Williams 3003612 Thermostat Installation cont, Thermostat Connection at Gas Valve, V Luams

Models: 3003612 3003611 2203612 1403612 2203611 1403611

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Thermostat Installation (cont.)

Thermostat Installation (cont.)

6.Snag thermostat cable through wall so that 6 inches of cable protrudes.

7.Route cable to wall furnace leaving enough excess cable to make the connections at the gas valve.

MOUNTING THE THERMOSTAT

1.To remove the thermostat cover, grasp cover and pull straight outward. Carefully remove and discard the

packing tab protecting the switch contacts.

2.Connect thermostat wires to the terminal screws on the back of thermostat base.

3.Push any excess wire back through hole in wall and plug hole with insulation to prevent drafts from affect- ing thermostat operation.

4.Being sure to level thermostat for best appearance, fasten thermostat base to wall through mounting holes with screws provided.

5.Replace the thermostat cover.

NOTE

Refer to installation instructions packed in the thermostat carton if you have any doubt about the above procedures.

Thermostat Connection at Gas Valve

MODELS 1403622, 1403621, 2203622, 2203621, 3003622 and 3003621

(All other models are equipped with a built-in thermostat)

1.If an old thermostat is being replaced and is in a satisfactory location and the wiring appears to be in

good condition, use existing wiring. If in doubt, use new wire.

2.If a new location is chosen or if this is a new installa- tion, thermostat cable must first be run to the location selected. All wiring must agree with local codes and ordinances. These instructions cover bringing the wire

down from the attic but it can be run from a basement or crawl space using similar methods.

3.Before drilling hole in wall at selected location, drive a small finishing nail through the ceiling in the corner of the wall and ceiling above the thermostat location.

Pull the nail out and push a small stiff wire through the hole so it can be found in the attic. Drill a 1/2 inch hole

through the ceiling wall plate.

4.Probe for obstructions in the partition. Then drill a 1/2 inch hole through wall at selected location for thermostat.

THERMOSTAT

GENERATOR

 

INNER CASING

£D WIRE

WHI'I_ WIRE

1

V LUAMS

 

(r

_) _i SHIELD

P121200

 

 

 

(OR)

_)¢mm.o _

 

 

P171600

JUMPER

PILOT

 

 

 

 

 

 

OBSERVATION

 

 

WILUAMS P295200A (OR) P295201A

DOOR

WIRES

 

(:PEEP-HOLE

 

 

 

 

 

GENERATOR THERMOSTAT

COVER)-MANUAL

SPARK iGNITOR

PRESS

DOORREPEATEDLY

GROUND

 

JOINT

UNION

CONTROL

FITTING

 

 

VALVE

DRIP

LEG

MANUAL

SHUT-OFF

GREEN KNOB

 

VALVE

RG. 13

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Williams 3003612, 2203611, 2203612 Thermostat Installation cont, Thermostat Connection at Gas Valve, V Luams, i SHIELD