Robertshaw 9505 User Manual

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

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SYSTEM: ON-OFF AUTO - ON

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SYSTEM: ON-OFF

AUTO - ON

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MOUNTING HOLES

AUTO - ON

1 Heat

W

A

R

R

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INTEGRATED COMFORT SOLUTIONS

™

DIGITAL
NON-PROGRAMMABLE
THERMOSTAT

9505

User’s Manual

Quick Start
Installation and
Programming

110-735

®

ELECTRIC

E

GASGMILLIVOLT

M

110-735B

Features

• Milli-volt system compatible

• 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: .5 – 1.5 degree.

• 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 R Heat Transformer,

hot side
H, W or 4 W Heating control
F or G G Fan control relay

*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. IFIT

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.

SYSTEM: ON-OFF AUTO - ON

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SYSTEM: ON-OFF

AUTO - ON

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Figure 1

MOUNTING HOLES

AUTO - ON

Installing Model 9505 Thermostat

SYSTEM: ON-OFF AUTO - ON

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SYSTEM: ON-OFF

AUTO - ON

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MOUNTING HOLES

AUTO - ON

NOTE: FOR NEW INSTALLATIONS, MOUNT THERMOSTAT ON INSIDE WALL, 4-5 FEET ABOVE THE FLOOR.
DONOT INSTALL BEHIND A DOOR, IN A CORNER, NEAR AIR VENTS, IN DIRECT SUNLIGHT, OR NEAR ANY

HEAT OR STEAM GENERATING FIXTURES
OPERATION

.

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

2. Place SYSTEM ON-OFF
In OFF position.

3. Place AUTO-ON switch
Into AUTO position.

4. Remove the cover using a coin
or screwdriver.

. INSTALLATION AT THESE PLACES WILL AFFECT THERMOSTAT

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

6. Mark placement of mounting holes. See Fig. 3.

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

Figure 2

wires will feed through opening on base of thermostat.

Set base aside.

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.

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 4

Figure 4

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

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AUTO - ON

ELEC/
GAS SWITCH

°F/°C
Switch

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:

15. Replace cover onto thermostat by snapping into place.

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

To Test Thermostat

WARNING: DO NOT SHORT (JUMPER) ACROSS TERMINALS OF GAS VALVE OR SYS-

TEM CONTROL TO TEST OPERATION. THIS WILL DAMAGE THE THERMOSTAT AND
VOID YOUR WARRANTY.

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

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.

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

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

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

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

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AUTO - ON

SYSTEM: ON-OFF

SYSTEM: ON-OFF

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 (.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:

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.

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Differential

Setting Degrees

1.5°
2 1.0°
3 1.5°

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SYSTEM: ON-OFF AUTO - ON

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SYSTEM: ON-OFF 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 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.

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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 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: [phone]

Monday-Friday 7:30-5:30 CST

For after hours service, a 24-hour

Automated Help Line is available

For warranty returns, send thermostat, shipping prepaid to:

Uni-Line North America

Warranty Claims Department

515 S. Promenade

Corona, CA 91719

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.

HEAT ONLY

2-WIRE

SINGLE TRANSFORMER

250-750

MILLIVOLT SYSTEM

HEAT ONLY

3-WIRE

SINGLE TRANSFORMER

CAUTION: DO NOT USE THIS THERMOSTAT WITH MULTI-STAGE HEATING SYSTEMS.

Transformer

Hot

120 VAC

24 VAC

HEATING

CONTROL

R

W
G

T
H

120 VAC

E

R
M
O
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Transformer

Hot

24 VAC

HEATING

CONTROL

CONTROL

R

W

FAN

G

T
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E

R
M
O
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A

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Pilot

Generator

Gas valve

TT PP

PP

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Five Year Limited Warranty

Maple Chase Company warrants to the original contractor installer or

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.

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.

©1999 Maple Chase Company 110-735

Maple Chase Company

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

A Siebe Group Company