JOHNSON CONTROLS
115
SECTION 6 – OPERATION
FORM 155.32-ICOM1.EN.GB
ISSUE DATE: 10/13/2017
6
LD20038a
Setting
Base
Temp.
+
Remote
Setting
Diff.
Setting
Base
Temp.
4 mADC
Setpoint [°C]
Remote Setpoint Setting Signal
(4~20 mADC)
20 mADC
Calculation of Set Point by remote 4~20 mADC
Signal (in cooling)
LD21977
Setting
Base
Temp.
4 mADC
Setpoint [°C]
Remote Setpoint Setting Signal
(4~20 mADC)
20 mADC
Calculation of Set Point by remote 4~20 mADC
Signal (in heating)
Setting
Base -
Temp.
Remote
Setting
Diff.
If a failure occurs, you automatically see the failure
and alarm screen.
For detailed information on how to change an entry
in one of these fields, see Change Numeric Values on
page 92 .
VALVE OPERATION
Control Valve Mode: Auto / Manual indicates wheth-
er the control valve is being operated automatically or
manually. To change to manual operation mode, press
and hold the Manual button for 3 seconds.
The Valve Position Setting may be
changed ONLY when the Control Valve
Mode Manual button is pushed.
Valve Position Setting: shows the Capacity Control
Valve Position Setting, expressed as a percentage. In
case of the link-less burner, this valve position is for
the fuel damper motor. The air damper position is cal-
culated based on the fuel and air position table.
For detailed information on how to change the valve
position setting, see Change Numeric Values on page
92 .
To move to the Menu screen, set the Con-
trol Valve Mode to Auto.
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