Honeywell SV2 Series User Manual page 72

SV2 Series Safety Shut-off Valves
Models
For detailed specifications, refer to Table 16.
FARMOD14-000
FARMOD44-000
NOTE: Premix valves come with assembled and tested FARMODs from the factory. The above part numbers are for field
replacement purposes only.
Mounting
The Fuel/Air modules are factory assembled to the V2V valve models and tested. It is not allowed to assemble the valve with the
Fuel/Air Module pointing downwards.
Four (4) M4x40, T-20 torx screws
Maximum tightening torque 2 ± 0.2 Nm (18 ± 2 in-lbf)
IMPORTANT
The FARMOD is designed and tested to be directly mounted to the valve.
Honeywell has tested and confirmed the FARMOD performance with the FARMOD mounted directly to the valve on the same
side as the electronics with the factory provided length of cable against EMC standard FCC 15 Part B Class A, EN/UL 60730-1
and EN 13611 at industrial levels.
Environmental Ratings
NEMA 1/IP20 or NEMA 4/IP66 with sealing cord grip
Operating Temperature Range
All versions: +5°F to 145°F (-15°C to 63°C)
Air Pressure Differential
15 Pa to 3200 Pa / 0.059 to 12.6 in w.c..
Delta P across FARMOD air inlet to the Pref outlet
Gas Pressure Differential
FARMOD14/44 types: 3.75 to 2560 Pa / 0.015 to 10 in w.c.
Delta P across FARMOD gas inlet to the Pref outlet
Approvals
The Fuel/Air Module is not a stand-alone product and must be used with a SV2 Series valve and thus is specified as part of the
valve approvals.
Amplification Factor Accuracy
The achievable accuracy or repeatability of the amplification factor depends on the adjusted value.
The figure below shows the typical achievable amplification factor accuracy of a commissioned fuel /air control system.
Documentation
32-00040, Fuel/Air Module Installation Instructions
72 32-00029—02