Honeywell SV2 Series User Manual page 87

Fig. 46: FARMOD Filter Maximum screw length
• Due to the variety of possible appliance configurations, pulse line tubing and fittings are sold separately. Refer to
• Replacement of the filter shall be included in the annual appliance maintenance procedures.
Outdoor Air Installations
If air from outside the installation building / room is directly supplied to the fuel-air mixing unit, there is a risk that moisture
content in the sample airflow (air pulse line) will condense. Condensation of water in the air pulse line or the Fuel/Air Ratio
Module shall be avoided to assure proper operation of the appliance.
WARNING!
Direct water ingress (e.g. from mist, rain or pressure
wash) into the pulse lines should be avoided or
prevented
A dehumidification solution was created by Honeywell to discourage potential condensation from entering the pulse lines and
the FARMOD due to moisture-laden air. It is comprised of a FARMOD embedded heater with an available insulation shoe and an
available external heat exchanger as well as appropriate insulation for the pulse lines. All components must be used together as
necessary in applications where there is a potential for moisture content or condensation in the combustion air.
If the potential of condensate formation exists, it is strongly recommended to install the SV2 Series Heat Exchanger kit, which
is available from Honeywell. Refer to
FARMOD a complete condensation/dehumidification solution is provided. If the potential for condensate formation exists and
the complete condensation/dehumidification is not used, any condensation that enters the FARMOD is likely to permanently
damage the system.
If there is never a risk of condensation, meaning the ambient room temperature is above the combustion air dew point at all
times, the complete dehumidification system is not needed. This means adding the additional SV2 Series Heat Exchanger kit is
then not needed.
SV2 Series Safety Shut-off Valves
V2F, V2V
Table 21. When the Heat Exchanger is paired with the heater embedded within the
87
SV2 SERIES SAFETY SHUT-OFF VALVES USER MANUAL
Table 17.