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Model
LAHP48
Air to Water Heat Pump — Installation, Operation & Maintenance Manual
Section 3: Specifications & 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
