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Model LAHP48 Air to Water Heat Pump — Installation, Operation & Maintenance Manual
Section 3: Specications & Ratings
Model LAHP48 COP
Heating Capacity (47°F/8°C Ambient temp. 120°F/50°C Supply Water) 66,480 BTU/h (18.9kW) 3.26
Heating Capacity (17°F/-8°C Ambient temp. 120°F/50°C Supply Water) 46,440 BTU/h (13.6kW) 2.35
Heating Capacity (5°F/-15°C Ambient temp. 120°F/50°C Supply Water) 42,240 BTU/h (12.4kW) 2.12
Cooling Capacity (95°F/35°C Ambient temp. 44°F/6.7°C Supply Water) 40,000 BTU/h (11.7kW) 2.43
Volts 230V/1ph/60Hz
Minimum water supply temperature* 42°F (5.5°C)
Maximum water supply temperature* 140°F (60°C)
Minimum operating ambient temperature -8°F (-22°C)
Maximum operating ambient temperature 105°F (40°C)
Minimum water flow 10 GPM (37.9 l/min)
Recommended water flow 11 GPM (41.6 l/min)
Pressure drop at recommended flow 17.1 ft/7.4 PSI (35.8 kPa)
Heating current 31A
Cooling Current 23.5A
Noise level at max fan speed (Heating or Cooling) 62 dB (A)
Compressor EVI Scroll
Installed weight 386 lbs (175 kg)
*Refer to section 2 for default (factory set) control setpoints.
LAHP48
Heating Cooling
Water
Temp °F
Ambient
Temp °F
Capacity
BTU/hr
Water DP
ft WC
Watts COP
Water
Temp °F
Ambient
Temp °F
Capacity
BTU/hr
Water DP
ft WC
Watts COP
110
-5 37,500 14.6 3,880 2.30
42
70 41,100 15.0 4,298 2.80
17 44,800 14.6 3,970 2.70 82 39,950 15.0 4,414 2.65
47 60,580 14.6 4,263 3.75 95 38,800 15.0 4,897 2.32
120
-5 38,500 14.6 4,513 2.00
44
70 42,500 15.0 4,190 2.97
17 46,440 14.6 5,790 2.35 82 41,250 15.0 4,238 2.85
47 66,480 14.6 5,963 3.26 95 40,000 15.0 4,820 2.43
130
-5 40,425 14.6 5,249 1.86
47
70 44,600 15.0 4,240 3.08
17 48,762 14.6 5,371 2.18 82 43,200 15.0 4,274 2.96
47 69,804 14.6 5,768 3.04 95 41,800 15.0 4,708 2.60
All data based upon pure water @ 11.0 GPM