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12

2. FOR THE INSTALLER

2.1

Installation instructions

This water heater must be fitted in a
location which will permit the provision
os an approved flue system and ade-
quate ventilation.

A service clearance of 15 cm at the
sides and rear of the unit and 60 cm at
the front of the unit should be allowed
for ease of servicing. Adequate
distance must be allowed between the
top of the unit and any obstruction or
ceiling to allow the flue baffle and
anode to be inspected, cleaned or in the
case of the anode replaced if
necessary.
The water heater must stand on a level
surface resistant to heat, insulted in
accordance with local bylaws and Buil-
ding Regulations 1985, with sufficient
strength to support the weight of the
unit when full of water.
This water heater must not be installed
in a bathroom, bedroom or in a cup-
board opening on to such rooms. This
water heater must not be installed in
any area where flamable materials are
used or stored.
Insufficient ventilation may give rise to a
risk of fire, explosion or suffocation. If
in doubt consult the national and local
regulations governing the installation of
gas appliances or your British gas
sevice department.

2.1.1 Installation

The installation of this water heater
should be carried out by a suitably
qualified competent person. It is a
criminal offence for unqualified persons
to install gas equipment.
Installation should be carried out in
accordance with all local authority and
Building Regualions, Model Water
Bylaws, bylaws of the local water
supplier, Building Standards (Scotland)
(Consolidation) Regulations and any re-
levant requirements of the Local
Authority, local gas regions and the
following British Standards (current
editions):

For domestic applications:

BS 5440 - part 1 and part 2.
BS 5546 - Installation of gas hot water

supplies for domestic
purposes.

BS 6700 - Specifications for design,

installation and maintenance
of services supplying water
for domestic use within
buildings and their
curtilages.

BS 6798 - Specification for installation

of gas fired hot water
boilers of rated input not
exceeding 60 kW.

BS 6891 - Specification for installation

of low pressure gas
pipework of up to 28 mm in
domestic premises.

For non-domestic applications:

BS 5400 - part 1 and part 2.
BS 6798 - Specification for installation

of low pressure gas
pipework of up to 28 mm in
domestic premises.

CP 342

- Code of practice for

centralised hot water
supply part 2, buildings
other than individual
dwellings and the following
additional Codes of Practice.

IM/2

- Purging procedures for non-

domestic gas installations.

IM/5

- Soundness testing

procedures for industrial
and commercial gas
installations.

IM/11

-  Flues for commercial and

industrial gas fired boilers
and air heaters.

IM/16

- Notes on installation of

pipework (excluding 25 mm
and below).

Some chemicals produce vapours
which can cause rapid failure of main-
and pilotburners and storage tanks if
they are drawn into the combustion air
supply.

Содержание SCE 100-95 G

Страница 1: ...MODEL SCE 75 75 G SCE 100 95 G HOTWATERSTORAGEHEATERS UNITED KINGDOM IRELAND Installation Commissioning and Maintenance Instructions...

Страница 2: ...ly harm Installation and commisioning should be carried out by a qualified competent installer The type of gas and the value at which the appliance is set standard in the factory are registered on the...

Страница 3: ...e system 15 2 1 5 Flue down draught safety device 15 2 1 6 Electrical connection 15 2 2 Commissioning 16 2 3 Removing and replacing the control panel front cover 17 2 4 Setting the gas pressure 17 2 5...

Страница 4: ...d in a steel jacket reduces unnecessary heat loss When the appliance is filled with water it continuously is under water pressure As hot water is drained from the tank cold water is added immediately...

Страница 5: ...ver 9 Intermittent pilot burner and flame probe Figure 1 Cross section of the heater 10 Cold water inlet 11 Combustion products dicharge safety device 12 T P valve connection 13 Outer casting 14 Flue...

Страница 6: ...that the burner ignites as soon as there is a demand for heat 1 2 2 Controlpanel Temperature control for the water heater is housed in the control column See figure 2 For safety purposes heaters are...

Страница 7: ...button on the control panel The unit has to be manually reset by pushing the reset button If the flame is lost during normal run the automatic ignition controller repeats the start sequence 1 2 4 Com...

Страница 8: ...dimension G All dimensions are given in mm roun ded off on 5mm See drawing 3 Dimensions SCE 75 75 SCE 100 95 A 1585 1780 B 1450 1640 D 645 675 E 770 775 G 130 130 K 340 340 M 1505 1685 N 1505 1685 R...

Страница 9: ...9 Figure 3 Dimensions...

Страница 10: ...9 Diameter main orifice mm 2 30 2 35 Diameter pilot orifice mm 0 23 0 23 DATA PROPANE G31 37 mbar Nominal heat input upper valvue kW 24 6 26 1 Nominal output kW 19 2 20 4 Inlet pressure mbar 37 37 Ga...

Страница 11: ...out 1 2 to 1 3 micro Amperes DC when only the pilot flame is burning Adjust the main burner pressure to zero to be able to measure under this condition With pilot and main burner in operation the ioni...

Страница 12: ...Installation should be carried out in accordance with all local authority and Building Regualions Model Water Bylaws bylaws of the local water supplier Building Standards Scotland Consolidation Regula...

Страница 13: ...the system complies with the requirements of the water by laws and appropriate building regulations When fitting it is essential the rules of good practice are applied at all stages of installation V...

Страница 14: ...ing regulations should be used Installation should be carried out generally as shown on the following diagram 1 Manual gas valve 2 Stop valve 3 Expansion vessel 4 T P safety valve 5 Non return valve 6...

Страница 15: ...arately in the delivery crate MUST be fitted to the top of the heater in an unmodified condition before connecting the flue system The sensor of the combustion products discharge safety device is pre...

Страница 16: ...ontroller can be in the lock out condition depress the reset button to free the control After manual reset an extended prepurge waiting time will occur 6 Switch the ON OFF switch into ON position If t...

Страница 17: ...of the column 2 4 Setting the gas pressure The gas pressure has been set to the correct values at the factory Important The following proce dure must be followed when checking or setting the gas pres...

Страница 18: ...pressure maximum 8 bar The amount of cold water that is added is equal to the amount of hot water used The gas control block automatically regulates the gas supply The main burner will ignite as soon...

Страница 19: ...ed and serviced at least once a year by a qualified competent person 2 8 1 Sacrificial anode The life cycle of the anode is determined by the quality and the quantity of the wa ter flowing through the...

Страница 20: ...available 2 8 4 Spare parts To be able to order spare parts it is im portant to note the type of appliance as well as the serial number of the appliance Based on this information the data concerning t...

Страница 21: ...e waiting time will occur 6 Switch the ON OFF switch into ON position If the pilot fails to ignite within 25 seconds the controls will go to lock out and the reset button will need to be reset wait 15...

Страница 22: ...too low Set water temperature to higher valvue hot water 60 C recommended or none at all Thermal Reflux Safeguard After resetting the TRS activate the heater has shut down the heater If this occurs r...

Страница 23: ...ation leakage Leakage from other water If possible trace the cause and or call your heater or pipes in the vicinity installer Fault Possible cause Corrective action If a fault cannot be rectified or i...

Страница 24: ...and or energy inputs which do not exceed those stated on the rating plate of the wa ter heater d in a non corrosive atmosphere or area e with an approved temperature and pressure relief valve of adequ...

Страница 25: ...ater as suitable for purpose except within the terms of warranty detailed above STATE WATER HEATERS will not be liable by virtue of this guarantee or otherwise for damage to any persons or property wh...

Страница 26: ...probe F Transformer flame detection G Combustion products discharge safety device H Control thermostat K Safety thermostat L Timer M Remotebutton N Terminalblock P Terminalblock R Earth terminals S Co...

Страница 27: ...27...

Страница 28: ...0308 255 R1...

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