Tjernlund UC1 Universal Control (Version X.06) 8504107 Rev D 07/05 User Manual
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UC1 UNIVERSAL CONTROL OPERATIONAL CHECK
1. Confirm power is supplied to the Control. LED #6 (RED) should be on.
2. Activate the UC1 by initiating an appliance call for heat. LED #1 (AMBER) should be on.
3. The motor relay will close and activate the Venter motor. LED #3 (GREEN) should be on.
4. If the safety circuit across P1 & P2 (Venter Prover) is closed, indicating an approved condition,
the appliance interlock relay will close making terminal #3 closed to terminal #4 & LED #2
(BLUE). Appliance burner should fire.
5. Remove power to the UC1 and any interlocked appliances. The LED #6 (RED) or any LED’s
should not be on. Test the safety circuit by removing the Blue or Yellow Lead from Fan Proving
Switch. Do not let the opened Lead touch a ground or damage may occur to the control when
power is Reestablished. Reestablish power to the UC1 and interlocked appliances and initiate
a call for heat. After 60 seconds a Prover Start Up fault should arise with LED #4 flashing 3 times.
6. Remove appliance call for heat and power to the UC1 and any interlocked appliances. The LED
#6 (RED) or any LED’s should not be on. Reconnect Blue or Yellow Fan Prover lead to Fan
Proving Switch terminal removed from in step 5.
7. Reestablish power to UC1 and interlocked appliances and initiate a call for heat to confirm proper operation of UC1 and
appliance.
RESETTING FAULT CODE CREATED BY STEP 5 OF OPERATIONAL CHECK
IMPORTANT: Prior to accessing the fault code memory, note the settings of the dip switches so that they can be returned to their
original Pre / Post-Purge positions. When power is supplied to the UC1 use caution when moving dip switches.
The last fault code can be retrieved at any time by setting all dip switches 1-8 to the up, or “on” position. The last fault code, or
lack there of, will be indicated by counting the number of times LED 4 flashes. By moving any of the dip switches back to their
original position, the fault code will be cleared. NOTE: The UC1 board must have its 115 VAC power supply present when any of
the (1-8) dip switches are moved back to their original position for the fault code to clear.
UC1 UNIVERSAL CONTROL CONNECTED WITH A HONEYWELL R8184 SERIES
OR EQUIVALENT PRIMARY CONTROL AND A BURNER MOTOR POST-PURGE
RED JUMPER POSITION MUST BE THE SAME
AS APPLIANCE INTERLOCK VOLTAGE.
U
N
IVER
SAL
C
O
N
T
R
O
L
XN
BURNER
NM
T
R
M
THERMOSTAT
OIL VALVE
W
O
WHITE
ORANGE
B
F
F
T
T
IMPORTANT:
XL
J1
J2
115V
DRY
24V
115 VAC
LEGEND:
CALL
JUMPER
BLACK
HONEYWELL R8184
SERIES OR EQUIVALENT
VENTER
MOTOR
MOTOR
IGNITION
TRANS
50/60 Hz
SUPPLY
115 VAC
SPADE TERMINAL IN ELECTRICAL BOX.
GROUND
CRIMP GROUND WIRE TO GROUNDING
IMPORTANT:
D/N 9183047-4 10/16/03
L1 OR B1
CONNECT TO
CONNECT TO
L2 OR B2
1. Separate the burner motor wire and ignition transformer from the Orange wire of R8184.
2. Connect the Orange of R8184 to #1 on UC1 terminal block.
3. Connect #2 on UC1 terminal block to White on R8184 and L2 or B2.
4. Connect the HOT wire of oil solenoid valve to #4 on UC1 terminal block and neutral wire to White or N.
5. Connect burner motor and ignition transformer HOT wires to M terminal on UC1 and neutrals to White or N.
6. Make sure RED voltage jumper on UC1 is on 115V.
7. Connect 115 VAC supply voltage to L & N terminals on UC1. Crimp Ground wire to grounding spade terminal in UC1.
Important: Installer must supply overload and disconnect protection.
8. If not previously completed, connect ground from UC1 whip to Venter ground. Connect Black and White leads from UC1 whip
to Venter motor leads. Connect Blue and Yellow leads from UC1 whip to Fan Prover switch. Prover Leads are not polarity sensitive.
1 9
LED 1 AMBER
LED 2 BLUE
LED 3 GREEN
LED 4 RED
LED 5 RED
LED 6 RED
POWER LED
ON