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Friedrich
H)A09K25, V(E service manual
Models:
V(E
H)A09K25
1
30
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Troubleshooting
Specification
Typical Electrical & Thermostat Wiring Diagrams
Recommended Procedure for Compressor Replacement
FOR 208 VOLT MODELS ONLY MOVE THE WHITE WIRE AS
Refrigeration Assembly
Procedure For Changing Reversing Valve
Single Phase Running and L.R.A. Test
How to
Testing Coil
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Contents
MODELS
Single Package Vertical Air Conditioning System
A - H Suffix Models
VE,HA09K25
Table of Contents
Introduction
Serial Number Identification Guide
Model Identification Guide
VEA/VHA9K-24K
VERT-I-PAK H SUFFIX CHASSIS SPECIFICATIONS
ELECTRIC HEAT DATA
VEA / VHA09,12
VEA / VHA9K-24K
VERT-I-PAK E & G SUFFIX CHASSIS SPECIFICATIONS
ELECTRIC HEAT DATA
VEA / VHA09,12
VERT-I-PAK A - D SUFFIX CHASSIS SPECIFICATIONS
Sequence of Operation
Refrigeration Assembly
Supply Voltage
Electrical Supply
Supply Circuit
Control Low Voltage
Room Thermostats
Heat Anticipators
Location
VEA/VHA 24K
Typical Electrical & Thermostat Wiring Diagrams
FOR 208 VOLT MODELS ONLY MOVE THE WHITE WIRE AS
SHOWN BELOW
RT1 THERMOSTAT FRONT
G & H Suffix
Typical Electrical & Thermostat Wiring Diagrams
COM
FOR 208 VOLT MODELS ONLY MOVE THE WHITE WIRE AS
A - E Suffix
Typical Electrical & Thermostat Wiring Diagrams
SHOWN BELOW
Blower Wheel Inspection
Indoor Blower - Airflow
Condenser Fan Motors
Cooling
Checking External Static Pressure
Checking Approximate Airflow
Electric Heat Strips
Refrigerant Charging
Explanation of charts
Ductwork Preparation
Airflow Charts A - D Suffix
Method Of Charging
Undercharged Refrigerant Systems
Overcharged Refrigerant Systems
Restricted Refrigerant Systems
Reversing Valve Description/Operation
Testing Coil
Metering Device - Capillary Tube Systems
Electrical Circuit and Coil
Procedure For Changing Reversing Valve
Checking Reversing Valve
Touch Test in Heating/Cooling Cycle
DANGER OF BODILY INJURY OR DEATH
Single Phase Running and L.R.A. Test
Compressor Checks
FROM ELECTRICAL SHOCK
Single Phase Resistance Test
Recommended Procedure for Compressor Replacement
Repeat Step 8 to insure no more leaks are present
Capacitors
Capacitor Connections
Capacitor Check With Capacitor Analyzer
Electric Heat Switch Operation
Electric Heat Switch Check Out
Heat Pumps Only
DIAGRAM
Wiring Diagram Index
DIAGRAM
MODEL
VHA09K25RTG
A - D Suffix only
A - D Suffix only
A - D Suffix only
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9-18ELECTRICAL TROUBLESHOOTING CHART - COOLING
NO COOLING
2-TONELECTRICAL TROUBLESHOOTING CHART - Cooling
NO COOLING
REFRIGERANT SYSTEM DIAGNOSIS COOLING
TROUBLESHOOTING CHART - COOLING
TROUBLESHOOTING CHART - HEATING
REFRIGERANT SYSTEM DIAGNOSIS HEATING
HEAT PUMP
ELECTRICAL TROUBLESHOOTING CHART HEAT PUMP
SYSTEM COOLS WHEN HEATING IS DESIRED
Is Selector Switch set for Heat?
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Post Office Box 1540 · San Antonio, Texas
Use Factory Certified Parts
FRIEDRICH AIR CONDITIONING CO
4200 N. Pan Am Expressway · San Antonio, Texas
