Table of Contents

Important Safety Information

2-4

Introduction

4

General Product Features

5

HVAC Engineering Specifi cations

6

Component identifi cation

7

Accessories

8-9

Unit Identifi cation

10

Chassis Specifi cations

11

Cooling and Heating Performance

12-13

Electric Heat Data

14

Electrical Rating Tables

15

Power Cord Information

15-17

Remote Wall Thermostat / Low Voltage

 

Wire Connections

18-19

Digital Control Features

20

Digital Control Operation

21

Digital Control User Input Confi guration

22

Digital Control Diagnostics

23

Malfunction Analysis

24-26

Components Testing

27-28

Refrigeration System Sequence of Operation

29

Sealed Refrigeration System Repairs

30

Refrigerant Charging

31

Method Of Charging

31

Undercharged Refrigerant Systems

31-32

Overcharged Refrigerant Systems

32

Restricted Refrigerant Systems

32

Capillary Tube Systems/Check Valve

33

Reversing Valve — Description/Operation

34

Testing Coil

34

Checking Reversing Valves

34-35

Reversing Valve

 

Touch Testing Heating/Cooling Cycle

35

Procedure For Changing Reversing Valve

35-36

Compressor Checks

36

Locked Rotor Voltage Test

36

Single Phase Connections

36

Determine Locked Rotor Voltage

36

Locked Rotor Amperage Test

36

Single Phase Running & Locked Rotor Amperage

36

Checking the Overload

36

External Overload

37

Compressor Single Phase Resistance Test

37

Compressor Replacement

38-39

Routine Maintenance

39

Troubleshooting Charts

40-41

Wiring Diagrams for Wall Mounted Thermostats

42-43

Wiring Diagram

42-44

RT6 Installation, Operation and Application Guide ...

45-46

Thermistors Resistance Values

47-48

Warranty

.....49

2011 PTAC Exploded View

.....50

2011 PTAC Parts List - PDE Models

.....51

2011 PTAC Parts List - PDH Models

.....52

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Friedrich PTAC - R410A service manual Table of Contents