERING WATER 42 1 CONTROL VOLTAGE 26 4 PREVIOUS FAULT I O CONDITIONS LT1 LOW WATER TEMP HEAT 1 11 11 AM 11 14 TSTAT SAFETY OUTPT CONV COMM HPS Y1 Y1 LOC CC Y2 Y2 CO ...

Page 11: ...ory will clear all fault codes stored in the thermostat as well as the fault history in any connected communicating controls DXM2 AXM FAULT CONFG CONDITIONS LT1 LOW WATER TEMP HEAT 1 11 11 AM 11 14 S1 S2 S3 1 ON 1 ON 1 ON 2 ON 2 ON 2 OFF 3 ON 3 ON 3 OFF 4 ON 4 ON 4 OFF 5 ON 5 ON 6 ON 6 ON LT1 WELL 7 ON 7 ON LT2 WELL 8 ON 8 ON PREVIOUS POSSIBLE FAULT CAUSES LOW WATER COIL TEMP LOW WATER TEMP HTG LO...

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