Friedrich VRP12K Building instructions

1 PB
Service/ Parts Manual
VRP
96261401_01
Model Voltage BTU
VRP12K 230 12,000
VRP12R 265 12,000
VRP24K 230 24,000
VRP24R 265 24,000
VRP36K 230 36,000

2 PB
TABLE OF CONTENTS
Table of Contents
INTRODUCTION‑ 6
VRP® Variable Speed System vs. Fixed‑speed System‑ 7
FreshAire™ Conditioned Fresh Air‑ 8
Reheat Coil ‑ Augments VRP’s Dehumidification Capability‑ 9
Important Safety Information‑ 10
Personal Injury Or Death Hazards‑ 12
Model and Serial Number Identification Guides‑ 13
SPECIFICATIONS‑ 14
Cooling Performance‑ 14
12k Extended Cooling Performance Data‑ 15
24k Extended Cooling Performance Data‑ 16
12 and 24k Extended Heating Performance Data‑ 17
Air Flow Data ‑12k and 24k‑ 18
Air Flow Data ‑36k‑ 19
Electrical Data‑ 20
12k and 24k Unit Dimensional Data‑ 21
36k Unit Dimensional Data‑ 22
12k and 24k Unit Installation Dimensional Data‑ 23
12k and 24k Accessories Dimensional Data‑Louvers & Return Access Door ‑ 24
12k and 24k Accessories Dimensional Data ‑ Wall Plenums ‑ 25
36k Accessories Dimensional Data‑Louvers‑ 26
OPERATION‑ 27
Sequence Of Operations‑ 27
Wall Controller Operation‑ 28
FreshAire Control‑ 30
Startup‑Process‑ 31
Firmware Overview‑ 31
Firmware Overview‑ 32
VPXWC Overview‑ 33
Wall Controller Firmware‑ 34
FMC Firmware via Wall Controller (WC)‑ 35
MCS Firmware via Wall Controller (WC)‑ 36
VRPXWC Operating Modes‑ 37
Fan Operating Modes‑ 38
Cooling Operating Mode‑ 40
Heating Operating Mode‑ 41
Button Light Functions‑ 42
VRPXWC Button Sequences‑ 43
Component Identification‑ 44
Indoor Coil 12 & 24k‑ 45
Indoor Coil 36k‑ 46
Indoor Blower‑ 47
Outdoor Coil‑ 48
Outdoor Fan‑ 49
Compressor‑ 50
Electric Heater‑ 51
Electronic Expansion Valve‑ 52
4‑Way Reversing Valve‑ 53
Remaining Components (Side View)‑ 54

3 PB
TABLE OF CONTENTS
VRP Control Boards‑ 55
Main Controller‑ 56
Motor Control Sub‑System (MCS)‑ 58
Heater Board‑ 60
Compressor Control‑ 61
EEV Control‑ 62
Reheat Control‑ 63
Condensate Base Pan Heater‑ 64
Condensate Sump Pan ‑ 36k Models‑ 65
INSTALLATION‑ 66
VRP Required Minimum Clearances‑ 67
Installation Orientations 12&24k‑ 68
Installation Orientations 36k‑ 69
Exterior Wall Opening Dimensios 12 &24k‑ 70
Exterior Wall Opening Dimensios 36k‑ 72
Interior(Closet) Wall Opening Dimensions 12 & 24k‑ 73
Interior(Closet) Wall Opening Dimensions 36k‑ 74
Preliminary Plumbing‑ 75
Wall Plenum Installation 12 & 24k‑ 76
Wall Plenum Installation 36k‑ 80
Louver Installation‑ 84
Final Wall Plenum And Architectual Louver Installation‑ 85
Unit Installation‑ 86
Final Unit Installation Overview‑ 87
Side Configuration Installation‑ 88
Unit Drain Installation‑ 89
Ductwork Installation‑ 90
Wall Controller Installation 12 & 24k‑ 91
Wall Controller Installation 36k‑ 95
Electrical Installation 12 & 24k‑ 97
Return Air Door Installation12 & 24k‑ 99
Return Air And Door Installation 36k‑ 100
FreshAire System Set‑up and Operation‑ 101
Final Installation Checklist‑ 102
Return Air Grille/ Access Panel VRPXAP1‑ 103
R‑410A SEALED SYSTEM REPAIR‑ 104
Refrigerant Charging‑ 105
Undercharged Refrigerant Systems‑ 106
Overcharged Refrigerant Systems‑ 107
Restricted Refrigerant System‑ 108
Sealed System Method of Charging/ Repairs‑ 109
Compressor replacement‑ 110
Compressor Replacement ‑Special Procedure in Case of Compressor Burnout‑ 111
Replace The Reversing Valve‑ 112
Replace The Condensor Coil 12k/24k‑ 113
Replace The Condensor Coil 36k‑ 114
Replace The Evaporator Coil 12k/24k‑ 115
Replace The Evaporator Coil 36k‑ 116
Replace The Evaporator Coil Drain Pan‑ 117
EXTERNAL STATIC PRESSURE‑ 118
COMPONENT TESTING‑ 121

4 PB
TABLE OF CONTENTS
Electronic Expansion Valve (EEV)‑ 121
Reversing Valve Description And Operation‑ 122
Testing The Reversing Valve Solenoid Coil‑ 123
Checking The Reversing Valve‑ 124
Touch Test Chart : To Service Reversing Valves‑ 125
Compressor checks‑ 126
Check the Outdoor Fan 12k/24k‑ 127
Check the Outdoor Fan 36k‑ 128
Replace the Outdoor Fan 12k/24k‑ 129
Replace the Outdoor Fan Motor36k‑ 130
Check the Indoor Fan 12k/24k‑ 131
Check the Indoor Fan 36k‑ 132
Replace the Indoor Fan 12k/24k‑ 133
Replace the Indoor Fan 36k‑ 134
Check the Heating Elements‑ 135
Replace the Heating Elements‑ 136
Mcs Motor Control System Board Pin out‑ 137
Mcs Motor Control System Board Replacement‑ 138
Fmc Board Pin Out‑ 139
FMC Board Replacement‑ 140
Heater Board Pin Out‑ 141
Heater Board Replacement‑ 142
Thermistor Locations‑ 143
T8 (Return Air Sensor)‑ 143
T1 (Evaporator Coil In Sensor)‑ 144
T5 (Evaporator Coil Out Sensor)‑ 144
T9 (Discharge Air Sensor)‑ 145
T2 (Liquid Heat)‑ 146
T6 (Liquid Cool)‑ 146
T10 (Outdoor Ambient Air Sensor)‑ 147
T7 (Cond. Coil Sensor)‑ 148
T4 (Comp. Discharge).‑ 149
T3 (Comp. Suction).‑ 150
Thermistor Values‑ 151
Thermistor Part numbers‑ 152
Check High and Low Pressure Limit Switches‑ 153
Replace High Pressure Limit Switch‑ 154
TROUBLESHOOTING‑ 156
VRP Troubleshooting Map‑ 156
Required Tools‑ 157
Required Skills‑ 158
Troubleshooting by Rule Out Methodology‑ 158
Troubleshooting Flowchart‑ 159
Wall Controller Not “Smart”‑ 160
Verify Wall Controller Firmware‑ 161
Verify FMC Firmware‑ 162
Verify MCS Firmware‑ 163
Check For Power‑ 164
Diagnostic Code Check‑ 165
Diagnostic Code (Temperature Based)‑ 167
Diagnostic Codes (Voltage/ Amperage)‑ 168
Voltage/Amperage Related Diagnostics –Compressor Rule Out‑ 168

5 PB
Voltage/Amperage Related Diagnostics –ODF Rule Out‑ 169
Voltage/Amperage Related Diagnostics ‑ MCS Operational Lights‑ 169
Configuration/Communication Diagnostic Codes‑ 170
Configuration/Communication Diagnostic Codes 27 & 43‑ 170
Configuration/Communication Diagnostic Codes – 39 (IDF Comm Error)‑ 171
Diagnostic Codes‑ 172
UPDATING VRP FIRMWARE‑ 176
FMC Manual Update Process ‑ Remove SD Card from FMC load on a PC or Laptop‑ 176
FMC Update Process – Delete Current Files or Format SD Card‑ 177
FMC Update Process – Unzip Files to Blank or Formatted SD Card‑ 178
FMC Update Process – Verify Files on SD Card Drive‑ 179
FMC Update Process – Loading new Firmware‑ 179
FMC Update Process – Verify Load via VPXWC‑ 180
MCS Update Process – Remove SD Card from FMC load on a PC or Laptop‑ 181
MCS Update Process – Unzip Files to Blank or Formatted SD Card‑ 182
MCS Update Process – Verify Load via VPXWC‑ 183
Wall Controller Update Process – SD Card Preparation‑ 184
Verify Wall Controller Firmware‑ 185
VRP Remote Upgrade Procedure‑ 187
Retrieving VRP Data‑ 193
WIRING DIAGRAMS‑ 196
12‑24K BTU (208/230V 7.5&10.0 KW)‑ 196
12‑24K BTU (208/230V 2.5, 3.4, & 5.0 KW)‑ 197
12‑24K BTU (265V 2.5, 3.4, & 5.0 kW)‑ 198
12‑24K BTU (265V 7.5 & 10 kW)‑ 199
36K BTU ‑ 208/230V‑ 200
PARTS CATALOG‑ 201
12k Main Diagram‑ 201
12k Control Box Diagram‑ 204
24k Main Diagram‑ 206
24k Control Box Diagram‑ 209
36k Main Diagram‑ 211
36k Control Box Diagram‑ 214
Accessories‑ 216
ACCESSORIES‑ 217
CUSTOMER SATISFACTION and QUALITY ASSURANCE‑ 221
FRIEDRICH AUTHORIZED PARTS DEPOTS‑ 221
TABLE OF CONTENTS

6 PB
INTRODUCTION
The Friedrich VRP® is a variable capacity system that utilizes Precision Inverter® technology to provide optimal space conditions.
While each VRP unit has a nominal capacity of 12,000, 24,000, OR 36,000 Btus, every unit has the ability to adjust Btu output based
on the actual room load. This equates to:
• Greater in‑room dehumidification from longer compressor run time.
• Lower energy costs by consuming less power.
• Greater occupant comfort due to smaller swings in room temperature and humidity.
The VRP accomplishes this by constantly monitoring various system and environmental inputs to vary the output of the unit.
The ability to vary compressor and blower speeds and the use of reheat coil enables the VRP to provide optimal comfort. With up
to 20.0 SEER and 10.0 HSPF, the VRP provides a highly efficient solution. Further, the Precision Inverter technology allows the heat
pump to operate at ambient conditions as low as 0˚F reducing the use of strip heat. This results in significant savings in operational
costs.
An optional integrated FreshAireTM system delivers up to 70 CFM of conditioned fresh air into the space. The fresh air is filtered
through a MERV 8 filter per ASHRAE 62.1‑2013, and is then conditioned through the unit’s primary DX coils backed by a reheat coil
that augments the unit’s dehumidification capability. This integrated fresh air solution provides the ability to potentially downsize or
eliminate additional make up air and humidity control equipment.
Friedrich’s wall controller is the main interface between conditioned space and the unit. The controller has seven back‑lit segment
displays that indicate the system mode (cool, heat, fan only), fan speed (low, high or auto), setpoint (°F or °C) or alternatively room
temperature (°F or °C).
The controller has an integrated temperature and humidity sensor that sends room status to the main control unit (MCU) to
determine operating modes and speeds of various components.
The wall controller also contains a motion sensor that wakes the wall controller from a sleep mode when not in use. This energy
saving feature eliminates annoying glow from the controller and the need to turn on lights at night to operate it.
The unitary packaged design means easier installation or replacement. Because the VRP is a packaged unit, it is installed as a
completely assembled refrigeration system. Unlike VRF or chilled water systems that require on‑site wiring, piping and sealing of
individual components, VRP units are assembled, charged and run tested under strict quality control guidelines in Friedrich’s North
American factory. Additionally, there is no need to locate the cooling tower or condensing units on the ground or rooftops where
green spaces can exist instead.
In sum, The Friedrich VRP offers a significant value to all parties involved in the design and construction of a new building.
Because of the simpler and more straightforward nature of the packaged design, and the ability to potentially downsize or eliminate
additional make up air and humidity control equipment, the VRP reduces much of the headache and complexity facing the design
engineer. Because the VRP is easy to install, with no complicated floor‑to‑floor piping and wiring involved, the contractor can
be confident of a high‑quality installation and get on and off the job more quickly. And finally, the owner gets the efficiency and
performance of larger, more complex and costly equipment, with a lower overall installed cost; and he/she virtually eliminates the
potential safety and service issues associated with systems that rely on thousands of feet of refrigerant or water piping running
throughout the building, including occupied spaces.

7 PB
INTRODUCTION
VRP® Variable Speed System vs. Fixed-speed System
Low Ambient Heat Pump Performance: Variable speed technology enables VRP units to supply continuous hot air in heat pump mode even
at low outdoor ambient temperatures. This reduces stripheat usage resulting in exceptional savings with VRP units when compared with
Set P oin t T em pera ture
VRP
VRP - Precise Te mp era ture C ont rol
Fi xe d Sp ee d
Precise Temperature & Humidity Control: VRP units not only help keep the air at the preferred temperature, but can more
effectively remove moisture from the air. VRP units run longer cycles at lower pressures, helping to cool the air more evenly.
The combination of variable speed compressor & blower motor and reheat coil in VRP units provide optimal comfort to the
increasing the risk of mold and other airborne problems.
Figure 101(Cost Savings)
Figure 102 (Precision Temp Control) Figure 103 (Temp vs Humidity Control)

8 PB
INTRODUCTION
FreshAire™ Conditioned Fresh Air
Return Air
up to 70 CFM
Return Air
Filter
MERV 8 Outside
Air Filter
Supply Air
Outdoor Wall
Outdoor Air
Condenser
Exhaust Air
FreshAire is a dedicated fresh air system that brings in up to 70 CFM of outdoor air into the VRP® unit. The FreshAire system uses
one fan (up to 35 CFM) or two fans (up to 70 CFM) (depending on outdoor air CFM volume requirements) to bring in fresh outside air
into the the unit. The outdoor air passes through dedicated 6”x 6”x 1” MERV 8 filters that are easily replaceable from the front of the
unit.
This outdoor air is mixed with the return air inside the unit prior to the main evaporator coils, reheat coil and heater. Because of
the variable speed of both the compressor and evaporator fan, the VRP can increase or decrease the unit’s capacity to cool, heat or
dehumidify the total supply air. The system uses a proprietary algorithm to measure the dew point of the leaving air.
As the system nears the room setpoint, the system will throttle back both the compressor and the supply air volume in order to
maximize the dwell time on the indoor coil to maximize dehumidification.
(Single speed systems cycle on and off, providing less dehumidification capacity and run time as well as encounter condensate re‑
evaporation when cycled off.)
Figure 104 (FreshAire)

9 PB
INTRODUCTION
Reheat Coil - Augments VRP’s Dehumidification Capability
Temperature differences are not the only source of discomfort in a living space. Humidity also plays a big role — especially in
climates that tend to be both hot and humid. The air conditioning industry’s focus on humidity issues has elevated the importance of
dehumidification. Air conditioning units operate in environments with varying indoor humidity levels. Therefore, the system should
be able to adequately respond to the humidity changes by removing sufficient amounts of moisture in order to keep the conditioned
space within the comfort zone.
Anytime the compressor is running in air conditioning mode, it will also be pulling humidity out of the space. Fixed‑speed
systems shut off after the desired set temperature is reached (i.e. when the sensible load is met). VRP® units run much longer
at lower capacity and energy consumption than traditional systems. Humidity levels are reduced to more comfortable levels. The
dehumidification capability of VRP units is enhanced through the use of a reheat coil that provides superior flexibility in satisfying a
wide range of latent and sensible capacity demands. The reheat coil is placed behind the evaporator coil.
At relatively high ambient temperatures, both sensible and latent components of the system capacity are required to satisfy
increased cooling and dehumidification demands. The VRP wall controller and other sensors in the unit combine to continuously
monitor the space RH levels and when there is demand for extra dehumidification, the refrigerant exiting the condenser is rerouted
to the reheat coil located behind the evaporator on the way to the indoor air stream supplied to the conditioned space.
Thus, cooled and dehumidified air exiting the evaporator coil is reheated to desirable comfort levels for the space.

10 PB
INTRODUCTION
The information in this manual is intended for use by a qualified 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 unqualified persons can result in subjecting the unqualified 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
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
WARNING
NOTICE
CAUTION
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.

11 PB
Important Safety Information INTRODUCTION
WARNING
Please read this manual thoroughly prior to equipment
installation or operation. It is the installer’s responsibility
to properly apply and install the equipment. Installation
must be in conformance with the NFPA 70‑2008 National
Electric Code or current edition, International Mechanic
code 2009 or current edition and any other applicable local
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 R22 gauge sets. Failure to do so can
result in property damage, personal injury, or death.
WARNING
Electrical shock hazard.
Turn OFF electric power before service or installation.
Unit must be properly grounded.
Unit must have correct fuse or circuit breaker
protection. Unit’s supply circuit must have the correct
wire conductor size. All electrical connections and
wiring must be installed by a qualified electrician and
conform to the National Electrical Code and all local
codes which have jurisdiction. Failure to do so can
result in property
Your safety and the safety of others are 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 the 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:
ndicates 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 how to reduce the chance of injury,
and tell you what will happen if the instructions are not followed.
Indicates property damage can occur if instructions
are not followed.
WARNING
CAUTION
NOTICE
DO NOT OPERATE EQUIPMENT DURING ACTIVE STAGES OF CONSTRUCTION
To ensure proper operation, Friedrich requires that all equipment is not operated during active construction phases. This includes active stages of
completing framing, drywalling, spackling, sanding, painting, flooring, and moulding in the equipment’s designated conditioning space. The use of
this equipment during construction could result in premature failure of the components and/or system and is in violation of our standard warranty
guidelines. The operation of newly installed equipment during construction will accelerate the commencement and/or termination of the warranty
period.
CAUTION

12 PB
INTRODUCTION
Personal Injury Or Death Hazards
SAFETY
FIRST
WARNING AVERTISSEMENT ADVERTENCIA
Do not remove, disable or
bypass this unit’s safety
devices. Doing so may cause
injuries, ordeath.
Ne pas supprime, désactiverou
contournercette l´unité des
dispositifs de sécurité, faire vous
risqueriez de provoquerle feu, les
blessures ou la mort. o muerte.
No eliminar, desactivaro pasar
poralto los dispositivos de
seguridad de la unidad. Si lo hace
podría producirse fuego, lesiones
ELECTRICAL HAZARDS:
• Shutdown 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. Wait a few minutes after shutdown to allow the capacitors to
discharge the stored energy.
• 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 turned 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.
• Ensure the unit that the unit is properly grounded.
• 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 approved protective safety equipment such as: gloves, goggles, and
clothing. Ensure that properly insulated tools, and testing equipment are are used as well to protect against
equipment damage and reduce the risk of injury.
• Failure to follow proper safety procedures and these warnings can result in serious injury or possibly death.

13 PB
INTRODUCTION
Model and Serial Number Identification Guides
Figure 105 (Model Identification Guide)
V R P 2 4 K 2 5 S S A S
VRP Heat Pump
Series
-A
Engineering code
Reserved for future options
K = 230/208 V
Voltage
R = 265 V
Nominal Capacity (Btu/ Hr.)
36 = 20,000 - 36,000 Operating range
24 =12,000 - 28,000 Operating range
Heater watts
25 = 2.5 kW
34 = 3.4 kW
50 = 5.0 KW
75 = 7.5* kW
Reheat
S= Standard (without); R= Reheat
™
Outdoor Air/ Ventilation** S= Standard unit. No FreshAire
35 CFM for 12,000 BTU and 24,000 BTU Units
80 CFM for 36,000 BTU Units
F= Single OA Fan Powered FreshAire System
10 = 10.0 kW
15= 15.0 kW
0 = 0.0 kw
70 CFM for 12,000 BTU and 24,000 BTU Units
130 CFM for 36,000 BTU Units
Plenum and louver configuration
A= Only for 12000 Btu units
B= For 24000 Btu units (can also be used
for 12000 Btu units)
C= Only for 36000 Btu units
D= Dual OA Fans Powered FreshAire System
12 = 4,000 - 16,000 Operating range
VRP - 12 - K-50 - F - R - A - A - A
YEAR OF MANUFACTURE
17 = 2017 18 = 2018
19 = 2019 20 = 2020
21 = 2021 22 = 2022
MONTH OF MANUFACTURE
01 = JANUARY 07 = JULY
02 = FEBRUARY 08 = AUGUST
03 = MARCH 09 = SEPTEMBER
04 = APRIL 10 = OCTOBER
05 = MAY 11 = NOVEMBER
06 = JUNE 12 = DECEMBER
MANUFACTURING LOCATION
NUMERIC SEQUENCE
FIRST UNIT OF EACH MONTH = 00001
17 12 M 00001
Figure 106 (Serial Number Identification)

14 PB
SPECIFICATIONS
Cooling Performance
Figure 201 (Cooling Performance)
Model VRP12K / VRP12R VRP24K / VRP12R VRP36K
Cooling Performance Data (Cooling Standards: 95°F DB/75°F WB outdoor, 80°F DB/67°F WB indoor)
Voltage 230/208 265 230/208 265 230/208
Cooling Btu (Rated) 12,000 23,400 33,400
Cooling Btu (Min. – Max) 4,000 – 16,000 12,000 – 28,000 20,000 ‑ 36,000
Outdoor Operating Range (°F) 55 – 115 55 – 115 55 ‑ 115
Power (W) 923 2138 2990
SEER 20.0 17.5 15.5
EER 13.0 11.0 11.0
Sensible Heat Ratio 0.71 0.7 0.76
Cooling Amps 4.3 10.0 14.2
Heat Pump Performance Data
Heating Btu (Rated @ 47° F) 11,500 21,000 28,500
Heating Btu (@ 17° F) 7,100 13,000 18,300
Heating Btu (Min. – Max.) 4,000 – 14,000 12,000 – 26,000 16,000 ‑ 30,000
Heat Pump Outdoor Operating
Range (°F)* 0 – 70 0 – 70 0 ‑ 70
COP (Rated @ 47° F) 3.4 3.1 3.25
COP (@ 17° F) 2.2 2.4 2.29
HSPF 10.0 10.0 8.6
Heating Power (W) 991 1954 2570
Heating Amps 4.8 4.1 9.1 7.8 12.26

15 PB
SPECIFICATIONS
12k Extended Cooling Performance Data
Model:
VRP12K
Indoor Temperature
70˚ FDB 75˚ FDB 80˚FDB 85˚ FDB 90 ˚ FDB
60˚ F WB 63˚ F WB 67˚F WB 71˚ F WB 73˚ F WB
Outdoor Temperature Dry (°F)
(˚F)
DB
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
65˚ 11680 615 2.8 12755 615 2.8 13825 615 2.8 14900 615 2.8 15975 620 2.8
70˚ 11460 665 3.0 12510 665 3.0 13555 675 3.0 14600 675 3.0 15650 675 3.0
75˚ 11240 720 3.2 12260 720 3.2 13280 725 3.2 14300 725 3.2 15320 725 3.2
80˚ 10990 765 3.4 11980 775 3.5 12970 775 3.5 13965 775 3.5 14955 780 3.5
85˚ 10735 815 3.6 11700 820 3.7 12660 825 3.7 13625 825 3.7 14585 830 3.7
90˚ 10460 860 3.9 11400 870 3.9 12330 875 3.9 13270 880 3.9 14200 880 3.9
95˚10185 910 4.1 11090 920 4.1 12000 925 4.1 12910 930 4.2 13815 935 4.2
100 ˚ 9875 960 4.3 10760 970 4.3 11645 975 4.4 12530 985 4.4 13415 990 4.4
105 ˚ 9565 1010 4.5 10425 1020 4.6 11285 1030 4.6 12145 1040 4.7 13005 1045 4.7
110 ˚ 9265 1060 4.7 10100 1075 4.8 10940 1085 4.9 11775 1100 4.9 12610 1110 5.0
115 ˚ 8965 1120 5.0 9775 1130 5.1 10590 1145 5.1 11400 1155 5.2 12215 1170 5.2
Model:
VRP12R
Indoor Temperature
70˚ FDB 75˚ FDB 80˚FDB 85˚ FDB 90 ˚ FDB
60˚ F WB 63˚ F WB 67˚F WB 71˚ F WB 73˚ F WB
Outdoor Temperature Dry (°F)
(˚F)
DB
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
65˚ 11680 615 2.4 12755 615 2.4 13825 615 2.4 14900 615 2.4 15975 620 2.4
70˚ 11460 665 2.6 12510 665 2.6 13555 675 2.6 14600 675 2.6 15650 675 2.6
75˚ 11240 720 2.8 12260 720 2.8 13280 725 2.8 14300 725 2.8 15320 725 2.8
80˚ 10990 765 3.0 11980 775 3.0 12970 775 3.0 13965 775 3.0 14955 780 3.0
85˚ 10735 815 3.2 11700 820 3.2 12660 825 3.2 13625 825 3.2 14585 830 3.2
90˚ 10460 860 3.3 11400 870 3.4 12330 875 3.4 13270 880 3.4 14200 880 3.4
95˚10185 910 3.5 11090 920 3.6 12000 925 3.6 12910 930 3.6 13815 935 3.6
100 ˚ 9875 960 3.7 10760 970 3.8 11645 975 3.8 12530 985 3.8 13415 990 3.8
105 ˚ 9565 1010 3.9 10425 1020 4.0 11285 1030 4.0 12145 1040 4.0 13005 1045 4.1
110 ˚ 9265 1060 4.1 10100 1075 4.2 10940 1085 4.2 11775 1100 4.3 12610 1110 4.3
115 ˚ 8965 1120 4.4 9775 1130 4.4 10590 1145 4.5 11400 1155 4.5 12215 1170 4.5
Cooling Standards: 95°F DB/ 75°F WB outdoor, 80°F DB/ 67°F WB indoor
Figure 202 (12k Extended Cooling Performance Data)

16 PB
SPECIFICATIONS
24k Extended Cooling Performance Data
Model:
VRP24K
Indoor Temperature
70˚ FDB 75˚ FDB 80˚FDB 85 ˚ FDB 90˚ FDB
60˚ F WB 63˚ F WB 67˚F WB 71˚ F WB 73˚ F WB
Outdoor Temperature Dry (°F)
(˚F)
DB
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
65˚ 22875 1420 6.4 24980 1420 6.4 27075 1420 6.4 29180 1420 6.4 31285 1430 6.4
70˚ 22440 1535 6.8 24500 1535 6.8 26545 1560 6.8 28590 1560 6.8 30650 1560 6.8
75˚ 22010 1665 7.3 24010 1665 7.3 26005 1675 7.3 28005 1675 7.3 30000 1675 7.3
80˚ 21520 1765 7.7 23460 1790 7.9 25400 1790 7.9 27350 1790 7.9 29285 1800 7.9
85˚ 21025 1880 8.2 22910 1895 8.4 24795 1905 8.4 26680 1905 8.4 28560 1915 8.4
90˚ 20485 1985 8.8 22325 2010 8.8 24145 2020 8.8 25985 2030 8.8 27810 2030 8.8
95˚19945 2100 9.3 21720 2125 9.3 23500 2135 9.3 25280 2150 9.5 27055 2160 9.5
100 ˚ 19340 2215 9.8 21070 2240 9.8 22805 2250 10 24540 2275 10 26270 2285 10
105 ˚ 18730 2330 10.2 20415 2355 10.4 22100 2380 10.4 23785 2400 10.7 25470 2415 10.7
110 ˚ 18145 2450 10.7 19780 2480 10.9 21425 2505 11.1 23060 2540 11.1 24695 2565 11.3
115 ˚ 17555 2585 11.3 19145 2610 11.6 20740 2645 11.6 22325 2665 11.8 23920 2700 11.8
Model:
VRP24R
Indoor Temperature
70˚ FDB 75˚ FDB 80˚FDB 85 ˚ FDB 90˚ FDB
60˚ F WB 63˚ F WB 67˚F WB 71˚ F WB 73˚ F WB
Outdoor Temperature Dry (°F)
(˚F)
DB
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
65˚ 22875 1420 5.5 24980 1420 5.5 27075 1420 5.5 29180 1420 5.5 31285 1430 5.5
70˚ 22440 1535 5.9 24500 1535 5.9 26545 1560 5.9 28590 1560 5.9 30650 1560 5.9
75˚ 22010 1665 6.3 24010 1665 6.3 26005 1675 6.3 28005 1675 6.3 30000 1675 6.3
80˚ 21520 1765 6.7 23460 1790 6.9 25400 1790 6.9 27350 1790 6.9 29285 1800 6.9
85˚ 21025 1880 7.1 22910 1895 7.3 24795 1905 7.3 26680 1905 7.3 28560 1915 7.3
90˚ 20485 1985 7.7 22325 2010 7.7 24145 2020 7.7 25985 2030 7.7 27810 2030 7.7
95˚19945 2100 8.1 21720 2125 8.1 23500 2135 8.1 25280 2150 8.3 27055 2160 8.3
100 ˚ 19340 2215 8.5 21070 2240 8.5 22805 2250 8.7 24540 2275 8.7 26270 2285 8.7
105 ˚ 18730 2330 8.9 20415 2355 9.1 22100 2380 9.1 23785 2400 9.3 25470 2415 9.3
110 ˚ 18145 2450 9.3 19780 2480 9.5 21425 2505 9.7 23060 2540 9.7 24695 2565 9.9
115 ˚ 17555 2585 9.9 19145 2610 10.1 20740 2645 10.1 22325 2665 10.3 23920 2700 10.3
Cooling Standards: 95°F DB/ 75°F WB outdoor, 80°F DB/ 67°F WB indoor
Figure 203 (24k Extended Cooling Performance Data)

17 PB
SPECIFICATIONS
12 and 24k Extended Heating Performance Data
Model:
VRP12K
Indoor Temperature Dry Bulb (F)
60˚ 70˚ 80 ˚
Outdoor Temperature Dry Bulb (F)
(˚F)
DB
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
17˚ 7551 866 3.5 7100 946 3.8 6609 1014 4.1
25˚ 8810 877 3.6 8273 958 4 7688 1031 4.3
35˚ 10384 890 3.8 9740 974 4.2 9036 1051 4.5
47˚12272 906 4 11500 992 4.4 10654 1077 4.8
55˚ 13531 916 4.2 12673 1004 4.6 11733 1093 5
62˚ 14633 925 4.3 13700 1015 4.7 12677 1108 5.1
Model:
VRP12R
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Outdoor Temperature Dry Bulb (F)
(˚F)
DB
17˚ 7551 866 3.0 7100 946 3.3 6609 1014 3.5
25˚ 8810 877 3.1 8273 958 3.4 7688 1031 3.7
35˚ 10384 890 3.3 9740 974 3.6 9036 1051 3.9
47˚12272 906 3.4 11500 992 3.8 10654 1077 4.1
55˚ 13531 916 3.6 12673 1004 4.0 11733 1093 4.3
62˚ 14633 925 3.7 13700 1015 4.1 12677 1108 4.4
Model:
VRP24K
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Outdoor Temperature Dry Bulb (F)
(˚F)
DB
17˚ 15208 1399 6.4 14299 1528 7 13310 1638 7.5
25˚ 17407 1473 6.7 16347 1610 7.4 15190 1732 7.9
35˚ 20156 1565 7.2 18907 1712 7.8 17541 1850 8.5
47˚ 23455 1675 7.7 21979 1835 8.4 20362 1991 9.1
55˚ 25654 1749 8 24027 1917 8.8 22243 2086 9.5
62˚ 27579 1813 8.3 25819 1989 9.1 23888 2168 9.9
Model:
VRP24R
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Capacity
(Btu/h)
Input
(W)
Amps
(A)
Outdoor Temperature Dry Bulb (F)
(˚F)
DB
17˚ 15208 1399 5.5 14299 1528 6.0 13310 1638 6.5
25˚ 17407 1473 5.8 16347 1610 6.4 15190 1732 6.8
35˚ 20156 1565 6.2 18907 1712 6.7 17541 1850 7.3
47˚23455 1675 6.6 21979 1835 7.2 20362 1991 7.8
55˚ 25654 1749 6.9 24027 1917 7.6 22243 2086 8.2
62˚ 27579 1813 7.2 25819 1989 7.8 23888 2168 8.5
Heating Standards: 47°F DB/ 43°F WB outdoor, 70°F DB/ 60°F WB indoor
Figure 204 (12 and 24k Extended Heating Performance Data)

18 PB
SPECIFICATIONS
Air Flow Data -12k and 24k
Figure 205 (12K and 24K Air Flow Data)
Model VRP12K / VRP12R VRP24K / VRP24R
Air Flow Data
Indoor CFM Low High Low High
.10" ESP* 488 559 472 850
.20" ESP 393 466 432 778
.30" ESP 292 383 391 703
.40" ESP 200 304 348 626
.50" ESP 104 234 308 555
* Rated at 0.10 " ESP, High and includes 0.08 " ESP for factory installed 1 "
Condenser External Static Pressure
VRP Model Design Maximum
CFM
Condenser CFM & External Static Pressure
VRP®is designed to mount through an exterior wall through a plenum (VRPXWP****) with an external louver (VRPXAL*).
ESP ( "WC) ESP ( " WC)
VRP 12000 Btu 700 0.03 0.1
VRP 24000 Btu 1150 0.017 0.11
Indoor CFM & External Static Pressure
0
0.1
0.2
0.3
0.4
0.5
0.6
0
CAUTION: If the Friedrich designed plenum and louver combinations are not used, the louver/duct design must be evaluated to
insure the total pressure drop does not exceed the maximum allowable limits.
100 200 300 400 500 600
ESP
(In. W.C )
Indoor CFM
Low High
RIndoor F an CFM v - s. ESP - VRP12K/VRP12
0
0.1
0.2
0.3
0.4
0.5
0
0.6
200 400 600 800 1000
ESP
(In. W.C )
Indoor CFM
Low High
Indoor F an CFM v - s. ESP - VRP24K/VRP24R

19 PB
SPECIFICATIONS
Air Flow Data -36k
Model VRP36K
Air Flow Data
Indoor CFM Low High
.15” ESP * 1015 1200
.20” ESP 875 1160
.30” ESP - Max @ Low Speed 750 1080
.40” ESP 565 970
.50” ESP - Max @ High Speed 440 835
* Rated at 0.15 " ESP, High and includes 0.08 ” ESP for factory installed 1 "
Condenser External Static Pressure
VRP Model Design Maximum
CFM
Condenser CFM & External Static Pressure
VRP® is designed to mount through an exterior wall through a plenum (VRPXWP****) with an external louver (VRPXAL*).
ESP ( "WC) ESP ( "WC)
VRP 36000 Btu 2030 0.03 0.20
Indoor CFM & External Static Pressure
CAUTION: If the Friedrich designed plenum and louver combinations are not used, the louver/duct design must be evaluated to
insure the total pressure drop does not exceed the maximum allowable limits.
Figure 206 (36K Air Flow Data)

20 PB
SPECIFICATIONS
Electrical Data
VRP
Model Voltage Heater Watts Heating Btu Heater Amps ID Blower Amps OD Blower Amps Heating Amps MCA MOP / MOCP
VRP12K 230 2500 8530 10.9 0.34 0.57 11.2 14.0 15
208 2030 6980 9.8 0.38 0.63 10.2
230 3400 11601 14.8 0.34 0.57 15.1 18.9 20
208 2780 9480 13.4 0.38 0.63 13.8
230 5000 17060 21.7 0.34 0.57 22 27.5 30
208 4100 13980 19.7 0.38 0.63 20.1
VRP12R 265 2500 8530 9.4 0.2 0.5 9.8 12.3 15
3400 11601 12.8 0.2 0.5 13.2 16.5 20
5000 17060 18.9 0.2 0.5 19.3 24.1 25
VRP24K 230 2500 8530 10.8 0.77 1.06 11.6 14.5 15
208 2030 6980 9.8 0.85 1.17 10.7
230 3400 11600 14.8 0.77 1.06 15.6 19.5 20
208 2780 9480 13.4 0.85 1.17 14.3
230 5000 17050 21.8 0.77 1.06 22.6 28.3 30
208 4100 13980 19.7 0.85 1.17 20.6
230 7500 25590 32.6 0.77 1.06 33.4 41.8 45
208 6130 20900 29.5 0.85 1.17 30.4
230 10000 34120 43.5 0.77 1.06 44.3 55.4 60
208 8180 27890 39.3 0.85 1.17 40.2
VRP24R 265 2500 8530 9.4 0.7 1.0 10.8 13.5 15
3400 11601 12.8 0.7 1.0 14.2 17.8 20
5000 17060 18.9 0.7 1.0 20.3 25.4 25
7500 25590 28.3 0.7 1.0 29.7 37.1 40
10000 34120 37.7 0.7 1.0 39.1 48.9 60
VRP36K 230 0 0 0 / / / 18.2 30
208 0 0 0 / / /
230 10000 34120 43.5 ///55.8 60
208 8180 27890 39.3 ///
230 15000 51150 65.3 ///83.0 90 (60
+ 30)
208 12280 41870 59.0 ///
MCA = Minimum Circuit Ampacity
MOP / MOCP = Maximum Overcurrent Protection / Breaker Size
Minimum Circuit Amps (MCA) and MOCP values in the above table are calculated in accordance with The NEC. Article 440
Figure 207 (Electrical Data)