Robertshaw 9520 Manuel utilisateur

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 pro-

gramming 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

INTEGRATED COMFORT SOLUTIONS

™

DIGITAL

NON-PROGRAMMABLE

THERMOSTAT

9520

User’s Manual

Quick Start

Installation

110-733

HEAT PUMP

110-733C

Features

• Multi Stage heat 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 Model 9520 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 AUTO-ON switch

Into AUTO position.

4. Remove the cover using a coin

or screwdriver.

COOL-OFF-HEAT-EM AUTO - ON

AUX

CHECK EMER

COOL-OFF-HEAT-EM

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

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 east

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 sys-

tem from turning on again. This protects the compressor. No additional

time delay relay is required. To override the 5-minute delay for installation,

press the reset button.

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 AUTO-ON switch to the

ON position. The blower fan should

turn on.

8. Put the AUTO-ON switch to

the AUTO position. The blower fan

should turn off.

COOL-OFF-HEAT-EM

AUTO - ON

COOL-OFF-HEAT-EM

AUTO - ON

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 sys-

tem turns on too often, increase the temperature differential.

1. Press both and buttons

at the same time and hold for one

second. The display will show:

2. Press either the or button

to adjust the temperature

differential up or down.

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 AUTO - ON

AUX

CHECK EMER

COOL-OFF-HEAT-EM AUTO - ON

AUX

CHECK EMER

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 tempera-

ture 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 temper-

ature, check the differential settings (page 6).

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

cator 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).

Display is blank, flashing

or constant “LO BAT”. Replace batteries.

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 cir-

cuit 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: (800) 445-8299

Monday-Friday 7:30-5:30 CST

For warranty returns, send thermostat, shipping prepaid to:

Uni-Line North America

Warranty Claims Department

515 S. Promenade

Corona, CA 91719

RY1 OBG E

W2 LC

ROBERT SHAW HEAT PUMP THERMOSTAT

CARRIER LOW VOLTAGE TERMINAL BOARD

ROBERT SHAW 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

ROBERT SHAW 09620 HEAT PUMP THERMOSTAT

COLEMAN LOW VOLTAGE TERMINAL BOARD

ROBERT SHAW 09620 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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