Friedrich 9, 000 BTU'S service manual Table of Contents

Page 3

Table of Contents

Important Safety Information

2

Introduction

4

Vert-I-Pak Model Number Identification Guide

5

Serial Number Identification Guide

5

2009 Models Chassis Specifications/Performance

6-7

2008 Models Chassis Specifications/Performance

8-9

Electrical Requirements

10

Remote Thermostat and Low Voltage Control

11-12

V-PAK Electronic Control Board Features

13

Electronic Control Configuration

14

Electronic Control Error Code

 

Diagnostics/Test Mode

14-15

Electronic Control Board/Wall Thermostat

 

Sequence of Operation

16-18

Component Description

19

Checking External Static Pressure

20

Checking Approximate Airflow

20

Airflow Charts

21

Components Testing

22-23

Refrigeration Sequence of Operation

24

Service

25

Sealed Refrigeration System Repairs

26

Refrigerant Charging

26

Method Of Charging

27

Undercharged Refrigerant Systems

28

Overcharged Refrigerant Systems

28

Restricted Refrigerant Systems

29

Capillary Tube Systems/Check Valve

30

Reversing Valve — Description/Operation

31

Testing Coil

32

Checking Reversing Valves

32

Reversing Valve

 

 

Touch Testing Heating/Cooling Cycle

33

Procedure For Changing Reversing Valve

33

Compressor Checks

34

Locked Rotor Voltage Test

34

Single Phase Connections

34

Determine Locked Rotor Voltage

34

Locked Rotor Amperage Test

34

Single Phase Running & Locked Rotor Amperage

35

External Overload

34

Checking the External Overload

...................................

34

Checking the Internal Overload

34

Compressor Single Phase Resistance Test

35

Compressor Replacement

36-37

Routine Maintenance

38-39

9-18 Electrical Troubleshooting

Chart – Cooling

40

2-Ton Electrical Troubleshooting

Chart – Cooling

41

Refrigerant System Diagnosis – Cooling

42

Refrigerant System Diagnosis – Heating

43

Electrical Troubleshooting Chart –Heat Pump

43

Electrical and Thermostat Wiring Diagram

44-49

Thermistors Resistance Valves

50

Accessories

51

Warranty

52

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Contents Single Package Vertical Air Conditioning System Technical Support Contact Information Table of Contents Your safety and the safety of others are very important Important Safety InformationRefrigeration System Hazards Property Damage Hazards IntroductionSerial Number Identification Guide Electric Heat Data Chassis SpecificationsVEA Extended Cooling Performance Extended Cooling PerformanceVEA/VHA09-24 VEA Extended Cooling Performance Electric Shock Hazard Electrical RequirementsRT5 Two speed fan RT4 One speed fan Remote Thermostat and Low Voltage Control ConnectionsThermostat Connections Quiet Start/Stop Electronic Control Board FeaturesElectronic Control Configuration Electronic control error codes diagnostics and test mode DiagnosticsTest Mode Power On and Off Features on the Electronic Control Cool mode control features for cool with electric heat units Compressor operation depends on t-stat settings VERT-I-PAK Single Packaged Vertical AIR Conditioners Component description / A-Series specificationsExternal Static Pressure Indoor Airflow Data Capacitor Connections Components TestingCapacitors Capacitor Check with Capacitor AnalyzerComponents Testing Heater Elements and Limit SWITCHES’ SpecificationsDrain PAN Valve Refrigeration Sequence of Operation Refrigeration AssemblyCUT/SEVER Hazard ServiceRisk of Electric Shock Sealed Refrigeration System RepairsEquipment Required Equipment Must be CapableMethod Of Charging / Repairs Burn HazardFreeze Hazard Overcharged Refrigerant Systems Undercharged Refrigerant SystemsRestricted Refrigerant System Capillary Tube Systems Hermetic Components CheckMetering Device Check ValveReversing Valve DESCRIPTION/OPERATION Checking the Reversing Valve Testing the CoilExplosion Hazard Procedure For Changing Reversing ValveTouch Test in Heating/Cooling Cycle Fire HazardCompressor Checks Single Phase Resistance Test Ground TestChecking Compressor Efficiency Compressor Replacement Recommended procedure for compressor replacementHigh Temperatures Rotary Compressor Special Troubleshooting and Service AIR Filter Routine MaintenanceCoils and Base PAN Excessive Weight Hazard Blower Wheel / Housing / Condenser FAN / ShroudCondensate Disposal System Routine MaintenanceSleeve / Drain Front Cover9K BTU, 12K BTU, & 18K BTU Electrical Troubleshooting Chart CoolingCircuit Breakers are Electrical Troubleshooting Chart Cooling 24K BTUHeat Pump Mode Electrical Troubleshooting Chart Heat PumpTroubleshooting Chart Heating Troubleshooting Chart CoolingElectric Heat VEA 09/12/18 with 2.5 KW, 3.4 KW or 5KWVHA 09/12/18 with 2.5 KW, 3.4 KW or 5KW Cool with Electric Heat Heat Pump with Electric Heat Cool with Electric Heat Heat Pump with Electric Heat Outdoor Coil Return Air Indoor Coil Accessories Wall PlenumDrain PAN Friedrich Air Conditioning Company Technical Support Contact Information Friedrich AIR Conditioning CO