Tjernlund SS1R SideShot (Discontinued Version - Pre UC1 Universal Control) 8504046 Rev 05/95 User Manual

Page 14

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INSTALLATION OF R1 RELAY AND JUNCTION BOX EXTENSION (DIAGRAM R)

1. Install the junction box extension only after the wiring has been completed.
2. Rotate the junction box extension so that the R1 relay locates to the front. (toward the cabinet door)
3. Align the junction box extension to the top of the existing burner motor junction box.
4. Insert and start the 2 1/2” sheet metal screws to locate the junction box extension to the existing junction box.
5. Install the R8184G primary control and tighten the 2 1/2” sheet metal screws.

SEQUENCE OF OPERATION WITH SS1-R INSTALLED ON OIL FIRED APPLIANCES:

When the thermostat calls for heat, the circuit across the T-T terminals on the Honeywell 8184G burner control is completed. This
causes 120V to be applied to the orange wire that exits the bottom of the 8184G control. The orange wire applies power to the O
and B contacts on the SS1-R’s terminal strip. The O contact on the terminal strip supplies 120V to terminal 4 on the SS1-R
timer/relay which causes 120V power to be supplied by the M terminal to the SS1-R motor. Terminal M also supplies power to the
120V coil on the R1 relay which acts to supply power to the furnace burner motor and transformer. When the SS1-R inducer
motor attains running speed, the contacts on the fan proving switch will close. This provides power to the oil solenoid valve caus-
ing it to open so that oil can flow and ignition can occur.

Once the thermostat is satisfied, the Honeywell 8184G burner control will remove 120V power from the orange wire exiting its
base. As a result, the oil solenoid valve snaps closed and causes the burner flame to be extinguished. A loss of power to terminal
4 of the SS1-R timer/relay signals the beginning of the post-purge period. The M terminal on the timer/relay will retain 120V power
until the end of the post purge period. The SS1-R inducer motor and the oil furnace burner motor will both operate during the post
purge period. However, no flame will be present because the oil solenoid valve will prevent oil from flowing.
Note: When power is initially applied to the system, the furnace burner and SS1-R inducer motor will go through a “post-purge”
period. If there is not a call for heat, there will be no oil ignition during this period. This “post-purge” action can be expected
immediately following a power interruption.

SELECTION OF PRESSURE SWITCH BLEED ORIFICE

In order for the SS1-R pressure switch to function properly for the intended application, the proper bleed orifice has to be selected
as determined below.

1. Upon installation, if the furnace input rate is 1 gallon

per hour or less (140,000 BTU/hr. or less), then the
plug should be installed in the pressure switch.

2. Upon installation, if the furnace input rate is greater

than 1 gallon per hour or 140,000 BTU/hr., then the
#33 bleed orifice should be used.

3. Once the proper bleed orifice has been determined,

install into bleed orifice port as shown in Diagram S.

DIAGRAM S

ISOMETRIC VIEW

PLAN VIEW

DIAGRAM R

DRILL 1” DIAMETER
HOLE, INSTALL
GROMMET, STRAIN

RELIEF OR CONDUIT
FITTING

RIGHT SIDE OF

RHEEM, RUUD,
WEATHERKING OR
HEAT CONTROLLER

FURNACE

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