Concentrated heat transfer fluid for ground source heat pump systems

Sentinel R500C Concentrated Heat Transfer Fluid provides exceptional thermal transfer for ground source heat pump systems. It offers superior stability and protection against corrosion and deposits, and resistance to degradation.

Key features

  • Provides effective corrosion and scale protection for system metals
  • May be diluted with mains water
  • Effective frost protection
  • Resistant to degradation
  • Non-toxic and biodegradable
  • Compatible with common system materials

Available sizes

20L liquid R500C-20L-DRUM

This product is a concentrated version of Sentinel R500 Heat Transfer Fluid. Designed for use in ground source heat pump equipment, Sentinel R500C Concentrated Heat Transfer Fluid provides frost protection and minimises corrosion, scale and deposition. This product helps reduce the costs of ground source heat pump system operation. It provides exceptional thermal transfer, superior protection against corrosion and deposits and resistance to degradation.

Use in conjunction with the Sentinel FrostCheck Test Kit to confirm proper installation and maintenance of ground source heat pump systems.

Using R500 Heat Transfer Fluid:

Before filling the ground loop, Sentinel R500C Concentrated Heat Transfer Fluid should be pre-diluted with town mains water in a ratio of one part Sentinel R500C Concentrated Heat Transfer Fluid to a maximum of nine parts water. The extent of dilution depends upon the desired frost protection; please refer to the dilution table below.

Frost Protection (°C)
(DIN 51583)
-50-37-30-23-18-13-10-7-4
R500C (% volume)504540353025201510
Water (% volume)505560657075808590

Please note: Sentinel R500C Concentrated Heat Transfer Fluid must not be mixed with other heat transfer fluids.