Robertshaw 9505 Users Manual 110 735B

2015-01-21

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1 Heat

User’s Manual

• 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.

SYSTEM: ON-OFF

ELEC/
GAS SWITCH
SYSTEM: ON-OFF

AUTO - ON

Replacing Existing Thermostat
1. Turn off power to heating and cooling system.

3. Place
AUTO-ON switch
Into AUTO position.

Figure 4

Table 1

SYSTEM: ON-OFF

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.

• This is a 24V AC low-voltage thermostat. Do not install on voltages
higher than 30V AC.

Heat Transformer,
hot side

H, W or 4

Heating control

F or G

Fan control relay

°F/°C
Switch

*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.
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.

5. Place thermostat against the wall at desired location. Make sure
wires will feed through opening on base of thermostat.

2. Press the
button until the
temperature setting is at east
3 degrees above the room
temperature. The heating
system should turn on within
a few seconds.

AUTO - ON

5. Put the
AUTO-ON switch
to the AUTO position. The
blower fan should turn off.

MOUNTING HOLES

• All wiring must conform to local and national building and electrical
codes and ordinances.

AUTO - ON

NOTE: Some heat only systems do not have a separate fan control.

• 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

SYSTEM: ON-OFF

AUTO - ON

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
.5°
2
1.0°
3
1.5°

Figure 1

SYSTEM: ON-OFF

4. Put the
AUTO-ON switch
to the ON position. The blower
fan should turn on.

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

Changing Temperature Differential
IMPORTANT: The temperature differential is factory set at 1 (.5°). 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. The display will show:

3. Put the SYSTEM: ON-OFF
switch into the OFF position.
The heating system
should turn off.

Figure 2

The display will return to the room temperature display five seconds after
the last input and the new setpoint will be saved.

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

Description

AUTO - ON

2. Press either the
or
button
to adjust the temperature setting
either up or down.

IMPORTANT SAFETY INFORMATION

New Label

13. Put the °F/°C switch to either °F for Fahrenheit display
or °C for Celsius display readout.

1. Place the SYSTEM: ON-OFF
switch into the ON position

Old Label

M, 4, RH, R5 or R

16. Turn on power to system . Test thermostat as described in the following section.

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.

RRANTY

SYSTEM: ON-OFF

15. Replace cover onto thermostat by snapping into place.

To Test Thermostat

AUTO - ON

4. Remove the cover using a coin
or screwdriver.

3. Label wires per Table 1.

110-735B
110-735

2. Place SYSTEM ON-OFF
In OFF position.

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

2. Remove cover of old thermostat to expose wires.
Do not disconnect wires. (Fig. 1)

12. Place fan option switch into either the "ELEC" or "GAS" position
depending upon the type of furnace. Refer to Figure 4

Quick Start
Installation and
Programming

• Adjustable temperature differential: .5 – 1.5 degree.

7. Drill the marked holes using a 3/16" drill bit. NOTE: Enclosed plastic
anchors do not require a drilled hole for drywall.
3

MILLIVOLT

GAS

ELECTRIC

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

• Accuracy within ±1 degree.

11. Connect wires to terminal strip. Refer to wiring diagrams on other
side of this sheet. Make sure wire connections are secure.

Setting or Changing the Setpoint Temperature
1. Press either the
or
button.
The display will show the current
temperature setpoint.

10. Secure base to wall with supplied screws.

Operation

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

INTEGRATED COMFORT SOLUTIONS™

14. 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:

• Fahrenheit/Celsius display option.

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.

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

• Low battery indicator.

8. Tap plastic anchors into the wall.

THERMOSTAT

• Milli-volt system compatible

Installing Model 9505 Thermostat

NON-PROGRAMMABLE

9505

Features

DIGITAL

1 Heat

User’s Manual

• 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.

SYSTEM: ON-OFF

ELEC/
GAS SWITCH
SYSTEM: ON-OFF

AUTO - ON

Replacing Existing Thermostat
1. Turn off power to heating and cooling system.

3. Place
AUTO-ON switch
Into AUTO position.

Figure 4

Table 1

SYSTEM: ON-OFF

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.

• This is a 24V AC low-voltage thermostat. Do not install on voltages
higher than 30V AC.

Heat Transformer,
hot side

H, W or 4

Heating control

F or G

Fan control relay

°F/°C
Switch

5. Place thermostat against the wall at desired location. Make sure
wires will feed through opening on base of thermostat.

2. Press the
button until the
temperature setting is at east
3 degrees above the room
temperature. The heating
system should turn on within
a few seconds.

AUTO - ON

5. Put the
AUTO-ON switch
to the AUTO position. The
blower fan should turn off.

MOUNTING HOLES

• All wiring must conform to local and national building and electrical
codes and ordinances.

AUTO - ON

NOTE: Some heat only systems do not have a separate fan control.

• 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

SYSTEM: ON-OFF

AUTO - ON

Figure 1

SYSTEM: ON-OFF

4. Put the
AUTO-ON switch
to the ON position. The blower
fan should turn on.

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

3. Put the SYSTEM: ON-OFF
switch into the OFF position.
The heating system
should turn off.

Figure 2

The display will return to the room temperature display five seconds after
the last input and the new setpoint will be saved.

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

Description

AUTO - ON

2. Press either the
or
button
to adjust the temperature setting
either up or down.

IMPORTANT SAFETY INFORMATION

New Label

13. Put the °F/°C switch to either °F for Fahrenheit display
or °C for Celsius display readout.

1. Place the SYSTEM: ON-OFF
switch into the ON position

Old Label

M, 4, RH, R5 or R

16. Turn on power to system . Test thermostat as described in the following section.

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.

RRANTY

SYSTEM: ON-OFF

15. Replace cover onto thermostat by snapping into place.

To Test Thermostat

AUTO - ON

4. Remove the cover using a coin
or screwdriver.

3. Label wires per Table 1.

110-735B
110-735

2. Place SYSTEM ON-OFF
In OFF position.

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

2. Remove cover of old thermostat to expose wires.
Do not disconnect wires. (Fig. 1)

12. Place fan option switch into either the "ELEC" or "GAS" position
depending upon the type of furnace. Refer to Figure 4

Quick Start
Installation and
Programming

• Adjustable temperature differential: .5 – 1.5 degree.

7. Drill the marked holes using a 3/16" drill bit. NOTE: Enclosed plastic
anchors do not require a drilled hole for drywall.
3

MILLIVOLT

GAS

ELECTRIC

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

• Accuracy within ±1 degree.

11. Connect wires to terminal strip. Refer to wiring diagrams on other
side of this sheet. Make sure wire connections are secure.

Setting or Changing the Setpoint Temperature
1. Press either the
or
button.
The display will show the current
temperature setpoint.

10. Secure base to wall with supplied screws.

Operation

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

INTEGRATED COMFORT SOLUTIONS™

• Fahrenheit/Celsius display option.

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

• Low battery indicator.

8. Tap plastic anchors into the wall.

THERMOSTAT

• Milli-volt system compatible

Installing Model 9505 Thermostat

NON-PROGRAMMABLE

9505

Features

DIGITAL

1 Heat

User’s Manual

• 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.

SYSTEM: ON-OFF

ELEC/
GAS SWITCH
SYSTEM: ON-OFF

AUTO - ON

Replacing Existing Thermostat
1. Turn off power to heating and cooling system.

3. Place
AUTO-ON switch
Into AUTO position.

Figure 4

Table 1

SYSTEM: ON-OFF

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.

• This is a 24V AC low-voltage thermostat. Do not install on voltages
higher than 30V AC.

Heat Transformer,
hot side

H, W or 4

Heating control

F or G

Fan control relay

°F/°C
Switch

5. Place thermostat against the wall at desired location. Make sure
wires will feed through opening on base of thermostat.

2. Press the
button until the
temperature setting is at east
3 degrees above the room
temperature. The heating
system should turn on within
a few seconds.

AUTO - ON

5. Put the
AUTO-ON switch
to the AUTO position. The
blower fan should turn off.

MOUNTING HOLES

• All wiring must conform to local and national building and electrical
codes and ordinances.

AUTO - ON

NOTE: Some heat only systems do not have a separate fan control.

• 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

SYSTEM: ON-OFF

AUTO - ON

Figure 1

SYSTEM: ON-OFF

4. Put the
AUTO-ON switch
to the ON position. The blower
fan should turn on.

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

3. Put the SYSTEM: ON-OFF
switch into the OFF position.
The heating system
should turn off.

Figure 2

The display will return to the room temperature display five seconds after
the last input and the new setpoint will be saved.

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

Description

AUTO - ON

2. Press either the
or
button
to adjust the temperature setting
either up or down.

IMPORTANT SAFETY INFORMATION

New Label

13. Put the °F/°C switch to either °F for Fahrenheit display
or °C for Celsius display readout.

1. Place the SYSTEM: ON-OFF
switch into the ON position

Old Label

M, 4, RH, R5 or R

16. Turn on power to system . Test thermostat as described in the following section.

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.

RRANTY

SYSTEM: ON-OFF

15. Replace cover onto thermostat by snapping into place.

To Test Thermostat

AUTO - ON

4. Remove the cover using a coin
or screwdriver.

3. Label wires per Table 1.

110-735B
110-735

2. Place SYSTEM ON-OFF
In OFF position.

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

2. Remove cover of old thermostat to expose wires.
Do not disconnect wires. (Fig. 1)

12. Place fan option switch into either the "ELEC" or "GAS" position
depending upon the type of furnace. Refer to Figure 4

Quick Start
Installation and
Programming

• Adjustable temperature differential: .5 – 1.5 degree.

7. Drill the marked holes using a 3/16" drill bit. NOTE: Enclosed plastic
anchors do not require a drilled hole for drywall.
3

MILLIVOLT

GAS

ELECTRIC

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

• Accuracy within ±1 degree.

11. Connect wires to terminal strip. Refer to wiring diagrams on other
side of this sheet. Make sure wire connections are secure.

Setting or Changing the Setpoint Temperature
1. Press either the
or
button.
The display will show the current
temperature setpoint.

10. Secure base to wall with supplied screws.

Operation

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

INTEGRATED COMFORT SOLUTIONS™

• Fahrenheit/Celsius display option.

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

• Low battery indicator.

8. Tap plastic anchors into the wall.

THERMOSTAT

• Milli-volt system compatible

Installing Model 9505 Thermostat

NON-PROGRAMMABLE

9505

Features

DIGITAL

1 Heat

User’s Manual

• 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.

SYSTEM: ON-OFF

ELEC/
GAS SWITCH
SYSTEM: ON-OFF

AUTO - ON

Replacing Existing Thermostat
1. Turn off power to heating and cooling system.

3. Place
AUTO-ON switch
Into AUTO position.

Figure 4

Table 1

SYSTEM: ON-OFF

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.

• This is a 24V AC low-voltage thermostat. Do not install on voltages
higher than 30V AC.

Heat Transformer,
hot side

H, W or 4

Heating control

F or G

Fan control relay

°F/°C
Switch

5. Place thermostat against the wall at desired location. Make sure
wires will feed through opening on base of thermostat.

2. Press the
button until the
temperature setting is at east
3 degrees above the room
temperature. The heating
system should turn on within
a few seconds.

AUTO - ON

5. Put the
AUTO-ON switch
to the AUTO position. The
blower fan should turn off.

MOUNTING HOLES

• All wiring must conform to local and national building and electrical
codes and ordinances.

AUTO - ON

NOTE: Some heat only systems do not have a separate fan control.

• 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

SYSTEM: ON-OFF

AUTO - ON

Figure 1

SYSTEM: ON-OFF

4. Put the
AUTO-ON switch
to the ON position. The blower
fan should turn on.

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

3. Put the SYSTEM: ON-OFF
switch into the OFF position.
The heating system
should turn off.

Figure 2

The display will return to the room temperature display five seconds after
the last input and the new setpoint will be saved.

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

Description

AUTO - ON

2. Press either the
or
button
to adjust the temperature setting
either up or down.

IMPORTANT SAFETY INFORMATION

New Label

13. Put the °F/°C switch to either °F for Fahrenheit display
or °C for Celsius display readout.

1. Place the SYSTEM: ON-OFF
switch into the ON position

Old Label

M, 4, RH, R5 or R

16. Turn on power to system . Test thermostat as described in the following section.

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.

RRANTY

SYSTEM: ON-OFF

15. Replace cover onto thermostat by snapping into place.

To Test Thermostat

AUTO - ON

4. Remove the cover using a coin
or screwdriver.

3. Label wires per Table 1.

110-735B
110-735

2. Place SYSTEM ON-OFF
In OFF position.

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

2. Remove cover of old thermostat to expose wires.
Do not disconnect wires. (Fig. 1)

12. Place fan option switch into either the "ELEC" or "GAS" position
depending upon the type of furnace. Refer to Figure 4

Quick Start
Installation and
Programming

• Adjustable temperature differential: .5 – 1.5 degree.

7. Drill the marked holes using a 3/16" drill bit. NOTE: Enclosed plastic
anchors do not require a drilled hole for drywall.
3

MILLIVOLT

GAS

ELECTRIC

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

• Accuracy within ±1 degree.

11. Connect wires to terminal strip. Refer to wiring diagrams on other
side of this sheet. Make sure wire connections are secure.

Setting or Changing the Setpoint Temperature
1. Press either the
or
button.
The display will show the current
temperature setpoint.

10. Secure base to wall with supplied screws.

Operation

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

INTEGRATED COMFORT SOLUTIONS™

• Fahrenheit/Celsius display option.

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

• Low battery indicator.

8. Tap plastic anchors into the wall.

THERMOSTAT

• Milli-volt system compatible

Installing Model 9505 Thermostat

NON-PROGRAMMABLE

9505

Features

DIGITAL

1 Heat

User’s Manual

• 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.

SYSTEM: ON-OFF

ELEC/
GAS SWITCH
SYSTEM: ON-OFF

AUTO - ON

Replacing Existing Thermostat
1. Turn off power to heating and cooling system.

3. Place
AUTO-ON switch
Into AUTO position.

Figure 4

Table 1

SYSTEM: ON-OFF

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.

• This is a 24V AC low-voltage thermostat. Do not install on voltages
higher than 30V AC.

Heat Transformer,
hot side

H, W or 4

Heating control

F or G

Fan control relay

°F/°C
Switch

5. Place thermostat against the wall at desired location. Make sure
wires will feed through opening on base of thermostat.

2. Press the
button until the
temperature setting is at east
3 degrees above the room
temperature. The heating
system should turn on within
a few seconds.

AUTO - ON

5. Put the
AUTO-ON switch
to the AUTO position. The
blower fan should turn off.

MOUNTING HOLES

• All wiring must conform to local and national building and electrical
codes and ordinances.

AUTO - ON

NOTE: Some heat only systems do not have a separate fan control.

• 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

SYSTEM: ON-OFF

AUTO - ON

Figure 1

SYSTEM: ON-OFF

4. Put the
AUTO-ON switch
to the ON position. The blower
fan should turn on.

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

3. Put the SYSTEM: ON-OFF
switch into the OFF position.
The heating system
should turn off.

Figure 2

The display will return to the room temperature display five seconds after
the last input and the new setpoint will be saved.

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

Description

AUTO - ON

2. Press either the
or
button
to adjust the temperature setting
either up or down.

IMPORTANT SAFETY INFORMATION

New Label

13. Put the °F/°C switch to either °F for Fahrenheit display
or °C for Celsius display readout.

1. Place the SYSTEM: ON-OFF
switch into the ON position

Old Label

M, 4, RH, R5 or R

16. Turn on power to system . Test thermostat as described in the following section.

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.

RRANTY

SYSTEM: ON-OFF

15. Replace cover onto thermostat by snapping into place.

To Test Thermostat

AUTO - ON

4. Remove the cover using a coin
or screwdriver.

3. Label wires per Table 1.

110-735B
110-735

2. Place SYSTEM ON-OFF
In OFF position.

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

2. Remove cover of old thermostat to expose wires.
Do not disconnect wires. (Fig. 1)

12. Place fan option switch into either the "ELEC" or "GAS" position
depending upon the type of furnace. Refer to Figure 4

Quick Start
Installation and
Programming

• Adjustable temperature differential: .5 – 1.5 degree.

7. Drill the marked holes using a 3/16" drill bit. NOTE: Enclosed plastic
anchors do not require a drilled hole for drywall.
3

MILLIVOLT

GAS

ELECTRIC

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

• Accuracy within ±1 degree.

11. Connect wires to terminal strip. Refer to wiring diagrams on other
side of this sheet. Make sure wire connections are secure.

Setting or Changing the Setpoint Temperature
1. Press either the
or
button.
The display will show the current
temperature setpoint.

10. Secure base to wall with supplied screws.

Operation

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

INTEGRATED COMFORT SOLUTIONS™

• Fahrenheit/Celsius display option.

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

• Low battery indicator.

8. Tap plastic anchors into the wall.

THERMOSTAT

• Milli-volt system compatible

Installing Model 9505 Thermostat

NON-PROGRAMMABLE

9505

Features

DIGITAL

1 Heat

User’s Manual

• 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.

SYSTEM: ON-OFF

ELEC/
GAS SWITCH
SYSTEM: ON-OFF

AUTO - ON

Replacing Existing Thermostat
1. Turn off power to heating and cooling system.

3. Place
AUTO-ON switch
Into AUTO position.

Figure 4

Table 1

SYSTEM: ON-OFF

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.

• This is a 24V AC low-voltage thermostat. Do not install on voltages
higher than 30V AC.

Heat Transformer,
hot side

H, W or 4

Heating control

F or G

Fan control relay

°F/°C
Switch

5. Place thermostat against the wall at desired location. Make sure
wires will feed through opening on base of thermostat.

2. Press the
button until the
temperature setting is at east
3 degrees above the room
temperature. The heating
system should turn on within
a few seconds.

AUTO - ON

5. Put the
AUTO-ON switch
to the AUTO position. The
blower fan should turn off.

MOUNTING HOLES

• All wiring must conform to local and national building and electrical
codes and ordinances.

AUTO - ON

NOTE: Some heat only systems do not have a separate fan control.

• 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

SYSTEM: ON-OFF

AUTO - ON

Figure 1

SYSTEM: ON-OFF

4. Put the
AUTO-ON switch
to the ON position. The blower
fan should turn on.

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

3. Put the SYSTEM: ON-OFF
switch into the OFF position.
The heating system
should turn off.

Figure 2

The display will return to the room temperature display five seconds after
the last input and the new setpoint will be saved.

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

Description

AUTO - ON

2. Press either the
or
button
to adjust the temperature setting
either up or down.

IMPORTANT SAFETY INFORMATION

New Label

13. Put the °F/°C switch to either °F for Fahrenheit display
or °C for Celsius display readout.

1. Place the SYSTEM: ON-OFF
switch into the ON position

Old Label

M, 4, RH, R5 or R

16. Turn on power to system . Test thermostat as described in the following section.

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.

RRANTY

SYSTEM: ON-OFF

15. Replace cover onto thermostat by snapping into place.

To Test Thermostat

AUTO - ON

4. Remove the cover using a coin
or screwdriver.

3. Label wires per Table 1.

110-735B
110-735

2. Place SYSTEM ON-OFF
In OFF position.

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

2. Remove cover of old thermostat to expose wires.
Do not disconnect wires. (Fig. 1)

12. Place fan option switch into either the "ELEC" or "GAS" position
depending upon the type of furnace. Refer to Figure 4

Quick Start
Installation and
Programming

• Adjustable temperature differential: .5 – 1.5 degree.

7. Drill the marked holes using a 3/16" drill bit. NOTE: Enclosed plastic
anchors do not require a drilled hole for drywall.
3

MILLIVOLT

GAS

ELECTRIC

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

• Accuracy within ±1 degree.

11. Connect wires to terminal strip. Refer to wiring diagrams on other
side of this sheet. Make sure wire connections are secure.

Setting or Changing the Setpoint Temperature
1. Press either the
or
button.
The display will show the current
temperature setpoint.

10. Secure base to wall with supplied screws.

Operation

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

INTEGRATED COMFORT SOLUTIONS™

• Fahrenheit/Celsius display option.

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

• Low battery indicator.

8. Tap plastic anchors into the wall.

THERMOSTAT

• Milli-volt system compatible

Installing Model 9505 Thermostat

NON-PROGRAMMABLE

9505

Features

DIGITAL

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 4)
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.

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).

If problems with thermostat cannot be solved, call:
Technical Support: (800) 445-8299
Monday-Friday 7:30-5:30 CST
For after hours service, a 24-hour
Automated Help Line is available

Wiring Diagrams

HEAT ONLY
2-WIRE
SINGLE TRANSFORMER

For warranty returns, send thermostat, shipping prepaid to:

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.

Transformer

Uni-Line North America
Warranty Claims Department
515 S. Promenade
Corona, CA 91719

Five Year Limited Warranty
Maple Chase Company warrants to the original contractor installer or

The following is just a sample of the most common types of HVAC systems. Refer to your systems installation manual for wiring information.

Hot
120 VAC
24 VAC

HEATING
CONTROL

W
G

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..

HEAT ONLY
3-WIRE
SINGLE TRANSFORMER
Transformer
Hot

T
H
E
R
M
O
S
T
A
T

120 VAC

24 VAC

HEATING
CONTROL

FAN
CONTROL

W
G

T
H
E
R
M
O
S
T
A
T

Pilot
Generator

R
W
G

CAUTION: DO

Maple Chase Company agrees to repair or replace at its option any
thermostat under warranty provided it is returned within the warranty
period, postage prepaid, with proof of the date of purchase. Cost of thermostat removal or reinstallation is not the responsibility of Maple Chase
Company.
Repair or replacement as provided under this warranty is the exclusive
remedy of the consumer. Maple Chase Company shall not be liable for
any incidental or consequential damages for breach of any express or
implied warranty on this product, or under any other theory of liability.
Except to the extent prohibited by applicable law, any implied warranty of
merchantability or fitness for a particular purpose on this product is limited to the duration of this warranty.
Some states do not allow the exclusion or limitation of incidental or consequential damages, or allow limitations on how long an implied warranty
lasts, so the above limitations or exclusions may not apply to you. This
warranty gives you specific legal rights, and you may also have other
rights which vary from state to state.

250-750
MILLIVOLT SYSTEM

Gas valve

to the original consumer user, each new Maple Chase thermostat to be
free from defects in materials and workmanship under normal use and
service for a period of five (5) years from date of purchase. This warranty
and our liability does not apply to batteries or the merchandise that has
been damaged, caused by misuse, neglect, mishandling, alterations,
improper installation, or use in a way other than in accordance with
Maple Chase Company recommendations and instructions.

T
H
E
R
M
O
S
T
A
T

NOT USE THIS THERMOSTAT WITH MULTI-STAGE HEATING SYSTEMS.

Maple Chase Company
2820 Thatcher Road
Downers Grove, Illinois 60515
United States of America

A Siebe Group Company

110-735

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).

If problems with thermostat cannot be solved, call:
Technical Support: (800) 445-8299
Monday-Friday 7:30-5:30 CST
For after hours service, a 24-hour
Automated Help Line is available

Wiring Diagrams

HEAT ONLY
2-WIRE
SINGLE TRANSFORMER

For warranty returns, send thermostat, shipping prepaid to:

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.

Transformer

Uni-Line North America
Warranty Claims Department
515 S. Promenade
Corona, CA 91719

Five Year Limited Warranty
Maple Chase Company warrants to the original contractor installer or

The following is just a sample of the most common types of HVAC systems. Refer to your systems installation manual for wiring information.

Hot
120 VAC
24 VAC

HEATING
CONTROL

W
G

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..

HEAT ONLY
3-WIRE
SINGLE TRANSFORMER
Transformer
Hot

T
H
E
R
M
O
S
T
A
T

120 VAC

24 VAC

HEATING
CONTROL

FAN
CONTROL

W
G

T
H
E
R
M
O
S
T
A
T

Pilot
Generator

R
W
G

CAUTION: DO

250-750
MILLIVOLT SYSTEM

Gas valve

T
H
E
R
M
O
S
T
A
T

NOT USE THIS THERMOSTAT WITH MULTI-STAGE HEATING SYSTEMS.

Maple Chase Company
2820 Thatcher Road
Downers Grove, Illinois 60515
United States of America

A Siebe Group Company

110-735

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).

If problems with thermostat cannot be solved, call:
Technical Support: (800) 445-8299
Monday-Friday 7:30-5:30 CST
For after hours service, a 24-hour
Automated Help Line is available

Wiring Diagrams

HEAT ONLY
2-WIRE
SINGLE TRANSFORMER

For warranty returns, send thermostat, shipping prepaid to:

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.

Transformer

Uni-Line North America
Warranty Claims Department
515 S. Promenade
Corona, CA 91719

Five Year Limited Warranty
Maple Chase Company warrants to the original contractor installer or

The following is just a sample of the most common types of HVAC systems. Refer to your systems installation manual for wiring information.

Hot
120 VAC
24 VAC

HEATING
CONTROL

W
G

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..

HEAT ONLY
3-WIRE
SINGLE TRANSFORMER
Transformer
Hot

T
H
E
R
M
O
S
T
A
T

120 VAC

24 VAC

HEATING
CONTROL

FAN
CONTROL

W
G

T
H
E
R
M
O
S
T
A
T

Pilot
Generator

R
W
G

CAUTION: DO

250-750
MILLIVOLT SYSTEM

Gas valve

T
H
E
R
M
O
S
T
A
T

NOT USE THIS THERMOSTAT WITH MULTI-STAGE HEATING SYSTEMS.

Maple Chase Company
2820 Thatcher Road
Downers Grove, Illinois 60515
United States of America

A Siebe Group Company

110-735

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).

If problems with thermostat cannot be solved, call:
Technical Support: (800) 445-8299
Monday-Friday 7:30-5:30 CST
For after hours service, a 24-hour
Automated Help Line is available

Wiring Diagrams

HEAT ONLY
2-WIRE
SINGLE TRANSFORMER

For warranty returns, send thermostat, shipping prepaid to:

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.

Transformer

Uni-Line North America
Warranty Claims Department
515 S. Promenade
Corona, CA 91719

Five Year Limited Warranty
Maple Chase Company warrants to the original contractor installer or

The following is just a sample of the most common types of HVAC systems. Refer to your systems installation manual for wiring information.

Hot
120 VAC
24 VAC

HEATING
CONTROL

W
G

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..

HEAT ONLY
3-WIRE
SINGLE TRANSFORMER
Transformer
Hot

T
H
E
R
M
O
S
T
A
T

120 VAC

24 VAC

HEATING
CONTROL

FAN
CONTROL

W
G

T
H
E
R
M
O
S
T
A
T

Pilot
Generator

R
W
G

CAUTION: DO

250-750
MILLIVOLT SYSTEM

Gas valve

T
H
E
R
M
O
S
T
A
T

NOT USE THIS THERMOSTAT WITH MULTI-STAGE HEATING SYSTEMS.

Maple Chase Company
2820 Thatcher Road
Downers Grove, Illinois 60515
United States of America

A Siebe Group Company

110-735

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).

If problems with thermostat cannot be solved, call:
Technical Support: (800) 445-8299
Monday-Friday 7:30-5:30 CST
For after hours service, a 24-hour
Automated Help Line is available

Wiring Diagrams

HEAT ONLY
2-WIRE
SINGLE TRANSFORMER

For warranty returns, send thermostat, shipping prepaid to:

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.

Transformer

Uni-Line North America
Warranty Claims Department
515 S. Promenade
Corona, CA 91719

Five Year Limited Warranty
Maple Chase Company warrants to the original contractor installer or

The following is just a sample of the most common types of HVAC systems. Refer to your systems installation manual for wiring information.

Hot
120 VAC
24 VAC

HEATING
CONTROL

W
G

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..

HEAT ONLY
3-WIRE
SINGLE TRANSFORMER
Transformer
Hot

T
H
E
R
M
O
S
T
A
T

120 VAC

24 VAC

HEATING
CONTROL

FAN
CONTROL

W
G

T
H
E
R
M
O
S
T
A
T

Pilot
Generator

R
W
G

CAUTION: DO

250-750
MILLIVOLT SYSTEM

Gas valve

T
H
E
R
M
O
S
T
A
T

NOT USE THIS THERMOSTAT WITH MULTI-STAGE HEATING SYSTEMS.

Maple Chase Company
2820 Thatcher Road
Downers Grove, Illinois 60515
United States of America

A Siebe Group Company

110-735

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Robertshaw 9505 Users Manual 110 735B

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