Installation Instructions
This water heater must be installed by a licensed electrician, as required by law.
1. Open the four screws located on top and bottom of the device and remove the cover from base.
2. Fix the base horizontally against a wall or side of cabinet, so that the water entry and exit
connectors are on the down/bottom side of the unit. Use 4 mounting screws.
3. Use of the pre-installed water filter on the incoming water line is required to protect the
heater.
4. Connect the incoming water line on the bottom left side and the outgoing water line to the bottom
right side. Please check that there is no water leakage from the unit.
5. Connect and lock the electric lines to each corresponding connector. It is required that this device
be properly grounded. The 3.5kW unit may be plugged in, providing that the outlet is properly
grounded.
6. Turn on the unit and check that it is operating as required.
7. Reconnect the cover to the base with 4 screws.
8. It is required that a Ground Fault Circuit Interrupter/Earth Leakage Circuit Breaker be incorporated
in the circuit.
9. Make sure that there is pressure release valve in your water system. Units up to 10.5kW
include a pressure unloading valve/PRD.
10. It is required to install the included flow control restrictor at the sink or shower.
11. Without supervision the use of the appliance by young children or infirm person is forbidden.
Playing with the unit by young children is forbidden.
Operation Instructions
1. Your new Instant Water Heater is flow activated. Simply place one or both switches in the ON
position and turn on the hot water tap. You’ll need to allow at least 1.2 liters per minute, or 1.3
quarts per minute to flow through the unit in order to activate the Instant Heating System.
2. Be sure to every so often clean the spray head of sediment to assure a smooth water flow.
3. Be sure to every so often clean the incoming water filter too.
4. The maximum operating water pressure is 8 atmospheres or 115 PSI. This is well above the usual
3 atmospheres or 4 PSI most municipal water systems provide.
5. Be sure to install your Instant Water Heater in a heated location. It cannot be installed where
temperatures drop below freezing.
6. There are two ways to adjust the hot water temperature. One is by adjusting the flow, the other is
by changing the electrical settings on the unit. The slower the flow, the more time the unit has to
heat the water, resulting in higher water temperatures. Adding more rings to the water flow restrictor
will limit the flow and increase the output water temperature. You may choose the low, medium
or high settings on the heater, as required to achieve the water temperature desired.
Setting /OFF: No heating, Lamp will not light. Setting 1: Low heating, lamp 1 will light.
Setting 2: Medium heating, lamp 2 will light. Setting 3: Maximum heating, both lamps will light.
For 22 V - 24 V 3.5kW unit only positions & 1 are available.
3. INSTALLATION
3.1 Device below a sink with 220V - 240V up to 3.5kW output
A. No separate electrical line is needed for the 3.5 watt unit.
B. The device must be connected to a properly grounded 16 amp circuit.
C. The recommended electrical cable for feeding the device is 3 x 1.5mm
2
/AWG Central Line
L
E
NR
1 2 3 4 5 6
7
1. Terminal block 5. Switch - Off
2. Thermal cut-out (Option) 1- Low
3. Relay 6. Heating element
4. Light 7. Read sensor
3.2 Device below a sink with 220V - 240V up to 10.5kW output
1. A separate electrical line is needed as device of this output, see table I for recommended cable
and fuse. For 2 phase 5 x 4 mm
2
Device with an output 110V / 4kW
a. A separate electrical line is required.
b. The device must be connected to a separate 4 Amp circuit breaker.
c. The recommended electrical cable for feeding the device is (3 x 6. mm
2
) or (3 x AWG - 8)
L
PE
NR
1 2 3 4 5
678
L1
L2
L3
PE
NR
1 2 3 4 5
678
1. Terminal block 5. Low heating element
2. Thermal cut-out 5. High heating element
3. Relay 7. Light
4. Switch - Off 8. Read sensor
1- Low
2- Medium
3- High
UP TO 10.5 kW - TWO PHASE
recommended 3 x 25A fuse
& cable feeding 5 x 4. mm
2
UP TO 10.5 kW - ONE PHASE
Fig.2
ELECTRICAL
WATER HEATER
Under Sink
Cable
Hot Water
Cold Water
Fig.1
