4
1.0
USER GUIDE
1.1
GENERAL REQUIREMENTS
This equipment must be installed by a competent person, registered with a H.S.E. approved
body. All installations must conform to the relevant Gas Safety and Building regulations. Health
& safety requirements must also be taken into account when installing any equipment.
A competent person must also undertake any alterations that require the gas train or flue system
to be broken.
Any interference with a sealed component is forbidden.
Failure to comply with the above may lead to prosecution.
Incorrect use may result in injury and will also invalidate the warranty
1.2
PROCEDURE FOR LIGHTING
1.
Ensure that the gas inlet appliance isolating valve is in the “off” position.
2.
Press the power rocker switch, positioned on the back of the appliance to bring the equipment on.
3.
Press the Enter/Reset button on the Smart System control panel to initiate the burner.
4.
The combustion fan should ramp up to full speed to purge the combustion chamber and then drop back
to half rate in order to light. As the gas inlet appliance isolating valve is closed, the controls should go to
a flame failure condition after four ignition attempts (SHW45-325CE – SHW115-435CE) or one ignition
attempt (SHW145-435CE). If the above occurs correctly, open the gas inlet appliance isolating valve
and reset the unit by depressing the Enter/Reset button on the control panel.
5.
The combustion fan will repeat the pre-purge procedure and attempt to light. Once a flame is
established, the LCD display will change to display the rate at which it is firing.
1.3
PROCEDURE FOR SHUTTING DOWN
To take the appliance out of service, the Enter/Reset button should be pressed. If the appliance in to be shut
down for a long period of time, the power supply should be isolated using the rocker switch on the back and the
gas supply should be isolated at the gas inlet appliance isolating valve.
1.4
TEMPERATURE ADJUSTMENT PROCEDURE
The setpoint can be adjusted using the Up and Down buttons on the Smart System control panel. Once the
desired setpoint is displayed, the Enter/Reset button should be pressed to store the value.
The setpoint should be adjusted to ensure that the water is stored at 60°C and distributed at 50°C within 1 (one)
minute at all outlets. Care is needed to avoid much higher temperatures because of the risk of scalding. At 50°C
the risk of scalding is small for most people, but the risk increases rapidly with higher temperatures and for longer
exposure times. The risk to young children and to those with a sensory or mobility loss will be greater. Where a
significant scalding risk has been identified, the use of thermostatic mixing valves on baths and showers should be
considered to reduce temperature, these need to be placed as close to the point of use as possible.
1.5
MAINTENANCE
The SMART SYSTEM control has a built in timer that counts the time period, operating hours and burner initiation
cycles since the unit was last maintained. Once one of these preset values has been exceeded, the display will
show
SERVICE DUE
every 5 seconds. At this point, it is strongly recommended that a competent person,
preferably appointed by Lochinvar Limited, carries out the necessary maintenance work.
Details of the necessary maintenance work can be found in the Installation, Commissioning and Maintenance
Instructions.
