Operation, Changing temperature differential, Troubleshooting – Robertshaw 9500 User Manual

Page 10: Wiring diagrams, Five year limited warranty, Changing fahrenheit (f) to celsius (c), Maple chase company

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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.

TROUBLESHOOTING

Symptom Remedy

7

8

9

10

11

12

Hot

Heating

Control

Fan

Control

Cooling
Control

(COOLING)

Transformer

(HEATING)

Transformer

Transformer

T

H
E
R

M
O

S
T
A
T

T

H
E
R

M
O

S
T
A
T

RH

RC

W

Y

G

T

H
E
R

M
O

S
T
A
T

RH

RC

W

Y

G

24 VAC

120 VAC

Hot

Heating

Control

Fan

Control

Transformer

24 VAC

120 VAC

T

H
E
R

M
O

S
T
A
T

RH

RC

W

Y

G

RH

RC

W

Y

G

Hot

Heating

Control

Heating

Control

Transformer

24 VAC

24 VAC

24 VAC

120 VAC

Hot

120 VAC

Hot

120 VAC

HEAT/COOL

4-WIRE

SINGLE TRANSFORMER

HEAT ONLY

2-WIRE

SINGLE TRANSFORMER

HEAT ONLY

3-WIRE

SINGLE TRANSFORMER

Factory-Installed

jumper

Factory- Installed

jumper

T

H
E
R

M
O

S
T
A
T

RH

RC

W

Y

G

Hot

Cooling
Control

Fan

Control

Transformer

24 VAC

120 VAC

COOL ONLY

3-WIRE

SINGLE TRANSFORMER

HEAT/COOL

5-WIRE

TWO TRANSFORMER

NOTE: Both transformers
must be in phase.

Cooling
Control

Fan

Control

NOTE: Cut center of
factory installed jumper
and bend back

NOTE: Remove factory
installed jumper

Wiring Diagrams

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

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..

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 ther-
mostat 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 limit-
ed to the duration of this warranty.

Some states do not allow the exclusion or limitation of incidental or con-
sequential 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.

©2000 Maple Chase Company

110-734B

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

>

>

COOL OFF HEAT

AUTO - ON

>

>

>

>

COOL OFF HEAT

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.

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 temper-
ature scale. To return the thermostat to its original setting, repeat steps 1
and 2 above.

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

For warranty returns, send thermostat, shipping prepaid to:

Uni-Line North America

Warranty Claims Department

515 S. Promenade

Corona, CA 91719

Differential

Setting

Degrees

1

.5°

2

1.0°

3

1.5°

Hot

Fan

Relay

Transformer

24 VAC

120 VAC

HEAT PUMP WITH

COOL ACTIVE

REVERSING VALVE

T

H
E
R

M
O

S
T
A
T

RH

RC

W

G

W

G

Y

O

B

Pre-Installed jumper

Compressor

Contactor

Reversing

Valve

Hot

Fan

Relay

Transformer

24 VAC

120 VAC

HEAT PUMP WITH

HEAT ACTIVE

REVERSING VALVE

T

H
E
R

M
O

S
T
A
T

RH

RC

Y

O

B

Pre-Installed jumper

Compressor

Contactor

Reversing

Valve

NOTE: Installer must place jumper
between “W” and “Y” terminals.

NOTE: Installer must place jumper
between “W” and “Y” terminals.

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