Existing-building modernization

Unlock hidden value from your legacy two-pipe buildings.

  • Deliver four-pipe-like heating and cooling on demand, for every room.
  • Preserve your existing two-pipe infrastructure.
  • Maintain full-scale building operation during your project period.
  • Phase your upgrade to meet any budget size, unlike all-or-nothing four-pipe upgrades.
PMAC ceiling unit with a galvanized enclosure and filter face
Hybrid fan coil + heat pumpPMAC ceiling unitPMAC product image

Our approach

We solve renovation pain points with one turnkey solution.

PerFitTech is your one-stop shop for assessment, engineering, equipment, controls, installation, and support.

  • Preserve valuable two-pipe infrastructure without demolition.

  • Transform what holds the building back.

  • Enable IoT and prepare your mechanical system for the AI era.

  • Avoid disrupting ongoing business operations.

Where we create value

Creating far more value than a conventional four-pipe upgrade.

Value driver PerFitTech modernization Conventional four-pipe upgrade
01Absolute comfort
  • Heating and cooling on demand in every room.
  • Faster temperature delivery and far less temperature fluctuation through proprietary inverter technology.
  • Heating and cooling on demand in every room, requiring separate hot- and chilled-water piping.
  • No inverter technology and no modulating control.
02Operating continuity
  • Upgrade room by room without disrupting building operations.
  • No revenue loss with room-by-room upgrades and easy pauses on fully booked days.
  • Requires a full-scale shutdown of building operations.
  • Complete revenue loss for the entire project period (months to years and potentially millions lost).
03Capital flexibility
  • Phase your upgrade to meet any budget size.
  • Deliver upgrades to high-return areas first.
  • Low capital risk.
  • Commit capital to an all-or-nothing infrastructure upgrade.
  • High capital risk.
04Future proofed value
  • Connected systems, sensing, and analytics prepare your mechanical system for IoT and the AI era.
  • Uses less than half the energy of a four-pipe system, with heat recovery features delivering excellent efficiency at partial loads.
  • Enables remote controls and updates.
  • A piping conversion alone does not add connected controls, data, or analytics.
  • Increases energy consumption, especially at partial heating and cooling loads.
05Enhance infrastructure resilience
  • Provides 60% heating and cooling capacity, even with central plant failure.
  • Increases equipment lifespan.
  • Conventional fan coils are fully reliant on the central plant for hot or chilled water.
How we do it

Connected rooms.
Intelligent buildings.

PerFitTech brings PMAC equipment, room controls, wireless sensing, and operating intelligence into one coordinated system.

Explore the modernization package
Explore the connected system
One coordinated PerFitTech systemRoom Property Cloud
In every room
PMAC ceiling-mounted hybrid fan coil and heat pump unit

PMAC hybrid heat pump

Ceiling · Floor · Vertical

Room thermostatComfort + control
Door sensor
PIR motion sensor
Wireless room sensing
Property network
Wireless mesh Edge router
PoE connection
Floor switch
Hotel PMS

Check-in / check-out
Rented / unrented

Operating intelligence
On property

Local access

Control equipment.
See room status.
Analyze operating trends.

From anywhere

Cloud + remote

Monitor and control.
Retain long-term data.
Support ongoing performance.

Existing two-pipe infrastructure retainedPMAC equipment · Three configurations
01 / Equipment

Modernize the equipment.
Preserve the infrastructure.

PMAC combines a fan coil and heat pump, with ceiling, floor, and vertical configurations for your existing two-pipe building.

PerFitTech coordinates the equipment, controls, network, and delivery as one integrated solution.

02 / Room

Comfort that responds
to the room.

The thermostat connects to PMAC equipment. Door and motion sensors work with hotel check-in and rental status to guide energy use around actual room conditions.

  • Rented + occupied
  • Rented + vacant
  • Unrented + occupied
  • Unrented + vacant
03 / Local

Bring the whole
property into view.

A wireless mesh connects rooms through edge routers and floor switches to the property network. Your on-site team can control equipment, monitor room status, and analyze trends.

Support room service, troubleshoot performance, and plan preventive maintenance from one place.

04 / Remote

Stay connected.
Keep improving.

Cloud access extends monitoring, control, and updates beyond the property. Long-term operating data supports analysis, troubleshooting, and preventive maintenance.

Keep insight within reach while saving energy and extending equipment life.

Keio Plaza Hotel Tokyo exterior, from PMAC’s project record
Selected work & project proof

Keio Plaza Hotel

A building-scale decision, proven room by room.
A two-pipe building, enabled to function like a four-pipe building without an electric grid upgrade.

Explore our projects
  1. Constraint20 comfort complaints per day
  2. PilotFour rooms tested for one year
  3. ModernizationExisting two-pipe infrastructure retained
  4. Property scale1,435 rooms
More project experience

400+ hotels worldwide have implemented PMAC.

  • KCI MarriottKansas City, Missouri
  • Hyatt RegencyNew Brunswick, New Jersey
  • The Windsor SuitesPhiladelphia, Pennsylvania
  • 70 Park AvenueNew York, New York
  • The Prince KitanoNew York, New York
  • ANA InterContinentalTokyo, Japan
  • Hilton TokyoTokyo, Japan
  • Hotel New GrandYokohama, Japan
  • The Westin MiyakoKyoto, Japan

Case-study details are not a forecast for another property.

Upgrade your hotel.
Strengthen your asset.

Turn your existing two-pipe infrastructure into a more comfortable, efficient, and valuable hotel.

  • Elevate guest comfort and meet PIPs.Heating and cooling on demand, in every room.
  • Protect operating revenue.Upgrade room by room while your hotel stays open.
  • Make capital work harder.Start with high-return areas and lower long-term energy costs.

Share your hotel’s priorities, budget, and timing. We’ll define your upgrade scope and a phased plan.

Assess a property