950-0289revB - 24 - July 22, 2022
Technical Specifications for DUAL ZONE Outdoor Unit
Model Number
246-0600 MZ18H424ZMO
Rated Voltage & Frequency and Phase
208-230V / 60Hz / 1PH
Min. - Max. Operating Voltage
187 - 253 VAC
Rated Input Current of the Power Conversion Equipment
13
Min. Circuit Ampacity (A)
18
Circuit Breaker Size (A)
25
Working Temperature Range (°F)
Cooling: -13 to 122; Heating: -13 to 86
Low Ambient Cooling Function
Yes
Sound Power Level dB(A)
58.5
Resistance Class
IPX4
Cooling
Capacity Invert Range (Btu/h)
18000 (5650~22000)
Cooling Power Input (W)
1,355
Cooling Current Input (A)
6.2
EER (Btu/h/W)
13.3
SEER
21.5
Heating @ 47 °F
Capacity Invert Range (Btu/h)
19000 (5050~24400)
Heating Power Input (W)
1,420
Heating Current Input (A)
6.3
COP (W/W)
3.92
HSPF4
10.8
HSPF5
8.5
Heating @ 5 °F
Rated Capacity (Btu/h)
12400
COP (W/W)
1.75
Fan Motor
Fan Type
Axial-flow
Fan Motor Type / Model
DC Motor / ZKFN-80-8-3
Motor Insulation Class
E
Input (W)
88
Fan Speed (RPM)
750/600/500
Outdoor Fan
Fan Blade Diameter / Height (in)
21.06 / 5.24
Max. Air Flow Volume of Outdoor Unit (CFM)
2,129
Compressor
Model
KTN150D30UFZA
TYPE
Rotary
Brand
GMCC
Capacity (Btu/h)
16139
Input (W)
1,250
Crankcase Heater Input (W)
20
Oil Type / Charge Volume (oz.)
ESTER OIL VG74 / 15.22
Overload Protector
/
Condenser
Number of Rows
2
Fin Pitch (in)
0.051
Fin Type
Hydrophilic Aluminum
Coil Length x Height x Width (in)
35.43 x 23.98 x 0.87 +34.06 x 23.98 x 0.87
Number of circuits
6
Defrosting Method
Automatic Defrosting
Chassis Electrical Heater Power Input (W)
150
Dimensions &
Weight
Unit Dimensions (W x D x H) (in)
35.04 x 13.46 x 26.50
Packing Dimensions (W x D x H) (in)
40.55 x 17.24 x 29.53
Net / Gross Weight (lb)
100.31 / 109.13
Connection
Flare Liquid line
2 x 1/4"
Flare Suction line
2 x 3/8" [*1]
Service Port Fitting
1/2" - 20 UNF
Max. drive IDU Number
2
High Pressure (psi)
550
Low Pressure (psi)
340
Design Length (ft)
49.2 (total) [*2]
Max Line Set Vertical Height
(between outdoor and indoor unit) (ft)
49.2
Max Line Set Vertical Height
(between indoor and indoor unit) (ft)
32.8
Max Line Set Length (ft)
82 (for the farthest indoor unit)
Max Line Set Length (ft)
131 (total)
Charge over Design Length on 1/4" liquid pipe [*2]
(oz. / ft)
0.161
Refrigerant / Charge
R410A / 65.26 oz.
Wiring (Indoor to Outdoor)
4C- 16 AWG
Wiring (Outdoor unit to Power Disconnect)
3C- 12 AWG
*1. 12,000 BTU indoor units use a 1/2" to 3/8" adapter joint that is included with the unit.
*2. When the total length of liquid line is over 49 ft, the additional refrigerant charge is required.
NOTE: Outdoor unit must connect to a minimum of TWO indoor units.
