Description
The Grundfos 99689316 (Hydro MPC-E 2 CRE 10-2) is a Vertical Multistage Centrifugal Pump — Variable Speed. Cast iron head and base, stainless steel wetted parts, with integrated variable frequency drive and IE5-rated permanent magnet motor for energy-optimized pressure control. Nominal performance: 97.7US gpm at 77.21ft. Rated 208-230V, 3-Phase, 60 Hz. Applications include HVAC: Air Conditioning, Plumbing: Pressure Boosting, Plumbing: Hot Water Recirculation and more.
Integrated Variable Frequency Drive
The VFD is built into the pump head — no external drive cabinet, no panel wiring, no drive-to-motor cable. Reduces panel space, installation cost, and failure points.
IE5 Permanent Magnet Motor
CRE uses a Grundfos MGE permanent magnet motor rated IE5 — the highest commercially available efficiency class. Significant energy reduction vs IE3 motors at partial load.
Proportional Pressure Control
AUTOADAPT automatically adjusts set point based on actual system demand. No manual curve adjustment needed after commissioning.
iSOLUTIONS Ready
CRE supports Grundfos GO app, CIM communication modules (PROFIBUS, MODBUS, BACnet), and remote monitoring. Full integration into building management systems.
Soft Start Built In
The integrated drive provides controlled ramp-up, eliminating water hammer and reducing mechanical stress on seals and couplings at every start.
Pump Protection Built In
Dry-run protection, over-temperature shutdown, and motor current monitoring are standard in every CRE. No external protection relay required.
| Model Number | 99689316 |
| Product Series | CRE |
| Series Description | Vertical Multistage Centrifugal Pump — Variable Speed |
| Power | 1.5HP |
| Voltage | 208-230V |
| Phase | 3-Phase |
| Frequency | 60 Hz |
| Full Load Current | 3.88A |
| Protection Class (IP) | IP54 |
| Nominal Flow | 97.7US gpm |
| Nominal Head | 77.21ft |
| Max Operating Pressure | 232.06psi |
| Max Fluid Temperature | 179.6°F |
| Max Ambient Temperature | 104°F |
| Pipe Pressure Rating | PN 16 |
| Approvals / Certifications | CULUS, PROP65 |
| Electrical | Verify supply voltage, phase, and frequency match nameplate before installation: 208-230V, 3-Phase, 60 Hz. |
| Temperature limits | Do not exceed max fluid temperature 179.6°F or max ambient temperature 104°F. Exceeding limits damages seals and motor insulation. |
| Dry running | Do not run dry. CRE pumps use the pumped fluid to lubricate the shaft seal. Dry running destroys the seal within seconds. Install dry-run protection on all automatic installations. |
| Maintenance | Refer to the Grundfos Installation and Operating Manual (IOM) for correct installation, commissioning, and maintenance. Contact PumpStop for documentation. |
- Approvals
- CULUS,PROP65
- Config. file no
- 98272389
- Connection
- PE
- Control type
- E
- Density
- 62.29 lb/ft³
- Dry running protection, mechanical
- PRESSURE SENSOR 0-10 BAR
- Enclosure class (IEC 34-5)
- IP54
- Frequency
- 60 Hz
- Gross weight
- 644.0 lb
- IP Class
- IP54
- Liquid max temp
- 179.6°F
- Liquid temperature range
- 41 .. 179.6 °F
- Max flow
- 138 US gpm
- Maximum head
- 95.81 ft
- Maximum operating pressure
- 232.06 psi
- Net weight
- 423.0 lb
- Number of phases of main pump
- 3
- Number of pumps
- 2
- P2 kW
- 1.5 HP
- Phase
- 3
- Pressure rating for connection
- PN 16
- Pressure sensor
- Product name:Hydro MPC-E 2 CRE 10-2
- Pump
- 3
- Pumped liquid
- Water
- Radio interference supression
- EMC DIRECTIVE(2014/30/EU)
- Range of ambient temperature
- 41 .. 104 °F
- Rated current
- 3.98 A
- Rated current of system
- 9.2 A
- Rated flow
- 107 US gpm
- Rated head
- 72.51 ft
- Rated power - P2
- 1.5 HP
- Rated voltage
- 3 x 208-230 V
- Return valve
- Product name:Hydro MPC-E 2 CRE 10-2
- Sales region
- Namreg
- Selected liquid temperature
- 68 °F
- Type
- E
Dimensional Drawing
Wiring Diagram