Tjernlund HSJ, 1, 2 Series with UC1 Universal Control (Version X.04) 8504106 Rev B 05/03 User Manual
Page 12
11
IMPORTANT:
RED JUMPER POSITION MUST BE THE SAME
AS APPLIANCE INTERLOCK VOLTAGE.
CALL
RELAY
INTERLOCK
COMMON
NEUTRAL
PRO
DUCT
S,
INC.
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
D/N 1303958-1
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
PROVER
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
WARNING: Disconnect power supply from the UC1 and heating equipment when making wiring connections and servicing the
Venter. Failure to do so may result in personal injury and/or equipment damage. LED #5 (RED) should be off with
power removed.
GREEN
BL
UE
YELL
O
W
WHITE
BL
ACK
GREEN
WHITE
BL
ACK
GROUNDING STUD
2 FT. WHIP FROM UC1
HSJ, 1, 2 ELECTRICAL BOX
FAN PRO
VER
INSERT PROVIDED
HOLE PLUG
/N 2201018J
UC1 UNIVERSAL CONTROL WIRING SCHEMATIC
The Ground lead, Venter motor and Fan Prover leads are factory connected to the UC1 circuit board. Venter Ground, motor and Fan
Prover wiring connections are made at the free end of the 2 foot whip in HS-Series junction box.
WIRING CONNECTIONS FROM UC1 UNIVERSAL CONTROL MADE IN
HS-SERIES JUNCTION BOX
1. Connect ground from UC1 whip to grounding stud in Venter.
2. Connect Black and White leads from UC1 whip to Venter motor leads.
3. Connect Blue and Yellow leads from UC1 whip to Fan Prover switch terminals
in Venter. Yellow lead should be on switch terminal closest to Venter junction box wall.
4. Insert provided hole plug in HS-Series junction box in opening
opposite UC1 whip.
MULTIPLE APPLIANCE INTERLOCKS
To interlock with one additional 24/115 VAC heater add the MAC1E. It is a stripped
down auxiliary board version of the UC1 and is powered by and communicates with
the UC1 through a factory wired whip.
To interlock more than two 24/115 VAC heaters, add the MAC4E for a total of up to
5 heaters. It is powered by and communicates with the UC1 through a factory wired
whip. Consult factory for installations with more than 5 heaters.
To interlock a millivolt water heater and a 24/115 VAC furnace or boiler, add the
WHKE and MAC1E.
MILLIVOLT INSTALLATIONS
Each millivolt appliance interlocked with the UC1 must have its own WHKE kit
installed. The WHKE Gas Pressure Switch actuates the Venter through the A - B Dry
contacts. The Linear Limit switch disables the heater in the event of a venting mal-
function. IMPORTANT: Each millivolt appliance interlocked with the UC1 must have
its own Linear Limit spill switch.
MULTIPLE MILLIVOLT HEATER INSTALLATIONS
Multiple millivolt heaters can be installed by using the A-B dry contact terminals of
the UC1, MAC1E or MAC4E. Wire each WHKE gas pressure switch in parallel
across A-B terminals of UC1, MAC1E or MAC4E. Wire Linear Limit safety switch
into each individual millivolt heater. For further information consult factory or WHKE
instructions.