4
2.3
Specific safety instructions
WARNING
DO NOT operate the product if:
`
Water ceases to flow during use.
`
Water has entered inside the
product because of an incorrectly
fitted cover.
`
If the appliance is damaged.
(in all cases turn off mains power and
isolate water supply)
`
If water discharges from the
temperature/pressure relief valve
on the product shut down. Do not
turn off any water supply. Contact
a competent installer for unvented
water heaters to check the system.
`
Do not tamper with any of the
safety valves fitted to the system.
If a fault is suspected contact a
competent installer.
`
DO NOT bypass the thermal cut-
out in any circumstance.
2. Safety
2.1 General safety warnings
DANGER
This product is unvented and as such
becomes pressurised when in operation.
The combination of pressurisation and hot
water could lead to serious physical injury
if the safety instructions in this manual are
not adhered to.
DANGER
Do not install where the unit may freeze.
WARNING
`
Only competent persons having
received adequate training are
permitted to work on the product
and the installation.
`
Do not tamper with the safety
valve supplied.
`
Before any work, switch off the
mains supply to the appliance.
`
Do not switch on if there is a
possibility that the water in the
appliance is frozen.
CAUTION
Do not operate immersion heater until the
product has been filled with water.
2.2 Recommendations
CAUTION
`
Annual maintenance is
recommended by a competent
person.
