SELENA
Multifunctional LED Clock
USER MANUAL V32D
KERA TECHNOLOGIES INC. 2013
www.ledclocks.com
50
Terminal block
on the back panel
C
O
O
L
-
H
E
A
T
C
tr
l.
C
o
n
ta
ct
s
P
R
O
B
E
TO THE HEATING SYSTEM
CONTROL INPUTS
TO THE AIR CONDITIONING SYSTEM
CONTROL INPUTS
E
xt
er
na
l T
em
pe
ra
tu
re
P
R
O
B
E
NORMALLY OPEN
NORMALLY OPEN
Use any type
2-conductor cable to
extend the probe wiring
up to 500 ft ( 150m )
10 Amp. , 250V max.
Wiring for Heating and Air-Conditioning system with two Internal Relays when only SPST Contacts are used
and with one external probe.
NOTE: Either Normally Open or Normally Closed contacts, or a mix of thereof may be ordered.
Terminal block
on the back panel
C
tr
l.
C
o
n
ta
ct
s
P
R
O
B
E
TO THE HEATING SYSTEM
OR
TO THE AIR CONDITIONING SYSTEM
CONTROL INPUTS
E
xt
er
na
l T
em
pe
ra
tu
re
P
R
O
B
E
NORMALLY OPEN
NORMALLY CLOSED
Use any type
2-conductor cable to
extend the probe wiring
up to 500 ft ( 150m )
Wiring for ONLY Heating ( or ONLY Air-Conditioning ) system with one Internal SPDT Relay
and with one external probe.
COMMON
First Terminal block
on the back panel
C
o
n
tr
o
l
C
o
n
ta
c
ts
TO THE
HEATING SYSTEM
CONTROL INPUTS
TO THE
AIR CONDITIONING
SYSTEM
CONTROL INPUTS
10
A
m
p.
,
25
0V
m
ax
.
Wiring for Heating and Air-Conditioning system with two Internal Relays when both SPDT Contacts may be used
and with two external probes.
Second Terminal block
on the back panel
E
xt
er
na
l T
em
pe
ra
tu
re
P
R
O
B
E
Use any type
2-conductor cable to
extend the probe wiring
up to 500 ft ( 150m )
In
te
rn
al
T
em
pe
ra
tu
re
P
R
O
B
E
Use any type
2-conductor cable to
extend the probe wiring
up to 500 ft ( 150m )
NORMALLY OPEN
NORMALLY CLOSED
COMMON
NORMALLY OPEN
NORMALLY CLOSED
COMMON
CAUTION !
The relays contacts are not fused.
Provide appropriate fuse protection in
the external wiring !
10 Amp. , 250V max.
CAUTION !
The relays contacts are not fused.
Provide appropriate fuse protection in
the external wiring !
CAUTION !
The relays contacts are not fused.
Provide appropriate fuse protection in
the external wiring !
