Tjernlund SS1 SideShot (Discontinued Version - Pre UC1 Universal Control) 8504041 Rev A 11/99 User Manual

Page 20

Remove the external control wire attached to terminal
"O" of the SideShot terminal strip. This should cause
the motor to shut down within ten minutes (after the
post-purge cycle has finished).

SideShot and appliance are not interlocked correctly.
Voltage is present at terminal "O" constantly. Voltage
should cycle on/off with appliance cycles. Refer to
electrical diagrams in this manual. Rewire according
to appropriate diagram.

Replace Timer/Relay,

Part #950-1067.

Yes

SYMPTOM 1: SIDESHOT MOTOR RUNS CONTINUOUSLY

Set draft adjustment according to "Draft
Adjustment Procedure" on Pages 16 & 17.

SideShot and appliance are not interlocked
correctly or malfunction of appliance controls.
Refer to electrical diagrams in this manual and
appliance manufacturer's troubleshooting guide.

Remove blockages or crimps. Replace tube
if it leaks.

Replace High Limit Switch
Part #950-0640.

Replace Fan Proving Switch
Part #950-0650.

Check firing rate of appliance and "equivalent"
vent pipe length. They should not exceed the
maximum capacity of the SideShot.

CAUTION: Do not operate appliance until source
of excessive heat has been determined. Check
for Vent Hood blockage or burner malfunction.

Step1.
Verify draft adjustment has been made.

Step 2.
With the appliance calling for heat and SideShot
operating, verify proper control voltage exists
between terminals "Y" and "R" of terminal strip.

Step 3.
Check Fan Proving Switch tube for clear passage.

Step 4.
Verify adequate draft at Fan Proving Switch.
Draft Gauge should read -.07" w.c. minimum at
Fan Proving Switch Test Port.

Step 5.
Check Fan Proving Switch for electrical continuity.

Step 6.
Reset the High Limit by depressing the button
located on the center of the switch. Appliance
should operate.

Yes

No Voltage

Tube is Clear

Yes

Voltage

Exists

SYMPTOM 2: APPLIANCE WILL NOT OPERATE, BUT SIDESHOT DOES