Mammoth offers a complete line of high-efficiency split system water source heat pump units ranging from 2.6 kW to 21.5 kW. Each system consists of a compressor unit (installable indoors or outdoors) and an indoor unit. Every unit is run-tested with water in both cooling and heating modes and is listed for product safety by CCC and CE. The compressor unit integrates a water-to-refrigerant coaxial heat exchanger in a fully insulated, powder-coated galvanized steel cabinet to prevent condensation and reduce noise. The indoor unit features a compact, lightweight design for easy ceiling installation in space-limited areas and includes a high-efficiency coil, quiet centrifugal fan assembly, and an epoxy-coated insulated drain pan. Optional return air plenum with washable filter and flexible left/right piping connections are also available.
From the “Mammoth Water Source Heat Pump Unit” feature list:
Twelve models from 3/4 to 6 tons
Energy efficiency up to EER 4.3 and COP 5.2 under water-loop application
Fully run tested with water
Compact size
CE certified and ARI/ISO 13256-1 rated for capacity and efficiency
Rotary and scroll compressors
MGP50 microprocessor-based control system
Optional geothermal application
Additional construction & design features (from unit description section):
Water-to-refrigerant coaxial heat exchanger
15 mm insulated cabinet (fiberglass/PE) to reduce noise & condensation
Hermetic or scroll compressor, expansion device, high/low pressure protection
Male NPT copper water connections outside cabinet
Factory-mounted hanger brackets with grommets
High-efficiency indoor air coil for improved heat exchange
Low-vibration centrifugal fan assembly
Removable, epoxy-coated insulated drain pan
Optional return air plenum with 10 mm washable nylon filter
Field-convertible left/right piping connections
Download the catalog to view specifications for other models.
| Unit Size | Airflow m³/h |
Waterflow m³/h |
Cooling | Heating | ||
|---|---|---|---|---|---|---|
| kW | EER | kW | COP | |||
| L009 | 530 | 0.55 | 2.58 | 4.3 | 3.40 | 5.2 |
| L013 | 700 | 0.81 | 3.75 | 3.8 | 4.85 | 4.9 |
| L016 | 800 | 1.02 | 4.85 | 4.4 | 5.77 | 4.9 |
| L019 | 1000 | 1.24 | 5.80 | 4.1 | 6.90 | 4.7 |
| L024 | 1250 | 1.47 | 6.91 | 4.2 | 8.76 | 4.8 |
| L030 | 1500 | 1.82 | 8.60 | 4.4 | 9.70 | 4.9 |
| L036 | 1800 | 1.98 | 9.20 | 3.9 | 11.86 | 5.0 |
| J043 | 2100 | 2.42 | 11.20 | 3.9 | 13.50 | 4.5 |
| J052 | 2600 | 2.93 | 13.81 | 4.2 | 15.88 | 4.8 |
| J062 | 2900 | 3.37 | 15.67 | 4.0 | 19.07 | 4.5 |
| J072 | 3300 | 3.99 | 18.50 | 3.9 | 22.50 | 4.4 |
| J086 | 4000 | 4.67 | 21.50 | 3.7 | 26.00 | 4.4 |
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