Reznor OUH 100, Инструкция по установке и эксплуатации

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1.9.3 Single pipe system (gravity feed)
For installations where the oil tank is 200mm or more above the level of the fuel pump the principle of gravity feed may
be used.
The draw off point for the supply to the burner must not be positioned any lower than 100mm above the bottom of the
tank.
Where a return valve is fitted this must be tamper proof to prevent inadvertent operation.
CAUTION
If the valve is closed when the pump is running the oil pressure can be increased sufficiently so as to cause
damage to the seals within the pump.
The return oil should preferably be discharged through an elbow onto a tank plate situated within the tank, this should
be positioned so as not to introduce air or air bubbles into the draw off pipe.
1.9.4 Two pipe system
This is used where the oil storage tank is lower than the pump.
Access for the fuel feed to the burner should be via a suitable tapping made in the top of the tank, and the fuel feed
pipe should extend to not less than 100mm above the bottom of the tank.
A none return valve with a metal to metal seat should be fitted, especially if the return pipe work is terminated at a level
above the draw off tube. The non- return valve must be removable for service and maintenance purposes, and the
return pipe from the pump must therefore be extended down into the tank to the same level as the suction pipe.
The presence of a tamper proof isolating valve fitted within the return pipe is only required if there is a risk that oil will
siphon out of the tank if the return pipe is disconnected at the pump during maintenance or servicing and if the none
return valve has been omitted.
CAUTION
The Deareator must be fitted the burner side of the inlet fuel filter
Maximum lift should not exceed 3.5 metres, and the vacuum should not exceed 0.4 bar.
Each heater must have a separate fuel supply.
It is strongly recommended that the separate manual concerning the operational details of the burner supplied
with the heater as part of the information package is studied prior to installation.
1.9.5 Pressurised ring main system
This system is used to supply a number of units from a common storage tank.
A booster pump is used to provide the pressure to push the oil around the ring main and back to the tank.
Pressure reducing valves should be fitted on the delivery pipe to each heater to ensure that the pressure at the burner
pump is less than 6 psi.
CAUTION
The internal by-pass plug must be removed from the burner pump when used in a pressurised ring main
application.
1.9.6 Pipe work and fittings
WARNING
Galvanised or plastic pipe work and fittings must not be used. (see BS 5410 Part 1 1997)
CAUTION
All joints must be sealed properly, if necessary using PTFE tape or other approved sealing media.
The pipe work must be effectively sealed so as to prevent the ingress of air.