Hyco Zen Life LIFE3L, Product Instruction Manual, Page: 18 / 29

3. Commission and Check Water Connections
• Before plugging the tank into the power socket, the system must be full of
water and tested for leaks.
• Open all water valves to allow water to flow to the boiling water tank.
• Pull the boiling tap handle out to release the safety lock (see Section 5) and turn
away from you to fill the tank, this will take approx 1 minute. When the tank is full,
water will flow from the spout.
• Check water flows smoothly from the tap to ensure all air has been purged from
the system, this could take up to 1 minute.
• Repeat the process for the mixer side turning the handle in both directions. Safety
lock release is not required to dispense standard hot and cold water.
• If a Crossover Valve is installed check the valve switches between source A/ B -
mains cold and filtered cold. This is identifiable as the flow rate through the filter is
significantly lower than the mains flow rate.
• Test the pressure relief valve by twisting the red cap until water flows from the
valve.
• If the pressure relief valve is discharging whilst the heater is turned off this is a sign
that the incoming pressure exceeds the 6 bar rating of the pressure relief valve. A
pressure reducing valve is required (not supplied).
• When the air is purged, the tap is closed and the system is fully pressurised, inspect
all connections for leaks.
• Flush any filters through ensuring the water runs clear.
• Ensure there are no obstructions in the expansion zone between the manifold and
the tank.
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