Honeywell SV2 Serie Instrucciones De Instalación página 2

SV2 Series Safety Shut-off Valves
WARNING
Explosion Hazard and Electrical Shock Hazard.
Can cause explosion, serious injury or death.
• Do not take valve apart.
• Do not use tools to operate valve.
• Do not use valve if it has been flooded.
• Call serviceman if valve does not work properly.
IMPORTANT
• Disassembly of the valve in the field may cause permanent
damage to the valve and void the factory warranty.
• Fasteners containing lacquer paint indicate non-field
accessible areas.
• Accessory modules may be removed or replaced as
necessary in the field.
CAUTION
If valve has been dropped, do not use it.
• Dropping the valve may cause permanent damage to the
valve.
• Replace entire valve and associated modules before use.
CAUTION
The SV2 Series valve should be used with clean gas free of
particles bigger than 50 micrometers.
To ensure this requirement is met, an external filter element,
such as the Honeywell Kromschroeder GFK or similar, can
be added to the gas supply line.
Fig. 12. Valve mounting position.
NOTICE
DO NOT attempt to change valve electronics side
orientation without consulting the valve user manual.
• Reference document 32-00029 for detailed
instructions on this procedure.
32-A00018M-03
M28663A
Premix Pulse Lines
PORT C
P AIR
10
(3X)
Fig. 15. FARMOD pulse line connections/mounting
IMPORTANT
– The Fuel/Air Ratio Module operates properly only if the
pulse line fittings are properly tightened and the flow
through the pulse lines is un-obstructed.
• Proper measures shall be taken to ensure the pulse
lines are not twisted or kinked during connection and
that they can't be unintentionally kinked after the
installation has been taken into operation.
• Protect pulse lines against damage and keep the lines
free from any contact to potential vibrating surfaces
– In all cases, avoid creating a siphon-like shape.
– A wide variety of pulse line slopes and shapes may be
needed to fit into a particular appliance; best engineering
practice would be '1/2 bubble' on a level (¼ inch of drop
per 1 foot of run or 6mm drop per 0.31m of run). However,
practical limitations may require some deviation from it.
Please consult Honeywell Thermal Solutions with your
particular geometrical arrangement if at doubt.
Fig. 16. V2MU mixing unit pulse line connections.
IMPORTANT (Refer to Fig. 16)
– To avoid condensate from back draft entering any pulse
line of the Fuel/Air Ratio Module, downwards pointing
pressure tabs on the V2MU mixing unit or any other
device shall not be used.
2
VALVE (DIS-)ASSEMBLY SCREWS
PORT A
P GAS
5-1/16 (128)
PORT B
P CC
M36228
DO NOT USE.