Testing Burner Pressure - hurlcon MX 125 Installation And Operating Instructions Manual

1. Set thermostat to "OFF".
2. Remove front access panel.
3. Set up manometer
4. Remove screw from ⅛" brass test point located on outlet side of gas valve or burner
manifold
5. Connect manometer tube to test point
6. Set thermostat to "ON" and wait for main burner to ignite
7. Once main burner has ignited, the manometer must indicate the nominal burner pressure
listed below.
8. To adjust gas valve regulator, remove regulator adjustment cap and, using a screwdriver,
turn plastic bush clockwise to increase, anti-clockwise to decrease burner pressure.
9. When burner pressure is correclty set, set thermostat to "OFF".
10. Replace regulator adjustment cap.
11. Disconnect manometer.
12. Replace screw and fibre washer in test point.
13. Replace front access panel.
Maximum inlet gas pressure is:
Natural Gas
Propane Gas
ULPG
Nominal burner pressure is:
MX 125
Natural Gas 0.82 kPa
116Mj/hr
3.4mm dia
Propane Gas 2.50 kPa
96Mj/hr
1.9mm dia
ULPG 2.00 kPa
82Mj/hr
1.9mm dia
MX Pool and Spa Heater

TESTING BURNER PRESSURE

3.5 kPa
3.5 kPa
3.5 kPa
MX 150 MX 200
0.82 kPa 0.82 kPa
144Mj/hr 192Mj/hr
3.3mm dia 3.3mm dia
2.50 kPa 2.50 kPa
140Mj/hr 190Mj/hr
1.9mm dia 1.9mm dia
2.00 kPa 2.00 kPa
123Mj/hr 164Mj/hr
1.9mm dia 1.9mm dia
MX 250 MX 300
0.82 kPa 0.82 kPa
240Mj/hr 288Mj/hr
3.3mm dia 3.3mm dia
2.50 kPa 2.50 kPa
240Mj/hr 280Mj/hr
1.9mm dia 1.9mm dia
2.00 kPa 2.00 kPa
205Mj/hr 246Mj/hr
1.9mm dia 1.9mm dia
MX 400 MX 500
0.75 kPa 0.78 kPa
350Mj/hr 480Mj/hr
3.3mm dia 3.3mm dia
2.50 kPa 2.50 kPa
350Mj/hr 470Mj/hr
1.9mm dia 1.9mm dia
2.00 kPa 2.00 kPa
312Mj/hr 410Mj/hr
1.9mm dia 1.9mm dia
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