Trane TCONT800AS11AA User Manual
TCONT800AS11AA Touch Screen
Programmable Comfort Control
18-HD25D18-1
INSTALLATION INSTRUCTIONS
APPLICATION
The TCONT800AS11AA Programmable Comfort Control provides electronic control of 24 Vac heating and cooling
systems. See Table 1 for a general description.
Table 1. TCONT800AS11AA Comfort Control Description.
Power Method Changeover System Selection Fan Selection Comments
24 Vac common wire Automatic or
RECYCLE NOTICE
If this control is replacing a control that contains
mercury in a sealed tube, do not place your old
control in the trash. Dispose of properly.
Contact your local waste management authority
for instructions regarding recycling and the
proper disposal of the old control.
manual
selectable
INSTALLATION
Heat-Off-Cool-Auto On-Auto-Circ System and Fan selection vary
NO
based on system type
YES
NO
5 FEET
[1.5 METERS]
NO
When Installing this Product...
1. Read these instructions carefully. Failure to follow
the instructions can damage the product or cause
a hazardous condition.
2. Installer must be a trained, experienced service
technician.
3. After completing installation, use these instructions
to check out the product operation.
Selecting Location
Install the comfort control about 5 ft. (1.5m) above the
floor in an area with good air circulation at average
temperature. See Fig. 1.
® U.S. Registered Trademark • US Pat. #6,595,430 and Other Patents Pending
Copyright © 2005 American Standard Inc. • All Rights Reserved •
Fig. 1. Selecting comfort control location.
Do not install the comfort control where it can be
affected by:
— Drafts or dead spots behind doors and in corners.
— Hot or cold air from ducts.
— Radiant heat from sun or appliances.
— Concealed pipes and chimneys.
— Unheated (uncooled) areas such as an outside wall
behind the comfort control.
M19925
69-1787-1
TCONT800AS11AA TOUCH SCREEN PROGRAMMABLE COMFORT CONTROL
/COOL
SC
S
P
S1
S2
C
G
Installing Wallplate
CAUTION
Electrical Hazard.
Can cause electrical shock or equipment
damage.
Disconnect power before wiring.
The comfort control can be mounted horizontally on the
wall or on a 4 in. x 2 in. (101.6 mm x 50.8 mm) wiring
box.
1. Position and level the wallplate (for appearance
only).
2. Use a pencil to mark the mounting holes.
WALL
WIRES THROUGH WALL
AND WIRE SLOT
WALL ANCHORS (2)
MOUNTING
HOLES
MOUNTING
SCREWS (2)
Fig. 2. Mounting wallplate.
3. Remove the wallplate from the wall and, if drywall,
drill two 3/16-in. holes in the wall, as marked. For
firmer material such as plaster, drill two 7/32-in.
holes. Gently tap anchors (provided) into the drilled
holes until flush with the wall.
4. Position the wallplate over the holes, pulling wires
through the wiring opening. See Fig. 2.
5. Insert the mounting screws into the holes and
tighten.
M19916
3. Securely tighten each screw.
4. Push excess wire back into the hole.
5. Plug the hole with nonflammable insulation to
prevent drafts from affecting the comfort control.
HEAT PUM
HEAT
R
W1
S1
S2
REW TERMINAL
Fig. 3. Selecting terminal identifications for
Table 2. Selecting Terminal Identifications for
System Type
system type.
System Type.
Wallplate
Terminal
Identifications
Standard Heat/Cool Heat/Cool Fig. 5,
Heat Pump with No
Auxiliary Heat
NOTE: The factory default setting is configured for a
1 heat/1cool system with a gas furnace.
Heat Pump Fig.7
RC
R
Y
O
Y
G
B
M22655
Wiring
Diagram
Reference
Fig. 6
M19917
WIRING (FIG. 5-7)
All wiring must comply with local electrical codes and
ordinances.
1. Select set of terminal identifications (Table 2) that
corresponds with system type (conventional or
heat pump) in Fig. 3.
2. Loosen the screws for the appropriate system type
selected; see Table 2. Insert wires in the terminal
block under the loosened screw. See Fig. 4.
Pub. No. 18-HD25D18-1
69-1787-1 2
Fig. 4. Inserting wires in terminal block.
IMPORTANT
Use 18 gauge comfort control wire.
TCONT800AS11AA TOUCH SCREEN PROGRAMMABLE COMFORT CONTROL
HEAT/COOL
RC
1
S1
S2
T
2
GYR
W2
W1
INDOOR
OUTDOOR
ODT
Y
TO POWER SUPPLY
PER LOCAL CODES
FACTORY INSTALLED JUMPER.
1
2
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE
ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
Fig. 5. Typical hookup of single-stage heat and cool
system with single transformer
R
W1
Y
G
B
AIR
W3
B/C
HANDLER
COOLING UNIT
O.D. SECTION
B
(SINGLE STAGE)
(3 PH
ONLY)
M22656
(1H/1C).
HEAT PUMP
1
S1
S2
T
2
O
GYR
W1
INDOOR
OUTDOOR
O
Y
R
FACTORY INSTALLED JUMPER.
1
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE
2
ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
ODT-1
ODT-2
BR/X2
OR BK
I-PF
W2
W3
BR(T)
HEAT/COOL
RC
R
W1
W
T
(3 PH
ONLY)
(1H/1C).
B/C
B
Y
G
B
OIL
FURNACE
COOLING UNIT
O.D. SECTION
(SINGLE STAGE)
S1
S2
T
1
GYR
T
OIL BURNER PRIMARY
INDOOR
OUTDOOR
Y
TO POWER SUPPLY
PER LOCAL CODES
OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE
1
ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE
FROM THE THERMOSTAT CABLE.
Fig. 6. Typical hookup of single-stage heat and cool
RC
R
O
Y
G
B
PM-A
SUPPL. HTR.
CONTROL BOX
TO POWER
SUPPLY PER
LOCAL
CODES AND
AS DEFINED
IN FIELD
WIRING TABLE
TO POWER SUPPLY
PER LOCAL CODES
system with two transformers
AIR
B/C
T
B
(3 PH
ONLY)
HANDLER
HEAT PUMP
O.D. SECTION
(SINGLE STAGE)
M22658
REQ.
FOR
3 PH
F
M22657
Fig. 7. Typical hookup of single-stage heat pump with no auxiliary/backup heat (1H/1C heat pump).
3 69-1787-1
Pu b. No . 18 -HD 25D 18- 1
TCONT800AS11AA TOUCH SCREEN PROGRAMMABLE COMFORT CONTROL
Powering the Comfort Control
The comfort control can be powered with 24 Vac.
24 Vac Common Power (Recommended)
Wire the common side of the transformer to the B screw
of the comfort control wallplate. When installing in a
single transformer system, keep the jumper wire between
the R and Rc screws. When installing in a twotransformer system, use the common from the cooling
transformer to connect to the B screw and remove the
jumper wire between the R and Rc screws.
Battery Power (Optional)
CAUTION
Equipment or Property Damage Hazard.
Using battery power only may not provide
adequate power to comfort control and can
cause damage during freezing conditions.
Connect the 24 Vac Common (B) wire from the
system transformer to the comfort control for
proper operation when the battery power is
drained.
Three AAA alkaline batteries can be used to power the
comfort control for armchair programming only. To
prevent the comfort control and heating/cooling system
from shutting down due to lack of battery power, it is not
recommended that the comfort control be solely powered
with the three AAA batteries during normal system
operation. When using batteries, make sure positive and
negative terminals are oriented correctly, as marked on
the device. See Fig. 8.
WALL
INSTALLATION
REMOVE DURING
M22643
Fig. 9. Mounting comfort control on wallplate.
Adjusting Real-Time Clock
Setting Calendar and Time
Locate and remove the tab labeled Remove in the lower
left corner on the comfort control back. The tab must be
removed to activate the real-time clock. See Fig. 10.
REMOVE TAB TO ACTIVATE REAL TIME CLOCK
BATTERIES (3)
M19918
Fig. 8. Installing batteries on comfort control back.
Mounting the Comfort Control
1. Align the terminal screw blocks with the pins on the
back of the comfort control.
2. Push the comfort control straight onto the wallplate. See Fig. 9.
Pub. No. 18-HD25D18-1
69-1787-1 4
INSTALLATION
REMOVE DURING
INSTALLATION
REMOVE DURING
M22644
Fig. 10. Removing tab to activate real-time clock.
This comfort control is designed to automatically keep
current time and day in memory for up to ten years under
normal use after calendar is set. When comfort control is
first powered, display is ready to enter calendar date.
See Fig. 11.
Loading...