Whole-House Dehumidifiers
Ducted whole-house dehumidifiers in four models, 120V, R-32, with installation options for return-to-return, return-to-supply and dedicated ducting.
Refrigerant:R-32
Specifications
| Parameter | Value |
|---|---|
| Models | PA-HD70R32, PA-WH70R32, PA-HD100R32, PA-WH95R32 |
| Power supply | 120V / 60Hz |
| Refrigerant | R-32 |
| Display | LED |
Values as published in the 2026 product catalogue. Ask us for the model-level submittal sheet before specifying.
Features
- ✓Four installation configurations: main return to main return, main return to main supply, dedicated return to main supply or A/C return, and inlet/outlet ducted to dedicated grilles
Overview
Ducted whole-house dehumidifiers that work with the air conditioning rather than in a single room. Four models — PA-HD70R32, PA-WH70R32, PA-HD100R32 and PA-WH95R32 — run on 120V / 60Hz with R-32 refrigerant and an LED display. They target basements, cottage and coastal properties, and any house where the A/C short-cycles and never brings humidity down on its own.
Because these units are ducted, they can be installed four ways: main return to main return, main return to main supply, dedicated return to main supply or to the A/C return, and inlet and outlet ducted to dedicated grilles. That choice usually decides which model fits, more than the capacity table does.
Where it is used
- Basements and crawl spaces with persistent summer damp
- Homes where an oversized A/C short-cycles and leaves humidity high
- Cottage and coastal properties with high outdoor humidity
- Whole-house humidity control where portable units cannot keep up
Selection & installation notes
- 01
Decide the duct configuration first. Main return to main return is the layout to use where no supply duct is available; the other options need access to the supply plenum or dedicated grille locations.
- 02
Catalogue capacities are quoted at three rating points — 86°F / 80% RH, 80°F / 60% RH and 90°F / 90% RH. Across the four models the listed figures span 70–103 PPD at 80°F / 60% RH and 170–315 CFM. Confirm the per-model figures on the submittal sheet.
- 03
Plan the drain — these units produce condensate continuously and need a gravity drain or a pump with a safe overflow path — and interlock the unit with the air handler fan.
- 04
R-32 charge and handling follow the nameplate and manual for the model supplied.
Common questions
How is this different from a portable dehumidifier?
It is ducted into the existing system, so it treats the whole house instead of one room, drains continuously and does not need emptying. It also runs when the A/C is off, which is most of the shoulder season.
Which of the four models do I need?
Start from the duct configuration and the load at your design conditions, not from the model number. The four models differ in capacity and airflow; the per-model figures at the three rating points are on the submittal sheet.
Can it be added to an existing furnace and A/C?
Yes — that is the usual application. Main return to main return is the recommended layout when no supply duct is available, which is common in retrofits.