The Refcomp SP8H7000 / SP8H700E is a 70 HP semi-hermetic reciprocating compressor engineered for chiller and cold room applications. It supports R22, R407C, R134a, R404A and R507 refrigerants and is built around four core design features that support safe, reliable and low-maintenance operation.
An internal safety valve connects the high- and low-pressure sides of the compressor. Its precise opening and timely reset help protect the unit against abnormal pressure conditions, adding an important layer of operational safety.
A built-in high-density suction filter captures impurities from the refrigerant gas before it enters the compression chamber. This protects internal components from contamination, while its external installation makes inspection and replacement easier, simplifying routine maintenance.
A combination of sliding and thrust bearings accommodates both axial and radial loads. High-precision fitting and effective lubrication help reduce friction and operating noise, supporting smoother mechanical operation and reducing component wear.
The integrated INT69B2 protection module helps prevent motor burnout by providing dedicated electrical protection. This additional safeguard reduces the risk of motor damage and supports safer compressor operation under abnormal conditions.
| Model | SP8H7000, SP8H700E |
|---|---|
| Rated power | 70 HP / 52 kW |
| Exhaust volume (50/60 Hz) | 222 / 268 m³/hr |
| Refrigerant type | R22, R407C, R134a, R404A, R507 |
| Weight | 350 KG |
| Oil charge | 5 L |
| Voltage | 400V/3/50Hz, 460V/3/60Hz PW |
| Starting current PW/DOL | 329 / 439 A |
| Max operating current | 140 A |
Q1: How do I select the right SP8H7000 for my chiller application?
When selecting a reciprocating chiller compressor, consider the required cooling capacity, refrigerant, evaporating and condensing temperatures, ambient conditions and power supply. The SP8H7000 is an eight-cylinder reciprocating compressor in the SP high-temperature range, so its operating conditions should be checked against the actual application.
Q2: What electrical requirements should be confirmed before installation?
For a 70 HP chiller compressor, verify that the site power supply matches the motor configuration. The supplied specifications list 400V/3-phase/50Hz and 460V/3-phase/60Hz partial-winding configurations, which should be checked against the motor nameplate and wiring diagram.
Q3: What should I do if the INT69B2 motor protection module trips?
If the chiller reciprocating compressor stops due to a protection trip, check the power supply, phase condition, motor wiring and operating conditions. Identify and correct the underlying fault before restarting rather than repeatedly resetting the protection module.
Q4: What maintenance practices help maintain reliable compressor operation?
During routine maintenance of the chiller reciprocating compressor, inspect the suction filter for contamination and check the lubrication condition, operating noise and vibration. Timely inspection helps identify potential problems before they develop into more serious mechanical issues.
