Aprilaire 8336 Bedienungsanleitung

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.

2 Heat / 2 Cool Digital

Heat Pump

MODEL 8336

User’s Manual

Installation and

Operation

ELECTRONIC THERMOSTATS

Features

• Multi Stage heating and cooling control.

• Zone system compatible as a master thermostat.

• Multi-Colored LED indicators for system status.

• Low battery indicator.

• Fahrenheit/Celsius display option.

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

• Accuracy within ± 1 degree.

• Adjustable temperature differential: 1-3 degrees F.

• 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

R, V-VR or VR-R R 24 VAC, Return

Y, Y1 or M Y Stage 1 Cooling/Heating

Circuit

O or R O Reversing Valve,

(Cooling Mode)

B B Reversing Valve

(Heating Mode)

F or G G Fan control relay

Y2 Y2 2nd Stage Cooling

Circuit

W1 or W2 or W-U W2 2nd Stage Heating

Control

L or X L System Monitor LED

E E Emergency Heating

Circuit

C, X or B C 24 VAC, Transformer

Common Side

*NOTE: This thermostat requires a 24V common wire for proper operation.

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.

Installing the Model 8336 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-EM

In OFF position.

3. Place FAN: AUTO-ON switch

Into AUTO position.

4. Remove the cover using a coin

or screwdriver.

COOL-OFF-HEAT-EM FAN: AUTO - ON

AUX

CHECK EMER

COOL-OFF-HEAT-EM

FAN: AUTO - ON

Figure 1

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.

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.

10. Secure base to wall with supplied screws.

Batteries NOT Required.

Mounting Holes

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

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

12. Put the °F/°C switch to either °F for Fahrenheit display

or °C for Celsius display readout.

figure 4

13. Replace cover onto thermostat by snapping into place.

14. Turn on power to system. Test thermostat as described

in the following section.

Batteries NOT Required.

°F/°C Switch

Operation

Setting or Changing the Setpoint Temperature

1. Press either the or button.

The display will show the current

temperature setpoint.

2. Press either the or button

to adjust the temperature setting

either up or down.

The display will return to the room temperature display five seconds after

the last input and the new setpoint will be saved.

Changing Temperature Differential

IMPORTANT: The temperature differential is factory set at 1 (1°). This

means that whenever the room temperature changes by one half of a

degree from the temperature setting, the system will turn on. If the

system turns on too often, increase the temperature differential.

1. Press both and buttons

at the same time and hold for one

second.

2. Press either the or button

to adjust the temperature

differential up or down.

The display will show:

The display will return to the room temperature five

seconds after the last input.

Differential

Setting Degrees

1 1°F/.5°C

2 2°F/1.0°C

3 3°F/1.5°C

COOL-OFF-HEAT-EM FAN: AUTO - ON

AUX

CHECK EMER

COOL-OFF-HEAT-EM FAN: AUTO - ON

AUX

CHECK EMER

To Test Thermostat

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

VALVE OR SYSTEM CONTROL TO TEST OPERATION. THIS WILL DAMAGE

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-EM

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: When in the COOL mode (or HEAT for single stage heat pumps),

once the thermostat turns off, a built in 5-minute delay prevents the

system from turning on again. This protects the compressor. No

additional time delay relay is required.

3. Put the COOL-OFF-HEAT-EM switch

into the OFF position. The air

conditioning system should turn off.

4. Put the COOL-OFF-HEAT-EM 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-EM switch

into the OFF position. The heating

system should turn off. The fan may

continue to run for a short period

of time.

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-EM

FAN: AUTO - ON

COOL-OFF-HEAT-EM

FAN: AUTO - ON

Changing Fahrenheit (F) to Celsius (C)

The thermostat is preset to display the temperature in degrees Fahrenheit.

You may change the display readout to Celsius if desired.

1. Move the manual switch marked “F” (Fahrenheit) and “C” (Celsius)

located at the top center of the circuit board to the desired setting.

(see page 5)

2. Press RESET button located lust below the LCD display to register

the change.

The display will change to show the temperature in your desired

temperature scale. To return the thermostat to its original setting,

repeat steps 1 and 2 above.

LED Indicators

The LED indicators are used to indicate system activity. The AUX indicator

illuminates during a call for second stage heating. The auxiliary stages

are used to maintain comfort during extremes in weather conditions. If

the AUX LED is illuminated too frequently during periods of moderate

temperature, check the differential settings (page 6).

The CHECK indicator is used to monitor system status. If the CHECK

indicator is illuminated, call your local HVAC service provider.

The EMER indicator is illuminated only when the system switch is moved

to the EM, emergency heat position. The EM position is used only when

the primary stage of heat is not functioning or requires service.

Troubleshooting

Symptom Remedy

Thermostat does not turn

on system.

Check Wiring

(see INSTALLATION).

Check fuse. Replace with 2 amp

fuse if fuse has opened.

Thermostat turns on and

off too frequently.

Increase Temperature Differential

(see DIFFERENTIAL).

System fan does not

operate properly.

Move fan option switch to either

gas or electric, to match system

(see INSTALLATION).

Thermostat does not display

proper room temperature.

Check “F” Fahrenheit /”C” Celsius

switch located at top center of

circuit board for proper position.

If a new selection is made, press

“RESET” button located directly

below LCD display.

If problems with thermostat cannot be solved, call:

Technical Support: 608-257-8801

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

RY1 OBG E

W2 LC

APRILAIRE MODEL 8336 HEAT PUMP THERMOSTAT

CARRIER LOW VOLTAGE TERMINAL BOARD

APRILAIRE MODEL 8336 HEAT PUMP THERMOSTAT CONVERSION TO CARRIER

SPLIT SYSTEM CONDENSORS AND HEAT PUMP SYSTEMS

THE LOW VOLTAGE TERMINAL DESIGNATIONS AND THEIR DESCRIPTION AND/OR

FUNCTION ARE USED ON ALL SPLIT SYSTEM CONDENSORS AND HEAT PUMPS

24 VAC, RETURN

COMPRESSOR CONTACTOR

REVERSING VALVE [COOLING MODE]

FAN CONTACTOR CIRCUIT

EMERGENCY HEATING CIRCUIT

2ND. STAGE HEATING CIRCUIT

SYSTEM MONITOR LED

24 VAC, COMMON

RY1 OBG E

W2 LC

APRILAIRE MODEL 8336 HEAT PUMP THERMOSTAT

COLEMAN LOW VOLTAGE TERMINAL BOARD

APRILAIRE MODEL 8336 HEAT PUMP CONVERSION TO COLEMAN HEAT PUMPS

3000 SERIES HEAT PUMP SYSTEMS

THE LOW VOLTAGE TERMINAL DESIGNATIONS AND THEIR DESCRIPTION AND/OR

FUNCTION ARE USED ON ALL SPLIT SYSTEM CONDENSORS AND HEAT PUMPS

24 VAC, RETURN

COMPRESSOR CONTACTOR

REVERSING VALVE [HEATING MODE]

FAN CONTACTOR CIRCUIT

EMERGENCY HEATING CIRCUIT

2ND. STAGE HEATING CIRCUIT

SYSTEM MONITOR LED

24 VAC, COMMON

Wiring Diagrams

The following is just a sample of the most common types of HVAC

systems. Refer to your systems installation manual for wiring information.

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