tekmar 481 User Switch Installation - Manual (Page 7)

7 of 12 © 2009 D 481 - 07/09
User
Button
1
User
Button
2
User
Button
3
STEP 8
Replace the trim bezel.
Output Relay Contacts and DIP Switches
The functionality of the 3 dry relay contacts
on the User Switch 481 are determined by
the settings of DIP switches 1, 2 and 3. Dip
switches 1 and 2 select the mode of operation
for relay outputs.
Permanent or Momentary Contact Closure
DIP switch 3 = OFF (Permanent)
DIP switch 3 = ON (Momentary)
The output relay contacts can close momentarily for 5 seconds and then re-open or
the relay contacts can close permanently. Use DIP switch 3 to select either Momentary
or Permanent. Momentary closure is often used in alarm systems. Permanent is
the factory default setting.
Alert and Scene Status
DIP switch 1 = OFF
DIP switch 2 = OFF
DIP switch 3 = Permanent or Momentary
Relay contact 1 closes to provide an alert when there is an error message present
on the tN4 system.
Relay contact 2 closes while the scene is set to Away (Scene 2).
Relay contact 3 closes while the scene is set to Scene 3.
Application Examples:
The relay contacts can connect to a third party alarm system or automation system
to provide the status of the tN4 system.
Relay contact 2 can connect to a non-tN4 snow melt control (664, 665, 667) to
provide an Idle Demand. The snow melt control Idle temperature is set to OFF.
While the tN4 system is in Away (scene 2), the snow melt control is prevented
from entering the melting operation.
ON OFF
tN4
Power: 24 V ± 10% 50/60 Hz 4 VA
Relays: 30 V (ac) 1A
tN4 User Switch 481
Three Outputs
Canada
1014-01
For product
Use at least 194°F
(90°C) conductors
instructions
see brochure
Meets Class B: • Canadian ICES • FCC Part 15
C R tN4
Pwr 1 2 3
Rly Relays
1
ON OFF
12
3
1
ON OFF
12
3
DIP Switches
ON OFF