11
Telephone: 01604 762881
11.4 MAIN BURNER PRESSURE TEST
NOTE: AIR HEATER BURNERS ARE FACTORY SET TO PROVIDE A NOMINAL HIGH RATE
OUTPUT AS DETAILED IN TABLE 4
11.4.1 Loosen the screw on the outlet pressure test point and fit a pressure test gauge (see Figure 7)
11.4.2 Check the gauge reading against the information at Table 4.
11.4.3 If necessary, use the burner pressure adjuster to obtain required gauge reading in accordance with
Table 4.
11.4.4 Remove the pressure gauge and re-tighten screw on the outlet pressure test point.
AIR HEATER
LOW RATE
HIGH RATE
WATER CIRCULATOR
kW
MJ/h
Btu/h
kW
MJ/h
Btu/h
kW
MJ/h
Btu/h
INPUT
9.8
35.3
33,500
12.25
44.1
41,800
4.86
17.5
16,600
OUTPUT
7.3
26.4
25,000
9.4
33.8
32,000
3.5
12.6
11,900
GAS RATE CV 1037 Btu/ft³
0.93m³/h (32.9ft³/h)
1.15m³/h (40.5ft³/h)
0.458m³/h (16.2ft³/h)
BURNER SETTING PRESSURE (HOT)
10.0mbar (3.6” wg)
14.6mbar (65.8” wg)
15.0mbar (6.0” wg)
MAIN INJECTOR
POLIDORO AL 270
AMAL 3187/001/400
11.5 AUTOMATIC CONTROLS CHECK
11.5.1 Light the ignition and main burners as detailed in 11.3.
11.5.2 Allow the heater to operate for 15 minutes to ensure stability.
11.5.3 After a short period, ensure that the fan increases to full speed.
11.5.4 When the temperature reaches the control setting, check that the main burner cycles ON and OFF at
intervals of approx. 75 to 120 seconds.
REMINDER: At all times of commissioning, complete all the relevant sections of the
Benchmark Checklist located on the inside back pages of this document prior to
handing over the appliance to the occupier.
11.6 SAFETY CHECK
In order to check the correct operation of the control module, run the heater for a short period and introduce a fault condition
by carrying out the following sequence:
11.6.1 Check for gas soundness
within the appliance.
11.6.3 Turn on both the gas and
electrical supplies to the
heater.
11.6.4 Set the “AIR HEATER” switch
on the time control unit to
“CONT”.
11.6.5 Light the ignition and main
burners as described in
section 11.3
11.6.6 Allow the heater to run for
a period of 5 minutes to
stabilise.
11.6.7 Turn off gas supply to heater
at the heater Gas Cock. DO
NOT TURN OFF AT GAS
METER!
11.6.8 Having detected the fault condition, the module should cause the red LED on the indicator panel to flash and the
module will go through the ignition sequence. Having detected the fault condition a second time, the control module
should cause the heater to go into lockout, indicated by a constant red LED and the LED status indicator will show “6”.
11.6.9 Reinstate gas suppiy and wait for a minimum period of 10 seconds.
11.6.10 Depress the “RESET” button on the Indicator Panel.
11.6.11 The heater will go through its ignition procedure and the ignition and main burners SHOULD ignite.
11.6.12 Set the “AIR HEATER” switch on the time control unit to “TIMED”
TABLE 4
MAIN BURNER PRESSURE SETTING
mbar
in.wg
0.50
0.20
0.375 0.15
0.25
0.10
0.125 0.05
200
250 300 350 400 ft³/min
0.09 0.12 0.14 0.17 0.19 m³/sec
Air Volume
TABLE 3
FAN PERFORMANCE CURVE
R
esistance External to Heater
Summary of Contents for ECONOMAIRE 32
Page 19: ...19 Telephone 01604 762881 FIGURE 12 CONTROL FLOWCHART 17 DIAGNOSIS FLOWCHARTS...
Page 20: ...www johnsonandstarley co uk 20 FIGURE 13 AIR HEATER DIAGNOSIS FLOWCHART...
Page 21: ...21 Telephone 01604 762881 FIGURE 14 CONTROL FLOWCHART...
Page 22: ...www johnsonandstarley co uk 22 18 LOGIC DIAGRAM FIGURE 15 LOGIC DIAGRAM...
Page 23: ...23 Telephone 01604 762881 3 19 SCHEMATIC DIAGRAM FIGURE 16 SCHEMATIC DIAGRAM...
Page 25: ...25 Telephone 01604 762881 21 DIMENSIONS FIGURE 18 DIMENSIONS...
Page 27: ...27 Telephone 01604 762881 FIGURE 19 EXPLODED DIAGRAM 23 EXPLODED DIAGRAM...
Page 31: ......
