CK40HT-30B-**+TDR + ML180UH090V48B*
About The Lennox ML14KP1-018-230
Description
The Lennox ML14KP1-018-230 is a 1.5 ton (18,000 BTU) Merit Series heat pump with a single-stage scroll compressor and R-454B refrigerant. Depending on the indoor unit, it's AHRI-rated up to 17 SEER2 and up to 7.8 HSPF2.
Key specs
- Efficiency: 14.3 to 17 SEER2 and 7.5 to 7.8 HSPF2 with our Lennox indoor units
- Defrost: time and temperature control, every 30, 60 or 90 minutes of run time below 42°F coil temperature
- Refrigerant: R-454B, factory charged with 5 lb for a 30-foot line set
- Sound rating: 74 dBA
- Line connections: 3/8-inch liquid and 3/4-inch suction, sweat
Reading the model number
ML is Lennox's Merit line, and 14 is the nominal SEER2 class for the ML14KP1 series. K is R-454B, P is a heat pump outdoor unit, 1 is the single-stage compressor, 018 is 1.5 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 ML14KP1-018-230A**.
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 a CK40HT-30B-71 coil on an ML180UH090V48B furnace, at 17 SEER2 and 7.5 HSPF2. For heating, a CK40HT-30B-71 coil on an SL280UH090V48B furnace reaches 7.8 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.
It cools down to 45°F outdoor air without extra controls, or 30°F with Lennox's optional low ambient kit.
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 ML14KP1-018-230 17 SEER2 18,000 BTU Heat Pump
AHRI-matched equipment that works with this unit. Add a full system or individual pieces.
Filter matches
Coil
CK40HT-30B-**+TDR + SL280UH090V36B*
AHRI number 215685661
CK40HT-30B-**+TDR + SL280UH090V48B*
AHRI number 215685662
CK40HT-30B-**+TDR + ML180UH070XE36B*
AHRI number 215685650
CK40HT-30B-**+TDR + ML193UH045XE36B*
AHRI number 215685653
CK40HT-30B-**+TDR + ML193UH070XE36B*
AHRI number 215685654
CK40HT-30B-**+TDR + ML180UH070E36B*
AHRI number 215685647
CK40HT-30B-**+TDR + ML180UH070V36B*
AHRI number 215685648
CK40HT-30B-**+TDR + ML180UH070V48B*
AHRI number 215685649
CK40HT-30A-**+TDR + ML180UH070E36A*
AHRI number 215685629
CK40HT-30A-**+TDR + ML180UH070V36A*
AHRI number 215685630
CK40HT-30A-**+TDR + ML180UH070XE36A*
AHRI number 215685631
CK40HT-30A-**+TDR + SL280UH060NV36A*
AHRI number 215685632
CK40HT-30A-**+TDR + EL280UH070E36A*
AHRI number 215685623
CK40HT-30A-**+TDR + EL280UH070XE36A*
AHRI number 215685624
CK40HT-30A-**+TDR + ML180UH030V36A*
AHRI number 215685625
CK40HT-30A-**+TDR + ML180UH045E36A*
AHRI number 215685626
CK40HT-30A-**+TDR + ML180UH045XE36A*
AHRI number 215685627
CK40HT-30B-**+TDR + EL297UH045XE36B*
AHRI number 215685643
Furnace
EL297UH045XE36B*
SKU: EL297UH045XE36B
CK40HT-24B-**+TDR + ML180UH090V48B*
AHRI number 215685604
Coil
CK40HT-24B-**+TDR
SKU: CK40HT-24B-71
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No AHRI-matched systems for this filter.
Specifications
| Specification | Value |
|---|---|
| Manufacturer | Lennox |
| SKU | ML14KP1-018-230 |
| Product type | Heat Pump |
| SEER2 (up to) | 17 |
| Capacity (tons) | 1.5 |
| Capacity (BTU) | 18,000 |
| HSPF2 | 7.8 |
| Voltage | 208/230 |
| Phase | 1 |
| Frequency (Hz) | 60 |
| Electrical | 208/230-1-60 |
| MCA | 9.7 |
| MOCP | 15 |
| Height (in) | 43.25 |
| Width (in) | 28.25 |
| Depth (in) | 28.25 |
| Shipping weight (lb) | 185 |
| Refrigerant | R-454B |
| Stages | Single |
| Also listed as | ML14KP1-018 |
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. |




















