Johnson & Starley 42-451-09, Инструкции по установке, пусконаладке и обслуживанию, Страница: 13 / 32

13
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FIGURE 6. FAN PERFORMANCE GRAPH
13. COMMISSIONING
13.1 PREPARATION
After installation of the appliance, you MUST do the following:
13.1.1 Test for gas leakage using proprietary detection fluid and seal any leaks found.
13.1.2 Carry out preliminary electrical system checks.
13.1.3 Ensure that:
a. filter, fan and fan compartments are free from obstructions.
b. all registers or grilles are open and conform to design specifications.
c. return, relief and ventilation air installations are adequate.
13.2 SYSTEM BALANCING
13.2.1 Set the air heater electrical supply
ON
.
13.2.2 Set the thermista-stat to the “SUMMER AIRFLOW” position ‘ I ’.
13.2.3 Balance the system to provide the required volume proportions at the warm
air outlets.
NOTE:
If the system includes ceiling diffusers,
the air through these should be NOT LESS
THAN 1.5m/s (300ft/min), except for very
small rooms, (i.e. bathrooms etc.). Outlet
faces may require partial blanking in order
to achieve this.
13.2.4 Set the SUMMER AIRFLOW switch to ‘ 0 ’.
13.3 LIGHTING IGNITION & MAIN BURNER
WARNING: If the pilot light is extinguished either
intentionally or unintentionally, no attempt should be
made to relight the gas for a minimum of 3 minutes.
Ensure Electrical supply, time control and Selector
switches are set to ‘
OFF ’.
13.3.1 Set the Thermista-stat/room thermostat to
its lowest or
OFF
setting.
13.3.2 On the Multifunctional Control, remove the
Outlet Pressure test point cover, and fit a
pressure test gauge, refer Figure 9.
13.3.3 Turn the heater Gas supply ON , test for gas tightness and purge the whole gas pipe as described
in BS 6891.
13.3.4 Referring to Figure 9, press and hold the OPERATING CONTROL, and whilst observing the Pilot
Burner, repeatedly press the Piezo igniter button until the Pilot Burner ignites.
13.3.5 After 20 seconds release the Multifunctional Control OPERATING CONTROL and let it spring out;
ensure that the Pilot Burner remains alight. If the Pilot Burner extinguishes, rotate the OPERATING
CONTROL clockwise to the ‘

’ position and ensure that the OPERATING CONTROL is fully reset. Wait
three minutes and repeat steps 13.3.4 and 13.3.5, holding the OPERATING CONTROL depressed
for a longer period, until the Pilot burner remains alight.
13.3.6 With the Pilot Burner lit, depress the OPERATING CONTROL and turn it to the position indicated by
the flame symbol.
13.3.7 Ensure that the pilot flame envelops the thermocouple
tip, see Figure 7.
13.3.8 Set the Heater Electricity supply ON .
13.3.9 Set the Time Control to the required Heating On periods.
13.3.10 Set the Selector switch to ‘TIMED’.
13.3.11 Set the Thermista-stat or room thermostat to MAXIMUM.
13.3.12 Ensure that the Main Burner has now ignited.
13.3.13 Test for gas leakage at the supply, Multifunctional
Control, Pilot and Main Burners using proprietary
detection fluid, sealing any leaks found.
13.3.14 Allow the heater to operate for a minimum of 15 minutes
to ensure stability.
FIGURE 5.
ELECTRICAL DOOR ASSEMBLY
FIGURE 7. ELECTRICAL DOOR ASSEMBLY
PILOT
BURNER
THERMOCOUPLE
ELECTRODE
mbar in.wg
0.50 0.20
0.375 0.15
0.25 0.10
0.125 0.05
300 400 500 600 700 800ft³/min
0.14 0.19 0.24 0.28 0.133 0.08m³/sec
AIR VOLUME
RESIST
ANCE EXTERNAL TO HEA
TER