SpacePak Solstice
Heat pump water heaters (HPWHs) are an efficient, electrified alternative to natural gas and electric resistance water heating in commercial and multifamily buildings. By extracting heat from ambient air and transferring it to water through a refrigeration cycle, HPWHs can achieve coefficients of performance (COP) two to four times greater than traditional electric resistance heaters. This efficiency translates to lower operating costs, reduced energy use, and significant greenhouse gas (GHG) reductions.
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SpacePak Solstice
Cold climate inverter monobloc with wide capacity modulation and strong published low temperature performance. Balances efficiency, output range, and packaged controls with North American support.
Hub Highlights:
- Tested COP 3.6–4.0 (at 47°F / 105°F)
- 4.6–11.6 kW heating capacity
- R32
- -22 F (-30 C)
- 140 F (60 C)
Last Edited on: June 2024
| Model Number | CC32-40 |
| Product Type | Monoblock air-to-water heat pump |
| Application | Space heating and cooling |
| Heating Capacity | 15,600–39,600 BTU/h |
| Heating Capacity (kW) | 4.6–11.6 kW |
| Cooling Capacity | 15,600–39,600 BTU/h |
| Cooling Capacity (kW) | 4.6–11.6 kW |
| Published Heating COP | Not available |
| Published Cooling EER | 6.82–8.98 EER, IPLV 16.75 |
| Seasonal COP (SCOP) | Not available |
| Minimum Operating Ambient Temperature | -22 F (-30 C) |
| Maximum Operating Ambient Temperature | Not available |
| Maximum Supply Water Temperature | 140 F (60 C) |
| Minimum Supply Water Temperature | Not available |
| Refrigerant | R32 |
| Refrigerant GWP | 675 |
| Electrical Supply | 208–230 V single phase |
| Compressor Type | Variable speed inverter |
| Capacity Modulation | Wide inverter modulation |
| Integrated Circulation Pump | Yes |
| Control System | Integrated controller |
| Sound Level | 43 dBA at 1 m |
| Certifications | Not available |
| Dimensions (Outdoor Unit) | 51 x 18 x 37 inches |
| Weight (Outdoor Unit) | 292 lb |
| Country of Manufacture | United States |
| Intended Distribution Systems | Radiant floors and fan coils |
| Climate Suitability Category | Very Cold Climate / Cold Climate Optimized |
|
Reference Outdoor Temperature (°C)
|
8.3 |
|
Reference Entering Water Temperature (°C)
|
40.5 |
|
COP – Speed 1
|
4.02 |
|
COP – Speed 2
|
3.92 |
|
COP – Speed 3
|
3.82 |
|
COP – Speed 4
|
3.72 |
|
COP – Speed 5
|
3.62 |
Data Collection
Observations relevant to installation, operation, and maintenance based on laboratory evaluation and product documentation review.
Installation
System Configuration
Monoblock
Installation
Refrigerant Line Installation Required
No
Installation
Integrated Circulation Pump
Yes
Installation
Unit Weight
292 lb
Installation
Refrigerant Flammability Class
A2L (R32)
Installation
Electrical Supply
208–230 V 1-phase
Controls & Communication
Communication Interface Used in Testing
Modbus — functional
Controls & Communication
Control Interface Type
Integrated controller
Controls & Communication
Remote Monitoring / App
Not available
Controls & Communication
BMS Integration
Via Modbus
Operation
Sound Level
43 dBA (quietest tested)
Operation
Min Operating Ambient Temperature
-30°C (-22°F)
Operation
Max Supply Water Temperature
60°C (140°F)
Operation
Compressor Modulation
Variable speed
Operation
Suitable Distribution Systems
Radiant floors, fan coils
Maintenance & Support
Country of Manufacture
United States
Maintenance & Support
Diagnostic / Fault Reporting
Basic fault codes
Maintenance & Support
Refrigerant GWP
675
Maintenance & Support
Lab Testing Observations
Unit operated as expected; limited test points (2) due to equipment constraints