Skyline Energy SX-20BZA, Installation Manual, Page: 45 / 51

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When this error happen, operating panel will alarm, system 1 display Er:16, system 2 display
Er:17.
8. Inlet gas temperature sensor error
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After heat pump power on, if detect inlet gas temperature sensor is short circuit or open
circuit, system will judge inlet gas temperature sensor error, heat pump will continue to work.
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When this error happens, electric expansion valve controlling will be changed to by manual.
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This error can recover automatically.
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When this error happen, operating panel will alarm, system 1 display Er:29, system 2 display
Er:30.
9. Outlet gas temperature sensor error
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After heat pump power on, if detect outlet gas temperature sensor is short circuit or open
circuit, system will judge outlet gas temperature sensor error, heat pump will stop working.
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This error can recover automatically.
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When this error happen, operating panel will alarm, system 1 display Er:18, system 2 display
Er:19.
10. Outlet gas pressure is too high protection
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When standby, detect outlet gas pressure switch, if disconnects, system will enter high
pressure protection, and heat pump stop working to protect.
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When working, if detect outlet gas pressure switch disconnects for 10seconds, system will
enter high pressure protection, and heat pump stop working.
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If this problem happen 3times within 30minutes, system will not recover normal working
unless cut off electricity (the first two times can recover automatically)
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When this error happen, operating panel will alarm, and system 1 display Er:05, system 2
display Er:07
11. Inlet gas pressure is too low protection
◆
When standby, detect inlet gas pressure switch, if disconnects, system will enter low pressure
protection, and heat pump stop working to protect.