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Innovative | Intelligent | Inverter
VRP12K/R
VRP24K/R
For Commercial and Residen-
tial Applications
One or more of the following
patents may apply:
10408504
10436457
10488083
10731899
Additional patents pending
PRECISION
VRP12/24 IOM April 2025
Variable Refrigerant
Packaged Heat Pump
C
US
VRP IOM 92000078
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Table of Contents
Related Manuals for Friedrich VRP12K/R
Summary of Contents for Friedrich VRP12K/R
- Page 1 Variable Refrigerant Packaged Heat Pump Innovative | Intelligent | Inverter VRP12K/R VRP24K/R For Commercial and Residen- tial Applications One or more of the following patents may apply: 10408504 10436457 10488083 10731899 Additional patents pending PRECISION VRP IOM 92000078 VRP12/24 IOM April 2025...
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Page 2: Table Of Contents
Table of Contents Warnings __________________________________________________________________________________ 3 General Specifications ______________________________________________________________________________ 8 Dimensions ________________________________________________________________________________ 9 Electrical Data ____________________________________________________________________________ 10 Air Flow Data _____________________________________________________________________________ 11 Installation Minimum Clearances _______________________________________________________________________ 12 Installation Orientations _____________________________________________________________________ 13 Rough Opening Dimensions __________________________________________________________________ 14 Preliminary Plumbing ______________________________________________________________________ 16 Wall Plenum Installation ____________________________________________________________________ 17 Louver Installation _________________________________________________________________________ 21 Unit Installation ___________________________________________________________________________ 23... -
Page 3: Warnings
WARNING Your safety and the safety of others are very Disconnection from supply voltage for all poles must be important. incorporated into the fixed wiring. It is the installer’s re- We have provided many important safety messages in sponsibility to thoroughly read the manual and to properly install the equipment in conformance with NFPA 70-2008 this manual and on your appliance. - Page 4 WARNING: If the unit appears damaged, or if a refrigerant leak is suspected, do not install . Contact a licensed repair person to per form a leak check on the unit. Scan this QR code to be linked to the Friedrich professional support page where you can locate the Service Manual. Unventilated areas WARNING : APPLIANCE shall be stored in a room without continuously operating open flames (for example an operating gas appli ance) or other POTENTIAL IGNITION SOURCES (for example an operating electric heater, hot surfaces).
- Page 5 Important Safety and General Information Qualification of Workers WARNING: Any person who is involved with working on or breaking into a refrigerant circuit should be documented by a current valid certificate from a national training organization or manufacturers that are accredited to teach the relevant national competency stan- dards that may be set in legislation to handle refrigerants safely in accordance with an industry recognized assessment specification.
- Page 6 Warning: Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. At all times Friedrich AC maintenance and service guidelines shall be followed If in doubt, consult Friedrich AC technical department for assistance.
- Page 7 Important Safety and General Information Checks to electrical devices Warning: Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is satisfactorily dealt with.
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Page 8: Specifications
General Specifications Nomenclature - A00 Series Marketing Engineering Revision Revision VRP Heat Pump S= Standard L= Basepan Heat Nominal Capacity (Btu /Hr.) 12 = 5,400- 16,000 Operating Range Plenum and Louver Configuration 24 =14,500 - 28,000 Operating Range A= Compact (VRP12 Only) Voltage B= Standard K = 230/208 V... -
Page 9: Dimensions
Dimensions VRP Dimensional Data 12K DUCT FLANGE VRP Dimensional Data 24K 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"... -
Page 10: Electrical Data
Please refer to the electrical data section above for electric heat capacities versus utilization voltage. Friedrich recommends ASHRAE 99.6 when sizing electrical heaters. VRP does not have simultaneous heat pump/heater kit operation. During single digit temperatures, heat pump operation will likely not satisfy the heating demand unless the specifying engineer has designed the BTU output for heat. -
Page 11: Air Flow Data
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. -
Page 12: Minimum Clearances
72” must be kept. FENCE OUTDOOR MAJOR OBSTRUCTIONS 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. -
Page 13: Installation Orientations
33 1/8” ( Min. Required Inside Closet Dimension ) Access Door Cut Out = ” Min. 8”(Required) 26 1/8” 33 1/2” ( Min. Required Inside Closet Dimension ) Right Installation-Top View While all installation orientations are feasible, for the ease of installation and serviceability, Friedrich recommends Front Installation. -
Page 14: Rough Opening Dimensions
Standard 28 1/8" 42 1/4" (VRPXWPB-*) Compact (A) configuration is for VRP12K/R units only. Standard (B) configuration is for VRP12K/R and VRP24K/R units. VRP12K/R unit can be adapted to a Standard plenum with a factory provided adapter. Ensure that the correct wall plenum is selected based on unit configuration. - Page 15 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 floor does not exceed the height of the interior rough opening.
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Page 16: Preliminary Plumbing
Preliminary Plumbing Standard (Front Install) The image to the right shows the installation closet for the standard (Front Install) configuration (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. -
Page 17: Wall Plenum Installation
Wall Plenum Installation Parts included in Plenum kit: Outside Plenum (Part A) Divider (Part C) Inside Plenum (Part B) Baffle (Part D) Field Supplied Parts: Sealant, attachment screws, and flashing Flashing are field supplied. Silicone sealant is recommended. Sealant VRPXWPA-8, VRPXWPB-8 adjust for walls up to 4”- 8” thick. VRPXWPA-14, VRPXWPB-14 adjust for walls up to 8”... - Page 18 Wall Plenum Installation Step 1 - Outside Wall Plenum Half 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.
- Page 19 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 flange corners and unused holes. See Detail A. 2) Place the baffle (Part D) on the approprate baffle mounting tabs located on the inner perimeter of the inside plenum half based on unit size (Compact/Standard).
- Page 20 Wall Plenum Installation Step 3 - Inside Wall Plenum (cont.) Detail B 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”...
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Page 21: 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 Louver Installation the Wall Plenum holes with the threaded holes in the louver, install and tighten the 8 screws. Installation of the louver PRIOR to Wall Plenum Installation Attach louver with 8 screws provided... - Page 22 Final Wall Plenum and Architectural Louver Installation Plenum Divider Extension Plate Installed Plenum Divider Extension Plate (Baffle) 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.
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Page 23: Unit Installation
Unit Installation Unit Placement Prior to Installation ( Front-Install Configuration) All louver, plenum, rough plumbing, and rough wiring steps must be complete prior to final installation of the air conditioning chassis. - Page 24 Final Unit Installation Overview Unit Final Placement - Front Install Ensure that power if off at the junction box feeding power to the air conditioner until all process steps are completed. Move the unit from the shipping base and onto the installation site. Insert the unit’s rear extension into the wall plenum.
- Page 25 Side Configuration Installation Left Install VRP Unit Left Install VRP Unit Prepared for Installation in Closet (Fully Installed) For side-install applications, place the unit adjacent to the closet and slide it in. Then, slide the unit backwardward into the plenum.
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Page 26: Drain Installation
Final Drain Installation Unit Drain Installation ” ” ” NOTE: Failure to follow the following procedures may result in serious property damage. A field supplied secondary condensate pan may be required. Check with local codes. In case of drainage system blockage, the unit base will allow excess water to flow out of the unit through the plenum and the architectural louver. -
Page 27: Ductwork Installation
Ductwork Installation Supply air duct connection is the responsibility of the installer and should be installed per industry best practices. Sheet metal or duct board may be used for the transition from the discharge to 10” or larger diameter flexible ducting. Avoid sharp transitions in the ductwork to ensure optimal indoor blower performance. -
Page 28: Wall Controller Installation
Please check the Instruction and Operational manual of the VRPX*4 Thermostat for detailed installation. All units are equipped with a RJ-45 connection in front to be able to connect to a wired or wireless thermostat. VRP units are only compatible with Friedrich VRPX*4 controller. -
Page 29: Electrical Installation
Electrical Installation Electrical Installation Remove and discard hole knock-out from the side of the unit (Detail A) Remove and discard hole knock-out from the side of the unit (Detail A) Remove the Electrical Access Panel (Detail B) to Remove the electrical access panel to expose expose the Incoming Power Terminal Block the incoming Power terminal block (Detail C, see below) -
Page 30: Return Air Door Installation
Return Air Door Installation Option 1 Option 2 The door panel is supported along one edge by the provided hinge. The opposite edge has a latch which secures the panel to the adjacent framed structure. The kit contains hinge bracket for mounting the door with the return air openings low (shown in option 1) or high (shown in Option 2) on the door. -
Page 31: Freshaire™ System Set-Up And Operation
FreshAire™ System Set-Up and Operation FreshAire™ System Set-Up and Operation Detail A If equipped with the FreshAire™ System, the unit will come with a FreshAire Filter and Blank Off Plate. Blank Off Plate must be removed before use. To remove the Blank Off Plate, simply pull the attached tab Shown in Detail A. -
Page 32: Basepan Heater
Basepan Heater Basepan Heat Thermostat VRP model numbers that end with the ‘L’ character will come equipped with a basepan heater. The basepan heat engages and disengages automatically based on outdoor ambient and base-pan temperatures. -
Page 33: Final Installation Checklist
Authorized single (F option) outdoor air fan and filter, or dual Friedrich Warranty Service Company in the area (D option) outdoor air fans and filters. for future reference if necessary. -
Page 34: Service And Warranty
Service & Warranty Servicing / Chassis Quick Change Outs To Remove the Chassis from the Closet: The chassis is designed for quick disconnect A. Switch the wall controller off. and change out. For minor electrical service, B. Disconnect the power coming into the unit from the Electrical Access Panel is easily removable the main breaker panel or the closet mounted once the screws are removed. - Page 35 2. Any defective part to be replaced must be made available to FRIEDRICH in exchange for the replacement part. You must present proof of the original date of installation of the product in order to establish the effective date of the warranty. Otherwise, the effective date will be deemed to be the date of purchase plus thirty days.
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- Page 37 Variable Refrigerant Packaged Heat Pump Innovative | Intelligent | Inverter Friedrich Air Conditioning Co. | 10001 Reunion Place, Suite 500 | San Antonio, TX 78216 | 877.599.5665 | www.friedrich.com...
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