Whole-home capacity and installation

Santa Fe Ultra V100, V125, V155 and V205: capacity and installation choices

Santa Fe’s current Ultra V100, V125 and V155 share one manual family; the higher-capacity Ultra V205 is a separate, fixed ducted model with its own TS-2125 manual. All four use bucketless gravity drainage as the base water route, but the V205’s larger cabinet, duct details and conflicting pressure/drain instructions make it more than a fourth rating in the older manual family. Start with a real building load and installer-designed air and drain plans, then compare the exact part numbers.

Santa Fe ratings are shown with their stated test conditions; EPA Appendix X1 capacity/IEF values are separate current records for exact part numbers. The V100/V125/V155 share TS-2157 Rev H (04/26), while the V205 has its own TS-2125 Rev C manual and TS-2116 Rev B data sheet. The V205 page, manual and data-sheet raw routes returned HTTP 403 to local retrieval; their first-party rendered observations are retained separately, and those blocked responses are not represented as saved product HTML or PDF files.

Capacity is a selection input, not a square-foot guarantee

Santa Fe lists 100, 125 and 155 pints per day at 80°F and 60% relative humidity. At the cooler 73°F/60% RH point, the same page series lists 82, 101 and 128 pints. The difference is a useful reminder: nameplate capacity is tied to test conditions, and actual removal depends on the inlet conditions, duct resistance and operation. The company’s area suggestions—2,300, 3,000 and 3,500 square feet—are screening guidance based on a ten-foot ceiling, not an HVAC load calculation or a promise that every room receives dry air.

Each current EPA record for parts 4047100, 4047200 and 4047300 identifies a certified Santa Fe Ultra V model and provides a distinct Appendix X1 capacity and IEF. Those are better comparisons within the ENERGY STAR test method than using the model names as efficiency ranks. However, the current EPA rows and the April 2026 TS-2157 manual’s registration table disagree: the manual lists V100 at 82/2.63, V125 at 101/2.45 and V155 at 128/2.9, whereas EPA lists 85.62/2.45, 102.69/2.63 and 127.51/3.26 for Appendix X1 capacity/IEF. Manufacturer data sheets also use a separately named Energy Factor at different test points. Keep the method and source beside each number; do not average or silently cross-substitute them. Our model matcher uses current exact EPA values for ENERGY STAR status/IEF and preserves the manufacturer-page ratings for the 80°F/73°F capacity questions.

What the V100, V125 and V155 have in common

All three share a nominal 14.35-by-24-by-39.25-inch listed cabinet, MERV-13 filtration, onboard digital control and a 24-volt control terminal. The common manual describes a dedicated central return and a supply connection to the HVAC supply with a backdraft damper. It calls for at least 10-inch round duct through 25 feet and at least 12-inch duct for longer runs; total static must remain below the manual’s 0.5-inch-water-gauge ceiling. The manual also calls for six inches of clearance for airflow and 15 inches on either side for filter removal. Those are installation constraints, not optional refinements. The page labels dimensions “without collars,” while technical-sheet notes say dimensions and weight are with collars; use the figures for comparison, then measure the actual collar/service envelope.

The standard water plan is bucketless gravity drainage through a 3/4-inch male NPT/PVC assembly. The manual specifies roughly a quarter-inch slope per foot and requires the outlet/drain arrangement to allow the specified 6.75-inch elevation for the trap. Over finished space it calls for a secondary pan and float-switch protection; the float switch is separate. None of these base configurations includes a bucket or built-in pump. Santa Fe lists an optional external pump kit, but that is not an integral-pump plan and the exact materials reviewed do not give a numeric V-series lift ceiling. If your drain is uphill, do not answer a pump-lift need “yes” based on the accessory listing alone.

The Ultra V205 is its own installation decision

The V205 is also fixed and bucketless, but it is a different manual/specification set rather than a larger V100/V125/V155. TS-2125 describes a 10-inch central return and 10-inch supply into the HVAC supply with a backdraft damper, plus an optional 8-inch outside-air inlet. Its manual warns against total static pressure at or above 0.5 inch water column even though TS-2116 tables blower airflow through 0.6; do not treat that test point as permission to exceed the manual warning. The outside-air rate needs a building-specific ventilation calculation.

The V205 gravity instructions also disagree within the manual: one passage gives a 1-inch drop per 10 feet, while the drain diagram shows 1/4 inch per foot. The TS-2116 sheet says its 26.75-by-20.75-by-38-inch dimensions include collars, while the product page labels the same dimensions without collars. The manual and page also list different filter part numbers, and the page and manual differ by one degree in their upper operating limit. Keep these details unresolved until Santa Fe or the installer confirms the applicable instruction for the actual unit. The included MERV-13 filter and 148-pound weight are useful service and delivery facts, not a medical filtration claim or safe-lift recommendation.

What changes as capacity rises?

V100 and V125 list the same blower and optional ventilation airflows: 385/350/305/260 CFM for the blower and 150/135/120/100 CFM through the optional intake at 0/.2/.4/.6 inches water column. V155 increases those figures to 435/395/360/322 and 170/154/140/125 CFM. Its page also identifies ECCO multi-coil technology. V205’s separate TS-2116 sheet lists higher airflow of 550/515/470/430 CFM and optional ventilation airflow of 215/200/183/167 CFM. That difference comes with a 148-pound cabinet and different documented pressure/drain details, not a promise that the larger unit is the better fit. Extra output can help a planned design with a greater load or distribution need, but it does not overcome undersized ductwork, high static pressure or closed-off rooms. Choose among models only after calculating the load and confirming the actual duct plan.

Answer the installation questions before comparing prices

Use the questionnaire’s HVAC-ducted choice only if a fixed return/supply installation is acceptable. The optional 8-inch outdoor-air intake is a separate capability; its airflow needs to be calculated for the household and paired with appropriate damper/control equipment. All models share the standard gravity route, so a bucketless-gravity answer fits only when a lower drain, slope, trap and overflow plan can be built. A required built-in pump, collection bucket, app control or numeric pump lift rules this family out based on current exact documentation. The current EPA record is useful when certification or IEF is essential; unknown values on another model should never be treated as a pass.

The V100 is the lightest and smallest-capacity option at 101 pounds, with 620 watts listed at 73°F/60% RH. V125 weighs 104 pounds and lists 800 watts under that condition. V155 is 112 pounds and lists 810 watts. The manual calls for a grounded 120-volt supply and at least a 15-amp circuit; the model sheets list 115 volts and model-specific current at 104°F/36% RH. Confirm the unit nameplate and local electrical requirements with the qualified installer. No exact dBA value is published in these reviewed sources. R2 cabinet insulation is not a measured sound guarantee, and the MERV-13 filter is not a medical claim.

These are whole-home installation candidates, not alternatives to every portable dehumidifier. Santa Fe’s Compact70, Advance Dry110, Oasis105 and Classic are separate stand-alone models with different layouts and drain arrangements. Ultra70, UltraMD33 and Ultra98 are also separate model/manual decisions, not V-series variants. Compare exact part numbers and the complete installation plan before assuming the most pints or broadest area label is the right fit.