User Manual
INSTALLATION – WATER HEATER 
58 
TECHNICAL DATA 
Models 
Gas type suffix 
874812 
876812 
NF, PF 
874816, 874T16 
876T16 
NF, NFZ, PF, LFZ 
874820 
876820 
NF, NFZ 
PF, LFZ 
874826 
- 
LFZ 
874826, 874T26 
876826, 876T26 
NF, NFZ, PF 
Water heating capacity 
@ 40°C rise 
litres / min 
7.5 
10 
12.5 
15.4 
16.2 
Nominal capacity 
@ 25°C rise 
litres / min 
12 
16 
20 
24.6 
26 
Mass  Empty (unpackaged) 
kg 
16 
16 
16 
16 
16 
Gas Details 
Hourly Gas Consumption 
(MJ) 
Min. Gas 
Pressure 
(kPa) 
Max. Gas 
Pressure 
(kPa) 
Injector Size (mm) 
40 x injectors 
per water heater 
812  
- 
816  
T16 
820  
- 
826  
T26 
812, 816, T16, 
820, 826, T26 
812, 816, T16, 
820, 826, T26 
Natural 
94 
126 
157 
199 
1.13 
3.50 
20 x  1.55 + 20 x  1.03 
Propane 
94 
126 
157 
199 
2.75 
3.50 
20 x  1.10 + 20 x  0.73 
Universal LP Gas 
- 
126 
157 
194 
2.75 
3.50 
20 x  1.10 + 20 x  0.73 
Gas Details 
Test Point Gas Pressure (kPa) 
minimum 
maximum 
812  
- 
816  
T16 
820  
- 
826  
T26 
812  
- 
816  
T16 
820  
- 
826  
T26 
Natural 
0.15 
0.15 
0.15 
0.15 
0.38 
0.40 
0.57 
0.92 
Propane 
0.19 
0.19 
0.19 
0.19 
0.40 
0.43 
0.62 
0.98 
Universal LP Gas 
- 
0.20 
0.20 
0.20 
- 
0.41 
0.61 
0.94 
Technical data is subject to change. 
Model numbers 
  Gas type    Letter N, P or L is included in the model number to denote gas type. 
N = Natural, P = Propane (AU), L = Universal LP Gas (NZ). 
E.g. 874826NF, 874826PF, 874826LFZ. 
  Frost protection  Letter F is included in the model number to denote frost protection. 
  New Zealand models  Letter Z is included in the model number to denote New Zealand models. 
E.g. 874826NFZ, 874826LFZ. 
  Solar boosters   /J is included in the model number to denote a Joey Grey coloured jacket. 
These models are used as solar booster water heaters. 
Available on 874820NF/J, 874826NF/J, 874826PF/J models only in Australia. 










