542933-UIM-D-0513
20 Johnson Controls Unitary Products
SECTION VI: ENTERING SERVICE MODE
SERVICE MODE ON MASTER CONTROL
Once in the service mode, the thermostat background will be gray (as pictured below) and the con-
trol can access system settings/information. The master has access to all areas of the communicat-
ing system.
NAVIGATING SERVICE MODE: MASTER CONTROL
Equipment details:
The equipment details screen displays fixed information which may include: System ID, Model num-
ber, Serial number and other details that pertain to the selected communicating equipment.
Equipment status:
The equipment status screen displays more dynamic information which may include: equipment
state, timers, temperatures, fault codes, and other statuses that pertain to the selected communicat-
ing equipment.
Equipment inputs/outputs:
The master control is a Touch Screen Communi-
cating Control that has been configured to
assume full control of a communicating system.
To enter the service portion of the control press
and hold (for 5 seconds) on the brand symbol
located in the upper right hand side of a given
screen (see picture).
From the system map (as shown) the controller
provides access to view all communicating com-
ponents and settings. Press the icon that relates
to the part of the system that you would like to
access and the controller will view each commu-
nicating component’s: Equipment Details, Equip-
ment Status, and Inputs/Outputs. Below is a
description of each of these screens.
The inputs/outputs screen displays system com-
mands which may include: thermostat input sig-
nals, control output signals and other input/
outputs that pertain to the selected communicat-
ing equipment.
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