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6.2. Outdoor Unit Specications
MLB SPECIFICATIONS SINGLE ZONE | 1.5 - 4 TON
Outdoor Unit Model No. MLB018S4S MLB024S4S MLB036S4S MLB048S4S
Nominal Size - Tons 1.5 2 3 4
Ambient Temperature Operating
Range - °F
Cooling –22 - 122 –22 - 122 –22 - 122 –22 - 122
Heating –22 - 86 –22 - 86 –22 - 86 –22 - 86
Sound Data (dBA) Cooling 59 62 63 65
Heating 59 62 63 65
Refrigerant Charge furnished (R-410A) 4 lbs. 1 oz. 5 lbs. 12 oz. 16 lbs. 0 oz. 16 lbs. 0 oz.
Maximum line length with furnished charge - ft. 25 25 25 25
Additional charge required per ft. - oz. 0.16 0.32 0.32 0.32
Compressor No. and Type (1) Rotary (1) Rotary Twin-Rotary Twin-Rotary
Refrigerant oil type VG74 VG74 Ester Oil VG74 POE VG74
Refrigerant oil charge - oz. 21 21 49.4 49.4
Connections - in. Liquid/Gas pipe (are) 1/4 / 1/2 3/8 / 5/8 3/8 / 5/8 3/8 / 5/8
Maximum refrigerant pipe length - ft. 98 164 213 213
Max. dierence in level of indoor unit - ft. 66 82 98 98
Outdoor
Fan
(No.) Diameter - in. (1) 19 (1) 22 (2) 22 (2) 22
Total air volume - cfm 1355 2355 4470 4470
rpm 810/720/1150 1150/1050/900/850 900/850/800/750 900/850/800/750
Outdoor Coil Number of rows 2 2 2 2
Fins per inch 18 19 18 18
Fin type Hydrophilic aluminum
Tube outside diameter - in. 3/8 3/8 3/8 3/8
Tube type Ried copper tubing
Net face area - ft.
2
5.19 8.16 6.43+6.97 6.43+6.97
Design Pressure PSIG 550/340 550/340 550/340 550/340
Shipping Data Net/Shipping weight (lbs.) 101 / 108 135 / 145 220 / 248 227 / 256
ELECTRICAL DATA
Electrical Characteristics - 60 Hz - 1 Phase 208/230V 208/230V 208/230V 208/230V
1
Maximum Overcurrent Protection (MOCP) amps 25 35 50 50
2
Minimum circuit ampacity (MCA) 16 25 41 42
Outdoor Fan Motor Output - W 80 120 (2) 85 (2) 85
NOTE - Extremes of operating range are plus and minus 10% of line voltage.
1
HACR type circuit breaker or fuse.
2
Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements.
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