Kera SELENA - Page 50

SELENA Multifunctional LED Clock USER MANUAL V32D
KERA TECHNOLOGIES INC. 2013 www.ledclocks.com
50
Terminal block
on the back panel
COOL - HEAT
Ctrl. Contacts PROBE
TO THE HEATING SYSTEM
CONTROL INPUTS
TO THE AIR CONDITIONING SYSTEM
CONTROL INPUTS
External Temperature
PROBE
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
Ctrl. Contacts PROBE
TO THE HEATING SYSTEM
OR
TO THE AIR CONDITIONING SYSTEM
CONTROL INPUTS
External Temperature
PROBE
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
Control Contacts
TO THE
HEATING SYSTEM
CONTROL INPUTS
TO THE
AIR CONDITIONING
SYSTEM
CONTROL INPUTS
10 Amp. , 250V max.
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
External Temperature
PROBE
Use any type
2-conductor cable to
extend the probe wiring
up to 500 ft ( 150m )
Internal Temperature
PROBE
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 !