Continuous flow gas hot water heaters preset to 75 °C with status monitor.
Suitable for mains and medium pressure residential and commercial applications. Also applications requiring higher hot water temperatures, can be set up to 85 °C (HD32 up to 95 °C). Hard or acidic water will need to be treated to use this product.
Available for NG or LPG. Gas type specified at time of purchase.
Input
HD250 – 250 MJ/h or 69 kW HD26 – 199 MJ/h or 55 kW
Output
HD32 – 56 kW HD26 ext – 47. 2 kW HD26 int – 46 kW
Efficiency
HD32 – 80%, HD26 ext – 85%, HD26 int – 87%
Capacity
Hot water capacity: 2.4-32 L/min (HD32), and 2.4-26 L/min (HD26) Nominal water capacity: HD32 – 32 L/min at a 25 °C rise (1920 L/h), HD26 – 26 L/min at a 25 °C rise (1560 L/h)
Connections
Hot water outlet R¾ (20 mm)
Cold water inlet R¾ (20 mm)
Gas supply R¾ (20 mm)
Exhaust system
External units → forced flue Internal unit → room sealed forced flue
Ignition system
Direct electronic ignition
Injector sizes (mm)
Model
NG
LPG
HD32
1.05, 1.65
0.65, 0.95
HD26
1.15, 1.80
0.75, 1.15
HD26 int
1.00, 1.70
0.75, 1.15
Line pressure (max.)
3.5 kPa (maximum standing pressure under abnormal intermittent conditions is 5.0 kPa).
In the case of commercial metering (i.e. 35-37 kPa coming in), there may be a requirement to regulate the incoming line pressure down.
Noise level
49 dB(A)
Power consumption
Model
Normal
Standby
Automatic frost protection
HD32
83 W
12 W
100 W
HD26
65 W
6 W
100 W
HD26 int
80 W
7.5 W
100 W
Pressure relief
Valve opens at 2060 kPa and closes at 1470 kPa
Preset temperatures
HD32 – 40, 43, 50, 55, 60, 65, 75, 85, and 95 °C HD26 – 40, 43, 50, 55, 65, 75, and 85 °C