L-BSuffi x, R410A Models
Single Package Vertical Air Conditioning System
9-18K24K
A Series Electronic Controls
Table of Contents
PERSONAL INJURY OR DEATH HAZARDS
IMPORTANT SAFETY INFORMATION
ELECTRICAL HAZARDS
NOTICE
MECHANICAL HAZARDS
REFRIGERATION SYSTEM HAZARDS
PROPERTY DAMAGE HAZARDS
INTRODUCTION
FIRE DAMAGE HAZARDS
WATER DAMAGE HAZARDS
SampleNameplateseeyourchassis nameplate
00001
VPAK SERIAL NUMBER IDENTIFICATION GUIDE
MODEL IDENTIfiCATION GUIDE
ELECTRICAL REQUIREMENTS
NOTICE
ELECTRIC SHOCK HAZARD
ELECTRICAL DATA
For VPAK Cool with Electric Heat 24K
Chassis Specifi cations
For VPAK Heat Pumps 24K
ELECTRICAL DATA
Extended Cooling Performance Data
TECHNICAL SERVICE DATA Cooling Performance Data
Model #
Model #
ELECTRONIC CONTROL BOARD FEATURES
Heat Mode in Cool with Electric Heat Units
Compressor Heat Heat / Cool Units
Heat Pump With Electric Heat Operation
Condition
Heating Fan Delay
Cooling Fan Delay
Fan Speed Change Delay
RoomAirSamplingFeature
Remote Wall Thermostat
Connecting a Remote Wall Thermostat
Low Voltage Interface Connections
Figure 1 Interface Connector Location
REMOTE WALL THERMOSTAT LOCATION
SERVICE
Warranty
Servicing/ChassisQuickChangeouts
Front Side Right Side
VPAK 9-18KBTU UNITS COMPONENTS IDENTIFICATION
Left and Front Sides Left and Back Sides
Ground Air Intake
Air Intake Front Side
VPAK 24K BTU UNITS COMPONENTS IDENTIFICATION
Left and Back Sides
Right Side Condenser
Check Error Codes
ERROR CODES AND ALARM STATUS
Error
Problem
Testing the Diagnostic Service Module
COMPONENTS TESTING
Testing the Electronic Control Board
Diagnostic Service Module
2.Test the 10 amp/250 VAC fuse for continuity
CAPACITORS
COMPONENTS TESTING Continued
Capacitor Check with Capacitor Analyzer
Capacitor Connections
COMPONENTS TESTING CONTINUED
Checking External Static Pressure
Determining the Indoor CFM: Chart A – CFM
External Static Pressure
Chart B – Correction Multipliers
Explanation of charts
Indoor Airflow Data
Ductwork Preparation
Refrigeration Assembly
REFRIGERATION SEQUENCE OF OPERATION
Refrigerant Charging
SEALED REFRIGERATION SYSTEM REPAIRS
Undercharged Refrigerant Systems
Method Of Charging / Repairs
BURN HAZARD
FREEZE HAZARD
Restricted Refrigerant System
Overcharged Refrigerant Systems
METERING DEVICE
HERMETIC COMPONENTS CHECK
CHECK VALVE
Capillary Tube Systems
REVERSING VALVE DESCRIPTION/OPERATION
TESTING THE COIL
CHECKING THE REVERSING VALVE
ELECTRIC SHOCK HAZARD
Touch Test in Heating/Cooling Cycle
Procedure For Changing Reversing Valve
NOTICE
Single Phase Running and L.R.A. Test
Single Phase Connections
COMPRESSOR CHECKS
Locked Rotor Voltage L.R.V. Test
External Overload VPAK 9, 12, 18 K Btus
Single Phase Resistance Test
Internal Overload VPAK 24 K Btus
BURN HAZARD
NOTICE
COMPRESSOR REPLACEMENT
Recommended procedure for compressor replacement
ROUTINE MAINTENANCE
Sizing Guide
HOW IS ALL OF THE INSTALLATION?
GOOD
FAHRENHEIT
THERMISTORS’ RESISTANCE VALUES
This Table Applies to All Thermistors
9K BTU, 12K BTU, & 18K BTU
ELECTRICAL TROUBLESHOOTING CHART - COOLING
NO COOLING OPERATION
check for Error
ELECTRICAL TROUBLESHOOTING CHART - COOLING
24K BTU
Before continuing check for Error Codes, see
electronics control diagnostics on page
SYSTEM COOLS WHEN HEATING IS DESIRED
ELECTRICAL TROUBLESHOOTING CHART HEAT PUMP
HEAT PUMP MODE
Is Selector Switch set for Heat?
TROUBLESHOOTING CHART - HEATING HEAT PUMP
TROUBLESHOOTING CHART - COOLING
PROBLEM
REFRIGERANT SYSTEM DIAGNOSIS COOLING
COOL WITH ELECTRIC HEAT
REMOTE WALL THERMOSTAT WIRING DIAGRAMS
C GH GL B Y W R RC GH GL O/B Y W
HEAT PUMP WITH ELECTRIC HEAT
LEGEND FOR TSTAT WIRING HARNESS
WIRING DIAGRAM COOL EH 2.5KW, 3.4KW, 5.0KW
VEA 9K12K/18K
GH GL B Y
LEGEND FOR TSTAT WIRING HARNESS
WIRING DIAGRAM HEAT PUMP EH 2.5KW, 3.4KW, 5.0KW
VHA 9K/12K/18K
92160301
C S R
COOL WITH ELECTRIC HEAT
92160601
COOL WITH ELECTRIC HEAT
LEGEND FOR TSTAT WIRING HARNESS
7.5KW, 10.0KW
92160701
LEGEND FOR TSTAT WIRING HARNESS
WIRING DIAGRAM HEAT PUMP EH
2.5KW, 3.4KW, 5.0KW
VHA 24K
LEGEND FOR TSTAT WIRING HARNESS
WIRING DIAGRAM HEAT PUMP EH
7.5KW, 10.0KW
VHA 24K
VPAWP1-8
ACCESSORIES
VPAWP1-14
VPAL2
SINGLE PACKAGE VERTICAL AIR CONDITIONERS
LIMITED WARRANTY
VERT-I-PAK A SERIES
3 5 11
2011 VPAK 9K-18KBTU/h Models
8 4 7 1 9 10
2011 VPAK 9K-18KBTU/h Models
16 17 15 13 14 12
25 26 16 28
2011 VPAK 9K-18KBTU/h Models
2011 VPAK 9K-18KBTU/h Models
20 19 18 22 21
9K-18KBTU/h Models
2011 VPAK Parts List
2011 VPAK 24K BTU/h Models
9 8 3
2 4 1 6 5
2011 VPAK 24K BTU/h Models
14 10 16
15 23 13 12 22 11 21 19 20
2011 VPAK 24K BTU/h Models
24 26 30 29 28 25 14
2011 VPAK 24K BTU/h Models
33 31 32
2011 VPAK Parts List
24K BTU/h Models
FRIEDRICH AUTHORIZED PARTS DEPOTS
CUSTOMER SATISFACTION and QUALITY ASSURANCE
TECHNICAL SUPPORT CONTACT INFORMATION
FRIEDRICH AIR CONDITIONING CO
VPK-ServMan-L
FRIEDRICH AIR CONDITIONING CO
Printed in the U.S.A