Field Controls 46256400 Manual page 11

C -81 C K W
K ONTROL IT IRING
1. Remove wiring harness from control kit
box.
2. Remove top knockout from the thermostat.
Push the snap bushing supplied over the
knockout hole created to prevent the wires
from being chafed. Insert wire harness
through bushing hole in thermostat top.
3. Disconnect the white jumper lead, the
white, and red leads from the thermostat
terminals. Reconnect the white wire from
the gas valve to terminal #3 (lower left) on
the thermostat. Cut the tongue terminal
from the end of the red wire to the
thermostat and strip 0.5" of insulation to
expose bare wire. Connect to bare end of
red wire from harness using wire nut or
crimp butt connector to join wires inside
thermostat housing.
4. Connect the black and yellow 24 volt wires
from the harness to the two (2) top
terminals of the thermostat.
5. Run the harness supplied along the water
heater jacket and support with the clamps
provided.
6. Install the GSK-3 spillage switch on the
draft hood with the self-tapping sheet metal
screw supplied. The thermal element disc
should hang just below the draft hood relief
opening. (See Figure 10)
7. Run the two (2) red wires from the break in
the top of the harness into the spillage
switch through the plastic bushing opening
and connect to the switch terminals.
8. Run the harness to the CK-81 junction box, which will be mounted in a convenient location near the power venter.
Use clamps to support the wire harness to the joists ar regular intervals to prevent sagging.
9. Run the harness wires through the hole with the plastic bushing in the control box and connect the wires as follows:
Connect the black wire to terminal T1, the yellow wire to T2, the blue wire to T3, and the red wire to T4. (See Wiring
Diagram, Figure 14)
10. Follow the National Electrical Code and or applicable local codes for running high voltage wires to the CK-81 control
box and wire according to the diagram. Unit must be grounded. Check ground circuit to make sure the unit has been
properly grounded. Connect the flexible conduit from the blower to the control box and wire according to the diagram.
11. Attach the appropriate self-adhesive wiring diagram label to the water heater jacket.
F M W H
OR ILLIVOLT ATER EATER
C
ONTROLS
Page 11
Figure 13