Aprilaire 8353 Manual de usuario

Installation Guide

IMPORTANT SAFETY INFORMATION WARNING:

•Always turn off power at the main power source by unscrewing

fuse or switching circuit breaker to the off position before installing,

removing, cleaning, or servicing thermostat.

•Read all of the information in this manual before installing or

programming this thermostat.

•This is a 24V AC low-voltage thermostat. Do not install on voltages

higher than 30V AC.

•All wiring must conform to local and national building and electrical

codes and ordinances.

•Do not short (jumper) across terminals on the gas valve or at the

system control to test installation. This will damage the thermostat

and void the warranty.

5-2 Day Programmable

1 Heat / 1 Cool

Electric / Gas

MODEL 8353

User’s Manual

Installation and

Programming

ELECTRONIC THERMOSTATS

Features

• Four setpoints for weekday programming—two setpoints for

weekend comfort.

• Two “AA” ENERGIZER brand batteries retain program memory,

even during power outages.

• Low battery indicator.

• Fahrenheit/Celsius display option.

• Programmable from 45°F (4°C) to 90°F (32°C).

• Accuracy within ± 1 degree.

• Adjustable temperature differential: 1-3 degrees.

• Maintains summer and winter programming.

• Low temperature freeze protection. While in heat mode, thermostat

will mechanically turn on heat if temperature drops to 40°F (4°C) –

even if batteries are missing or drained.

• Automatic heating shutdown if temperature exceeds 90°F (32°C).

Replacing Existing Thermostat

1. Turn off power to heating and cooling system.

2. Remove cover of old thermostat to expose wires. Do not

disconnect wires. (Fig. 1)

3. Label wires per Table 1.

Table 1

Old Label New Label Description

M, 4, RH, R5 or R RH Heat Transformer,

hot side

V or RC RC Cooling Transformer, hot

side

Y or Y6 Y Cooling control

H, W or 4 W Heating control

F or G G Fan control relay

C* Y or None Either cooling control or

common side of trans-

former

*NOTE: On some older models, the C terminal can be either the cooling-

control or the common side of the transformer. Check furnace wiring

diagram to verify C terminal. If it is the common side of the transformer,

cap the wire and tuck into the wall. If it is the cooling control, connect to

the Y terminal.

4. After labeling wires, remove wires from terminals.

5. Remove existing thermostat base from wall.

6. Refer to the following section for instructions on how to

install thermostat.

Figure 1

Installing the Model 8353 Thermostat

NOTE: For new installations, mount thermostat on inside wall, 4-5 feet

above the floor. Do not install behind a door, in a corner, near air vents,

in direct sunlight, or near any heat or steam generating fixtures.

Installation at these places will affect thermostat operation.

1. Turn power off to the heating and cooling systems.

2. Place COOL-OFF-HEAT In OFF position.

3. Place FAN: AUTO–ON switch

Into AUTO position.

4. Remove the cover using a coin

or screwdriver.

Figure 2

5. Place thermostat against the wall at desired location. Make sure

wires will feed through opening on base of thermostat.

6. Mark placement of mounting holes. See Fig. 3. Set base aside.

PROG

MAN

SET PROG/MAN COOL-OFF-HEAT FAN: AUTO - ON

COOL-OFF-HEAT

FAN: AUTO-ON

Figure 3

7. Drill the marked holes using a 3/16” drill bit. Note: Enclosed plastic

anchors do not require a drilled hole for drywall.

8. Tap plastic anchors into the wall.

9. Align base with plastic anchors and feed wires through opening.

See Fig 4.

Figure 4

10. Secure base to wall with supplied screws.

11. Connect wires to terminal strip. Refer to wiring diagrams on other

side of this sheet. Make sure wire connections are secure.

12. Place fan option switch into either the “ELEC” or “GAS” position

depending upon the type of furnace. Refer to Figure 5.

Figure 5

PROG

MAN

CHANGE SET AUTO/MAN

Elec

Gas

MORN DAY EVE NITE

FAN AUTO ON

MOUNTING HOLES

COOL OFF HEAT

PROG

MAN

CHANGE SET AUTO/MAN

Elec

Gas

MORN DAY EVE NITE

FAN AUTO ONCOOL OFF HEAT

PROG

MAN

CHANGE SET AUTO/MAN

Elec

Gas

MORN DAY EVE NITE

FAN AUTO ON

FAN

OPTION

SWITCH

Controls

fan delay.

COOL OFF HEAT

13. Install two “AA” ENERGIZER brand batteries or equivalent into

battery compartment. Be sure to match positive (+) ends of batteries

with positive (+) battery terminals in the battery compartment. The

display will show as follows:

14. Replace cover onto thermostat by snapping into place.

15. Turn on power to system . Test thermostat as described in the

following section.

Programming Guide

Set Time of Day, Day of Week,

Temperature Differential

1. Press & Hold SET. Press PROG/MAN

Release simultaneously.

2. Press or to change

Time of Day.

3. Press 4. Press

To Change

Day of Week

PROG

MAN

SET PROG/MAN COOL-OFF-HEAT FAN: AUTO - ON

SET PROG/MAN

SET P

1=MO

2=TU

3=WE

4=TH

5=FR

6=SA

7=SU

5. Press 6. Press

To change

Temperature Differential*

*The Temperature Differential is Factory preset at 1°. This means that

whenever the room temperature changes by one full degree from the

temperature setting, the system will turn on. If the system turns on too

often, increase the temperature differential.

7. Press SET to finish.

Changing Fahrenheit (F) to Celsius (C)

Press and Hold SET Press

Release both simultaneously.

Setting Daily Programming

1. Place COOL-OFF-HEAT switch

in COOL position.

2. Press SET.

3. Press or to change

MORN time in 30-minute

intervals.

SET P

SET

PROG

MAN

SET PROG/MAN COOL-OFF-HEAT FAN: AUTO - ON

COOL-OFF-HEAT

SET PR

4. Press SET.

5. Press or to change

MORN temperature.

6. Repeat Steps 2-5 for DAY, EVE, and NITE.

7. Press SET to finish.

8. Shift COOL-OFF-HEAT switch to

HEAT position.

9. Repeat steps 2-7 to program HEAT (winter) settings.

NOTE: Both summer and winter programs use the same time settings.

Your thermostat is now programmed for summer and winter operation.

It will follow the four settings (MORN, DAY, EVE, NITE) for weekday

operation and two settings (MORN and NITE) for weekend operation.

Adjust the program at any time by following the steps as outlined above.

Begin Programmed Operation

1. Place FAN: AUTO–ON switch

Into AUTO.

2. Place COOL-OFF-HEAT switch

Into COOL or HEAT

Depending upon the season.

3. Press PROG/MAN button

until indicator is in PROG position.

PROG

MAN

SET PROG/MAN COOL-OFF-HEAT FAN: AUTO - ON

SET PR

COOL-OFF-HEAT

PROG

MAN

SET PROG/MAN COOL-OFF-HEAT FAN: AUTO - ON

FAN: AUTO-ON

COOL-OFF-HEAT

SUMMER

WINTER

ET PROG/MAN

PROG

MAN

PROG

MAN

SET PROG/MAN COOL-OFF-HEAT FAN: AUTO - ON

Temporary Program Override

To temporarily increase or decrease temperature

Press or

The thermostat will automatically return

to the program at the next scheduled

setting change or after four hours.

Manual Operation

Manual operation allows continuous override of the program settings.

1. Press PROG/MAN until indicator is in MAN position.

2. Press or to adjust

temperature settings.

Reset

To reset the thermostat to factory pre-programmed

conditions, press the reset button located directly

to the right of the display.

PROG

MAN

SET PROG/MAN COOL-OFF-HEAT FAN: AUTO - ON

PROG

MAN

SET PROG/MAN COOL-OFF-HEAT FAN: AUTO - ON

T PROG/MAN

PROG

MAN

PROG

MAN

CHANGE SET AUTO/MAN

Elec

Gas

MORN DAY EVE NITE

FAN AUTO ON

RESET

BUTTON

COOL OFF HEAT

To Test Thermostat

WARNING: DO NOT SHORT (JUMPER) ACROSS TERMINALS OF GAS

VALVE OR SYSTEM CONTROL TO TEST OPERATION. THIS WILL DAM-

AGE THE THERMOSTAT AND VOID YOUR WARRANTY.

CAUTION: Do not switch system to cool if the temperature is below

50°F (10°C). This can damage the air conditioning system and cause

personal injury.

1. Place the COOL-OFF-HEAT

switch into the COOL position

2. Press the button until the temperature

setting is at least 3 degrees below the room temperature. The

air conditioning system should turn on within a few seconds.

NOTE: There is a built in 5-minute delay on break for compressor

protection. A second attempt to turn on the air conditioning will

result in a 5-minute delay in compressor activation.

3. Put the COOL-OFF-HEAT switch into

the OFF position. The air conditioning

system should turn off. The fan may

continue to run for a short period of time.

4. Put the COOL-OFF-HEAT switch

into the HEAT position.

5. Press the button until the temperature setting is at least

3 degrees above room temperature. The heating system should

turn on. The fan may not turn on immediately, depending upon

the fan delay built into the furnace.

6. Put the COOL-OFF-HEAT switch

into the OFF position. The heating

system should turn off. Once again,

the fan may have a delay.

7. Put the FAN: AUTO–ON switch

to the ON position. The blower

fan should turn on.

8. Put the FAN: AUTO–ON switch

to the AUTO position. The blower

fan should turn off.

COOL-OFF-HEAT

FAN: AUTO - ON

FAN: AUTO-ON

COOL-OFF-HEAT

Troubleshooting

Symptom Remedy

Thermostat does not turn Check Wiring

on system (see INSTALLATION).

Check fuse. Replace with 2 amp

Slo-Blo fuse if fuse has opened.

Thermostat turns on and off too Increase Temperature Differential

frequently. (see PROGRAMMING).

Display is blank, flashing or Replace batteries.

constant “LO BAT.”

Weekend Program follows four Verify that day of week is set

adjustment settings. correctly (see PROGRAMMING).

System fan does not operate Move fan option switch to either

properly. gas or electric, to match system

(see INSTALLATION).

Time shown on display is not the Change time of day setting

current time of day. (see PROGRAMMING).

Thermostat does not Thermostat in MANUAL mode

follow program. (see PROGRAMMING).

Thermostat may not have been

programmed in HEAT or COOL

position. Verify program.

Check AM/PM indicators at time

of day and programmed time

changes (see PROGRAMMING).

Verify program and day of week

is correct (see PROGRAMMING).

If problems with thermostat cannot be solved, call:

Technical Support: 608-257-8801

Monday-Friday 7:45 am - 5:00 pm CST

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