Product overview
MRCOOL Universal 36,000 BTU 3 Ton 18 SEER2 Central Heat Pump Air Conditioner System
The MRCOOL® Universal® Series 36K DC Inverter Heat Pump System is built to deliver dependable, high-efficiency heating and cooling—even in extreme outdoor conditions. Whether you're facing frigid winters or sweltering summer heat, this powerful unit ensures consistent indoor comfort without compromise. With an impressive 18 SEER2 rating, it offers energy-saving performance that helps reduce utility costs while keeping your home comfortable year-round.
The MRCOOL® Universal® Series 36K Heat Pump System was designed with flexibility in mind, the 36K Air Handler supports upflow, downflow, and horizontal installations. Its slim profile makes it easy to install in a variety of spaces, including attics, closets, and crawlspaces. For added convenience, it’s compatible with the MRCOOL® NO-VAC® Quick Connect® line set, which eliminates the need for vacuuming or flaring—streamlining installation and saving time.
To enhance performance during colder months, the unit also supports optional Universal® Series Heat Kits. These kits provide additional heating capacity and emergency backup heat when needed, boosting efficiency in extreme climates. At the heart of the air handler is an M-shaped evaporator coil with a large surface area that improves airflow and maximizes heat exchange.
Backed by a 10-year parts warranty and a 2-year limited labor warranty, the MRCOOL® Universal® 36K System is a smart, dependable choice for homeowners looking to upgrade to efficient, long-lasting HVAC technology.
Condenser Specifications:
BRAND NAME |
MRCOOL |
SERIES |
Universal R-454B |
MODEL |
UHP18036-O |
EQUIPMENT TYPE |
DC Inverter Heat Pump Condenser |
TONNAGE |
3 |
RATED COOLING CAPACITY (BTU/H) |
36,000 |
MIN/MAX COOLING CAPACITY (BTU/H) |
12,100 / 43,000 |
RATED HEATING CAPACITY @ 47 F (BTU/H) |
37,000 |
MIN/MAX HEATING CAPACITY @ 47 F (BTU/H) |
11,400 / 47,000 |
RATED HEATING CAPACITY @ 17 F (BTU/H) |
31,000 |
RATED HEATING CAPACITY @ 5 F (BTU/H) |
37,400 |
COP @ 5 F |
1.9 |
SEER2 |
18.0 |
EER2 |
12 |
HSPF2-4 |
10.0 |
HSPF2-5 |
8.2 |
VOLTAGE / PHASE / FREQUENCY |
208/230 V / 1 / 60 Hz |
MIN CIRCUIT AMPACITY (A) |
29 |
MAX FUSE / BREAKER (A) |
30 |
REFRIGERANT |
R-454B |
FACTORY REFRIGERANT CHARGE (OZ) |
126.99 |
COMPRESSOR TYPE |
Twin-rotary |
COMPRESSOR MODEL |
EKPQ420D1UMUA |
OUTDOOR AIRFLOW (CFM) |
3,001.9 |
OUTDOOR SOUND LEVEL (DBA) |
63 |
COOLING OPERATING RANGE |
-22 to 122 F |
HEATING OPERATING RANGE |
-22 to 75 F |
LIQUID / GAS LINE SIZE |
3/8 in / 3/4 in |
MAX PIPING LENGTH |
246 ft |
MAX HEIGHT DIFFERENCE |
98.4 ft |
FACTORY PRECHARGED LENGTH |
24.6 ft |
ADDITIONAL REFRIGERANT |
0.7 oz/ft |
CONNECTION METHOD |
Flare or Quick Connect |
NET DIMENSIONS (W X D X H) |
38.58 x 16.34 x 38.39 in |
PACKAGED DIMENSIONS (W X D X H) |
45.08 x 19.68 x 42.52 in |
NET / GROSS WEIGHT |
204.15 / 235.23 lb |
ENERGY STAR V6.1 CERTIFIED |
Yes |
ENERGY STAR COLD CLIMATE CERTIFIED |
Yes |
AHRI CERTIFIED |
Yes |
BASE PARTS WARRANTY |
10 years |
BASE LIMITED LABOR WARRANTY |
2 years with licensed professional installation |
Air Handler Specifications:
BRAND NAME |
MRCOOL |
SERIES |
Universal R-454B |
MODEL |
UAH18036-O |
EQUIPMENT TYPE |
Multi-Position Air Handler |
TONNAGE |
3 |
INSTALLATION POSITIONS |
Upflow, downflow, horizontal left or right |
AIRFLOW (TURBO / HIGH / MEDIUM / LOW / SILENT) |
1,236.1 / 1,147.8 / 1,059.5 / 971.2 / N/A CFM |
EXTERNAL STATIC PRESSURE |
0-1.0 in. w.g. |
SOUND LEVEL (TURBO / HIGH / MEDIUM / LOW / SILENT) |
48 / 46.5 / 45 / 33 / N/A dBA |
VOLTAGE / PHASE / FREQUENCY |
115/208/230 V / 1 / 60 Hz |
MIN CIRCUIT AMPACITY 115 V / 208-230 V (A) |
8 / 6 |
MAX FUSE / BREAKER (A) |
15 |
REFRIGERANT |
R-454B |
METERING DEVICE |
Electronic expansion valve (EXV) |
COIL |
M-shaped all-aluminum coil |
OPTIONAL HEAT KITS |
5 / 8 / 10 / 15 / 20 kW |
NET DIMENSIONS (W X D X H) |
17.52 x 21.50 x 53.98 in |
PACKAGED DIMENSIONS (W X D X H) |
57.09 x 31.10 x 20.47 in |
NET / GROSS WEIGHT |
149.25 / 182.10 lb |
BASE PARTS WARRANTY |
10 years |
BASE LIMITED LABOR WARRANTY |
2 years with licensed professional installation |
Product Documents:
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