Specification - Rinnai INFINITY A-Series Installation Manual

Specification

Designed and made in Japan, the Rinnai INFINITY EF26 and A-Series are continuous flow
gas hot water heaters with inbuilt frost protection. The EF26 is a condensing model. They have
electronic ignition and require electricity to operate. They are factory preset to 55 °C (maximum set
temperature is 65 °C).
Scope of use
Suitable for residential applications only. They are designed to be externally mounted on an
outside wall and located as close as practicable to the most frequently used hot water outlet(s), to
reduce the delay for hot water delivery.
They are not suitable as a spa or swimming pool heater, and for hydronic heating. They are also
not suitable as a gas boost for solar installations as the temperature cannot be set high enough.
Hard or acidic water will need to be treated to use this product.
Specification summary
A16
REU-A1620WG-ZK
Thermal efficiency 80.5%
Hot water capacity 1.5-20 L/min
Hot water capacity at a 16 L/min
25° rise 960 L/h
Input 16.3-124 MJ/h
Output 27.8 kW
Weight 13 kg
Water, nominal 120-1000 kPa
operating pressure
Ingress protection IPX4
Power consumption:
- Normal 47 W
- Standby 2 W
- Frost protection 68 W
Safety devices
• Flame failure
• Boil-dry protection
• Overheat protection (OHS)
• Fusible link
• Pressure relief valve
• Combustion fan rpm check
Line pressures
• NG 1.13-3.0 kPa
• LPG 2.75-3.0 kPa
The maximum line pressure is 3.5 kPa, with the maximum standing pressure under abnormal
intermittent conditions 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.
4 | Rinnai INFINITY EF26 and A-Series installation guide 01-20
A20 A24
REU-A2024WG-ZK REU-A2426WG-ZK
80.5% 81%
1.5-24 L/min 1.5-26 L/min
20 L/min 24 L/min
1200 L/h 1440 L/h
19.9-156 MJ/h 16.3-184 MJ/h
34.9 kW 42.0 kW
14 kg 15 kg
160-1000 kPa 200-1000 kPa
IPX4 IPX4
58 W 56 W
2 W 2 W
68 W 68 W
A26 EF26
REU-A2626WG-ZK REU-E2626W-ZK
80.5% 91.5%
1.5-26 L/min 1.5-26 L/min
26 L/min 26 L/min
1560 L/h 1560 L/h
16.3-199 MJ/h 16.3-175 MJ/h
44.5 kW 44.5 kW
15 kg 18 kg
200-1000 kPa 220-1000 kPa
IPX4 IPX5
65 W 63 W
2 W 2 W
68 W 92 W