Installation Guide

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SERIES TANKLESS ELECTRIC WATER HEATERS | 17
TECHNICAL DATA
11. Technical data
Mini 2-1 Mini 2.5-1 Mini 3-1 Mini 3.5-1 Mini 4-2 Mini 6-2
Part number 231045 232098 220816 232099 222039 220817
Electrical data
Phases 1 - 50/60 Hz
Voltage
1
110-120 V 110-120 V 110-120 V 110-120 V 220-240 V 208 V 220-240 V 208 V
Wattage 1.8 kW 2.4 kW 3.0 kW 3.5 kW 3.5 kW 2.6 kW 5.7 kW 4.3 kW
Amperage draw 15 A 20 A 25 A 29 A 15 A 13 A 24 A 21 A
Min. recommended circuit breaker size
2
15 A 20 A 25 A 30 A 15 A 25 A
Min. recommended wire size
3
(copper) 14 AWG 12 AWG 10 AWG 10 AWG 14 AWG 10 AWG
Connections
Water connection
4
⅜ O.D. flex connector or ⅜ compression fitting
Application limits
Max. permissible pressure 150 psi / 10 bar
Recommended inlet temperature 41–77 °F (5–25 °C)
Minimum water flow to activate unit 0.21 gpm / 0.8 l/m 0.40 gpm / 1.5 l/m 0.4 gpm / 1.5 l/m 0.4 gpm / 1.5 l/m 0.40 gpm / 1.5 l/m 0.77 gpm / 2.9 l/m
Miscellaneous
Heating element Nichrome bare-wire
1
Nominal mains voltage is 110-120V and 220-240V.
2
This is our recommendation for overcurrent protection sized at 100% of load. Check local codes for compliance if necessary.
Tankless water heater are considered a non-continuous load.
3
Copper must be used. Conductors should be sized to maintain a voltage drop of less than 3% under load
4
For use with cold water supply only