TJERNLUND CIC1 Operation Manual

The CIC1 is the standard interlock control for use with Tjernlund's COP2 Constant Operating Pressure Control. It incorporates a UC1
burner interlock control with an isolation relay used to close the C1 and C2 actuation contacts of the COP2 Controller. This instruction
covers the interface of a UC1 burner interlock control with a COP2 constant operating pressure controller. IMPORTANT: Follow all
cautions, warnings and burner interlock directions within the UC1 instructions.
WARNING
The burner interlock feature is not activated unless jumper(s) is installed
as depicted in OPTION 3 or 4 of the COP2 wiring diagram. Failure to add
jumper(s) will result in unsafe operation of the COP2 Control. Do not use
Option 1 or 2.
OPTION 3: Exhaust with CIC1 Interlock
OPTION 4: Exhaust with CIC1 Interlock, No Overdraft Fault
Refer to COP2 Wiring diagram in COP2 instructions for complete diagram.
1. Install the included activation isolation relay in the square knock-out located on top of the COP2 electrical box.
2. Wire the Black (MTR) and White (N) leads from the UC1 whip to the Black and White leads of the activation isolation relay.
3. Remove female quick connect terminals on Blue and Yellow leads from UC1 cable whip. Connect the Blue (P1) and Yellow (P2)
leads from the UC1 whip to P1 and P2 of the COP2 terminal strip.
4. Connect the (2) gray leads of the activation isolation relay to C1 and C2 of the COP2 terminal strip.
Unconnected or insecure ground connections will cause improper system operation. Verify that all grounding locations are securely and
properly grounded to earth.
LEGEND
= LOW VOLTAGE
= 115 VAC
J2
J1
XL
XN
NO
UC1 CONTROL
FIGURE 8052083 6-11-14
After the installation is completed, including all wiring connections perform the following interlock test: Allow for a call for heat. Verify that
the exhaust fan is operating prior to the blue LED on the UC1 circuit board being illuminated. Once the blue LED is lit pull the insulated
connector from terminal P1 of the UC1 circuit board off and verify that 10 seconds later that burner operation is disrupted. If not correct
any wiring errors and repeat interlock test. Call 800-255-4208 for assistance.
TJERNLUND PRODUCTS, INC.
1601 Ninth Street • White Bear Lake, MN 55110-6794
PHONE (800) 255-4208 • (651) 426-2993 • FAX (651) 426-9547
Visit our web site • www.tjernlund.com
CIC1 OPERATION & WIRING CONNECTIONS

UC1 TO COP2 WIRING

GREEN
YELLOW
5 3 6
4 2 1
LED'S
CALL
JUMPER
BLUE
COM
INTERLOCK
RELAY
NO
COM
MOTOR
RELAY
Copyright © 2014, Tjernlund Products, Inc. All rights reserved.
OUT = ON, IN = OFF
BLACK
UC1 CABLE
WHITE

SAFETY INTERLOCK TEST

OPTION 1
TOP VIEW
OFF
ON
8 7 6 5 4 3 2 1
DIP SWITCHES
Z B A
FRONT VIEW
BLACK
WHITE
OPTION 2 OPTION 3
Z B A Z B A
OPTION 4
Z B A
TB6
4 6 7 8
GRAY
GRAY
BLACK
WHITE
C1 GRY
C2 GRY
GRN GRN
P1
P2
1-10 VIO
COM YEL
V+ RED
COP2 BOX
P/N 8504209