Friedrich VERT-I-PAK VHA09K25RTP Guide

1 PB
Service/ Parts Manual
VERT-I-PAK
Standard Chassis Models
9K VHA - 09K25RTP, 09K34RTP, 09K50RTP
VHA - 09R25RTP, 09R34RTP, 09R50RTP
VHA - 18K25RTP, 18K34RTP, 18K50RTP, 18K75RTP
VHA - 18R25RTP, 18R34RTP, 18R50RTP, 18K75RTP
12K
18K
95992012_03
VHA - 12K25RTP, 12K34RTP, 12K50RTP
VHA - 12R25RTP, 12R34RTP, 12R50RTP
24K VHA - 24K25RTP, 24K34RTP, 24K50RTP, 24K75RTP, 24K10RTP
VHA - 24R25RTP, 24R34RTP, 24R50RTP, 24R75RTP, 24R10RTP
PTAC Direct Sales, Inc.
185 S. Kimball Ave.
Suite 1 30
Southlake, TX 76092
877.454.7822 (T)

2 PB
Table of Contents
INTRODUCTION 4
Important Safety Information 4
Personal Injury Or Death Hazards 5
Operation of Equipment in During Construction 7
Equipment Identication 8
Model and Serial Number Location 8
Model and Serial Number information is found on the Manufacturer’s DATA TAG, located on the front or top. 8
Model Number Reference Guide 9
Serial Number Reference Guide 10
SPECIFICATIONS 11
General Specications 11
Chassis Specications 9K, 12K 12
18K Dimensions 13
24K Dimensions 14
Electrical Data 15
Electrical Requirements 17
Electrical Ratings Table 17
Supply Air Flow and Data 19
OPERATION 21
Electronic Control Board Features 21
Electronic Sequence of Operation 22
Compressor Lock Out Time 23
Cooling Fan Delay 23
Heating Fan Delay 23
Fan Speed Change Delay 23
Room Air Sampling Feature 23
Low Voltage Interface Connections 23
Interface Connector Denitions 23
Remote Wall Thermostat 24
Remote Wall Thermostat Location 25
Desk Control 25
Auxiliary Fan Control 25
Unit Heat Control Operation - Heat Pump With Electric Heat 26
Refrigeration Sequence Of Operation 27
REMOVE AND INSTALL THE CHASSIS 29
Remove The Chassis 29
Servicing / Chassis Quick Changeouts 29
To Remove the Chassis from the Closet: 29
R-410A SEALED SYSTEM REPAIR 30
Refrigerant Charging 31
Undercharged Refrigerant Systems 32
Overcharged Refrigerant Systems 33
Restricted Refrigerant System 34
Sealed System Method of Charging/ Repairs 35
EXTERNAL STATIC PRESSURE 36
Checking External Static Pressure 36
Explanation of charts 37
Indoor Airow Data 37
Ductwork Preparation 37
Fresh Air Door 38
Checking Approximate Airow 38
Electric Heat Strips 38
COMPONENT TESTING 39
Hermetic Components Check 39
Reversing Valve Description And Operation 40
Testing The Reversing Valve Solenoid Coil 41
Checking The Reversing Valve 42
Touch Test Chart : To Service Reversing Valves 44
Compressor Checks 45
Compressor Replacement -Special Procedure in Case of Compressor Burnout 48

3 PB
Fan Motor 49
Capacitors 49
Heating Element and Limit Switch 50
Heater Elements And Limit Switches’ Specications 50
Drain Pan Valve 52
Thermistor Resistence Values (This Table Applies to All Thermistors) 53
Testing the Diagnostic Service Module 54
Testing the Electronic Control Board 54
Electronic Control Board Components Identication And Testing 55
24k Indoor Blower Motor 56
TROUBLESHOOTING 57
Error Codes and Alarm Status 57
Electrical Troubleshooting Chart - Cooling 59
9K Btu, 12K Btu, & 18K Btu 59
24K Btu 60
Electrical Troubleshooting Chart - Heat Pump 61
Troubleshooting Chart - Cooling 62
WIRING DIAGRAMS 63
9-12K 208/230V 63
9-12K 265V 64
18K 208/230V (2.5KW, 3.5KW, 5KW) 65
18K 265V (2.5KW, 3.5KW, 5.0KW) 66
18K 208/230V (7.5KW) 67
18K 265V (7.5KW) 68
24K 208/230V (2.5KW, 3.5KW, 5KW) 69
24K 208/230V (7.5KW AND 10KW) 70
24K 265V (2.5KW, 3.5KW, 5KW) 71
24K 265V (7.5KW and 10KW) 72
PARTS CATALOG 73
9K, 12K Unit Assembly 73
9K, 12K Refrigeration Assy 76
9K, 12K 208/230V 78
9K, 12K 265V 80
18K Unit Assembly 82
24K Unit Assembly 84
18K, 24K Refrigeration Assembly 86
18K Blower Assembly 89
24K Blower Assembly 91
18K 230V Control Box 93
24K 230V Control Box 95
18K 265V Control Box 97
24K 265V Control Box 99
AVAILABLE ACCESSORIES 101
WARRANTY 102
FRIEDRICH AUTHORIZED PARTS DEPOTS 103

4 PB
Your safety and the safety of others is very
important.
We have provided many important safety messages in this manual and on your appliance. Always read
and obey all safety messages.
This is a safety Alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and
others.
All safety messages will follow the safety alert symbol with the word
“WARNING”
or “CAUTION”. These words mean:
Indicates a hazard which, if not avoided, can result in severe personal
injury or death and damage to product or other property.
Indicates a hazard which, if not avoided, can result in personal injury and
damage to product or other property.
All safety messages will tell you what the potential hazard is, tell you
how to reduce the chance of injury, and tell you what will happen if the
instructions are not followed.
WARNING
Refrigeration system
under high pressure
Do not puncture, heat, expose to flame or
incinerate.
Only certified refrigeration technicians should
service this equipment.
R410A systems operate at higher pressures
than R22 equipment. Appropriate safe service
and handling practices must be used.
Only use gauge sets designed for use with
R410A.
Do not use standard R22 gauge sets.
NOTICE
CAUTION
WARNING
The information in this manual is intended for use by a qualied technician who is familiar with the safety procedures
required for installation and repair, and who is equipped with the proper tools and test instruments required to
service this product.
Installation or repairs made by unqualied persons can result in subjecting the unqualied person making such
repairs as well as the persons being served by the equipment to hazards resulting in injury or electrical shock
which can be serious or even fatal.
Safety warnings have been placed throughout this manual to alert you to potential hazards that may be encountered.
If you install or perform service on equipment, it is your responsibility to read and obey these warnings to guard
against any bodily injury or property damage which may result to you or others.
Important Safety Information
INTRODUCTION

5 PB
SAFETY
FIRST
WARNING AVERTISSEMENT ADVERTENCIA
Do not remove, disable or
bypass this unit’s safety
devices. Doing so may
cause fire, injuries, or
death.
Ne pas supprime, désactiver
ou contourner cette l´unité
des dispositifs de sécurité,
faire vous risqueriez de
provoquer le feu, les
blessures ou la mort.
No eliminar, desactivar o
pasar por alto los dispositi-
vos de seguridad de la
unidad. Si lo hace podría
producirse fuego, lesiones o
muerte.
ELECTRICAL HAZARDS:
• Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenance, or service.
• Make sure to follow proper lockout/tag out procedures.
• Always work in the company of a qualied assistant if possible.
• Capacitors, even when disconnected from the electrical power source, retain an electrical charge potential
capable of causing electric shock or electrocution.
• Handle, discharge, and test capacitors according to safe, established, standards, and approved procedures.
• Extreme care, proper judgment, and safety procedures must be exercised if it becomes necessary to test or
troubleshoot equipment with the power on to the unit.
• Do not spray water on the air conditioning unit while the power is on.
• Electrical component malfunction caused by water could result in electric shock or other electrically unsafe
conditions when the power is restored and the unit is turned on, even after the exterior is dry.
• Use air conditioner on a single dedicated circuit within the specied amperage rating.
• Use on a properly grounded outlet only.
• Do not cut or modify the power supply cord or remove the ground prong of the plug.
• Never operate the unit on an extension cord.
• Follow all safety precautions and use proper and adequate protective safety aids such as: gloves, goggles,
clothing, properly insulated tools, and testing equipment etc.
• Failure to follow proper safety procedures and/or these warnings can result in serious injury or death.
INTRODUCTION
Personal Injury Or Death Hazards

6 PB
• REFRIGERATION SYSTEM REPAIR HAZARDS:
• Use approved standard refrigerant recovering procedures and equipment to relieve high pressure before
opening system for repair.
• Do not allow liquid refrigerant to contact skin. Direct contact with liquid refrigerant can result in minor to
moderate injury.
• Be extremely careful when using an oxy-acetylene torch. Direct contact with the torch’s ame or hot surfaces
can cause serious burns.
• Make certain to protect personal and surrounding property with re proof materials and have a re extinguisher
at hand while using a torch.
• Provide adequate ventilation to vent off toxic fumes, and work with a qualied assistant whenever possible.
• Always use a pressure regulator when using dry nitrogen to test the sealed refrigeration system for leaks,
ushing etc.
• MECHANICAL HAZARDS:
• Extreme care, proper judgment and all safety procedures must be followed when testing, troubleshooting,
handling, or working around unit with moving and/or rotating parts.
• Be careful when, handling and working around exposed edges and corners of the sleeve, chassis, and other unit
components especially the sharp ns of the indoor and outdoor coils.
• Use proper and adequate protective aids such as: gloves, clothing, safety glasses etc.
• Failure to follow proper safety procedures and/or these warnings can result in serious injury or death.
• PROPERTY DAMAGE HAZARDS
• FIRE DAMAGE HAZARDS:
• Read the Installation/Operation Manual for the air conditioning unit prior to operating.
• Use air conditioner on a single dedicated circuit within the specied amperage rating.
• Connect to a properly grounded outlet only.
• Do not remove ground prong of plug.
• Do not cut or modify the power supply cord.
• Do not use extension cords with the unit.
• Be extremely careful when using acetylene torch and protect surrounding property.
• Failure to follow these instructions can result in re and minor to serious property damage.
• WATER DAMAGE HAZARDS:
• Improper installation, maintenance or servicing of the air conditioner unit can result in water damage to personal
items or property.
• Insure that the unit has a sufcient pitch to the outside to allow water to drain from the unit.
• Do not drill holes in the bottom of the drain pan or the underside of the unit.
• Failure to follow these instructions can result in damage to the unit and/or minor to serious property damage.
INTRODUCTION
Personal Injury Or Death Hazards

7 PB
INTRODUCTION
Operation of Equipment in During Construction
• OPERATION OF EQUIPMENT MUST BE AVOIDED DURING CONSTRUCTION PHASES WHICH
WILL PRODUCE AIRBORNE DUST OR CONTAMINTES NEAR OR AROUND AIR INTAKE
OPENINGS:
• Wood or metal framing;
• Drywalling or sheathing,
• Spackling or applying joint compound.
• Sanding or grinding.
• Moulding or trimwork.
NOTICE
Operating the equipment during any phase of
active construction noted above can void the
equipment’s warranty, and also lead to poor
performance and premature failure.

8PB
INTRODUCTION
This service manual is designed to be used in conjunction with the installation and operation manuals provided
with each air conditioning system.
This service manual was written to assist the professional service technician to quickly and accurately diagnose
and repair malfunctions.
Installation procedures are not given in this manual. They are given in the Installation and Operation Manual which
can be aquired on the Friedrich website (www.friedrich.com).
Model and Serial Number Location
Equipment Identication
Figure 101 (Equipment Identication Example)
Figure 102 (Model and Serial Number Location)
Model and Serial Number information is found on the Manufacturer’s DATA TAG, located on the front or top.
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 
 
 

9 PB
INTRODUCTION
Model Number Reference Guide
SERIES
V=VERTICAL SERIES
FUNCTION
H - HEAT PUMP
DESIGN SERIES
A = 32”/47” CABINET
NOMINAL CAPACITY
A SERIES (Btu/h)
09= 9,000
12 = 12,000
18 = 18,000
24 = 24,000
ENGINEERING REVSION
LETTER INDICATES AN
ENGINEERING MODIFI-
CATION TO AN EXISTING
MODEL
MARKETING SUFFIX LETTER
INDICATES MODIFICATION TO
AN EXISTING MODEL SERIES
OPTIONS
RT = STANDARD REMOTE
OPERATION
ELECTRIC HEATER SIZE
A SERIES
25 = 2.5 KW 75 = 7.5KW
34 = 3.4 KW 10 = 10KW
50 = 5.0 KW
VOLTAGE
K = 208/230V - 1PH-60Hz
R = 265V
IMPORTANT: It will be necessary for you to accurately identify the unit you are servicing, so you can be certain of a
proper diagnosis and repair.
Figure 103
V H A 09 K 34 RT P - A

10 PB
INTRODUCTION
Serial Number Reference Guide
YEAR OF MANUFACTURE
17 = 2017 18 = 2018
19 = 2019 20 = 2020
21 = 2021 22 = 2022
MONTH OF MANUFACTURE
01 = JANUARY
02 = FEBRUARY
03 = MARCH
04 = APRIL
05 = MAY
06 = JUNE
07 = JULY
08 = AUGUST
09 = SEPTEMBER
10 = OCTOBER
11 = NOVEMBER
12 = DECEMBER
MANUFACTURING LOCATION
NUMERIC SEQUENCE
FIRST UNIT OF EACH MONTH = 00001
Figure 104
17 12 M 00001

11 PB
SPECIFICATIONS
General Specications
MODEL VHA09K VHA09R VHA12K VHA12R VHA18K VHA18R VHA24K VHA24R
COOLING DATA
TOTAL COOLING
CAP.
9300 9300 11500 11500 18400 18400 22500 22500
SENSIBLE COOL
CAP.
7440 7440 9085 9085 13430 13430 15750 15750
POWER (W) 845 845 1045 1045 1670 1670 2045 2045
EER 11.0 11.0 11.0 11.0 11.0 11.0 11.0 11.0
HEATER SIZE (KW) 2.5/3.4/ 5.0 2.5/3.4/ 5.0 2.5/3.4/ 5.0 2.5/3.4/ 5.0 2.5/3.4/
5.0/7.5
2.5/3.4/
5.0/7.5
2.5/3.4/
5.0/7.5/ 10.0
2.5/3.4/
5.0/7.5/ 10.0
HEAT PUMP DATA
REVERSE HEATING
BTU
8300 8300 10600 10600 16700 16700 19500 19500
COP @ 47F 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3
HEATING POWER
(W)
730 730 940 940 1480 1480 1732 1732
HEATING CURRENT
(A)
3.6 3.1 4.5 3.7 7.0 6.1 9.2 9.2
ELECTRICAL DATA
VOLTAGE (1 PHASE,
60 HZ)
208-230 265 208-230 265 208-230 265 208-230 265
VOLT RANGE 197-253 239-292 197-253 239-292 197-253 239-292 197-253 239-292
COOLING CUR-
RENT (A)
4.1 3.5 4.9 4.0 7.9 7.0 10.5 10.5
AMPS L.R 21.0 21.0 23.0 23.0 37.0 37.0 44.0 44.0
INDOOR MOTOR
(HP)
1/4 1/4 1/4 1/4 1/4 1/4 1/5 1/5
INDOOR MOTOR (A) 1.2 1.2 1.2 1.2 0.42 0.42 1.4 1.4
OUTDOOR MOTOR
(HP)
————1/4 1/4 1/4 1/4
OUTDOOR MOTOR
(A)
————1.6 1.6 1.7 1.7
PHYSICAL
DIMENSIONS
(W X D X H)
23” X23” X32” 23”X 23”X32” 23”X 23”X32” 23”X 23”X32” 23”X 23”X47” 23”X 23”X47” 23”X 23”X52” 23”X 23”X52”
NET WEIGHT (LBS) 142 144 147 149 190 192 225 227
R410A CHARGE
(OZ)
37.0 37.0 42.1 42.1 57 57 62 62
AIRFLOW DATA
INDOOR CFM LOW HIGH LOW HIGH LOW HIGH LOW HIGH LOW HIGH LOW HIGH LOW HIGH LOW HIGH
.10” ESP 430 490 430 490 430 490 430 490 630 675 630 675 660 700 660 700
.15” ESP 410 470 410 470 410 470 410 470 595 640 595 640 615 665 615 665
.20” ESP 360 440 360 440 360 440 360 440 550 600 550 600 575 625 575 625
.25” ESP 310 400 310 400 310 400 310 400 505 550 505 550 525 580 525 580
.30” ESP 260 350 260 350 260 350 260 350 455 500 455 500 485 540 485 540
.35" ESP --------400 445 400 445 450 500 450 500
.40" ESP --------345 400 345 400 415 465 415 465
VENT CFM
UP TO " " CFM 60 60 60 60 60 60 60 60
Figure 201 (General Specs)

12 PB
SPECIFICATIONS
Chassis Specications 9K, 12K
DUC T
DIAMETER
SUPPLY
AIR
CONDEN SE R
INLET AIR
CONDENSER
AIR
EXHAUST
RETURN
AIR
SideFront Rear
23 1/8”
10”
2 15/16”
29 1/2” 29 1/2”
1 1/2”
23 1/8”
1/8” 10
1/2”
31”
19
UNIT TOP VIEW DIMENSIONS
O utside Wall
Figure 202 (9-12K Chassis Specs)

13 PB
SPECIFICATIONS
18K Dimensions
Figure 203 (18K Chassis Specs)
UNIT TOP VIEW DIMENSIONS
42 5/8 39 3/4
2 3/16
5 1/16
31
11 11/16
47 15/16
2 1/2
10
DUCT
DIAMETER
SUPPLY
AIR
AIR
RETURN
CONDENSER
INLET
AIR
ENTRY
ELECTRICAL
BOTH SIDES
CONDENSER
AIR
EXHAUST
FRONT SIDE REAR
1 1/2
electrical
entrance
control box
22
5
/
16
"
8
3
/
8
"
6
3
/
16
"
4
3
/
16
"
7
3
/
16
"
5
5
/
16
"

14 PB
SPECIFICATIONS
24K Dimensions
Figure 204 24K Chassis Specs)
UNIT TOP VIEW DIMENSIONS
46 23/32 51 7/8
1 1/2
44
2 1/2
CONDENSER
INLET
AIR
CONDENSER
AIR
EXHAUST
FRONT SIDE REAR
6 55/64 DUCT
1 DUCT
ENTRY
ELECTRICAL
BOTH SIDES
AIR
RETURN
15 7/16
31 9/32
5 5/32
20 5/8 DUCT
SUPPLY
AIR
3 55/64
1 1/2
12 19/64
1 1/2
6 55/64
20 5/8
Outside Wall

15 PB
SPECIFICATIONS
Electrical Data
MODEL 9K 12K
HEATER WATTS 2050-2500 2780-3400 4090-5000 2050-2500 2780-3400 4090-5000
VOLTAGE 208-230
ELECTRIC HEATING BTU 7000-8500 9500-11600 13900-17000 7000-8500 9500-11600 13900-17000
ELEC. HEATING CUR-
RENT (AMPS)
11.1-12.0 14.6-16.0 20.9-22.9 11.1-12.0 14.6-16.0 20.9-22.9
MINIMUM CIRCUIT
AMPACITY
15 20.0 29.2 15 20.0 29.2
BRANCH CIRCUIT FUSE
(AMPS)
15 20 30 15 20 30
LRA - COMPRESSOR
(AMPS)
21.0 21.0 21.0 23.0 23.0 23.0
BASIC HEATER SIZE 2.5 KW 3.4 KW 5.0 KW 2.5 KW 3.4 KW 5.0 KW
POWER CONNECTION HARD WIRED
RECOMMENDED
BRANCH CIRCUIT WIRE
SIZES* AWG-AMERI-
CAN WIRE GAUGE
14 12 10 12 12 10
Figure 205 (9&12K 208/230V Electrical Data)
Figure 206 (9&12K 265 Electrical Data)
MODEL 9R 12R
HEATER WATTS 2500 3400 5000 2500 3400 5000
VOLTAGE 265
ELECTRIC HEATING BTU 8500 11600 17000 8500 11600 7000
ELEC. HEATING CUR-
RENT (AMPS)
10.5 13.9 19.9 10.5 13.9 19.9
MINIMUM CIRCUIT
AMPACITY
13.8 18.0 25.7 13.8 18.0 25.7
BRANCH CIRCUIT FUSE
(AMPS)
15 20 30 15 20 30
LRA - COMPRESSOR
(AMPS)
21.0 21.0 21.0 23.0 23.0 23.0
BASIC HEATER SIZE 2.5 KW 3.4 KW 5.0 KW 2.5 KW 3.4 KW 5.0 KW
POWER CONNECTION HARD WIRED
RECOMMENDED
BRANCH CIRCUIT WIRE
SIZES* AWG-AMERI-
CAN WIRE GAUGE
14 12 10 12 12 10

16 PB
SPECIFICATIONS
Electrical Data
MODEL 18K 24K
HEATER WATTS 2050-2500 2780-3400 4090-5000 2050-2500 2780-3400 4090-5000 6135-7500 8180-
10000
VOLTAGE 208-230
ELECTIC HEATING BTU 7000-8500 9500-11600 13900-
17000
7000-8500 9500-11600 13900-
17000
20900-
25600
27900-
34100
ELEC. HEATING CUR-
RENT (AMPS)
11.1-12.0 14.6-16.0 20.9-22.9 11.3-12.3 14.8-16.2 21.1-23.1 30.9-34.0 40.7-44.9
MINIMUM CIRCUIT
AMPACITY
15.0 20.0 29.2 15.4 20.3 29.0 42.6 56.1
BRANCH CIRCUIT FUSE
(AMPS)
15 20 30 20 25 30 45 60
LRA - COMPRESSOR
(AMPS)
37.0 37.0 37.0 44.0 44.0 44.0 44.0 44.0
BASIC HEATER SIZE 2.5KW 3.4KW 5.0KW 2.5KW 3.4KW 5.0KW 7.5KW 10.0KW
POWER CONNECTION HARD WIRED
RECOMMENDED
BRANCH CIRCUIT WIRE
SIZES* AWG-AMERI-
CAN WIRE GAUGE
14 12 10 12 10 10 6 4
MODEL 18R 24R
HEATER WATTS 2500 3400 5000 2500 3400 5000 7500 10000
VOLTAGE 265
ELECTIC HEATING BTU 8500 11600 17000 8500 11600 17000 25600 34100
ELEC. HEATING CUR-
RENT (AMPS)
10.5 13.9 19.9 10.8 14.2 20.3 29.7 39.1
MINIMUM CIRCUIT
AMPACITY
13.8 18.0 25.7 13.6 17.8 25.4 37.2 49.0
BRANCH CIRCUIT FUSE
(AMPS)
15 20 30 20 20 30 40 50
LRA - COMPRESSOR
(AMPS)
37.0 37.0 37.0 44.0 44.0 44.0 44.0 44.0
BASIC HEATER SIZE 2.5KW 3.4KW 5.0KW 2.5KW 3.4KW 5.0KW 7.5KW 10.0KW
POWER CONNECTION HARD WIRED
RECOMMENDED
BRANCH CIRCUIT WIRE
SIZES* AWG-AMERI-
CAN WIRE GAUGE
14 12 10 12 12 10 6 4
Figure 207 (18&24K 208/230V Electrical Data)
Figure 208 (18&24K 265V Electrical Data)

17 PB
SPECIFICATIONS
Electrical Requirements
ELECTRICAL REQUIREMENTS
WIRE SIZE USE ONLY WIRE SIZE RECOMMENDED FOR SINGLE OUTLET BRANCH CIRCUIT.
FUSE/CIRCUIT BREAK-
ER
USE ONLY TYPE AND SIZE FUSE OR HACR CIR- CUIT BREAKER INDICATED ON UNIT’S
RATING GUIDE. PROPER OVER CURRENT PROTECTION TO THE UNITS IS THE RESPON-
SIBILITY OF THE OWNER.
GROUNDING UNIT MUST BE GROUNDED FROM BRANCH CIRCUIT TO UNIT, OR THROUGH SEPARATE
GROUND WIRE PROVIDED ON PERMANENTLY CONNECTED UNITS. ENSURE THAT
BRANCH CIRCUIT OR GENERAL PUR- POSE OUTLET IS GROUNDED.
WIRE SIZING USE RECOMMENDED WIRE SIZE GIVEN IN TABLES AND INSTALL A SINGLE BRANCH
CIRCUIT. ALL WIRING MUST COMPLY WITH LOCAL AND NATIONAL CODES. NOTE: USE
COPPER CONDUCTORS ONLY.
Recommended Branch Circuit Sizes*
Nameplate Maximum
Circuit Breaker Size
AWG Wiring Size**
15A 14
20A 12
30A 10
45A 6
60A 4
Electrical Ratings Table
NOTE: Use copper conductors ONLY. Wire sizes are per NEC.
AWG - American Wire Gauge
* Single circuit from main box.
** Based on 100’ or less of copper, single insulated conductor
at 60˚ C
WARNING
Electrical Shock Hazard.
Turn OFF electric power before service or instal-
lation.
Unit must be properly grounded.
Unit must have correct fuse or circuit breaker pro-
tection. Unit’s supply circuit must have the correct
wire conductor size. All electrical connections and
and conform to the National Electrical Code and all
local codes which have jurisdiction. Failure to do so
can result in property
damage, personal injury and/or death.
NOTE: ALL 230/208 CHASSIS MUST BE HARD WIRED WITH A PROPERLY SIZED BREAKER. SEE UNIT NAMEPLATE
FOR SPECIFIC ELECTRICAL REQUIREMENTS.
USE HACR TYPE BREAKERS TO AVOID NUISANCE TRIPS. ALL FIELD WIRING MUST BE DONE IN ACCORDANCE
WITH NEC AND LOCAL CODES. IT IS THE INSTALLER’S
RESPONSIBILITY TO ENSURE THAT THE ELECTRICAL CODES ARE MET.

18 PB
SPECIFICATIONS
Sound Data
Figure 209 (Sound Data)
Sound Power and STC
MODEL INDOOR (DBA) OUTDOOR (DBA)
STC HIGH COOL LOW COOL HIGH COOL LOW COOL
VHA09 23 63.6 61.4 75.4 72.9
VHA12 23 63.0 60.8 75.3 72.7
VHA18 24 67.2 65.7 74.9 74.8
VHA24 25 67.8 66.4 78.5 72.7

19 PB
SPECIFICATIONS
Supply Air Flow and Data
MODEL
VHA 09/12 VHA 18 VHA 24
FAN SPEED LOW HIGH LOW HIGH LOW HIGH
ESP (“) CFM
0.0” 470 520 730 800 755 805
0.05” 460 510 670 735 700 750
0.10” 430 490 630 675 660 700
0.15” 410 470 595 640 615 665
0.20” 360 440 550 600 575 625
0.25” 310 400 505 550 525 580
0.30” 260 350 455 500 485 540
0.35” -- -- 400 445 450 500
0.40” -- -- 345 400 415 465
Condenser External Static Pressure
Model Design Maximum
CFM ESP ("WC) ESP ("WC)
VHA09 650 0.03 0.12
VHA12 650 0.03 0.12
VHA18 950 0.03 0.12
VHA24 980 0.03 0.12
Indoor air ow may be determined by measuring the external static pressure (ESP) of the duct system using an inclined
manometer or magnahelic gauge and consulting the above chart to derive actual air ow. Under no circumstances
should the large chassis Vert-I-Pak equipment be operated at an external static pressure in excess of 0.4” W.C. Operation
of the Vert-I-Pak under these conditions will result in inadequate air ow, leading to poor performance and/or
premature component failure.
Control
For LOW speed only operation, connect the fan output terminal from the thermostat to the GL terminal of the electronic
control.
For HIGH speed only operation, connect the fan output terminal from the thermostat to the GH terminal of the electronic
control.
For thermostats with two-speed capability, connect the LOW speed output to the GL terminal and the HIGH speed output
to the GH terminal.
Condenser CFM & External Static Pressure
VPAK is designed to install through an exterior wall with a plenum (VPAWP-8, VPAWP-14) and a Friedrich external louver .
NOTE: If the Friedrich designed plenum and louver combinations are not used, the selections and design must be evaluated
by Friedrich to ensure the total pressure drop does not exceed the maximum allowable limits.
Figure 210 (Indoor CFM & External Static Pressure)
Figure 211 (Condenser CFM & External Static Pressure)

20 PB
SPECIFICATIONS
Required Minimum Clearances
6"
60" 60"
60"
60" 60"
60"
6" 6" 12"
60"
60"
60"
60" 60"
64"
160 “
32 “
Figure A Figure B Figure C Figure D
Building Exterior Unit Opening Requirements
be installed no closer than 12” apart when two units are side by side. If three or more units are to operate next to one
with adjacent, outset units, a minimum distance of 64” must be kept between units (Figure C). Also, a vertical clearance of
ground.
Grill Clearance Requirements
Where obstructions are present use the
following guidelines for proper spacing from
the VPAK exterior louvered grill. Friedrich
recommends that ALL obstructions are a
minimum of 72” from the exhaust.
For minor obstruction(s) such as lamp poles
or small shrubbery, a clearance of 24” from
the outdoor louver must be maintained.
For major obstructions such as a solid
fence, wall, or other heat rejecting devices
like a condensing unit, a minimum distance
of 72” must be kept.
24"
POLE
BUILDING
SHRUB
FENCE
OUTDOOR
CONDENSING
UNIT
MAJOR OBSTRUCTIONS
VPAK VPAK VPAK
The the example pictured above is for reference only and does not represent all possible installations. Please contact Friedrich
Air Conditioning for information regarding eects of other installation arrangements.
Figure 212