Installation Considerations - Honeywell SV2 Serie Instrucciones De Instalación

SV2 SERIES VALVES MIXING UNITS INSTALLATION INSTRUCTIONS
When Installing This Product...
1. Read these instructions and the appropriate product
literature carefully. Failure to follow them could damage
the product or cause a hazardous condition.
2. Installer must be a trained, experienced combustion
service technician.
3. Check the ratings on the product to make sure the product
is suitable for your application.
4. After installation is complete, carry out a thorough
checkout of product operation as laid out in this
document and documents 32-00018 (SV2 Series safety
shut-off valve Installation Instructions) and 32-00040
(FARMOD Installation Instructions).

INSTALLATION CONSIDERATIONS

IMPORTANT:
• The fittings selected by Honeywell from specific brands and
types assure free sample flow to and from the SV2 Series
fuel/air ratio premix valve.
• If any other fittings are used, the sample flow to and
from the valve can easily get obstructed and affect the
combustion quality.
• For this reason it is strongly recommended to use the
fittings selected by Honeywell.
• The Honeywell fittings for metal tubing are suitable for
either aluminum or stainless steel tubing.
NOTE: Aluminum tubing shall preferable fulfill the following
requirements to mate with the recommended fittings:
– Diameter and wall thickness: 8 x 1 mm.
– Dimensions and tolerances according DIN EN754-7/8.
– Material AW6063 according DIN EN573.
– Tempering T832 according DIN EN515.
– Mechanical properties according DIN EN754-2.
Extension Piping
NOTE: For optimal fuel/air ratio performance, it is
recommended to assemble an extension pipe between
the V2V gas valve and V2MU Mixing Unit as indicated
in Table 1. Alternatively, a 90-degree elbow with an
inner diameter as specified in the table can be used.
Mixing Unit Gas Extension Pipe
Part Number Minimum Length
[mm / in]
V2MU0300 222 / 8.7
V2MU0500
V2MU0800 330 / 13.0
V2MU1000
V2MU2000 425 / 16.7
Table 1. Minimum piping length between V2MU mixing units and SV2 Series valve.
32-00044EFSPIGDC—05
NOTES:
– If a manual safety shut-off valve is assembled between the
gas valve and the Mixing Unit, the MSOV length can be
subtracted from the minimum recommended lengths in
Table 1.
– If the V2MU2000 is assembled directly to the valve, remove
the valve's factory supplied outlet O-ring and mount the
V2MU2000 using its factory supplied O-ring in the flange
of the V2MU2000 for sealing purposes.
– Shorter pipe lengths may be possible but must be tested to
ensure acceptable performance.
Mixing Unit
Part Number
V2MU0300
V2MU0500
V2MU0800
V2MU1000
V2MU2000
Table 2. Provided fastening materials.
Pulse Line Assembly
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.
- Recommended tightening torque for all fittings is 6 ± 1.2
- To assemble the aluminum tube and fitting, first tap the
- Proper measures shall be taken to ensure the pulse
- Protect pulse lines against damage and keep the lines
• 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 about 6 mm drop per 0.31 m of run).
However, practical limitations may require some deviation
from it. Please consult Honeywell Thermal Solutions with
your particular geometrical arrangement if in doubt.
Gas Elbow Inner
Diameter
[mm / in]
44.3 / 1.74
66.0 / 2.60
84.9 / 3.34
Fig. 2.
2
M5 x 14 mm M8 x 16 mm
4 --
-- 4
-- --
Nm (53.1 ± 10.6 in-lbf).
reinforcing sleeve into the tube (with the smooth side
of the sleeve ahead). Then fit the tube into the fitting
and tighten the nut until you can feel a contact. Finally
tighten with 1.5 turns of the nut.
lines are not twisted or kinked during connection and
that they can't be unintentionally kinked after the
installation has been taken into operation.
free from any contact to potential vibrating surfaces.
DO NOT USE.
V2MU mixing unit pulse line connections.
Nut
M8 x 20 mm (M8) Washer
-- -- --
-- 4 4
4 4 --