Friedrich VRP36K User manual

Installation & Operation Manual
VRP36 IOM / 92303010_00
For Commercial and Residen-
tial Applications
One or more of the following
patents may apply:
10408504
10436457
10488083
Additional patents pending
PRECISION
US
C
36000 BTU
Innovative | Intelligent | Inverter
Variable Refrigerant
Packaged Heat Pump - 36000 BTU

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
Wall Plenum Installation ____________________________________________________________________ 12
Louver Installation _________________________________________________________________________ 16
Unit Installation ___________________________________________________________________________ 18
Drain Installation __________________________________________________________________________ 21
Ductwork Installation _______________________________________________________________________ 22
Wall Controller Installation __________________________________________________________________ 23
Electrical Connection _______________________________________________________________________ 25
Return Air Door Installation__________________________________________________________________ 26
FreshAire™ System Set-Up and Operation ______________________________________________________ 27
Reference
Electrical Wiring Diagrams __________________________________________________________________ 28
Final Installation Checklist___________________________________________________________________ 29
Service and Warranty _______________________________________________________________________ 30
Accessories_______________________________________________________________________________ 31
Diagnostic Error Codes _____________________________________________________________________ 33
VRP Limited Warranty ______________________________________________________________________ 34
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 instructions and safety warnings detailed in this manual. All applicable national
and local mechanical and electrical codes should be followed and take precedence over any Friedrich requirements or recom-
mendations 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 3 6 K 0 0 S S C S -A
Series
VRP Heat Pump
Engineering code
S - Standard
L = Low Ambient Heat
Nominal Capacity (Btu /Hr.)
36 = 20,000 - 36,000 Plenum and louver configuration
C= Only for 36000 Btu units
Voltage
K = 230/208 V
Heater watts
00 = 0.0 kW
10 = 10.0 kW
15 = 15.0 KW
S= Standard
Outdoor Air/ Ventilation** S= Standard unit. No FreshAire™
F= Single OA Fan Powered FreshAire System 80 CFM
D= Dual OA Fans Powered FreshAire System 130 CFM
Model VRP36K
Cooling Performance Data (Cooling Standards: 95°F DB/75°F WB outdoor, 80°F DB/67°F WB indoor)
Voltage 230/208
Cooling Btu (Rated) 33,400
Cooling Btu (Min. - Max) 20,000 - 36,000
Outdoor Operating Range (°F ) 55 - 115
Power (W) 2990
SEER 15.5
EER 11.0
Sensible Heat Ratio 0.76
Cooling Amps 14.2
Heat Pump Performance Data
Voltage 230/208
Heating Btu ( Rated @ 47° F ) 28,500
Heating Btu ( @ 17° F ) 18,300
Heating Btu (Min. - Max.) 16,000 - 30,000
Heat Pump Outdoor Operating Range (°F )* 0 - 70
COP ( Rated @ 47° F ) 3.25
HSPF 8.6
Heating Power (W) 2570
Heating Amps 12.26
Due to continuing research in new energy-saving technology, specications are subject to change without notice.

5
Dimensions
Model VRP36K
Dimensions (W x D x H) 31 3/4" x 29 7/8" x 77 1/4"
Shipping Dimensions (W x D x H) 34" x 35" x 81"
Net Weight (lbs.) 330
Shipping Weight (lbs.) 357
R410A Charge (oz.) 125

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Electrical Data
MCA = Minimum Circuit Ampacity
MOP / MOCP - Maximum Over-current Protection / Breaker Size
Minimum Circuit Amps (MCA) and MOCP values in the above table are calculated in accordance with The NEC Article 440
NOTE: 15 kW electric heat models require dual service (60A + 30A)
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**
30A 10
60A 6
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
Electric
Heater
Amps
MCA MOP / MOCP
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 55.8 / 22.4 60 / 30
208 12280 41870 59.0

7
Air Flow Data
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.
Indoor CFM & External Static Pressure
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" lter
Condenser External Static Pressure
VRP Model Design Maximum
CFM ESP ("WC) ESP ("WC)
VRP36K 2030 0.03 0.20

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
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.
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.

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Installation Orientation
OUTSIDE GRILL
OUTSIDE WALL
Access Door Cut Out = 36”
37 3/4” ( Min. Required Inside Closet Dimension )
6Min. ” Required
3Min. ”
3Min. ”
35 7/8” ( Min. Required Inside Closet Dimension )
31 3/4”
29 7/8”
NOTE: The VRP 3-ton unit comes equipped with bi-directional casters for ease of movement. The casters only allow for
movement forward and backward. The VRP 3-ton should be installed with the access door positioned in front of the unit.

10
Exterior Wall Opening Dimensions
Exterior Wall Rough Opening Dimensions
Unit Width Height
VRPXWPC-* 33" 52 1/4"
NOTE: The distance between the rough opening and
the nished oor/platform must be 4”.
PARTNO.
4"
52 1/4"
33"

11
Interior (Closet) Wall Opening Dimensions
Return Air Access Door Wall Cut-Out
36.00”
84.00”
Interior Wall Rough Opening Dimensions
Unit Width Height
VRP36 36" 84"
NOTE: Dimensions based on standard 36” door
frame.

12
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.
VRPXWPC-8 adjusts for walls 4”- 8” thick.
VRPXWPC-14 adjusts for walls 8” - 14” thick
All installations are similar.
Flashing
1”-3” Screws to
attach the plenum
assembly to the wall
studs
Sealant
Shim

13
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 as shown above is optional (See Page 17).
5) Apply sealant to the outside plenum half and insert into the rough opening to ensure a water-tight seal.
Ensure that the outside plenum half is securely attached to the framed opening.
Step 1 - Outside Wall Plenum Half

14
Wall Plenum Installation
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) Flash the inside of the rough opening to ensure the proper t and level.
3) Insert inside plenum half (Part B) into Outside Plenum Half (Part A). Ensure that Part A does not back out of
the rough opening.
4) Remove the inside plenum half.
5) Apply sealant to the inside plenum half and insert into the rough opening to ensure a water-tight seal.
A

15
Wall Plenum Installation
Detail A
A
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 A. Pilot holes should be
located approximately 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.

16
Louver Installation
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.
2) Turn the louver sideways and push the louver out below the
divider in the wall plenum.
3) Pull the louver back against the wall plenum and align the holes.
4) Insert and tighten all eight provided fasteners. When the louver
is secured, remove the safety tether.

17
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
architectural louver.
2) Secure the plenum divider extension plate to the architectural louver using the two provided screws.
3) Use tape and sealant to seal any gaps.

18
PARTNO.
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.

19
Final Unit Installation Overview
Unit Final Placement - Front Install
1) Ensure that power is 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, it should butt up against the compression gasket.
4) Remove the front panel to access the chassis clamps. Attach the hooks into the plenum braces and close.
5) Reattach the front panel.
6) Identify the appropriate drain port to use and complete plumbing (See Page 22).
7) Attach the ductwork to the unit at the supply-air outlet and ensure the seal is air tight (See Page 23).
8) Wire and connect the wall controller (See Pages 24-27).
9) Connect the main power (See Page 25).

20
Final Unit Installation Overview
Unit Final Placement - Plenum Attachment
1) Ensure that power is off at the junction box feeding power to the air conditioner until all process steps are
completed.
2) Ensure that the unit is pushed ush against the start of the wall plenum.
3) Remove the front panel from the unit.
4) Reach under and behind the electrical box and locate the panel mounted fasteners (Detail A). There is one on
each of the left and right interior panel.
5) Align the hook of each fastener with the brackets mounted on the interior portion on the wall plenum.
6) Pull back on the fastener handles until locked.
DETAIL A
SCALE 1 / 2
A
PARTNO.