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H)A09K25
Friedrich H)A09K25 User Manual
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VPSERVMN (4-05)
Use Factory Certifi
ed
Parts.
FRIEDRICH AIR CONDITIONING CO.
P
ost Office Box 1540 · San Antonio, T
exas 78295-1540
4200 N. P
an Am Expressway · San Antonio, T
exas 78218-5212
(210) 357-4400 · F
AX (210) 357-4480
www
.friedrich.com
Printed in the U.S.A.
43
Table of Contents
Service Manual
1
Table of Contents
2
Introduction
3
Vert-I-Pak Model Number Identifi Cation Guide
4
Serial Number Identifi Cation Guide
4
Electric Heat Data
5
H Suffi X Chassis Specifi Cations
5
E and G Suffi X Chassis Specifi Cations
6
A and D Suffi X Chassis Specifi Cations
7
Sequence of Operation
8
Electrical Supply
9
Supply Circuit
9
Supply Voltage
9
Control (Low) Voltage
9
Electrical Ground
9
Electrical Rating Tables
9
Electrical Requirements
9
Room Thermostats
10
Thermostat Location
10
Heat Anticipators
10
Electrical & Thermostat Wiring Diagrams
11
Indoor Blower - Air Flow
14
Condenser Fan Motors
14
Blower Wheel Inspection
14
Cooling
14
Heating (Electric)
14
External Static Pressure
14
Checking External Static Pressure
15
Checking Approximate Airfl Ow
15
Electric Heat Strips
15
Airfl Ow Charts
16
Refrigerant Charging
16
Method of Charging
17
Undercharged Refrigerant Systems
17
Overcharged Refrigerant Systems
18
Restricted Refrigerant Systems
18
Capillary Tube Systems
19
Reversing Valve Description/Operation
19
Electrical Circuit and Coil
19
Testing Coil
19
Checking Reversing Valves
20
Touch Testing Heating/Cooling Cycle
20
Procedure for Changing Reversing Valve
20
Compressor Checks
21
Locked Rotor Voltage Test
21
Single Phase Connections
21
Determine Locked Rotor Voltage
21
Locked Rotor Amperage Test
21
Single Phase Running & Locked Rotor Amperage
21
External Overload
21
Checking the External Overload
21
Checking the Internal Overload
21
Compressor Single Phase Resistance Test
22
Compressor Replacement
22
Capacitors
23
Capacitor Check with Capacitor Analyzer
23
Capacitor Connections
23
Emergency Heat Switch
24
Wiring Diagram Index
25
9-18 Electrical Troubleshooting Chart - Cooling
39
2-Ton Electrical Troubleshooting Chart - Cooling
40
Troubleshooting Charts
41
Refrigerant System Diagnosis Cooling
41
Refrigerant System Diagnosis Heating
41
Electrical Troubleshooting Chart Heat Pump
42
4
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Friedrich H)A09K25 Specifications
General
Brand
Friedrich
Model
H)A09K25
Category
Air Conditioner
Language
English
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