Honeywell T8611G User Manual

APPLICATION

T8611G Chronotherm® IV

Deluxe Programmable

Heat Pump Thermostats

INSTALLATION INSTRUCTIONS

The T8611G Chronotherm® IV Deluxe Programmable Heat Pump Thermostats provides electronic control of 24 Vac single-zone heat pump systems.

Table 1. Description of T8611 Thermostats.

T8611 Changeover System Selection Fan Selection Comments

G Automatic Em Heat-Heat-Off-Cool-Auto On-Auto System and fan selections are done by keyboard.

MERCURY 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. Check the ratings given in the instructions and on the product to make sure the product is suitable for your application.

3. Installer must be a trained, experienced service technician.

4. After completing installation, use these instructions to check out the product operation.

Location

Install the thermostat about 5 ft (1.5m) above the floor in an area with good air circulation at average temperature. See Fig. 1.

Refer to Table 1 for a general description of the thermostat. All T8611 thermostats require a common wire to supply power.

Do not install the thermostat 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 thermostat.

Wallplate Installation

The thermostat can be mounted horizontally on the wall or on a 2 in. x 4 in. (50.8 mm x 101.6 mm) wiring box. Position wallplate horizontally on the wall or on a 2 in. x 4 in. (50.8 mm x 101.6 mm) wiring box.

1. Position and level the wallplate (for appearance only). The thermostat will function correctly even when not level.

2. Use a pencil to mark the mounting holes. See Fig.

3. Remove the wallplate from the wall and drill two 3/16 inch (76 mm) holes in the wall (if drywall) as marked. For firmer material such as plaster, drill two 7/32 inch (5.56 mm) 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.

5. Loosely insert the mounting screws into the holes.

6. Tighten mounting screws.

69-1406-1

T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTATS

4. Plug the hole with nonflammable insulation to prevent drafts from affecting the thermostat.

THERMOSTAT

YES

5 FEET

[1.5 METERS]

Fig. 1. Typical location of thermostat.

WIRES THROUGH WALL

WALL ANCHORS (2)

WALL

O/B

Y1 G E

FAN RELAY

COOLING OR HEATING CHANGEOVER VALVE

COMPRESSOR CONTACTOR

M10106

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

Fig. 3. Typical hookup of T8611G

in a heat pump system.

FOR WRAPAROUND INSERTION STRIP 7/16 IN. (11 MM).

EM. HT. RELAY

HEAT RELAY 2

Fig. 4. Correct wiring technique.

RW1

EQUIPMENT

MONITOR 2

EQUIPMENT

MONITOR 1

HEAT RELAY 1

TRANSFORMER

FOR STRAIGHT INSERTION STRIP 5/16 IN. (8 MM).

X2 LX1

OT OT

OUTDOOR SENSOR

L1 (HOT)

M11311A

M4826

MOUNTING HOLES

MOUNTING SCREWS

M15044

Fig. 2. Mounting the wallplate.

WIRING

All wiring must comply with local electrical codes and ordinances. Refer to Fig. 3 for typical hookup. A letter code is located near each terminal for identification.

CAUTION

Electrical Hazard. Can cause electrical shock or equipment damage.

Disconnect power before wiring.

1. Loosen the terminal screws on the wallplate and connect the system wires. See Fig. 4.

IMPORTANT

Use 18 gauge, color-coded thermostat cable for proper wiring.

2. Securely tighten each terminal screw.

3. Push excess wire back into the hole.

69-1406—1 2

Mounting Thermostat

1. Engage tabs at the top of the thermostat and wallplate. See Fig. 5.

2. Press lower edge of case to close and latch.

NOTE: To remove the thermostat from the wall, first pull

out at the bottom of the thermostat; remove top last.

ENGAGE TABS AT TOP OF THERMOSTAT AND WALLPLATE.

PRESS LOWER EDGE OF CASE TO LATCH.

Fig. 5. Mounting thermostat on wallplate.

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T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTATS

Using Thermostat Keys (Fig. 6)

The thermostat keys are used to:

• set current day and time,

• program times and setpoints for heating and cooling,

• temporarily override program temperatures,

• display present setting,

• configure Installer Setup,

• check System-Test,

• display outdoor temperature (select models),

• set the system operation,

• set the fan operation.

NOTE: Always press the keys with your fingertip or sim-

ilar blunt tool. Sharp instruments like a pen or pencil point can damage the keyboard.

SETTINGS

System and Fan Settings

The system default setting is Heat and the fan default setting is Auto. Use the System and Fan keys to change the settings. See Fig. 7. The fan settings can be set for each program period individually. The system selection is for all the program periods.

INCREASE TIME SETTING OR SCROLL FORWARD THROUGH INSTALLER SETUP

ND SYSTEM TEST

SET CURRENT DAY AND TIME

RETURN TO NORMAL OPERATIONS

ENTER INDEFINITE OR TIMED HOLD MODE

SET CURRENT OR PROGRAM DAY

CHANGE BETWEEN DAYLIGHT SAVINGS AND STANDARD TIME

SET WAKE TIMES AND SETPOINTS

Set Current

Run

Day/Time

Program

Hold Temp

Day

Daylight

Time

COPY ONE PROGRAMMED DAY TO ANOTHER DAY

Fig. 6. T8611G key locations and descriptions.

SET LEAVE TIMES AND SETPOINTS

Time Set Program

Wake

Heat/Cool

Settings

Copy

System settings control the thermostat operation:

Em Heat: Emergency heat relay is on continuously.

Thermostat cycles highest stage of heat. Cooling system is off. Compressor is de-energized.

Heat: The thermostat controls the heating. Off: Both the heating and cooling are off. Cool: The thermostat controls the cooling. Auto: The thermostat automatically changes between

heating and cooling operation, depending on the indoor temperature.

Fan settings control the system fan:

On: Fan operates continuously. Auto: Fan operates with equipment.

LED Indication

Two LED indicators are located in the upper right of the thermostat. They indicate when a Check or Fail signal is sent to the thermostat from the system. See Fig. 8.

SET RETURN TIMES AND SETPOINTS

Leave

Return Sleep

System Fan

DECREASE TIME SETTING OR SCROLL BACKWARD THROUGH INSTALLER SETUP AND SYSTEM TEST

INCREASE TEMPERATURE SETTING OR SCROLL FORWARD THROUGH INSTALLER SETUP OPTIONS

DECREASE TEMPERATURE SETTING OR SCROLL BACKWARD THROUGH INSTALLER SETUP OPTIONS

DISPLAY INFORMATION SUCH AS PRESENT SETTINGS AND OUTDOOR TEMPERATURE

SET SLEEP TIMES AND SETPOINTS

SELECT FAN OPERATION

SELECT SYSTEM OPERATION

CHANGE BETWEEN HEATING AND COOLING SETPOINTS

M14624

Time Set Program

Run

Set Current

Program

Day/Time

Hold Temp

Day

Daylight

Time

Leave

Wake

Heat/Cool

Settings

Copy

Return

System Fan

Sleep

Fig. 7. Thermostat System and Fan key locations.

M14625

System

Fan

TWO LED INDICATORS

M10675

Fig. 8. LEDs location.

3 69-1406—1

T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTATS

Outdoor

Fan

eat

Off

Cool

Temperature Settings

Refer to Table 2 for the default program. If the daytime energy savings period is not used, press the period key (Leave or Return) until the time is blank. The fan setting feature is available on select thermostat models. See Owner’s Guide, form number 69-0940, for complete instructions on changing the program.

Table 2. Default Program Settings.

Period Time

Wake 6:45 AM 20°C

Leave 8:45 AM 4.5°C

Return 5:00 PM 20°C

Sleep 10:00 PM 4.5°C

Heat

Setpoint

(68°F)

(40°F)

(68°F)

(40°F)

Cool

Setpoint

25°C (77°F)

37°C (99°F)

25°C (77°F)

37°C (99°F)

Setting

Auto

Fan

INSTALLER SETUP

NOTE: For most applications, the thermostat factory-

settings will not need to be changed. Review the factory settings in Table 2 and if no changes are necessary, go to the Installer System Test section.

The Installer Setup is used to customize the thermostat to specific systems. Some of the options include temperature display, changeover and outdoor temperature display. Installer Setup numbers are listed in Table 3. The table includes all the configuration options and the factory-settings for the T8611.

A combination of key presses is required to use the Installer Setup feature: — To enter the installer setup, press and hold the

information i key with the increase ! and decrease " keys until the first number is displayed. All display segments appear for approximately three seconds before the number is displayed. See Fig. 9 and 10.

— To advance to the next Installer Setup, press the

Time ∆ key.

— To change a setting, use the increase ! or decrease

" key.

— To scroll the Installer Setup numbers backward, press

the Time ∇ key.

— To exit the Installer Setup, press Run Program.

Wait

Recovery Hold for

Filter

Em Ht

Tue Wed Thu Fri Sat Sun

Mon Wake Leave Return Sleep

Set Day/TimeSet Program

Aux Ht

Days

Temporary Setting

Room

Repl Batt

DST

Heat

Cool

Em H

Aut

M14559

Fig. 9. Display of all LCD segments.

INSTALLER SETUP NUMBER DISPLAY (COLUMN 2 OF TABLE 3)

Fig. 10. Display of Installer Setup

number and setting.

IMPORTANT

Only configurable numbers are shown on the device. Example: If thermostat does not have a system key, Installer Setup Number 12 will not be displayed. Review Table 3 factory-settings and mark any desired changes in the Actual Setting column. When Installer Setup is complete, review the settings to confirm that they match the system.

FACTORY SETTING OR OTHER CHOICE DISPLAY (COLUMN 3 OR 5 OF TABLE 3)

M14618

Table 3. Thermostat Installer Setup Options.

Select

Installer Setup

Number (Press

Time ∆ key to

change)

Factory Setting

Other Choices

(Press ! or " key to change)

Not Used. 1 thru 4 — — — — —

Heating cycle rate.

5 6 Stage 2 1, 6 or 9 1—1 cph

6—6 cph used for last stage

of heat pump systems

9—9 cph used for electric

heat

6 (Not used) — — — —

7 6 Emergency heat 3, 6 or 9

Not Used. 8 thru 11 — — — — —

System setting adjustment

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12 1 Manual

changeover

0 or 2 0—Auto changeover

2—Fixed auto changeover

Actual

SettingDisplay Description Display Description

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