Installation Instructions
Issue Date December 9, 2003
© 2003 Johnson Controls, Inc.
1
T600HCN-1 Non-Programmable Thermostat
Applications
The T600HCN-1 is a single-stage non-programmable
thermostat that provides exceptional accuracy through
the use of a unique Proportional-Integral (PI) time
proportioning algorithm. The thermostat’s proprietary
adaptive logic algorithm provides a constant space
temperature by controlling the Heating, Ventilating,
and Air Conditioning (HVAC) equipment to minimize
overshoot and maximize comfort. The algorithm
virtually eliminates temperature offset associated with
traditional, differential-based on/off thermostats.
Additionally, the menu-driven backlit display, plain text
menus, and five keys on the T600HCN-1 make
operating the thermostat easy and intuitive.
Installation
Location Considerations
Locate the T600HCN-1 thermostat as follows:
•
on a partitioning interior wall, and approximately
5 ft (1.5 m) above the floor in a location of average
temperature
•
away from direct sunlight, radiant heat, outside
walls, behind doors, air discharge grills, stairwells,
or outside doors
•
away from steam or water pipes, warm air stacks,
unheated/uncooled areas, or sources of electrical
interference
To install the thermostat:
1. Remove the security screw on the bottom of the
thermostat cover using a Phillips-head
screwdriver. Open the thermostat by pulling on the
bottom side of the thermostat cover (see Figure 1).
2. Unlock the Printed Circuit Board (PCB) by
carefully pressing the locking tabs to the right
(see Figure 2). Open the thermostat’s PCB to the
left.
3. Pull out approximately 6 in. (152 mm) of wires
from the wall and insert the cable through the hole
in the base.
4. Align the base on the wall, and using the base as
a template, mark the location of the two mounting
holes on the wall. Confirm the thermostat base is
installed with the proper side up.
5. Use the supplied anchors and screws for mounting
on drywall or plaster. Drill two 3/16 in. (4.7 mm)
holes at the marked locations and tap nylon
anchors flush to wall surface (see Figure 3).
6. Position base on the wall, insert screws through
mounting base, and fasten into wall anchors. Do
not overtighten screws.
7. Swing the thermostat PCB back to the right to
close. Gently press on the PCB to secure each of
the locking tabs.
8. Pull out the screw terminal blocks using the pull
tabs on each connector (see Figure 4).
Note:
The number of terminals on the terminal
blocks varies depending on the T600 model.
IMPORTANT:
Use this T600HCN-1
non-programmable thermostat only as an operating
control. Where failure or malfunction of the
T600HCN-1 could lead to personal injury or property
damage to the controlled equipment or other
property, additional precautions must be designed
into the system. Incorporate and maintain other
devices such as supervisory or alarm systems or
safety or limit controls intended to warn of, or protect
against, failure or malfunction of the T600HCN-1.
Part No. 24-9889-10, Rev. A
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