| 摘要 |
The present invention concerns a cooling or heating system including at least a compressor (10), a coolant tank/accumulator (4), a condenser (11), an inspection glass device with ejector pump (1, 2) for circulation and control of coolant, coolant and a vaporiser (13). The invention is characterised essentially in that the system comprises: a connection (8) to the ejector pump (1, 2), for intake of condensate from the condenser (11), an exit connection (9) from the ejector pump (1, 2), for connection to the vaporiser (13) and means (3) for visually controlling the ejector pump (1, 2). The invention also concerns a device (12) for controlling the coolant of a cooling or heating apparatus.
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