GENERAL
INFORMATION
GAS SAFETY (INSTALLATION AND USE)
REGULATIONS 1994
It is the law that all gas appliances must be installed by a
competent person in accordance with the above regulations. Failure to
install appliances correctly could lead to prosecution. It is in your
interest and that of safety to ensure compliance with the law. The
manufacturers notes must not be taken, in any way, as over-riding
statutory obligations.
WARNING: This appliance must be earthed and protected by a 3
amp fuse.
ELECTRICITY SUPPLY: 230V ~ 50Hz
IMPORTANT: To get the best from your Highflow please read
these instructions carefully.
NOTE: In the event of a fault the appliance should not be used
until the fault has been corrected by a competent person.
GENERAL DESCRIPTION
(See Fig.1.)
The HIGHFLOW 400 MODELS are combined domestic hot water
and central heating appliances. They consist of a gas fired boiler
having a varying output of between 8.8 kW and 24 kW, a heatbank
containing stored primary water, a heat-exchanger to provide domestic
hot water via the boiler, a circulating pump, water diverting valve and
all necessary controls to provide mains fed domestic hot water and
central heating.
The appliances are fitted with a manual Operating Switch.
The appliances can operate in one of two modes. Hot water only
or hot water and central heating.
Hot Water Mode:
When a demand is made for hot water by opening a tap or
shower; the flow switch will energise the pump and circulate primary
hot water around the boiler and water to water heat exchanger. The
burner will light at its maximum setting to maintain the temperature
of the heatbank.
When hot water is no longer required the appliance will continue
to operate, the burner will cycle a number of times, until the heatbank
has returned to temperature. The pump will continue to run for a few
minutes to dissipate the residual heat around the appliance.
If no hot water demand is made then the boiler will only use
enough energy to maintain the temperature of the heatbank.
The maximum temperature of the water drawn off from the
heatbank is governed by the setting of the Hot Water Temperature
Control Knob. (See Fig.2.)
3
