CK40HT-42B-**+TDR + ML180UH070V36B*
About The Lennox EL16KP1-042-230
Description
The Lennox EL16KP1-042-230 is a 3.5 ton (42,000 BTU) Elite Series heat pump with a single-stage scroll compressor and R-454B refrigerant. Depending on the indoor unit, it's AHRI-rated up to 16 SEER2 and up to 8.2 HSPF2.
Key specs
- Efficiency: 14.3 to 15.5 SEER2 and 7.5 to 8.2 HSPF2 with our Lennox indoor units
- Defrost: demand defrost, which runs a cycle only when heating performance drops
- Refrigerant: R-454B, factory charged with 8 lb 5 oz for a 15-foot line set
- Sound rating: 72 dBA
- Line connections: 3/8-inch liquid and 7/8-inch suction, sweat
Reading the model number
EL is Lennox's Elite line, and 16 is the nominal SEER2 class for the EL16KP1 series. K is R-454B, P is a heat pump outdoor unit, 1 is the single-stage compressor, 042 is 3.5 tons, and 230 is 208/230V single-phase. The characters after 230 on the unit label are Lennox revision codes. The AHRI Directory lists it as EL16KP1-042-230A**.
What it pairs with
The AHRI Directory lists it with Lennox CBK45UHET, CBK45UHPT, CBK45UHVT, and CBK47UHET air handlers, and with CK40CT, CK40DT, CK40HT, and CK40UT coils on Lennox gas furnaces for dual fuel. The best match we carry is the CBK47UHET-042-230-71 air handler, at 15.5 SEER2 and 8.2 HSPF2.
R-454B systems need a refrigerant detection sensor at the indoor unit, so confirm your coil or air handler has one.
Sizing and fit
With a gas furnace, you need a dual-fuel thermostat or a zoning system with dual-fuel control. Size it from a Manual J load calculation, checking heat output at your local winter design temperature.
Warranty and registration
HVAC USA is an authorized Lennox reseller, and everything we sell is new factory equipment. Your full Lennox warranty applies when a licensed, manufacturer-certified contractor installs your system and registers it within 60 days.
Shipping and help
This item ships free from our Kansas City warehouse to the lower 48 states and D.C., and so does the rest of your order, except to Washington, Oregon, and Idaho, where you pay the shipping rate shown at checkout. For Alaska, Hawaii, Puerto Rico, other U.S. territories, or an APO or FPO address, call or text us for a quote. Call (913) 364-0070, Monday to Friday, 9am to 5pm CST, and we'll help you confirm sizing and an AHRI-matched pairing before you order.
Paired With — AHRI-matched systems for Lennox EL16KP1-042-230 16.0 SEER2 42,000 BTU Heat Pump
AHRI-matched equipment that works with this unit. Add a full system or individual pieces.
Filter matches
Coil
CK40HT-42B-**+TDR + ML180UH070V48B*
AHRI number 215740271
CK40HT-42B-**+TDR + ML180UH090E48B*
AHRI number 215740272
CK40HT-42B-**+TDR + ML180UH090V48B*
AHRI number 215740273
CK40HT-42B-**+TDR + ML180UH090XE48B*
AHRI number 215740274
CK40HT-42B-**+TDR + SL280UH080NV48B*
AHRI number 215740278
CK40HT-42B-**+TDR + SL280UH090V36B*
AHRI number 215740279
CK40HT-42B-**+TDR + SL280UH090V48B*
AHRI number 215740280
CK40HT-42B-**+TDR + EL297UH070XV36B*
AHRI number 215740269
CK40HT-42B-**+TDR + ML296UH045XV36B*
AHRI number 215740276
CK40HT-42B-**+TDR + ML296UH070XV36B*
AHRI number 215740277
CK40[C,U]T-48C-**+TDR + EL280UH110E48C*
AHRI number 215740164
CK40[C,U]T-48C-**+TDR + EL280UH110E60C*
AHRI number 215740165
CK40[C,U]T-48C-**+TDR + EL280UH110XE60C*
AHRI number 215740166
CK40[C,U]T-48C-**+TDR + ML180UH090E60C*
AHRI number 215740174
CK40[C,U]T-48C-**+TDR + ML180UH110E60C*
AHRI number 215740175
CK40[C,U]T-48C-**+TDR + ML180UH110V60C*
AHRI number 215740176
CK40HT-42B-**+TDR + EL280UH090E36B*
AHRI number 215740265
CK40HT-42B-**+TDR + EL280UH090E48B*
AHRI number 215740266
Furnace
EL280UH090E48B*
SKU: EL280UH090E48B
CK40HT-42B-**+TDR + EL280UH090XE48B*
AHRI number 215740267
Furnace
EL280UH090XE48B*
SKU: EL280UH090XE48B
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Specifications
| Specification | Value |
|---|---|
| Manufacturer | Lennox |
| SKU | EL16KP1-042-230 |
| Product type | Heat Pump |
| SEER2 (up to) | 16 |
| Capacity (tons) | 3.5 |
| Capacity (BTU) | 42,000 |
| HSPF2 | 8.2 |
| Voltage | 208/230 |
| Phase | 1 |
| Frequency (Hz) | 60 |
| Electrical | 208/230-1-60 |
| MCA | 22.3 |
| MOCP | 35 |
| Height (in) | 39 |
| Width (in) | 35.5 |
| Depth (in) | 39.5 |
| Shipping weight (lb) | 285 |
| Refrigerant | R-454B |
| Stages | Single |
| Also listed as | EL16KP1-042 |
Ordering
| Detail | Value |
|---|---|
| Lead time | Ships from our Kansas City warehouse. Most in-stock items leave in 1 to 3 business days; special-order equipment is confirmed by phone before ship. |
| Freight note | Ships residential freight (curbside) with liftgate delivery added automatically. Pickup available at our Kansas City warehouse. Call/Text (913) 364-0070 for scheduling or commercial delivery. |




















