RX18WMVJU9 + FFQ18W2VJU9

Daikin 18,000 BTU 1.5 Ton
Single-Zone Ceiling Cassette
Ductless Heat Pump

The RX18WMVJU9 is a Daikin regular (standard) single-zone ceiling cassette ductless heat pump paired with the matching FFQ recessed indoor unit. It’s built for smooth, steady comfort using inverter-driven output — meaning it ramps up and down instead of cycling hard on/off like a basic single-stage system.

 

This 18,000 BTU (1.5-ton) size is meant for large single zones — big open basements, larger open-concept main floors, or spaces with higher heat loss/gain (big windows, lots of sun, older envelope, etc.). It can be a great “one-zone solution” when the ceiling location is right and the space genuinely needs the capacity.

 

This is also the size where oversizing becomes common. If it’s too much for the room, you can lose some of the stable comfort you’re paying for. We treat this size as a bigger-zone tool and verify it’s the right fit based on real conditions (layout, ceiling heights, usage patterns, and insulation realities).

We confirm sizing and pricing on site – no pressure, no upsells.

Installed in Ottawa and surrounding areas by Peak Comfort HVAC

Specs for the RX18WMVJU9 + FFQ18W2VJU9

  • System type: Single-zone ceiling cassette ductless heat pump (Regular / Standard efficiency)
  • Nominal capacity: 18,000 BTU class — AHRI rated 17,400 BTU/h cooling / 21,600 BTU/h heating
  • Matched indoor unit: FFQ18W2VJU9
  • Matched outdoor unit: RX18WMVJU9
  • Efficiency (AHRI): 18.20 SEER2 / 11.50 EER2 / 8.40 HSPF2
  • Lowest sound level (Quiet/Low): Indoor 33 dB(A) (H/M/L = 45/41/33) / Outdoor 54 dB(A) cooling (55 dB(A) heating)
  • Refrigerant: R-410A
  • Indoor dimensions (H×W×D): 10-1/4" × 22-5/8" × 22-5/8"
  • Outdoor dimensions (H×W×D): 28-15/16" × 34-1/4" × 12-5/8"
  • Weight: Indoor 39 lb / Outdoor 100 lb
  • AHRI reference #: TBD

Technical documents

Key features of Daikin Regular Single-Zone Ceiling Cassette (FFQ + RX)
  • Recessed ceiling cassette design: frees up wall space and keeps the install visually clean.
  • Inverter-driven comfort: modulates output for steadier temperatures and less on/off cycling.
  • Even air distribution: ceiling placement can reduce “hot/cold corners” when located properly.
  • Good option for awkward wall layouts: helps when wall-mount placement would clash with windows, furniture, or sightlines.
  • Serviceability matters: we plan access, drain routing, line-set path, and clean electrical/condenser work so performance matches the brochure.
  • No upsell approach: we confirm sizing and layout on site and give clear options — no pressure, no scare tactics.

Want to see if this ductless is the right fit?

Book a no-pressure ductless estimate. We’ll confirm layout, placement, and sizing - then give you clear options and pricing.

Get in Touch

Office Address:
275 Montfort St, Ottawa
ON K1L 5N8

Servicing: Ottawa, Orleans, Nepean, And the surrounding areas

Phone:

E-Mail:
info@peakcomfort.ca


 © Peak Comfort HVAC Inc. All Rights Reserved.