4
2. Safety
Do not connect any pressure-relief device
to the vent pipe of this water heater.
How hot water can be drained. (see page 11
for more details).
If the supply cord is damaged, it must
be replaced by the manufacturer, its service
agent or simularly qualified persons in order
to avoid a hazard.
2.1 General safety warnings
2.2 Recommendations
2.3 Specific safety instructions
WARNING
�
Install only as a CISTERN FED
appliance, failure to do so will invalidate
any guarantee and may lead to a
dangerous installation.
CISTERN FED INSTALLATION
�
When installed as a Cistern Fed water
heater the cold water supply must be
from a feed cistern complying with
Water Regulations Schedule 2, section
7, paragraph 16.
�
A vent pipe must be connected to the
vented top of the heater. The vent pipe
must rise continuously and be arranged
to discharge into the cold water feed
cistern.
�
The vent pipe must have a minimum
bore of 19mm.
�
More than one conventional tap can be
supplied.
WARNING
�
Only competent persons having
received adequate training are
permitted to work on the appliance and
the installation.
�
Do not tamper with any of the safety
valves or controls supplied with the
appliance.
�
Before any work, switch off the mains
supply to the appliance.
CAUTION
Do not operate the immersion heater until the
appliance has been filled with water.
WARNING
When handling the appliance, take appropriate
precautions for the weight of the appliance.
Weights can be found in section 3, p5.
CAUTION
Annual maintenance is recommended to be
carried out by a competent person, see section
9, page 15.
WARNING
�
This appliance is supplied with a
factory temperature setting of 54°C for
optimum energy efficiency. However, in
some applications to aid in the control of
legionella it may be necessary to reset
this to a higher temperature. It is the
responsibility of the installer and end
user to ensure that where applicable the
requirements of the "Approved Code of
Practice L8: The control of legionella
bacteria in water systems" are met.
Summary of Contents for Express 50 Litres
Page 1: ...Express 50 Litres Installation operation and maintenance manual...
Page 19: ...19...
Page 20: ...20 13 Spare parts Figure 10 Spare parts...
Page 22: ...22...
Page 23: ...23...
