Varifan ECS 5M, User Manual

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Page 11
2.3.2 - Software Settings Switch
This switch is located at the rear of the ECS faceplate and
adjusts the following options.
1
2
3
4
Switch
1 Selects between a Fahrenheit or Celsius
display on the front panel.
Switch 2 Locks/unlocks user settings. All settings except
for main set point, record low, and record high
are locked while this switch is off.
Switch 3 Selects between a Heater or Fan control on
Stage Five of the ECS.
Switch 4 To connect a humidity probe, DIP switch #4
must be at ON.
2.4 CONNECTION PROCEDURE
For the connection procedures which follow refer to
Figures 1 through 3.
2.4.1 - Input power
Use a screwdriver to remove cable knock-outs for the
installation of cabling to the ECS.
2.4.1.1 - 115 VAC
Make certain that the line voltage selector switch is set
to 115 VAC
. Connect the power cable to terminals 11 and
12 on the main (bottom) board, connect the ground wire to
the terminal 13 on the main board .
OFF ON
Fahrenheit
Settings locked
Stage 5 = Heat
Not used Celsius
Setting unlocked
Stage 5 = Fan
Relative Humidity
Do not apply power to the ECS and all loads until all
connections have been completed!
CHAPTER 2 - INSTALLATION
OFF ON