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IDENTIFY YOUR EXISTING SLEEVE

What fits the Friedrich WSE sleeve?

The assembled Friedrich WSE sleeve. This pilot documents replacement with the listed R-32 Uni-Fit units; additional reviewed WallMaster candidates remain unpublished and affected source conflicts are explicit. Confirm the actual sleeve identity and condition.

12 documented options. 10 with required kit included.

Confirm this is your actual sleeve. Each option has separate installation and electrical requirements.

How to identify it

  • Confirm WSE on the sleeve documentation or label. The assembled WSE and the knock-down WSEZ are separately named products; this record covers WSE.Source 4
  • The brochure lists the WSE housing as 27 in wide × 16.75 in high × 16.75 in deep. These are sleeve dimensions, not a measured internal clearance or proof of compatibility.Source 2
  • WSE is sold with an expanded-metal grille for WallMaster installations. The reviewed Uni-Fit replacement procedure instead requires its specified dual-intake grille; follow the model-specific relationship below rather than retaining the old grille.Source 4Source 13

Dimensions: three different measurements

Interior dimensions, outside sleeve dimensions and the wall opening are different. These values describe the equipment; they do not prove fit.

Interior width
Not documented
Interior height
Not documented
Interior depth
Not documented
External width
27 inSource 2
External height
16.75 inSource 2
External depth
16.75 inSource 2
Wall opening width
27.25 inSource 2
Wall opening height
17.25 inSource 2

Replacement options

ModelFit statusCoolingElectrical requirementsRequired / conditional partsWhat to check
Friedrich WCVT12B10B2026 WallMaster inverter / R-32, final B suffix (BR_WM_REV 07-15-25)Availability not checkedDocumented fit — conditions applySleeve: Friedrich WSESource 2Source 3Source 413,500 BTU/hSource 1115 VSource 1PlugNEMA 5-15PSource 3ReceptacleNEMA 5-15RSource 3Source 119Specified circuit / fuse15 ASource 3
  • External condensate drain kitPart number: DKOnly if the stated condition appliesSource 4Package: Not documented
4 installation checks
  • Confirm an actual WSE sleeve in serviceable condition. The exact B-suffix model appears in the brochure's installation table, whose note requires a WSE sleeve; dimensions alone are not the evidence for this relation.Source 2
  • Verify the rear grille against the manufacturer installation requirements. Incorrect airflow can recirculate discharge air and cause shutdown; do not assume an old grille is suitable.Source 4
  • Check the actual installation for this 115 V model, NEMA 5-15P plug and manufacturer-specified 15 A circuit/fuse. Cooling running current is a separate specification.Source 1Source 3
  • DK is an optional external drain kit when connection to a condensate disposal system is necessary or desired. It is not a general requirement for every WSE replacement.Source 4
Friedrich WCVT16B30B2026 WallMaster inverter / R-32, final B suffix (BR_WM_REV 07-15-25)Availability not checkedDocumented fit — conditions applySleeve: Friedrich WSESource 2Source 3Source 416,800 BTU/hSource 1230 VSource 1PlugNEMA 6-15PSource 3ReceptacleNEMA 6-15RSource 3Source 119Specified circuit / fuse15 ASource 3
  • External condensate drain kitPart number: DKOnly if the stated condition appliesSource 4Package: Not documented
4 installation checks
  • Confirm an actual WSE sleeve in serviceable condition. The exact B-suffix model appears in the brochure's installation table, whose note requires a WSE sleeve; dimensions alone are not the evidence for this relation.Source 2
  • Verify the rear grille against the manufacturer installation requirements. Incorrect airflow can recirculate discharge air and cause shutdown; do not assume an old grille is suitable.Source 4
  • Check the actual installation for this 230 V model, NEMA 6-15P plug and manufacturer-specified 15 A circuit/fuse. Cooling running current is a separate specification.Source 1Source 3
  • DK is an optional external drain kit when connection to a condensate disposal system is necessary or desired. It is not a general requirement for every WSE replacement.Source 4
Friedrich UCT08B10AUCT/UET B-series, final A suffix, R-32; specifications scoped to the 2026 brochure revision 02-19-25Availability not checkedKit included — install as specifiedSleeve: Friedrich WSESource 10Source 11Source 13Source 14Source 1088,000 BTU/hSource 9115 VSource 9PlugNEMA 5-15PSource 10ReceptacleNEMA 5-15RSource 14Specified circuit / fuse15 ASource 10
  • Provided Uni-Fit installation kit: specified dual-intake grille, seals and centering/grounding materials; confirm package contentsPart number: Not documentedRequired under the listed conditionsSource 13Source 108Package: Included in the unit package — install as specified
  • Included decorative trim ringPart number: Not documentedRequired under the listed conditionsSource 11Source 108Package: Included in the unit package — install as specified
5 installation checks
  • The current brochure and the exact-generation R-32 manual name Friedrich WSE among existing sleeves. Verify that the actual housing is securely installed and structurally sound; do not infer identity from a 27-inch measurement alone.Source 11Source 13
  • Use generic-sleeve Method B on printed page 16, with the specified dual-intake grille, sealing and centering materials and grounding wire. Remove the old rear grille. Optional Method A and architectural louver UXAA on page 15 are specified for USC, not this WSE procedure.Source 13
  • The manual describes a provided installation kit. Confirm that the exact unit package includes the required grille and seals; obtain manufacturer confirmation of replacement part numbers if these pieces are missing. No separate kit SKU is established in this record.Source 13Source 108
  • Use the included decorative trim ring to cover the gap around the smaller chassis. Follow the prescribed sealing and 3/8-inch downward slope from front to back; use the manual’s shimming procedure if needed.Source 11Source 13
  • Check the installation for the exact 115 V model, NEMA 5-15P plug, NEMA 5-15R receptacle and manufacturer-specified 15 A circuit/fuse. Do not derive the circuit from cooling running current.Source 10Source 14
Friedrich UCT10B10AUCT/UET B-series, final A suffix, R-32; specifications scoped to the 2026 brochure revision 02-19-25Availability not checkedKit included — install as specifiedSleeve: Friedrich WSESource 10Source 11Source 13Source 14Source 10810,000 BTU/hSource 9115 VSource 9PlugNEMA 5-15PSource 10ReceptacleNEMA 5-15RSource 14Specified circuit / fuse15 ASource 10
  • Provided Uni-Fit installation kit: specified dual-intake grille, seals and centering/grounding materials; confirm package contentsPart number: Not documentedRequired under the listed conditionsSource 13Source 108Package: Included in the unit package — install as specified
  • Included decorative trim ringPart number: Not documentedRequired under the listed conditionsSource 11Source 108Package: Included in the unit package — install as specified
5 installation checks
  • The current brochure and the exact-generation R-32 manual name Friedrich WSE among existing sleeves. Verify that the actual housing is securely installed and structurally sound; do not infer identity from a 27-inch measurement alone.Source 11Source 13
  • Use generic-sleeve Method B on printed page 16, with the specified dual-intake grille, sealing and centering materials and grounding wire. Remove the old rear grille. Optional Method A and architectural louver UXAA on page 15 are specified for USC, not this WSE procedure.Source 13
  • The manual describes a provided installation kit. Confirm that the exact unit package includes the required grille and seals; obtain manufacturer confirmation of replacement part numbers if these pieces are missing. No separate kit SKU is established in this record.Source 13Source 108
  • Use the included decorative trim ring to cover the gap around the smaller chassis. Follow the prescribed sealing and 3/8-inch downward slope from front to back; use the manual’s shimming procedure if needed.Source 11Source 13
  • Check the installation for the exact 115 V model, NEMA 5-15P plug, NEMA 5-15R receptacle and manufacturer-specified 15 A circuit/fuse. Do not derive the circuit from cooling running current.Source 10Source 14
Friedrich UCT10B30AUCT/UET B-series, final A suffix, R-32; specifications scoped to the 2026 brochure revision 02-19-25Availability not checkedKit included — install as specifiedSleeve: Friedrich WSESource 10Source 11Source 13Source 14Source 10810,000 BTU/hSource 9230 VSource 9PlugNEMA 6-15PSource 10ReceptacleNEMA 6-15RSource 14Specified circuit / fuse15 ASource 10
  • Provided Uni-Fit installation kit: specified dual-intake grille, seals and centering/grounding materials; confirm package contentsPart number: Not documentedRequired under the listed conditionsSource 13Source 108Package: Included in the unit package — install as specified
  • Included decorative trim ringPart number: Not documentedRequired under the listed conditionsSource 11Source 108Package: Included in the unit package — install as specified
5 installation checks
  • The current brochure and the exact-generation R-32 manual name Friedrich WSE among existing sleeves. Verify that the actual housing is securely installed and structurally sound; do not infer identity from a 27-inch measurement alone.Source 11Source 13
  • Use generic-sleeve Method B on printed page 16, with the specified dual-intake grille, sealing and centering materials and grounding wire. Remove the old rear grille. Optional Method A and architectural louver UXAA on page 15 are specified for USC, not this WSE procedure.Source 13
  • The manual describes a provided installation kit. Confirm that the exact unit package includes the required grille and seals; obtain manufacturer confirmation of replacement part numbers if these pieces are missing. No separate kit SKU is established in this record.Source 13Source 108
  • Use the included decorative trim ring to cover the gap around the smaller chassis. Follow the prescribed sealing and 3/8-inch downward slope from front to back; use the manual’s shimming procedure if needed.Source 11Source 13
  • Check the installation for the exact 230 V model, NEMA 6-15P plug, NEMA 6-15R receptacle and manufacturer-specified 15 A circuit/fuse. Do not derive the circuit from cooling running current.Source 10Source 14
Friedrich UCT12B10AUCT/UET B-series, final A suffix, R-32; specifications scoped to the 2026 brochure revision 02-19-25Availability not checkedKit included — install as specifiedSleeve: Friedrich WSESource 10Source 11Source 13Source 14Source 10812,000 BTU/hSource 9115 VSource 9PlugNEMA 5-15PSource 10ReceptacleNEMA 5-15RSource 14Specified circuit / fuse15 ASource 10
  • Provided Uni-Fit installation kit: specified dual-intake grille, seals and centering/grounding materials; confirm package contentsPart number: Not documentedRequired under the listed conditionsSource 13Source 108Package: Included in the unit package — install as specified
  • Included decorative trim ringPart number: Not documentedRequired under the listed conditionsSource 11Source 108Package: Included in the unit package — install as specified
5 installation checks
  • The current brochure and the exact-generation R-32 manual name Friedrich WSE among existing sleeves. Verify that the actual housing is securely installed and structurally sound; do not infer identity from a 27-inch measurement alone.Source 11Source 13
  • Use generic-sleeve Method B on printed page 16, with the specified dual-intake grille, sealing and centering materials and grounding wire. Remove the old rear grille. Optional Method A and architectural louver UXAA on page 15 are specified for USC, not this WSE procedure.Source 13
  • The manual describes a provided installation kit. Confirm that the exact unit package includes the required grille and seals; obtain manufacturer confirmation of replacement part numbers if these pieces are missing. No separate kit SKU is established in this record.Source 13Source 108
  • Use the included decorative trim ring to cover the gap around the smaller chassis. Follow the prescribed sealing and 3/8-inch downward slope from front to back; use the manual’s shimming procedure if needed.Source 11Source 13
  • Check the installation for the exact 115 V model, NEMA 5-15P plug, NEMA 5-15R receptacle and manufacturer-specified 15 A circuit/fuse. Do not derive the circuit from cooling running current.Source 10Source 14
Friedrich UCT12B30AUCT/UET B-series, final A suffix, R-32; specifications scoped to the 2026 brochure revision 02-19-25Availability not checkedKit included — install as specifiedSleeve: Friedrich WSESource 10Source 11Source 13Source 14Source 10812,000 BTU/hSource 9230 VSource 9PlugNEMA 6-15PSource 10ReceptacleNEMA 6-15RSource 14Specified circuit / fuse15 ASource 10
  • Provided Uni-Fit installation kit: specified dual-intake grille, seals and centering/grounding materials; confirm package contentsPart number: Not documentedRequired under the listed conditionsSource 13Source 108Package: Included in the unit package — install as specified
  • Included decorative trim ringPart number: Not documentedRequired under the listed conditionsSource 11Source 108Package: Included in the unit package — install as specified
5 installation checks
  • The current brochure and the exact-generation R-32 manual name Friedrich WSE among existing sleeves. Verify that the actual housing is securely installed and structurally sound; do not infer identity from a 27-inch measurement alone.Source 11Source 13
  • Use generic-sleeve Method B on printed page 16, with the specified dual-intake grille, sealing and centering materials and grounding wire. Remove the old rear grille. Optional Method A and architectural louver UXAA on page 15 are specified for USC, not this WSE procedure.Source 13
  • The manual describes a provided installation kit. Confirm that the exact unit package includes the required grille and seals; obtain manufacturer confirmation of replacement part numbers if these pieces are missing. No separate kit SKU is established in this record.Source 13Source 108
  • Use the included decorative trim ring to cover the gap around the smaller chassis. Follow the prescribed sealing and 3/8-inch downward slope from front to back; use the manual’s shimming procedure if needed.Source 11Source 13
  • Check the installation for the exact 230 V model, NEMA 6-15P plug, NEMA 6-15R receptacle and manufacturer-specified 15 A circuit/fuse. Do not derive the circuit from cooling running current.Source 10Source 14
Friedrich UCT14B30AUCT/UET B-series, final A suffix, R-32; specifications scoped to the 2026 brochure revision 02-19-25Availability not checkedKit included — install as specifiedSleeve: Friedrich WSESource 10Source 11Source 13Source 14Source 10814,000 BTU/hSource 9230 VSource 9PlugNEMA 6-15PSource 10ReceptacleNEMA 6-15RSource 14Specified circuit / fuse15 ASource 10
  • Provided Uni-Fit installation kit: specified dual-intake grille, seals and centering/grounding materials; confirm package contentsPart number: Not documentedRequired under the listed conditionsSource 13Source 108Package: Included in the unit package — install as specified
  • Included decorative trim ringPart number: Not documentedRequired under the listed conditionsSource 11Source 108Package: Included in the unit package — install as specified
5 installation checks
  • The current brochure and the exact-generation R-32 manual name Friedrich WSE among existing sleeves. Verify that the actual housing is securely installed and structurally sound; do not infer identity from a 27-inch measurement alone.Source 11Source 13
  • Use generic-sleeve Method B on printed page 16, with the specified dual-intake grille, sealing and centering materials and grounding wire. Remove the old rear grille. Optional Method A and architectural louver UXAA on page 15 are specified for USC, not this WSE procedure.Source 13
  • The manual describes a provided installation kit. Confirm that the exact unit package includes the required grille and seals; obtain manufacturer confirmation of replacement part numbers if these pieces are missing. No separate kit SKU is established in this record.Source 13Source 108
  • Use the included decorative trim ring to cover the gap around the smaller chassis. Follow the prescribed sealing and 3/8-inch downward slope from front to back; use the manual’s shimming procedure if needed.Source 11Source 13
  • Check the installation for the exact 230 V model, NEMA 6-15P plug, NEMA 6-15R receptacle and manufacturer-specified 15 A circuit/fuse. Do not derive the circuit from cooling running current.Source 10Source 14
Friedrich UET08B11AUCT/UET B-series, final A suffix, R-32; specifications scoped to the 2026 brochure revision 02-19-25Availability not checkedKit included — install as specifiedSleeve: Friedrich WSESource 10Source 11Source 13Source 14Source 1088,000 BTU/hSource 9115 VSource 9PlugNEMA 5-15PSource 10ReceptacleNEMA 5-15RSource 14Specified circuit / fuse15 ASource 10
  • Provided Uni-Fit installation kit: specified dual-intake grille, seals and centering/grounding materials; confirm package contentsPart number: Not documentedRequired under the listed conditionsSource 13Source 108Package: Included in the unit package — install as specified
  • Included decorative trim ringPart number: Not documentedRequired under the listed conditionsSource 11Source 108Package: Included in the unit package — install as specified
5 installation checks
  • The current brochure and the exact-generation R-32 manual name Friedrich WSE among existing sleeves. Verify that the actual housing is securely installed and structurally sound; do not infer identity from a 27-inch measurement alone.Source 11Source 13
  • Use generic-sleeve Method B on printed page 16, with the specified dual-intake grille, sealing and centering materials and grounding wire. Remove the old rear grille. Optional Method A and architectural louver UXAA on page 15 are specified for USC, not this WSE procedure.Source 13
  • The manual describes a provided installation kit. Confirm that the exact unit package includes the required grille and seals; obtain manufacturer confirmation of replacement part numbers if these pieces are missing. No separate kit SKU is established in this record.Source 13Source 108
  • Use the included decorative trim ring to cover the gap around the smaller chassis. Follow the prescribed sealing and 3/8-inch downward slope from front to back; use the manual’s shimming procedure if needed.Source 11Source 13
  • Check the installation for the exact 115 V model, NEMA 5-15P plug, NEMA 5-15R receptacle and manufacturer-specified 15 A circuit/fuse. Do not derive the circuit from cooling running current.Source 10Source 14
Friedrich UET10B33AUCT/UET B-series, final A suffix, R-32; specifications scoped to the 2026 brochure revision 02-19-25Availability not checkedKit included — install as specifiedSleeve: Friedrich WSESource 10Source 11Source 13Source 14Source 10810,000 BTU/hSource 9230 VSource 9PlugNEMA 6-20PSource 10ReceptacleNEMA 6-20RSource 14Specified circuit / fuse20 ASource 10
  • Provided Uni-Fit installation kit: specified dual-intake grille, seals and centering/grounding materials; confirm package contentsPart number: Not documentedRequired under the listed conditionsSource 13Source 108Package: Included in the unit package — install as specified
  • Included decorative trim ringPart number: Not documentedRequired under the listed conditionsSource 11Source 108Package: Included in the unit package — install as specified
5 installation checks
  • The current brochure and the exact-generation R-32 manual name Friedrich WSE among existing sleeves. Verify that the actual housing is securely installed and structurally sound; do not infer identity from a 27-inch measurement alone.Source 11Source 13
  • Use generic-sleeve Method B on printed page 16, with the specified dual-intake grille, sealing and centering materials and grounding wire. Remove the old rear grille. Optional Method A and architectural louver UXAA on page 15 are specified for USC, not this WSE procedure.Source 13
  • The manual describes a provided installation kit. Confirm that the exact unit package includes the required grille and seals; obtain manufacturer confirmation of replacement part numbers if these pieces are missing. No separate kit SKU is established in this record.Source 13Source 108
  • Use the included decorative trim ring to cover the gap around the smaller chassis. Follow the prescribed sealing and 3/8-inch downward slope from front to back; use the manual’s shimming procedure if needed.Source 11Source 13
  • Check the installation for the exact 230 V model, NEMA 6-20P plug, NEMA 6-20R receptacle and manufacturer-specified 20 A circuit/fuse. Do not derive the circuit from cooling running current.Source 10Source 14
Friedrich UET12B33AUCT/UET B-series, final A suffix, R-32; specifications scoped to the 2026 brochure revision 02-19-25Availability not checkedKit included — install as specifiedSleeve: Friedrich WSESource 10Source 11Source 13Source 14Source 10812,000 BTU/hSource 9230 VSource 9PlugNEMA 6-20PSource 10ReceptacleNEMA 6-20RSource 14Specified circuit / fuse20 ASource 10
  • Provided Uni-Fit installation kit: specified dual-intake grille, seals and centering/grounding materials; confirm package contentsPart number: Not documentedRequired under the listed conditionsSource 13Source 108Package: Included in the unit package — install as specified
  • Included decorative trim ringPart number: Not documentedRequired under the listed conditionsSource 11Source 108Package: Included in the unit package — install as specified
5 installation checks
  • The current brochure and the exact-generation R-32 manual name Friedrich WSE among existing sleeves. Verify that the actual housing is securely installed and structurally sound; do not infer identity from a 27-inch measurement alone.Source 11Source 13
  • Use generic-sleeve Method B on printed page 16, with the specified dual-intake grille, sealing and centering materials and grounding wire. Remove the old rear grille. Optional Method A and architectural louver UXAA on page 15 are specified for USC, not this WSE procedure.Source 13
  • The manual describes a provided installation kit. Confirm that the exact unit package includes the required grille and seals; obtain manufacturer confirmation of replacement part numbers if these pieces are missing. No separate kit SKU is established in this record.Source 13Source 108
  • Use the included decorative trim ring to cover the gap around the smaller chassis. Follow the prescribed sealing and 3/8-inch downward slope from front to back; use the manual’s shimming procedure if needed.Source 11Source 13
  • Check the installation for the exact 230 V model, NEMA 6-20P plug, NEMA 6-20R receptacle and manufacturer-specified 20 A circuit/fuse. Do not derive the circuit from cooling running current.Source 10Source 14
Friedrich UET14B33AUCT/UET B-series, final A suffix, R-32; specifications scoped to the 2026 brochure revision 02-19-25Availability not checkedKit included — install as specifiedSleeve: Friedrich WSESource 10Source 11Source 13Source 14Source 10814,000 BTU/hSource 9230 VSource 9PlugNEMA 6-20PSource 10ReceptacleNEMA 6-20RSource 14Specified circuit / fuse20 ASource 10
  • Provided Uni-Fit installation kit: specified dual-intake grille, seals and centering/grounding materials; confirm package contentsPart number: Not documentedRequired under the listed conditionsSource 13Source 108Package: Included in the unit package — install as specified
  • Included decorative trim ringPart number: Not documentedRequired under the listed conditionsSource 11Source 108Package: Included in the unit package — install as specified
5 installation checks
  • The current brochure and the exact-generation R-32 manual name Friedrich WSE among existing sleeves. Verify that the actual housing is securely installed and structurally sound; do not infer identity from a 27-inch measurement alone.Source 11Source 13
  • Use generic-sleeve Method B on printed page 16, with the specified dual-intake grille, sealing and centering materials and grounding wire. Remove the old rear grille. Optional Method A and architectural louver UXAA on page 15 are specified for USC, not this WSE procedure.Source 13
  • The manual describes a provided installation kit. Confirm that the exact unit package includes the required grille and seals; obtain manufacturer confirmation of replacement part numbers if these pieces are missing. No separate kit SKU is established in this record.Source 13Source 108
  • Use the included decorative trim ring to cover the gap around the smaller chassis. Follow the prescribed sealing and 3/8-inch downward slope from front to back; use the manual’s shimming procedure if needed.Source 11Source 13
  • Check the installation for the exact 230 V model, NEMA 6-20P plug, NEMA 6-20R receptacle and manufacturer-specified 20 A circuit/fuse. Do not derive the circuit from cooling running current.Source 10Source 14

Old models documented for this sleeve

No old-model associations have been published yet.

Sources and review

Reviewed 2026-10-13.