Figure 1
Figure 2
OPERATION:
The GSK-160A is a normally closed single-pole, single throw (SPST) thermally-activated switch that is intended to be wired in series with the burner control safety circuit of an 80+ efficiency-rated, fan-assisted, gas- fired appliance. When subjected to temperatures above approximately 160°F, the switch will open, interrupting the safety circuit, thereby preventing the burner from firing. When allowed to cool, the switch will automatically reset, allowing the burner to fire. Activation of the GSK switch may cause burner lockout on some appliances.
INSTALLATION ON DRAFT CONTROLS:
NOTE: GSK style switches are designed for mounting on draft control models 4” MG1 through 9” MG1. Larger size draft controls required the FTS series switches.
UNIT WITH MG1 DRAFT CONTROL SUPPLIED WITH GSK IN A KIT:
1. Mount the switch onto the threaded stud on the top front of the MG1, using the supplied 8-32 locking nut.
2.Swing the gate in and out to verify smooth operation through the range of operation.
UNIT WITH DRAFT CONTROL SUPPLIED SEPARATELY:
1.Mount the switch with the supplied #5-40 machine screw and nut on the top front of the MG1. (Note, the head of the screw is to be on the inside of the ring. (See Figure 2)
2.Swing the gate in and out to verify smooth operation through the range of operation.
INSTALLATION LOCATION:
For single-appliance venting applications, install the draft control with GSK-160A directly above the appliance as shown in Figure 3, unless otherwise instructed by the
appliance manufacturer. For co-venting applications with an atmospheric-burner-equipped appliance (such as a water heater), install the draft control with GSK-160A immediately below the tee or wye fitting, as shown by the dashed lines in the figure, to help prevent spillage at the water heater. A Field Controls BarohoodTM with one GSK-3 mounted (recommended) or two GSK-3 spill switches mounted on the draft hood (available in kit SSK-1), wired into the thermocouple circuit (use one TCA-1 for either method) is recommended for additional safety.
Figure 3
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