8
INSTALLATION COMPLETION
13. WIRING
Observe all the usual precautions to ensure that the electricity supply is isolated before beginning any installation
work. The heater should be wired as described in section 5.
Important: this appliance must be earthed.
14. GAS AND WATER CONNECTIONS
Connect the gas and water connections to the appliance using the appropriate fittings. Ensure that the pipe sizing,
material and connections comply with sections 6, 7, and 8 of this manual.
SETTING AND FIRST USE
15. THE CONTROL SCREEN
The control screen displays the water temperature, fan operation,
burner operation and water delivery and fault diagnostics information.
In normal operating conditions the screen will display the set water
temperature and operational mode, for example if the water heater is
not being used the temperature will be displayed together with a
shower head. If the water heater is working then the shower head will
display a water effect and the burner and fan will flash on and off.
The temperature of the water that will
be delivered from the appliance is set
by using the up and down buttons on
the left hand side of the panel.
To operate the water heater turn on the power from the mains – (the control panel will
light up and display the number 18 which confirms that PCB mode and settings are
correct for this appliance, the display will then go to a non-illuminated condition), then
switch on the water heater via the on—off switch on the control panel. The water heater
is now in operational mode and will automatically start up when the hot water tap is used.
Water temperature can be set between 35
0
C and 65
0
C it recommended that the optimal
temperature is 40
0
C
16. GENERAL GUIDANCE NOTES ON HOT WATER DELIVERY
The temperature of the hot water is governed by both the ambient temperature of
the cold water supply and its flow rate through the water heater. The flow rate of the
hot water is controlled by the hot outlet tap / shower.
Water Flow settings: The appliance is fitted with a manual water flow adjuster which
should be in the summer position for normal operation; however in very cold
conditions the water inlet temperature may be too low to heat the water effectively. If
this happens then the water flow switch should be set to the winter position.
The water heater can theoretically supply more than one outlet simultaneously;
however in practice the tap which is nearest will receive the most hot water. If the
shower is in use and a kitchen tap is opened virtually all the hot water will be
diverted to the kitchen as it offers the least resistance.
• Due to the restrictive nature of simple mixer showers it is wise to turn the temperature selector down on
the water heater before using the shower.
DO NOT PLACE YOUR HANDS under the tap or use the shower until this initial flow has passed.
Allow time (30 seconds) for the temperature to stabilise after making an adjustment at the tap before making further
adjustments.
17. APPLIANCE SAFETY LOCK-OUT
This water heater has a fault indicator built in to it on the front display, whenever a malfunction is detected in the water
heater the display panel will indicate a fault code and turn the water heater off. Please refer to the fault code section to
diagnose a fault.
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