Photo may vary slightly — verify by part number before ordering.33P596B01 — WaterFurnace TXV-2-TON-NON-ADJ-BLD P1E-2.5-ZCP250P-B15
WaterFurnace has discontinued part 33P596B01.
Replaced by: 33P605-10
Order replacement 33P605-10 — contact us →Overview
WaterFurnace 33P596B01 — TXV-2-TON-NON-ADJ-BLD P1E-2.5-ZCP250P-B15. An expansion valve meters liquid refrigerant into the evaporator; a TXV regulates flow by superheat and an EEV is positioned electronically.
Discontinued — replaced by 33P605-10. WaterFurnace no longer supplies 33P596B01; order the direct factory replacement 33P605-10 instead.
Fits these WaterFurnace units: E035BR111NBDSSA, E036TR001NBDSSA, E036TR111NBDSSA (3 models; the Fits These Units list below is complete). These are the units we've confirmed — not necessarily the only ones. Send us the model and serial number if yours isn't listed.
Genuine WaterFurnace OEM part — not an aftermarket substitute.
What is WaterFurnace 33P596B01?
It is a genuine WaterFurnace OEM expansion valve, listed by WaterFurnace as “TXV-2-TON-NON-ADJ-BLD P1E-2.5-ZCP250P-B15”.
Which WaterFurnace units use 33P596B01?
Confirmed fits include E035BR111NBDSSA, E036TR001NBDSSA, E036TR111NBDSSA. The Fits These Units list on this page shows all 3 confirmed models.
Is 33P596B01 still available?
Discontinued — replaced by 33P605-10. WaterFurnace no longer supplies 33P596B01; order the direct factory replacement 33P605-10 instead.
What are the signs an expansion valve has failed?
A failing expansion valve may starve or flood the evaporator, cause poor superheat control, low capacity or erratic pressures.
Is 33P596B01 a genuine WaterFurnace part?
Yes. 33P596B01 is WaterFurnace's own part number for this item, and this is a genuine OEM part, not an aftermarket substitute. Search or order by this number.
How do I confirm 33P596B01 fits my unit?
Match the part number on your original part, or check your unit's model against the Fits These Units list on this page. Not sure? Send us the model and serial number and we'll confirm before you order.
Fits These Units
Confirmed to fit the WaterFurnace units below — and these are not the only models this part fits. Contact us for the entire compatibility list, or if you don't see your unit, send the model and serial and we'll confirm before you buy.
- E035BR111NBDSSA
- E036TR001NBDSSA
- E036TR111NBDSSA
Specifications
| Part Type | Expansion valve |
|---|---|
| Nominal Capacity | 2 ton |
| Qty per Unit | 1 |
| Condition | New — Factory OEM |
| Availability | Discontinued |
Ask the Parts Desk
Not sure this fits? Need more than what's in stock? Send the model and serial from the unit's data plate — a real person reads it and confirms before you order.
Common Questions
Is the stock number on this page real?
Yes — it's the live count from our own shelf, not an availability estimate. If it says 1, that's how many are physically here. When it hits zero, this page says so.
Is this a genuine WaterFurnace part, or aftermarket?
Genuine WaterFurnace OEM equipment sourced through WaterFurnace's authorized parts program — not an aftermarket substitute.
How do I confirm this fits my unit?
Match part number 33P596B01 to your unit's parts diagram. If unsure, send us your model and serial number and we'll verify before you order.
What's the warranty on this part?
Warranty terms vary by manufacturer. Contact us with your order number for details specific to this part.
How fast does this ship?
In-stock items ship the same business day on orders placed before 1pm ET, Monday–Friday. Standard ground delivers to most of the continental US in 2–5 business days. Ships via UPS/FedEx Ground, or truck freight for oversized items. Free standard shipping on US orders of $50 or more.
Does everything ship UPS or FedEx Ground?
Most orders ship UPS or FedEx Ground. A small number of large or heavy parts across the catalog ship by truck freight instead, and we reach out to arrange a delivery window before those orders leave the warehouse. Oversized items that ship by truck freight are also covered by free standard shipping on orders of $50 or more.
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