Tjernlund SS2 SideShot with UC1 Universal Control (Version X.04) 8504105 Rev B 05/03 - Manual (Page 5)

SS2 WITH INTEGRAL UC1 UNIVERSAL CONTROL BOARD FEATURES
# 1. Power supplied by board. Do not supply power to this area or control damage may result.
# 2. Do not supply power to the appliance interlock block with the call selector in the “DRY” position.
Control damage may result if power is supplied.
# 3. Circuit protection must be provided by the installer. 16 Amps is the maximum current allowed for this device at terminal L.
V
A 15 Amp circuit breaker is recommended.
V
ETI
LED STATUS & FAULT INDICATORS
LED INDICATOR LIGHTS
LED #1 (Amber) Appliance call for heat.
LED #2 (Green) Safety circuit through P1 & P2 (SS2 Limit & Fan Prover) is verified “Open” upon start-up. Indicates Venter
prover is closed during run cycle. Burner circuit is energized with contact closure from terminal 3 to 4.
LED #3 (Green) Power switched to SS2 motor & Cooling Fan from L to MTR & M.
LED #4 (Red) Status / Fault indicator.
LED #5 (Red) 115 VAC power supplied to board. Also used as a status indicator.
LED STATUS INDICATORS
LED #4 & #5 (Red) Flashing Alternately = Venter in Pre-purge. (Pre-Purge options 0, 5, 20, 35 seconds)
LED #4 & #5 (Red) Flashing in Unison = Venter in Post-Purge. (Post-Purge options 0, 30 seconds or 1, 2, 4, 8, 16 minutes)
LED #4 Flashing Continuously* = Fan Prover opened for more than 10 seconds during burner cycle.
(Venter will run for 10 minutes, attempting to make Fan Prover)
LED FAULT INDICATORS
Fault conditions are indicated by counting the number of times LED #4 (Red) flashes.
4
LED 1 (AMBER)
LED 2 (GREEN)
LED 3 (GREEN)
LED 4 (RED)
LED 5 (RED)
DRY
24 V
115 V
APPLIANCE
INTERLOCK
RELAY
VENTER
MOTOR
RELAY
A B 1 2 3 4 L N
J1 J2 XL XN
P1 P2 C GND F
(1 9)
N M MTR
C, GND, F AUXILIARY DEVICE
COMMUNICATION TERMINALS
2 mA @ 5VDC. For Tjernlund MAC1E or
MAC4E auxiliary devices. SEE WARNING # 1. P1 - P2 SAFETY CIRCUIT
TERMINALS
1 mA @ 5VDC.
SEE WARNING # 1.
DIP SWITCH SETTINGS
Pre-Purge (1-2)
Post-Purge (3-8)
Prover status check (9)
See “Pre / Post Purge &
Prover Status Check Dip
Switch Settings”.
LED STATUS LIGHTS
See “LED Status & Fault
Indicator Section” for details.
APPLIANCE CALL
VOLTAGE SELECTION
Place RED voltage jumper in
proper location based on
appliance call interlock volt-
age. SEE WARNING # 2.
IMPORTANT
J1- J2 CALL
JUMPER
Used when the call signal is
used as the “proven” return
signal to the appliance. See
wiring section for details.
APPLIANCE INTERLOCK
TERMINAL BLOCK (A-B, 1-4)
A - B - Dry Contact call. 3 mA @ 5VDC.
SEE WARNING # 1.
1 - 24 or 115 VAC intercepted call.
IMPORTANT: RED voltage jumper must
match intercepted call voltage.
2 - 24V common or 115V Neutral.
3 - Common terminal to appliance relay con-
tacts. IMPORTANT: J1-J2 jumper routes
call voltage at terminal 1 to 3. Remove
J1-J2 jumper if a different voltage source is
provided to terminal 3.
4 - Normally open terminal of appliance relay.
Will be energized from terminal 3 if safety
circuit is “proven”.
L / N - 115 VAC POWER
SUPPLY BLOCK
115 VAC / 50-60 Hz
Circuit protection provided by installer.
SEE WARNING # 3.
MTR & M LOAD TERMINALS
FROM VENTER MOTOR RELAY
Used to drive SS2 Motor & Cooling fan.
1 HP MAX LOAD across terminals MTR & M / N.
XL / XN AUXILIARY DEVICE
POWER TERMINALS
115 VAC - Maximum of 0.15 Amps.
Only connect to Tjernlund auxiliary devices.
SEE WARNING # 1.
APPLIANCE INTERLOCK
RELAY
1 HP MAX LOAD across
terminals 3 & 4.
VENTER MOTOR RELAY
1 HP MAX LOAD from
terminals L to MTR & M.