Field Controls SWG-AF Série Mode D'emploi page 12

THE WMO-1 BLOCKED VENT SWITCH
This device is intended to detect a blocked vent system, responds to hot flue gasses
backing up through its heat transfer tube, and must be wired to shut off the burner feed
system according to the appliance manufacturer's instructions. It requires manual
resetting.
WARNING: This device MUST be installed by a qualified agency* in accordance
with the manufacturer's installation instructions.
*The definition of a qualified agency is: "any individual, firm, corporation or
company which either in person or through a representative is engaged in, and is
responsible for, the installation and operation of solid or bio-fuel appliances, who is
experienced in such work, familiar with all the precautions required, and has
complied with all the requirements of the authority having jurisdiction".
WARNING: Read the installation instructions carefully and completely before proceeding with the installation.
WARNING: Do NOT reset the device or restart the appliance unless the cause has been identified and
corrected by a qualified agency. Insure the switch appliance combination has been cleaned by a qualified
agency before placing back into service. Annual inspection and cleaning by a qualified agency is required.

Wiring MUST be in accordance with the current Canadian Electric Code and any other applicable federal,
provincial, local code requirements and appliance manufacturer instructions.

For installations in the USA, all wiring shall be in accordance with the National Electrical Code, applicable local
codes and appliance manufacturer instructions.

For continued safe operation, the appliance-switch combination is required to be inspected and maintained annually
by a qualified agency. Failure to properly maintain the appliance-switch combination can lead to Death, Personal
Injury and or Property Damage.
INSTALLATION
M
OUNTING IN THE VENT PIPE
SEE THE APPLIANCE MANUFACTURER'S INSTRUCTIONS FOR THE SPECIFIC LOCATION.
IF THE APPLIANCE MANUFACTURER DOES NOT SPECIFY A LOCATION, REFER TO FIGURE 21.
1. Drill or pierce a clean hole (3/4 ± 1/32" diameter) in the vent pipe near the appliance vent outlet. (See Figure 18)
2. The heat transfer tube must have the fiber gasket installed against the mounting plate before attaching the unit to the
vent pipe.
3. Insert the heat transfer tube with gasket into the 3/4" diameter hole placed in the vent pipe during step 1.
4. Secure the assembly to the vent pipe with a minimum of 4 sheet metal screws. The channel must be mounted
horizontally, unless specified differently by the appliance manufacturer. (See Figure 17)
WARNING: Disconnect electrical power supply to the appliance when wiring the blocked vent switch.
WARNING: Switch connection channel must be mounted horizontally, unless specified differently by
the appliance manufacturer.
CAUTION: The switch must be mounted to a single wall chimney connector unless specified differently by the appliance
manufacturer.
Page 12
Model: WMO-1