© 2021 Carrier
5
WARNING
: ALL ACTIONS RELATED TO THE INSTALLATION, SERVICE AND
OPERATION OF GAS PILOT MAY ONLY BE CARRIED OUT BY A TRAINED AND
QUALIFIED PERSONNEL.
REMARK
: IN CASE OF ANY DOUBTS REGARDING INSTALLATION OF THE PILOT
CONSULT WITH THE MANUFACTURER.
7.
INSTALLATION
During the installation, all components have to be protected from impact or bending.
WARNING: DURING PILOT INSTALLATION THE RECOMMENDATIONS IN THE
APPENDIX 2 SHOULD BE STRICTLY OBSERVED.
Pilot
SP-32-NG/PG-FD
is designed such that its air tube can be welded directly to the burner plate, or placed in the
mounting tube (see Fig. 2).
It should be noted that the distance from the gas head with mounting ring to the burner plate should be not less than
150mm and insertion depth cannot exceed the “L” value – see Fig. 1.
Pilot air tube is made of stainless steel, mounting tube is made of carbon steel - note that for welding.
Note: Particulates entrained in the gas could block the pilot’s gas orifices so gas supply line should be equipped
with an effective strainer unit.
WARNING: STRICTLY OBSERVE THE TEMPERATURE LIMITS FOR PILOT AND
IGNITER ROD MOUNTED INSIDE. IN THE CASE OF EXPECTED WORK AT THE
LIMIT OF PERMISSIBLE OPERATING TEMPERATURES, APPROPRIATE
MEASURES SHOULD BE TAKEN (E.G. CHANGE OF THE MOUNTING POSITION).
WHEN BOILER OR HEATER INSTALLATION IS IN OPERATION ALWAYS KEEP
THE PROPER AIRFLOW OF PILOT COMBUSTION-COOLING AIR.
7.1 MOUNTING TUBE
The mounting tube, if used, should be attached to the burner plate using bolts or welding (see Fig. 2). If it is not
possible to use one of mounting tubes proposed above, a different type can be used, bearing in mind that its inner
diameter should be properly matched to the outer diameter of the pilot air tube to be able to fit and fix the pilot in
a tube with proper clearance.
In the case of application including a mounting tube proceed the following way:
a)
Based on assembly drawings mark and cut a hole in the burner plate with a diameter slightly larger than the
diameter of the mounting tube.
b)
The mounting tube for welding: slide the mounting tube in the hole and set it in the correct position (insertion
depth and proper angle relative to the main burner nozzle position).
c)
The mounting tube for welding: weld using the electrode appropriate for the material.
d)
If the flanged mounting tube is used, bolt it to the burner plate after drilling the correct sized holes.
e)
For both types of mounting tube the clamp assembly with screws and gasket provides a fast and reliable
mounting and dismounting of the pilot.
7.2 GAS ASSEMBLY AND AIR TUBE
a)
The position of the electrical igniter rod tip in relation with the orifice-stabilizer assembly of pilot should be
checked following information in p. 4. The correct position for different types of electrical igniter rods should
be taken into consideration (see Fig. 1).
