DORCHESTER DR-SA 16, Инструкция по установке, наладке и обслуживанию

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Note:
Do not use a metal scraper to remove deposits.
You will damage the glass lining.
After cleaning, replace the clean out door with new gasket
if required. Refill heater and check for leaks.
Note:
The maintenance of the waterside of the system
may require additional cleaning and disinfecting before
being placed into service. Refer to BS 6700.
2.7.4 Spare parts
To be able to order spare parts it is important to note the
model number of the heater as well as the serial number.
Based on this information the detailed spare parts can be
determined.
2.8 Condensation
If the appliance is filled with cold water or if the hot
water consumption is very high, condensation of flue
gases will occur on the cold surfaces of the combustion
chamber and the flue tube. The water droplets will fall on
the burner and cause a sizzling noise. This is a normal
phenomenon that will disappear as soon as the heater
reaches its normal operating temperature.
2.9 Important warning
The heater must never be placed into operation with a
closed cold water supply! Provision must always be made
for expansion.
3. FOR THE USER
3.1 Instructions for use
Note: Refer to the data label to confirm for which gas the
heater is adjusted.
Warning:
All installations
MUST
conform to the
relevant Gas Safety and Building Regulations. It is law
that competent persons in accordance with the above
regulations install all gas appliances.
The electrical supply to the heater
MUST
be switched
OFF
before attempting service or maintenance.
This appliance
MUST
be suitably earthed.
Filling the water heater
1. Close the drain valve.
2. Open the cold water valve to the water heater and
open all hot water taps. The water heater is filled as
soon as cold water flows from all taps.
3. Close all hot water taps.
Lighting instructions
1. Check that the heater is full of water by ensuring water
flows at constant pressure from a hot tap connected to
the heater system.
2. Switch the mains electricity supply to the heater
OFF.
3. Turn the heater thermostat to the lowest setting.
4. Press the safety thermostat reset button firmly to
make sure it is reset.
5. Press the combustion products discharge safety
device reset button firmly to make sure it is reset.
6. Make sure the manual gas shut off valve is open.
7. Switch the mains electricity supply to the heater
ON
.
Set the on/off switch on the heater to
ON
(1) and
adjust the control thermostat to the desired setting.
8. If the ignition controller rest button is illuminated, wait
30 seconds before pressing the reset button.
9. The heater will now light if heat is required.
If the safety thermostat or the combustion-products
discharge safety-device operates and shuts down the
heater, find the cause of the fault before you press
the reset button. If in doubt, contact your installer or
Hamworthy Heating Ltd. for advice.
Operation
The gas control valve automatically regulates the gas
supply. The main burner will ignite as soon as the
thermostat senses a reduction in water temperature.
The main burner will shut down as soon as the preset
temperature is achieved. At high water temperatures there
is more scale build-up in the heater. It is recommended
therefore, that the thermostat is set no higher than 60 °C
as the accumulation of scale will be minimised.
Shutting down the heater
To shut the heater off for short periods (i.e. 2 – 3 days),
turn the heater control thermostat to minimum. Wait 2 to 3
minutes and switch the on/off switch to
OFF
. To switch the
heater off for longer periods, repeat the above and turn
both the local electrical isolator and the manual gas shut
off valve to
OFF
. Depending on the weather conditions
likely to prevail during the shutdown period, consideration
must also be given to completely draining the heater.
The manual gas shut off valve must not be used except
in emergencies, for long periods of shutdown or during
servicing.
Additional safety advice
1. Do not block or obstruct ventilation grilles.
2. If at any time a gas leak is suspected, turn
OFF
gas
supply –
DO NOT use a naked flame – DO NOT use
electrical switches, alarms or lights – DO open
windows – contact your nearest Gas Conveyor office
immediately. Generally their telephone number can be
located under
GAS
in your telephone directory.
3. If you consider the heater to be malfunctioning, turn it
OFF
and seek expert advice.
4. To make sure safe and efficient operation at all times,
it is essential that the heater be serviced regularly.
Contact your installer or Hamworthy Heating Ltd for
advice.