APPENDIX 2 - SYMBOLS USED ON THE DISPLAY
R CO/CO
2
λ Excess Air
Loss %: 100% minus loss % = efficiency %
TF Flue temperature
TI Inlet temperature
∆T Nett temperature
EfG Gross efficiency
EfN Nett efficiency
EfC Condensing efficiency
- PO - Pump off
-O>- Calculated oxygen greater than 18% so calculation is
disabled
-OC- Open circuit temperature input
CAL Number of days left before recalibration is due
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