IDEAL F400, Установка и обслуживание

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38
xtra
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Installation & Servicing
INSTALLATION
46 INITIAL LIGHTING
NOTE.
MASTER MODULE LEADS THE SLAVE MODULE WITH
SYNCHRONISED FIRING
1.
Check that the system has been filled and the boiler is not
air locked - air in the boiler could damage the heat
exchanger. For this reason if an automatic air vent has
been fitted it must never be off.
2. Check that all the drain cocks are closed and any valves in
the flow and return are open.
3. Check that the GAS SERVICE COCKS ARE OPEN.
4. Check the indication on the pressure gauge. If the
pressure is less than 0.8 bar the installation should be
filled up first (sealed system only).
5. Switch the electricity supply ON to both modules and check
that all the external controls are calling for heat. Check
burner switch is set to on (Master module only).
6. The Master module will commence the ignition sequence.
The circulation pump is energised, whilst operating a DHW
valve if required. The fan is run up to starting speed and
the air pressure switch activated. The fan then carries out a
pre-purge before moving to ignition speed. A spark is
started and the gas valve opens. Ignition must occur in 3
seconds and once detected the module starts operating.
7. The Slave module will now start to operate as described in
no. 6, follow the sequence to ignition and operation. After
the stabilisation period both modules modulate to achieve
the set flow temperature at a restricted ramp up rate. As
each module gets within 10
o
C of the set point it is free to
modulate at normal rate.
If after 5 attempts the module has failed to light then it will
lock out. Press the reset button to restart the ignition
sequence.
8. The gas valves are preset at the factory to nominal values.
Dependant on site installation conditions (e.g. flue length)
the module performance can vary slightly. To check the
performance, measure the CO
2
values at maximum and
minimum rates whilst adjusting the gas valves if necessary
(Refer to Frame 51).
9. Operate the boiler for 10 minutes and check the gas rate
(Table 1). You should obtain a value at least 90% of the
nominal.
10. Set all the Module parameters (Master and Slave) to
appropriate settings (refer to Frame 35).
11. Fit outer fascia panel to Slave Module and secure with 2 x
M5 screws.
12. Fit the front panel by engaging the bottom retaining lugs
and then pushing home.
Make the following checks for correct operation.
1. The correct operation of ANY secondary system controls
should be proved. Operate each control separately and
check that the main burner or circulating pump, as the case
may be, responds.
2. Water circulation system;
a. With the system HOT examine all water connections for
soundness.
b. With the system still HOT, turn off the gas, water and
electricity supplies to the boiler and drain down to
complete the flushing process.
c. Refill and vent the system, clear all air locks and again
check for water soundness.
d. Balance the system.
3. Check the condensate drain for leaks and check it is
discharging correctly.
4. Finally set the controls to the User's requirements.
Note. If optional kits are fitted then refer to the instructions
supplied with the kits.
47 GENERAL CHECKS
45 COMMISSIONING AND TESTING
A. ELECTRICAL INSTALLATION
1. Checks to ensure electrical safety should be carried out
by a competent person.
2. ALWAYS carry out the preliminary electrical system
checks, i.e. earth continuity, polarity, resistance to earth
and short circuit, using a suitable meter.
WARNING. Whilst effecting the required gas soundness test and purging air from the gas
installation, open all windows and doors, extinguish naked lights and DO NOT SMOKE.
B. GAS INSTALLATION
1. The whole of the gas installation, including the meter,
should be inspected and tested for soundness and
then purged in accordance with the recommendations
of the relevant standards listed on page 4.
In IE refer to I.S.820:2002.
INST
ALLA
TION