29
INSTALLATION
isar -
Installation and Servicing
40 HANDING OVER
7. If any programmer is fitted draw attention to the Programmer
Users Instructions and hand them to the householder.
8. Loss of system water pressure
Explain that the dial underneath the boiler indicates the
central heating system pressure and that if the normal COLD
pressure of the system is seen to decrease over a period of
time then a water leak is indicated. In this event a CORGI
registered installer should be consulted. In IE consult a
Competent Person.
WARNING.
Do not fire the boiler if the pressure has reduced to zero from
the original setting.
9. After installation, commissioning and customer hand-over
please complete the
appliance log book and
leave this with the customer. For IE, it is necessary to
complete a “Declaration of Conformity” to indicate
compliance to I.S.813:2002.
10. Stress the importance of regular servicing by a CORGI
registered installer and that a comprehensive service should
be carried out AT LEAST ONCE A YEAR. In IE servicing work
must be carried out by a Competent Person.
11. As the installer you may wish to undertake the service
contract yourself or alternatively offer to the customer the
benefits of the Ideal Care Scheme, details of which are
outlined in the householder pack supplied with this boiler.
1. Hand the User Instructions to the householder and
explain his/her responsibilities under the relevant
national regulations.
2. Explain and demonstrate the lighting and shutting
down procedures.
3. The operation of the boiler and the use and adjustment
of all system controls should be fully explained to the
householder, to ensure the greatest possible fuel
economy consistent with the household requirements of
both heating and hot water consumption.
Advise the User of the precautions necessary to prevent
damage to the system and to the building, in the event
of the system remaining inoperative during frosty
conditions.
4. Explain the function and the use of the boiler heating
and domestic hot water controls.
5. Explain the function of the boiler fault mode.
Emphasise that if a fault is indicated, the boiler should
be turned off and a CORGI registered installer
consulted. In IE contact a Competent Person.
6. Explain and demonstrate the function of time and
temperature controls, radiator valves etc., for the
economic use of the system.
WATER TEMPERATURES
Temperatures can be selected via the CH and DHW
thermostats.
39 GENERAL CHECKS - continued
CH & DHW CONT.
5. Set the central heating external controls to OFF. The
burner should go off and the pump continue to run for
a few seconds.
The display should read:
returning to
when the pump stops.
6. Check the correct operation of the programmer (if
fitted) and all other system controls. Operate each
control separately and check that the main burner
responds.
WATER CIRCULATION SYSTEM
1. With the system COLD, check that the initial pressure is
correct to the system design requirements.
For pre-pressurised systems, this should be 1.0 bar.
2. With the system HOT, examine all water connections for
soundness. The system pressure will increase with
temperature rise but should not exceed 2.5 bar.
3. With the system still hot, turn off the gas, water and
electricity supplies to the boiler and drain down to
complete the flushing process.
Note.
A flushing solution should be used during the flushing
procedure. Flushing solutions: Fernox Superfloc,
Sentinel X300 (new systems) or X400 (existing
systems). Refer to Frame 6.
4. Refill and vent the system, add inhibitor (see Frame 6),
clear all air locks and again check for water soundness.
Affix the water treatment warning label, supplied in the
hardware pack, in a
prominent position on the system, to
prevent the use of incorrect water treatment additives.
5. Reset the system initial pressure to the design
requirement.
6. Balance the system. Refer to Frame 5.
7. Check the condensate drain for leaks and check that it is
discharging correctly.
8. Finally, set the controls to the User's requirements.
Note.
The pump will operate briefly as a self-check once
every 24 hours in the absence of any system demand.
Knob Setting
CH Flow
DHW Outlet
Temp
Temp
o
C (
o
F)
o
C (
o
F)
Max
82 (180)
65 (150)
Min
30 (86)
42 (110)
After completing the installation and commissioning of the system the
installer should hand over to the householder by the following actions:
INST
ALLA
TION
Содержание isar m30100
Страница 1: ......
