Single Package Vertical Air Conditioning System
L-BSuffi x, R410A Models
9-18K24K
A Series Electronic Controls
Table of Contents
IMPORTANT SAFETY INFORMATION
PERSONAL INJURY OR DEATH HAZARDS
ELECTRICAL HAZARDS
NOTICE
REFRIGERATION SYSTEM HAZARDS
MECHANICAL HAZARDS
INTRODUCTION
PROPERTY DAMAGE HAZARDS
FIRE DAMAGE HAZARDS
WATER DAMAGE HAZARDS
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SampleNameplateseeyourchassis nameplate
VPAK SERIAL NUMBER IDENTIFICATION GUIDE
MODEL IDENTIfiCATION GUIDE
NOTICE
ELECTRICAL REQUIREMENTS
ELECTRIC SHOCK HAZARD
ELECTRICAL DATA
Chassis Specifi cations
For VPAK Cool with Electric Heat 24K
For VPAK Heat Pumps 24K
ELECTRICAL DATA
TECHNICAL SERVICE DATA Cooling Performance Data
Extended Cooling Performance Data
Model #
Model #
ELECTRONIC CONTROL BOARD FEATURES
Compressor Heat Heat / Cool Units
Heat Mode in Cool with Electric Heat Units
Heat Pump With Electric Heat Operation
Condition
Cooling Fan Delay
Heating Fan Delay
Fan Speed Change Delay
RoomAirSamplingFeature
Connecting a Remote Wall Thermostat
Remote Wall Thermostat
Low Voltage Interface Connections
Figure 1 Interface Connector Location
SERVICE
REMOTE WALL THERMOSTAT LOCATION
Warranty
Servicing/ChassisQuickChangeouts
VPAK 9-18KBTU UNITS COMPONENTS IDENTIFICATION
Front Side Right Side
Left and Front Sides Left and Back Sides
Ground Air Intake
VPAK 24K BTU UNITS COMPONENTS IDENTIFICATION
Air Intake Front Side
Left and Back Sides
Right Side Condenser
ERROR CODES AND ALARM STATUS
Check Error Codes
Error
Problem
COMPONENTS TESTING
Testing the Diagnostic Service Module
Testing the Electronic Control Board
Diagnostic Service Module
2.Test the 10 amp/250 VAC fuse for continuity
COMPONENTS TESTING Continued
CAPACITORS
Capacitor Check with Capacitor Analyzer
Capacitor Connections
COMPONENTS TESTING CONTINUED
External Static Pressure
Determining the Indoor CFM: Chart A – CFM
Checking External Static Pressure
Explanation of charts
Chart B – Correction Multipliers
Indoor Airflow Data
Ductwork Preparation
REFRIGERATION SEQUENCE OF OPERATION
Refrigeration Assembly
SEALED REFRIGERATION SYSTEM REPAIRS
Refrigerant Charging
Method Of Charging / Repairs
Undercharged Refrigerant Systems
BURN HAZARD
FREEZE HAZARD
Overcharged Refrigerant Systems
Restricted Refrigerant System
HERMETIC COMPONENTS CHECK
METERING DEVICE
CHECK VALVE
Capillary Tube Systems
TESTING THE COIL
REVERSING VALVE DESCRIPTION/OPERATION
CHECKING THE REVERSING VALVE
ELECTRIC SHOCK HAZARD
NOTICE
Procedure For Changing Reversing Valve
Touch Test in Heating/Cooling Cycle
Single Phase Connections
Single Phase Running and L.R.A. Test
COMPRESSOR CHECKS
Locked Rotor Voltage L.R.V. Test
Single Phase Resistance Test
External Overload VPAK 9, 12, 18 K Btus
Internal Overload VPAK 24 K Btus
BURN HAZARD
Recommended procedure for compressor replacement
COMPRESSOR REPLACEMENT
NOTICE
ROUTINE MAINTENANCE
GOOD
HOW IS ALL OF THE INSTALLATION?
Sizing Guide
This Table Applies to All Thermistors
THERMISTORS’ RESISTANCE VALUES
FAHRENHEIT
ELECTRICAL TROUBLESHOOTING CHART - COOLING
9K BTU, 12K BTU, & 18K BTU
NO COOLING OPERATION
check for Error
24K BTU
ELECTRICAL TROUBLESHOOTING CHART - COOLING
Before continuing check for Error Codes, see
electronics control diagnostics on page
ELECTRICAL TROUBLESHOOTING CHART HEAT PUMP
SYSTEM COOLS WHEN HEATING IS DESIRED
HEAT PUMP MODE
Is Selector Switch set for Heat?
TROUBLESHOOTING CHART - COOLING
TROUBLESHOOTING CHART - HEATING HEAT PUMP
PROBLEM
REFRIGERANT SYSTEM DIAGNOSIS COOLING
REMOTE WALL THERMOSTAT WIRING DIAGRAMS
COOL WITH ELECTRIC HEAT
C GH GL B Y W R RC GH GL O/B Y W
HEAT PUMP WITH ELECTRIC HEAT
WIRING DIAGRAM COOL EH 2.5KW, 3.4KW, 5.0KW
LEGEND FOR TSTAT WIRING HARNESS
VEA 9K12K/18K
GH GL B Y
WIRING DIAGRAM HEAT PUMP EH 2.5KW, 3.4KW, 5.0KW
LEGEND FOR TSTAT WIRING HARNESS
VHA 9K/12K/18K
92160301
92160601
COOL WITH ELECTRIC HEAT
C S R
LEGEND FOR TSTAT WIRING HARNESS
COOL WITH ELECTRIC HEAT
7.5KW, 10.0KW
92160701
WIRING DIAGRAM HEAT PUMP EH
LEGEND FOR TSTAT WIRING HARNESS
2.5KW, 3.4KW, 5.0KW
VHA 24K
WIRING DIAGRAM HEAT PUMP EH
LEGEND FOR TSTAT WIRING HARNESS
7.5KW, 10.0KW
VHA 24K
ACCESSORIES
VPAWP1-8
VPAWP1-14
VPAL2
VERT-I-PAK A SERIES
LIMITED WARRANTY
SINGLE PACKAGE VERTICAL AIR CONDITIONERS
8 4 7 1 9 10
2011 VPAK 9K-18KBTU/h Models
3 5 11
16 17 15 13 14 12
2011 VPAK 9K-18KBTU/h Models
2011 VPAK 9K-18KBTU/h Models
25 26 16 28
20 19 18 22 21
2011 VPAK 9K-18KBTU/h Models
2011 VPAK Parts List
9K-18KBTU/h Models
2 4 1 6 5
9 8 3
2011 VPAK 24K BTU/h Models
15 23 13 12 22 11 21 19 20
14 10 16
2011 VPAK 24K BTU/h Models
24 26 30 29 28 25 14
2011 VPAK 24K BTU/h Models
33 31 32
2011 VPAK 24K BTU/h Models
24K BTU/h Models
2011 VPAK Parts List
CUSTOMER SATISFACTION and QUALITY ASSURANCE
FRIEDRICH AUTHORIZED PARTS DEPOTS
TECHNICAL SUPPORT CONTACT INFORMATION
FRIEDRICH AIR CONDITIONING CO
Printed in the U.S.A
FRIEDRICH AIR CONDITIONING CO
VPK-ServMan-L