Installation Guide
Remember that the above instructions are just guidelines that apply at most
installations.
06 07
Working with electricity requires proper skills and knowledge – Installation of the
unit should be performed by someone who is familiar or trained in this trade. We
HIGHLY recommend that you hire the services of a licensed and qualified
“Electrician/Plumber” familiar with tankless water heaters installation.
IMPROPER INSTALLATION CAN CAUSE INJURY OR EVEN DEATH.
IMPORTANT: All electrical work and unit fixing to the wall should be completed
before connecting electrical wiring.
When you turn on the unit, extremely hot water could come out. Take proper safety
precautions to avoid being hurt or burned by water.
DO NOT expose the unit to freezing temperatures. Do not use an input water
temperature over 90 degrees F or 32.2 degrees Celsius. This unit is designed for
indoor use only.
DO NOT restrict the flow of water entering the unit.
Swing Check Valve
Main Water Supply Valve
Green Ground Wire.
Connect to ground bar on breaker box.
POWER PAK - PLUS
Amperage Control Knob
PP110: Connect (1) white wire to
breaker and (1) white wire to neutral.
PP220: Connect both white wires to
breaker.
ONE POINT OF USE TWO OR MORE POINTS OF USE
Power Selector
Minimum Breaker
Position 1 and 2
Position 1, 2 and 3
Position 1, 2, 3 and 4
20 Amperes
30 Amperes
40 Amperes








