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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

Heat-Off-Cool-Auto

On-Auto-Circ

System and Fan selection vary

 

manual

 

 

based on system type

 

selectable

 

 

 

 

 

 

 

 

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.

INSTALLATION

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.

NO

 

YES

 

NO

NO

5 FEET

[1.5 METERS]

M19925

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.

® U.S. Registered Trademark • US Pat. #6,595,430 and Other Patents Pending

69-1787-1

Copyright © 2005 American Standard Inc. • All Rights Reserved •

 

TCONT800AS11AA TOUCH SCREEN PROGRAMMABLE COMFORT CONTROL

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)

M19916

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.

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 PUMP

HEAT/COOL

 

 

RC

RC

 

 

R

R

 

 

W1

O

 

 

Y

Y

S1

S1

G

G

S2

S2

B

B

 

SCREW TERMINALS

M22655

Fig. 3. Selecting terminal identifications for system type.

Table 2. Selecting Terminal Identifications for System Type.

 

 

 

 

Wallplate

Wiring

System Type

Terminal

Diagram

Identifications

Reference

 

 

 

Standard Heat/Cool

Heat/Cool

Fig. 5,

 

 

Fig. 6

 

 

 

Heat Pump with No

Heat Pump

Fig.7

Auxiliary Heat

 

 

 

 

 

NOTE: The factory default setting is configured for a 1 heat/1cool system with a gas furnace.

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.

Fig. 4. Inserting wires in terminal block.

IMPORTANT

Use 18 gauge comfort control wire.

Pub. No. 18-HD25D18-1

 

69-1787-1

2

Trane TCONT800AS11AA User Manual

TCONT800AS11AA TOUCH SCREEN PROGRAMMABLE COMFORT CONTROL

 

HEAT/COOL

1

RC

 

R

 

W1

 

Y

S1

G

S2

B

T

 

2

 

 

HEAT/COOL

 

RC

 

R

 

W1

 

Y

S1

G

S2

B

 

T

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AIR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OIL

 

R

 

 

Y

 

G

 

W1

 

W2

 

W3

 

B/C

 

 

R

 

Y

 

G

T

 

T

W

B/C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HANDLER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OIL BURNER PRIMARY

 

 

 

INDOOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INDOOR

 

 

 

 

 

 

 

 

 

OUTDOOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTDOOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ODT

 

 

 

 

 

 

 

COOLING UNIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COOLING UNIT

 

 

 

 

Y

 

 

 

 

B

 

O.D. SECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(SINGLE STAGE)

 

 

 

Y

 

 

 

 

B

 

 

O.D. SECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(SINGLE STAGE)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TO POWER SUPPLY

 

(3 PH

 

 

 

 

 

 

TO POWER SUPPLY

 

(3 PH

 

 

 

 

 

 

 

 

 

ONLY)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PER LOCAL CODES

 

 

 

 

 

 

 

 

ONLY)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PER LOCAL CODES

 

 

 

 

 

1 FACTORY INSTALLED JUMPER.

 

 

 

 

 

1 OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE

ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE

FROM THE THERMOSTAT CABLE.

 

 

 

ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE

 

 

M22657

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FROM THE THERMOSTAT CABLE.

M22656

 

Fig. 5. Typical hookup of single-stage heat and cool system with single transformer

(1H/1C).

Fig. 6. Typical hookup of single-stage heat and cool system with two transformers

(1H/1C).

HEAT PUMP

1

RC

 

 

R

 

 

O

 

 

Y

 

S1

G

 

S2

B

 

T

 

 

2

 

 

 

I-PF

PM-A

 

 

 

 

SUPPL. HTR.

 

 

 

 

R

Y

O

G W1 W2

CONTROL BOX

 

B/C

T

AIR

W3

 

HANDLER

 

 

 

 

 

 

 

 

 

 

 

 

 

REQ.

 

 

 

 

 

 

ODT-1

 

FOR

 

 

 

 

 

 

TO POWER 3 PH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SUPPLY PER

 

 

 

 

 

 

 

ODT-2

LOCAL

 

 

 

 

 

 

 

 

CODES AND

 

 

 

 

 

 

 

 

AS DEFINED

 

 

 

 

 

 

 

 

IN FIELD

 

 

 

 

 

 

 

INDOOR

WIRING TABLE

 

 

 

 

 

 

OUTDOOR

 

 

 

 

 

 

 

 

 

 

 

 

 

HEAT PUMP

R

Y

O

BR/X2

BR(T)

F

B

 

O.D. SECTION

 

 

 

OR BK

 

 

 

 

(SINGLE STAGE)

 

 

 

 

TO POWER SUPPLY

(3 PH

 

 

 

 

 

PER LOCAL CODES

ONLY)

 

 

 

 

 

 

 

 

1FACTORY INSTALLED JUMPER.

OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE

2ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE

FROM THE THERMOSTAT CABLE.

M22658

 

Fig. 7. Typical hookup of single-stage heat pump with no auxiliary/backup heat (1H/1C heat pump).

 

Pub. No. 18-HD25D18-1

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69-1787-1

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.

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.

WALL

REMOVE DURING

INSTALLATION

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

REMOVE DURING

INSTALLATION

 

REMOVE DURING INSTALLATION

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.

Pub. No. 18-HD25D18-1

 

69-1787-1

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