Friedrich VRP Series User manual

Installation & Operation Manual
VRP IOM 92301001_02
PRECISION
US
C
12000 Btu
24000 Btu
Innovative | Intelligent | Inverter
Variable Refrigerant
Packaged Heat Pump
For Commercial and Residen-
tial Applications
One or more of the following
patents may apply:
10408504
10436457
10488083
Additional patents pending

2
Warnings__________________________________________________________________________________ 3
General
Specications ______________________________________________________________________________ 4
Dimensions ________________________________________________________________________________ 5
Electrical Data _____________________________________________________________________________ 6
Air Flow Data ______________________________________________________________________________ 7
Installation
Minimum Clearances ________________________________________________________________________ 8
Installation Orientations______________________________________________________________________ 9
Rough Opening Dimensions__________________________________________________________________ 10
Preliminary Plumbing ______________________________________________________________________ 12
Wall Plenum Installation ____________________________________________________________________ 13
Louver Installation _________________________________________________________________________ 17
Unit Installation ___________________________________________________________________________ 19
Drain Installation __________________________________________________________________________ 22
Ductwork Installation _______________________________________________________________________ 23
Wall Controller Installation __________________________________________________________________ 24
Electrical Connection _______________________________________________________________________ 26
Return Air Door Installation__________________________________________________________________ 27
FreshAire™ System Set-Up and Operation ______________________________________________________ 28
Reference
Electrical Wiring Diagrams __________________________________________________________________ 29
Basepan Heat _____________________________________________________________________________ 33
Final Installation Checklist___________________________________________________________________ 34
Service and Warranty _______________________________________________________________________ 35
Accessories_______________________________________________________________________________ 36
Diagnostic Error Codes _____________________________________________________________________ 38
VRP Limited Warranty ______________________________________________________________________ 39
Table of Contents

3
Congratulations!
The Friedrich VRP has been carefully engineered and manufactured to provide many years of dependable, efcient operation
while maintaining a comfortable temperature and humidity level. Many extra features have been built into the unit to ensure
quiet operation, optimal circulation of cool, dry air, and the most economic operation.
Please carefully read and follow the installation insrtructions and safety warnings detailed in this manual. All applicable na-
tional and local mechanical and electrical codes should be followed and take precedence over any Friedrich requirements or
reccomenedations regarding installation applications detailed in this manual.
WARNING
Refrigeration system under high pressure. Do not punc-
ture, heat, expose to ame or incinerate. Only certied
refrigeration technicians should service this equipment.
R410A systems operate at higher pressures than R22
equipment. Appropriate safe service and handling prac-
tices 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
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
or national codes.
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:
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 how to reduce the chance
of injury, and tell you what will happen if the instructions
are not followed.
Indications property damage can occur if instructions
are not followed.
WARNING
CAUTION
NOTICE
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 pro-
tection. Unit’s supply circuit must have the correct
wire conductor size. All electrical connections and
wiring must be installed by a qualied electrician 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.

4
General Specications
Nomenclature
V R P 2 4 K 2 5 S S A S -A
Series
VRP Heat Pump
Engineering Code
S= Standard
L= Basepan Heat
Nominal Capacity (Btu /Hr.)
12 = 4000 - 16000 Operating Range
24 =12,000 - 28000 Operating Range
Plenum and Louver Configuration
A= Compact (VRP12 Only)
B= Standard
Voltage
K = 230/208 V
R = 265 V
Heater Watts
25 = 2.5 kW
34 = 3.4 kW
50 = 5.0 kW
75 = 7.5 kW
10 = 10.0 kW
ALL VRP MODELS
VRP24 ONLY
S= Standard
R= Reheat
Outdoor Air/ Ventilation
S= Standard No FreshAire™
F= Single OA Fan 35 CFM
D= Dual OA Fans 70 CFM
Model VRP12K / VRP12R VRP24K / VRP24R
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
Cooling Btu (Rated) 12000 23525
Cooling Btu (Min. - Max) 5400 - 16000 14500 - 28000
Outdoor Operating Range (°F ) 55 - 115 55 - 115
Power (W) 923 2138
SEER 20.0 17.5
EER 13.0 11.0
Sensible Heat Ratio 0.7 0.7
Cooling Amps 4.3 10.0
Heat Pump Performance Data
Voltage 230/208 265 230/208 265
Heating Btu ( Rated @ 47° F ) 11500 21000
Heating Btu ( @ 17° F ) 7700 13000
Heating Btu (Min. - Max.) 4000 - 14000 12000 - 26000
Heat Pump Outdoor Operating Range (°F ) 0 - 70 0 - 70
HSPF 10.0 10.0
Heating Power (W) 991 1954
Heat Pump Amps 4.8 4.1 9.1 7.8

5
Dimensions
Model VRP12K VRP12R VRP24K VRP24R
Dimensions (W x D x H) 26 1/8" x 25 1/8" x 52" 26 1/8" x 25 1/8" x 62"
Shipping Dimensions (W x D x H) 28 1/8" x 27 3/8" x 54 1/2" 28 1/8" x 27 3/8" x 64 1/2"
Net Weight (lbs.) 215 215 255 255
Shipping Weight (lbs.) 276 276 316 316
R410A Charge (oz.) 49.8 49.8 68.3 68.3
DUCT
FLANGE
VRP Dimensional Data 24K
VRP Dimensional Data 12K

6
Electrical Data
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
Electrical Requirements
Wire Size Use ONLY wire size recommended for
single outlet branch circuit.
Fuse/Circuit
Breaker
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 responsibility 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.
Electrical Rating Table
NOTE: Use copper conductors ONLY. Wire sizes are per NEC.
Recommended Branch Circuit Sizes*
Nameplate Maximum Circuit Breaker Size AWG Wiring Size**
15A 14
20A 12
30A 10
AWG - American Wire Gauge
* Single circuit from main box.
** Based on 100’ or less of copper, single insulated conductor at 60˚ C
NOTE: All eld wiring must comply with NEC and local codes. It is the installer’s responsibility to ensure that the electrical codes are
met.
VRP Model Voltage
Electric
Heater
Watts
Electric
Heating
Btu
ID Blower
Amps
OD Blower
Amps
Total
Electric
Heating
Amps
MCA MOP / MOCP
VRP12K
230 2500 8530 0.34 0.42 11.2 14.0 15
208 2030 6980 0.38 0.42 10.2
230 3400 11601 0.34 0.42 15.1 18.9 20
208 2780 9480 0.38 0.42 13.8
230 5000 17060 0.34 0.42 22 27.5 30
208 4100 13980 0.38 0.42 20.1
VRP12R 265
2500 8530 0.2 0.40 9.8 12.3 15
3400 11601 0.2 0.40 13.2 16.5 20
5000 17060 0.2 0.40 19.3 24.1 25
VRP24K
230 2500 8530 0.77 0.60 11.6 14.5 15
208 2030 6980 0.85 0.60 10.7
230 3400 11600 0.77 0.60 15.6 19.5 20
208 2780 9480 0.85 0.60 14.3
230 5000 17050 0.77 0.60 22.6 28.3 30
208 4100 13980 0.85 0.60 20.6
230 7500 25590 0.77 0.60 33.4 41.8 45
208 6130 20900 0.85 0.60 30.4
230 10000 34120 0.77 0.60 44.3 55.4 60
208 8180 27890 0.85 0.60 40.2
VRP24R 265
2500 8530 0.7 0.60 10.8 13.5 15
3400 11601 0.7 0.60 14.2 17.8 20
5000 17060 0.7 0.60 20.3 25.4 25
7500 25590 0.7 0.60 29.7 37.1 40
10000 34120 0.7 0.60 39.1 48.9 60

7
Air Flow Data
Model VRP12K / VRP12R VRP24K / VRP24R
Air Flow Data
Indoor CFM Low High Low High
0.1” ESP * 488 559 472 850
0.2” ESP 393 466 432 778
0.3” ESP 292 383 391 703
0.4” ESP 200 304 348 626
0.5” ESP 104 234 308 555
* Rated at 0.1" ESP high speed and includes factory provided lter.
Condenser CFM & External Static Pressure
VRP is designed to install through an exterior wall with a plenum (VRPXWP*-8, VRPXWP*-14) and a Friedrich external louver .
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.
Condenser External Static Pressure
VRP Model Design Max
CFM ESP ("WC) ESP (“WC)
VRP 12000 Btu 700 0.03 0.1
VRP 24000 Btu 1150 0.02 0.11
Indoor CFM & External Static Pressure
0
0.1
0.2
0.3
0.4
0.5
0.6
0100 200 300 400 500 600
ESP
( In. W.C )
Indoor CFM
Indoor Fan CFM Vs. ESP -VPH12K / VPH12R
Low High
Indoor Fan CFM vs. ESP - VRP12K/VRP12R
0
0.1
0.2
0.3
0.4
0.5
0.6
0200 400 600 800 1000
ESP
( In. W.C )
Indoor CFM
Indoor Fan CFM Vs. ESP -VPH24K / VPH24R
Low High
Indoor Fan CFM vs. ESP - VRP24K/VRP24R

8
VRP®Required Minimum Clearances
6"
60"60"
60"
60"
60"
60"
60"
60"
60"
6"
6"
12"
60"
60"
64"
160 “
32 “
Figure A Figure B Figure C Figure D
Building Exterior Unit Opening Requirements
VRP units must be installed on an outside wall. Conned spaces and/or covered areas should be avoided. Units must
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
another, maintain a minimum of 60” between units or pairs of units (Figure B). If more than two units are sharing a oor
with adjacent, outset units, a minimum distance of 64” must be kept between units (Figure C). Also, a vertical clearance of
60” must be maintained (Figure A) between units. Units installed on the bottom oor must be mounted at least 6” off of the
ground.
Grill Clearance Requirements
Where obstructions are present use the
following guidelines for proper spacing from
the VRP exterior louvered grill. Friedrich
reccomends 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.
BUILDING
24"
VVV
POLE
SHRUB
FENCE
MAJOROBSTRUCTIONS
OUTDOOR
CONDENSING
UNIT
The the example pictured above is for reference only and does not represent all possible installations. Please contact Friedrich
Air Conditioning for information regarding effects of other installation arrangements.

9
Installation Orientations
OUTSIDE GRILL
OUTSIDE WALL
Front Installation-Top View
30Access Door Cut Out = ”
32” ( Min. Required Inside Closet Dimension )
6Min. ” Required
3Min. ”
3Min. ”
31 1/8” ( Min. Required Inside Closet Dimension )
26 1/8”
25 1/8”
OUTSIDE GRILL
OUTSIDE WALL
Left Installation-Top View
26 1/8”
25 1/8”
33 1/2” ( Min. Required Inside Closet Dimension )
30Access Door Cut Out = ”
3Min. ”
33 1/8” ( Min. Required Inside Closet Dimension )
Min. 4 1/2”
Min. 8”
(Required)
OUTSIDE GRILL
OUTSIDE WALL
Right Installation-Top View
26 1/8”
25 1/8”
33 1/8” ( Min. Required Inside Closet Dimension )
33 1/2” ( Min. Required Inside Closet Dimension )
Min. 4 1/2”
3Min. ”
Min. 8”(Required)
30Access Door Cut Out = ”

10
Exterior Wall Opening Dimensions
Exterior Wall Rough Opening Dimensions
Unit Width Heigth
Compact
(VRPXWPA-*)
28 1/8" 32 1/4"
Standard
(VRPXWPB-*)
28 1/8" 42 1/4"
Compact (A) conguration is for 12000 BTU units
only. Standard (B) conguration is for 24000 BTU
and 12000 BTU units. A compact 12000 BTU unit
can be converted to standard dimensions with a
factory provided adapter. Ensure that the correct
wall plenum is selected based on unit congura-
tion.
NOTE: The distance between the rough opening and
the nished oor/platform must be 3”.

11
Interior (Closet) Wall Opening Dimensions
Return Air Access Door Wall Cut-Out
30”
69¾”
NOTE: To maintain ease of removal and serviceability, if the unit is installed on a platform ensure that the total height of
the unit from the oor does not exceed the height of the interior rough opening.

12
Preliminary Plumbing
Standard (Front Install)
The image to the right shows the installation
closet for the standard (Front Install) conguration
(where the wall plenum is opposite the service
access door).
A drainage system is required, and should provide
a “P-trap” to prevent undesirable waste gas
from entering into the residential area. This is
represented by a vertical standpipe in the image
shown (Detail A), but other solutions are possible
and are at the discretion of the building designer
and contractor.
The near wall has been trimmed away at the door
centerline to permit full view of the installation.
Detail A

13
Wall Plenum Installation
Parts included in Plenum kit:
Outside Plenum (Part A) Divider (Part C)
Inside Plenum (Part B) Bafe (Part D)
Field Supplied Parts:
Sealant, attachment screws, and ashing
are eld supplied. Silicone sealant is recommended.
VRPXWPA-8, VRPXWPB-8 adjust for walls up to 4”- 8” thick.
VRPXWPA-14, VRPXWPB-14 adjust for walls up to 8” - 14” thick
All installations are similar.
Flashing
1”-3” Screws to
attach the plenum
assembly to the wall
studs
Sealant
Shim

14
Wall Plenum Installation
Note: The wall plenum is not designed to carry any structural load. A load bearing header must be built above
the rough opening.
1) Prepare the rough opening. The rough opening should be lined with metal or wood. The plenum will warp if
sealed against concrete or brick.
2) Dry t the outside plenum half into the rough opening and check the t and level.
3) Remove the outside plenum half, ash the rough opening to ensure proper t and level.
4) Pre-installing the exterior louver (VRPXALA/B) as shown above is optional (See Page 17).
5) Apply sealant to the outside plenuem half and insert into the rough opening to ensure a water-tight seal.
Ensure that the oustide plenum half is securely attached to the framed opening.
6) Place the plenum divider (Part C) on the appropraite divider mounting tabs located on the inner perimeter of
the outside plenum half based on unit size (Compact/Standard).
Step 1 - Outside Wall Plenum Half

15
Wall Plenum Installation
Step 2 - Inside Wall Plenum Half
Caulk all 8
Flange Corners
and Unused
Holes
Detail A
1) Apply sealant to all 4 ange corners and unused holes. See Detail A.
2) Place the bafe (Part D) on the approprate bafe mounting tabs located on the inner perimeter of the inside
plenum half based on unit size (Compact/Standard).
3) Flash the inside of the rough opening to ensure the proper t and level.
4) Insert inside plenum half (Part B) into Outside Plenum Half (Part A). Ensure that Part A does not back out of
the rough opening.
5) Remove the inside plenum half.
6) Apply sealant to the outside plenuem half and insert into the rough opening to ensure a water-tight seal.

16
Wall Plenum Installation
B
Detail B
Step 3 - Inside Wall Plenum (cont.)
Note: Do not place any screws, fasteners, or penetrating holes through the top or bottom of the plenum
assembly.
1) Drill pilot holes on the interior of the inside plenum half (Part B) as show in Detail B. Pilot holes should be
located approxiamtely 4” from the top and bottom of the inside plenum half, on both the left and right sides.
2) Install fasteners through each pilot hole. Fastener must pass through both Part A and Part B. If the inside
and outside plenum halves do not overlap at fastening point, be certain to drill extra holes where needed to
secure both Part A and Part B to the rough opening.

17
Louver Installation
Installation of the louver PRIOR to Wall Plenum Installation
Hold the louver up to the Outside Wall Plenum Part A and line up the louver top with the very top edge of the 3/4” flange. Line up
the Wall Plenum holes with the threaded holes in the louver, install and tighten the 8 screws.
Attach louver with 8
screws provided
Louver
SIDE
Wall Plenum
NOTE: Louvers & Drip Ledge orientation is down Optional Pre-assembled Outside
Element (Grill and Plenum)
Installation of the louver PRIOR to Wall Plenum Installation
1) Hold the louver up to the outside plenum half (Part A) and line up the louver top with the very top edge of the
¾” ange.
2) Line up the wall plenum holes with the threaded holes in the louver and securely tighten fasteners.
Installation of the louver AFTER the installation of wall plenum on
elevated oors
From the interior of the utility closet:
1) Tie a rope or tether to the architectural louver and the divider in
the wall plenum to prevent it from falling if dropped.
3) Turn the louver sideways and push the louver out below the
divider in the wall plenum.
4) Pull the louver back against the wall plenum and align the holes.
5) Insert and tighten all eight provided fasteners. When the louver
is secured, remove the safety tether.

18
Final Wall Plenum and Architectural Louver Installation
Plenum Divider Extension Plate (Bafe) Plenum Divider Extension Plate Installed
into Full Plenum Assembly
Ensure that the weather strip is undamaged and provides a continuous
seal around the inner perimeter of the plenum.
Apply silicone grease or other non-petroleum-based lubricants to the weather strip to enhance the sealing
capability of the weather strip and ease installation of the air conditioner chassis.
1) Install the plenum adjuster plate. Ensure the exterior edge is seated against the inside of the
archetiectural louver.
2) Secure the plenum divider extension plate to the archetiectural louver using the two provided screws.
3) Use tape and sealant to seal any gaps.

19
Unit Installation
Unit Placement Prior to Installation
(Front-Install Conguration)
All louver, plenum, rough plumbing, and rough wiring steps must be complete prior to nal installation of the air
conditioning chassis.

20
Final Unit Installation Overview
Unit Final Placement - Front Install
1) Ensure that power if off at the junction box feeding power to the air conditioner until all process steps are
completed.
2) Move the unit from the shipping base and onto the installation site.
3) Insert the unit’s rear extension into the wall plenum. There should be approximately 2” of penetration of the
unit into the wall plenum, resulting in a complete seal all around.
4) Identify the appropriate drain port to use and complete plumbing (See Page 22).
5) Attach the ductwork to the unit at the supply-air outlet and ensure the seal is air tight (See Page 23).
6) Wire and connect the wall controller (See Pages 24-27).
7) Connect the main power (See Page 28).