| Model | AT75WH | AT115WH | AT130WH | AT150WH Heat Only | AT150WH Heat & Cool |
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| Cooling Performance | | Cooling Condition (Water/Air/RH)* | N/A | N/A | N/A | N/A | 100/80/63 | | Rejected BTU/KW* | N/A | N/A | N/A | N/A | 75,000/22 | | EER (Energy Efficiency Ratio)* | N/A | N/A | N/A | N/A | 12 | | BTUs (Water Temp/Ambient Air/Relative Humidity) | | 80/80/80 | 72,000 | 110,000 | 128,000 | 138,000 | 138,000 | | 80/80/63 | 67,000 | 106,000 | 123,000 | 129,000 | 129,000 | | 80/50/63 | 46,000 | 75,000 | 82,000 | 88,000 | 88,000 | | Coefficient of Performance (Water Temp/Ambient Air/Relative Humidity) | | 80/80/80 | 5.4 | 5.8 | 5.7 | 6.2 | 6.2 | | 80/80/63 | 5.3 | 5.6 | 5.4 | 5.8 | 5.8 | | 80/50/63 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | | Refrigerant | R410A | R410A | R410A | R410A | R410A | | Compressor | Reciprocating | Scroll | Scroll | Scroll | Scroll | | Heat Exchanger | Rifled Titanium – Tube in Tube | Thermolink – Tube In Shell | Thermolink – Tube In Shell | Thermolink – Tube In Shell | Thermolink – Tube In Shell | | Electrical | | KW Input | 3.8 | 4.9 | 5.8 | 6.4 | 6.4 | | Voltage/Hz/Phase | 208-230V/60hz/1 | 208-230V/60hz/1 | 208-230V/60hz/1 | 208-230V/60hz/1 | 208-230V/60hz/1 | | Min Circuit Ampacity . | 31.65 | 40.2 | 41.8 | 41.8 | 41.8 | | Max Fuse Size | 50 | 60 | 60 | 60 | 60 | | Water Flow | | Min/Max GPM | 30/70 | 30/70 | 30/70 | 30/70 | 30/70 | | Dimensions | | Weight | 255 | 295 | 310 | 327 | 327 | | Length x Width x Height | 31 x 31 x 35 | 35 x 36 x 37 | 35 x 36 x 41 | 35 x 36 x 41 | 35 x 36 x 41 |
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