| 摘要 |
<p>A temperature control system comprises a primary loop (11) connected to second loops (12-14) via respective refrigerant modules (40) acting as reversible heat exchangers. The secondary loops contain temperature control units (35) in the form of a coil heat exchanger and an associated fan. The refrigerant modules may incorporate gauged valve arrangements (105-108) to reverse the pipe connections when heating demands change. <IMAGE></p> |
