Tjernlund SS1 SideShot with UC1 Universal Control (Version X.04) 8504102 Rev C 02/04 User Manual
Page 13
ELECTRICAL WIRING
All wiring from the SS1 to the appliance must be appropriate Class 1 wiring as follows: installed in rigid metal conduit, intermediate
metal conduit, rigid non-metallic conduit, electrical metallic tubing, Type MI Cable, Type MC Cable, or be otherwise suitably protected
from physical damage.
SS1 SEQUENCE OF OPERATION WITH INTEGRAL UC1 UNIVERSAL CONTROL AND 24 VAC
OR 115 VAC HEATER CONTROL CIRCUIT:
Control signal from thermostat, aquastat or primary control is intercepted and routed to terminal “1” on UC1 terminal strip. When
terminal “1” is energized with either 24 VAC or 115 VAC, the Venter motor is energized. After draft is established, the Fan Proving
Switch closes within 5 to 10 seconds energizing terminal “4”, which completes the circuit allowing burner to fire. NOTE: If a
Venter pre-purge is selected, the burner will not fire until the pre-purge time is finished. The Venter will continue to run after the
burner has finished firing for the set post-purge time cycle. The UC1 is set for a 2 minute post-purge time period from the factory.
See “Pre / Post-Purge Settings” on page 5 for details.
The "1" input terminal on the SideShot can accept either a 24 VAC or 115 VAC control signal. IMPORTANT: The RED volt-
age jumper must be positioned based on appliance interlock voltage 24V or 115V. If using the “DRY” contact activation method,
use terminals A & B on UC1 control and position the RED voltage jumper tab in the “DRY” position. IMPORTANT:
Only one interlock method (i.e. 24V, 115V or “Dry”) can be used with the UC1. Multiple appliance interlocks require the use of
our MAC-Series multiple appliance controls.
The steps listed under each diagram are intended as a supplement to the diagram. Wiring colors or designations may vary by
manufacturer. If you are unable to wire the SS1 as outlined in these instructions, call Tjernlund’s Customer Service Department
toll free at 1-800-255-4208 for assistance.
IMPORTANT: If the call for heat interlock signal or 115 VAC power is removed, the UC1 board will reset and any fault, if present,
will be stored in memory instead of displayed. See page 5, “Checking Memory for Last Fault Code”.
SS1 WITH INTEGRAL UC1 UNIVERSAL CONTROL
(THE SS1 MOTOR, LIMIT & PROVER ARE ALL FACTORY PREWIRED)
IMPORTANT: MORE THAN ONE INTERLOCK METHOD MAY BE APPLICABLE
In many cases it is easier to interlock with the thermostat/aquastat portion of the heater control circuit vs. the primary
control portion of the heater control circuit. Review all of the wiring diagram options prior to choosing the best method.
12
IMPORTANT:
RED JUMPER POSITION MUST BE THE SAME
AS APPLIANCE INTERLOCK VOLTAGE.
CALL
RELAY
INTERLOCK
COMMON
NEUTRAL
PRO
DUCT
S,
INC.
SS1 MOTOR
1 H.P. MAX @ 115 VAC
SUPPLY
115 VAC
50/60 Hz
R
T
JERNLUND 9183006
NO
MTR
M
MOTOR
RELAY
N
COM
NO
115 VAC
24 VAC
1303960-1
DO NOT SUPPLY VOLTAGE
TO "A" OR "B".
DO NOT SUPPLY POWER!
5 VDC BOARD-GENERATED POWER
HOT
24 VAC
USER-PROVIDED
CALL SWITCH
LINE
OR
"DRY"
OR
1
15V
J2
COM
24
V
DR
Y
LEGEND:
115 VAC
5
POST-PURGE SETTINGS
FOR TJERNLUND
TO P1, P2, C, GND
AUXILIARY
OR F. DOING SO
WILL DAMAGE THE
CONNECT POWER
OPEN PROVER OPTION
(9)
(3 - 8)
9
78
6
CONTROL.
DEVICES. DO NOT
F
GN
D
ON
LED1
PRE-PURGE SETTINGS
LED5 LED4
LED2
LED3
(1 - 2)
24
3
1
C
P1
P2
J1
XL
XN
115 OR 24 VAC FROM CALL JUMPER
OR USER-PROVIDED VOLTAGE
FROM TERMINAL 3 TO 4 WITH CALL
JUMPER REMOVED
K2
K1
APPROVED
MAC1E OR MAC4E
JUMPER
RED
RED
GREEN
GREEN
AM
BER
SS1 PROVER
SS1 LIMIT
WARNING: Disconnect power supply from the SS1 and heating equipment when making wiring connections and servicing the
SS1. Failure to do so may result in personal injury and/or equipment damage. LED #5 (RED) should be off with
power removed.