Owner`s manual

SCOTTY SS – INSTRUCTION MANUAL

Scotty SS Nov-05

2.8 Control System

The fan and limit control and the damper motor should be located as shown in Figure

S202-2.

T822 – Room Thermostat – Wood Furnace

The primary control is the room thermostat located near the center of the house in the

main floor or near an existing thermostat. The thermostat operates the damper motor to

open and close the damper door thus allowing more or less air into the combustion area

to control the fire.

M847 – Damper Motor

The damper door lever should be attached to the damper motor wheel with the chain

included. Be sure the damper door is fully closed and the damper motor is not

powered. Connect the chain to the damper door level and to the bottom hole in the

damper motor wheel. As a final adjustment bend the top chain link slightly to vary the

damper position.

L4064R – Wood Furnace/Limit Control

The fan and limit control mounted in the plenum controls the operation of the circulating

blower and limits the air temperature to prevent the furnace from overheating.

Set Points

1. “ON” is usually set to 140?F (60°C). It turns on the circulating blower when the air

temperature in the plenum reaches this temperature.

2. “OFF” is usually set to 100°F (38°C). It turns off the circulating blower when the

circulating air temperature in the plenum drops to this temperature.

3. “Hi limit” is preset to 280°F (138°C). This will over ride the room thermostat to close

fire damper door if the wood furnace overheats.

ALL ELECTRICAL WIRING MUST CONFIRM TO NATIONAL AND LOCAL CODES.