26
8.2.2 Description of interface display items
Date (year / month / day): display format xxxx/xx/xx
Time (H / min / s): display format xx/xx/xx
Instantaneous flow: see Appendix E for terms and expressions.
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referenskälla.
Cumulative flow (∑ +: positive cumulative flow, ∑ -: negative cumulative flow): see
Appendix E for terms and terms.
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Power (heat: heat, cold: cooling capacity): see Appendix E for terms and terms.
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Hittar inte referenskälla.
Accumulated heat (∑ H: accumulated heat, ∑ C: accumulated cooling capacity):
see Appendix E for terms and terms.
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Supply temperature: see Appendix E for nouns and terms.
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referenskälla.
Return temperature (returnt): see Appendix E for nouns and terms.
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referenskälla.
Temperature difference (
△
th: water supply temperature - return water temperature,
△
TC: return water temperature - water supply temperature): see Appendix E for terms and
terms.
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Alarm prompt (!): When the system alarms, it will flash.
Total alarm code: the sum of all alarm codes. Note that the alarm codes are
hexadecimal.
Alarm item: the code and content corresponding to the alarm item.
Table 8
-
2 list of heat mode alarm codes82
Alarm display
code
Alarm display
character
Alarm meaning
8000
retain
4000
retain
2000
retain
1000
retain
800
retain
400
HTs30
In auto mode, when the flow is positive and ts>tr,
ts<30; Tr<30 when the flow is negative and ts<tr
200
CTs18
In auto mode, ts>18 when the flow is positive and
ts<tr; Tr>18 when the flow is negative and ts>tr
100
retain
80
Tr
TR not connected
40
TS
TS not connected
20
TSL
TS < TR in heat metering mode
10
TSH
TS > TR in cooling metering mode
08
retain
04
retain
02
Empty
Air traffic control
01
Store
EEPROM memory card not installed