Lochinvar 402 - 2072, 502 - 2072 service manual Contents

Page 2

Contents

CONTENTS

2

2. MAINTENANCE

 

 

Hazard Definitions

2

Maintenance and Annual Startup

23-30

PLEASE READ BEFORE PROCEEDING

3

3. TROUBLESHOOTING

 

 

Handling Ceramic Fiber Materials

3

Before Troubleshooting

31

When servicing appliance

3

Check Control Module Fuses

31

Appliance operation

3

Table 3A - Troubleshooting Chart - No Display

32

Appliance water

3

Checking Temperature Sensors

33

WHAT IS IN THIS MANUAL

4

Table 3D - Troubleshooting Chart - Noisy System

34

1. SERVICE

 

Table 3E - Troubleshooting Chart - Fault Messages..

35-42

The Copper-fin Display

5

Revision Notes

Back Cover

Control Inputs

6

 

 

 

Control Outputs

7

 

 

 

General Operation

8

 

 

 

Sequence of Operation

9-10

 

 

 

Display Panel Menu Access

11

 

 

 

Display Panel Parameter Access

12

 

 

 

Parameter Table

13-14

 

 

 

Viewable and Changeable Control Parameters

15-22

 

 

 

Hazard definitions

The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or to important information concerning the life of the product.

￿DANGER

￿WARNING

￿CAUTION

CAUTION

NOTICE

DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in property damage.

NOTICE indicates special instructions on installation, operation, or maintenance that are important but not related to personal injury or property damage.

2

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Contents
Copper-fin II/IIE Boiler, Water Heater Pool Heater Contents Niosh stated First Aid Please read before proceedingHandling ceramic fiber materials Maintenance What is in this manual?Service TroubleshootingService Copper-fin displayControl inputs Control outputs How the control module operates General OperationHow the appliance operates Sequence of operationSequence of operation OUT 123.8F129HTR Postpurge Display panel menu access Display panel parameter access Datalogging Functions Settingsdhw Resetoutdoor Parameter tableAnti-cycle Delay Yes Temperature settings boiler only Viewable and changeable control parametersData logging FunctionsDHW settings Outdoor air reset boiler only Anti-cycling Control modes Building Management System BMS CascadeService Notification Circulation pumpsOwner maintenance Maintenance Maintenance and annual startupService technician See the User’s Information Manual for instructionsMaintenance Check relief valve Inspect/replace hot surface igniter Inspect/replace hot surface ignitersInspect and clean burner Check all wiringCheck control settings Perform start-up and checksAccess to the burner will require the following steps Checking combustion air pressureAdjusting combustion air pressure Checking manifold gas pressureValve Fitting Control Knob Oiled bearing circulators Inspect and clean the heat exchangerReview with owner Check control module fuses TroubleshootingBefore troubleshooting Check the followingOperation No DisplayNo Burner Unit Does NotTemperature Resistance Checking temperature sensorsResistance Temperature Boiler Pump System Pump NoisyNo Pump DHW PumpAnti-cycling Flow SwitchFlame Sequence HSI Current Low ErrorNo Flame Ign Flame CKTRunning Auto ResetNo Flame High LimitSensor Open Manual ResetInlet Low Sensor ShortedAPS Open Louver ProvingTank Open APS ClosedTemp O/Shoot Rem Ctrl FltProgr Service BlkParameters Low VoltageWrite EEProm Watch Dog ErrorNo Error Stored Program EEProm
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