Tjernlund 950-2064 L-185 Safety Interlock Kit 8504020 Rev 3 09/96 User Manual
Page 2
SAFETY INTERLOCK TEST
1.
Turn on fuel supply to the appliance.
2.
Remove vent connector from vent breaching at joint above Linear Limit Spillage Sensor,
(See Diagram C1).
3.
Block vent connector with sheet metal or other non-combustible material, (See Diagram C2).
4.
Adjust thermostat to call for heat allowing burner to fire.
RESULT: Spillage will emit from draft hood, diverter or barometric control. In less than two min-
utes, Linear Limit Spillage Sensor will open, preventing thermostat signal from reaching burner. If
Linear Limit does not open, check for vent pipe leakage. Seal leaks and repeat steps 1-4.
5.
Wait 2-3 Minutes...Push reset button on Linear Limit Sensor Switch.
6.
Reconnect vent pipe to venting system. CAUTION: Metal vent pipe may be HOT!
COMBUSTION AIR TEST
1.
Close all doors and windows of the building. If appliance is installed in utility room or closet, close
the entrance door to this room. Close fireplace dampers.
2.
Turn on clothes dryer. Turn on all exhaust fans, such as range hoods, bathroom exhausts and
whole house fans to maximum speeds.
3.
Place in operation the appliance that the L-185 has been installed on. Set thermostat for continu-
ous operation.
4.
Allow fans and appliance to operate for 5 minutes.
5.
Tripping of the Linear Limit Spillage Sensor circuit during the 5 minute appliance operation indi-
cates an unsafe operating condition. Check appliances for venting malfunction and check for ade-
quate combustion air. Turn off fuel supply to appliance and DO NOT OPERATE UNTIL UNSAFE
VENTING CONDITION IS INVESTIGATED BY PROFESSIONAL CONTRACTOR OR UTILITY
SERVICE PERSONNEL.
6.
Return all windows, doors and fans to their previous conditions of use.
NOTE:
For further assistance contact the Tjernlund Products, Inc. Customer Service Department
at 1-800-255-4208. 7:30 AM-4:30 PM CST.
REV. 3, 9/96
© 1996 TJERNLUND PRODUCTS, INC.
P/N 8504020
The L-185 Linear Limit Safety Interlock System is designed to alert the user to a potentially
hazardous condition. It is not designed to, and cannot replace regular chimney inspection,
appliance servicing and combustion testing. DO NOT USE THE L-185 AS A SUBSTITUTE
FOR PROFESSIONAL APPLIANCE MAINTENANCE.
DIAGRAM C1
DIAGRAM C2