®

I N T E G R A T E D C O M F O R T S O L U T I O N S

™

9620

DIGITAL

PROGRAMMABLE

THERMOSTAT

H

HEAT PUMP

7 Day Programmable

2 Heat / 2 Cool

User’s Manual

Quick Start

Installation and

Programming

110-732E

As an E

NERGY

S

TAR

® partner, Maple Chase has determined that this thermostat product meets the E

NERGY

S

TAR

® guidelines for energy efficiency.

W

A R R A N T Y

©2001 Maple Chase Company

!

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.

1

Features

• Four preprogrammed E

NERGY

S

TAR

® setpoints for each day of the week

• Quickset™ programming for quickly programming all days of the week simultaneously

• Energy Efficient Recovery (EER™)

• Residual cooling for added air conditioning efficiency

• Two AA ENERGIZER ® brand batteries retain program memory, even during power outages

• Low battery indicator

• Multi-colored LED indicators for system status

• Zone compatible as master thermostat

• Fahrenheit/Celsius display option

• Programmable from 45°F (7°C) to 90°F (32°C)

• Accuracy within ±1 degree

• Adjustable temperature differential: 1-3 degrees

• Maintains summer and winter programming

Step 1: Replacing Existing Thermostat

1. Turn off power to heating and cooling system.

2. Remove cover of old thermostat to expose wires. (Figure 1)

FIGURE 1

3. Disconnect wires one at a time from existing terminals. use enclosed labels to mark existing wires. Refer to cross references in

Table 1 if existing wiring does not directly match the labels.

• If you have any questions about cross referencing the old terminal to the new label, reference your equipment installation manual, a licensed contractor, or call Robertshaw Tech Support (800) 445-8299.

4. Remove existing thermostat base from wall.

2

TABLE 1

Old Terminal

R, V-VR or VR-R

Y, Y1 or M

O or R

B

G or F

Y2

W1 or W2 or W-U

L or X

New Label

R

Y1

G

Y2

O

B

W2

L

Description

24 VAC

Stage 1 Cooling/Heating Circuit

Reversing Valve (Cooling Mode)

Reversing Valve (Heating Mode)

Fan Contactor Circuit

2nd Stage Cooling Circuit

2nd Stage Heating Circuit

System Monitor LED

E

C, X or B

E

C

Emergency Heating Circuit

24 VAC Transformer Common Side

NOTE: T

HIS THERMOSTAT REQUIRES A

24V AC

COMMON WIRE FOR PROPER OPERATION

.

5. After labeling wires, remove wires from terminals.

6. Remove existing thermostat base from wall.

7. Refer to the following section for instructions on how to install thermostat.

Recycling Thermostat

If this thermostat is replacing a thermostat that contains mercury in a sealed tube, do not place your old thermostat in the garbage. Contact your local waste management authority for instructions regarding proper disposal of the thermostat. If you have any questions, call Robertshaw technical support at 1-800-445-8299.

Step 2: Installing Model 9620 Thermostat

NOTE: F

OR NEW INSTALLATIONS

,

MOUNT THERMOSTAT ON INSIDE WALL

, 4-5

FEET ABOVE THE FLOOR

. D

O NOT INSTALL

BEHIND A DOOR

,

IN A CORNER

,

NEAR AIR VENTS

,

IN DIRECT SUNLIGHT

,

OR NEAR ANY HEAT OR STEAM GENERATING FIX

-

TURES

. I

NSTALLATION AT THESE PLACES WILL AFFECT THERMOSTAT OPERATION

.

IMPORTANT: T

HIS THERMOSTAT IS COMPATIBLE WITH

100%

LOCKOUT SYSTEMS

. T

O RESET THE SYSTEM

,

TURN

THERMOSTAT TO

OFF

POSITION FOR AT LEAST

60

SECONDS

.

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

2. Place COOL-OFF-HEAT-EM in OFF position.

COOL-OFF-HEAT-EM

PROG

MAN

AUX CHECK EMER

SET PROG/MAN COOL-OFF-HEAT-EM AUTO - ON

AUTO - ON

3

3. Place AUTO-ON switch into AUTO position.

4. Remove the cover using a coin or screwdriver (Figure 2).

EM

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 (Figure 3). Set base aside.

MOUNTING HOLES

C L R

AM

PM PROG

MAN

MORN DAY EVE NITE EER

CHANGE SET PROG/MAN

E

G

O

B

COOL OFF HEAT EM FAN AUTO ON

WIRE OPENING

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 holes.

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

(Figure 3).

4

10. Secure base to wall with supplied screws.

11. Terminal screws are loosened. Insert wires into terminal strip

(Figure 4) matching the label to the corresponding terminal (see

Wiring Diagrams below). Tighten screws.

C

FIGURE 4

9620 WIRING SAMPLE #1

Typical heat pump with cool active reversing valve and auxiliary/emergency heat.

L R Y2 Y1 E G W2 O B

C

9620 WIRING SAMPLE #2

Typical heat pump with heat active reversing valve and auxiliary/emergency heat.

L R Y2 Y1 E G W2 O B

C

9620 WIRING SAMPLE #3

Typical heat pump with heat active reversing valve and auxiliary/emergency heat.

Does not have separate wire for emergency heat (jump W2 & E).

L R Y2 Y1 E G W2 O B

Jumper

C

9620 WIRING SAMPLE #4

Typical heat pump with cool active reversing valve, auxiliary/emergency heat and second stage of cooling. System fault indicator connected (L terminal).

L R Y2 Y1 E G W2 O B

5

TERMINAL LEGEND - 9620

TERM

C

L

R

Y2

Y1

E

EQUIPMENT TO CONNECT

24VAC common connection

System fault indicator connection

24VAC hot connection

Second stage cooling connection

First stage compressor connection

Emergency heat connection

REQ?

Yes

No

Yes

No

Yes

No*

TERMINAL FUNCTION

For input of 24VAC common side of transformer

For connection of system fault indicator (if present)

For input of 24VAC hot side of transformer

Energizes on a call for second stage cooling

Energizes on a call for first stage heating or cooling

Energizes on a call for heat in the EM mode only

G

W2

Indoor fan connection

Second stage heat connection

Yes

No*

Energizes with E, Y1, Y2 and

W2 terminals or with FAN option switched to the ON position

Energizes on a call for second stage of heat (auxiliary heat)

Yes** Energizes when in the in

COOL mode

O Cool active reversing valve connection

B Heat active reversing valve connection

Yes** Energizes when in the

HEAT or EM modes

* For systems using a backup heat source. If separate E terminal connection is not available, jumper E and W2.

** Most heat pump systems will have a cool active OR a heat active reversing valve. Use the appropriate terminal.

12. 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.

13. Replace cover on thermostat by snapping into place.

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

6

Step 3: Testing the 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: D

O NOT SWITCH SYSTEM TO COOL IF THE TEMPERATURE IS BELOW

50°F (10°C). T

HIS CAN DAMAGE

THE AIR CONDITIONING SYSTEM AND CAUSE PERSONAL INJURY

.

COOL-OFF-HEAT-EM

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: O

NCE THE THERMOSTAT TURNS THE SYSTEM OFF WHILE IN THE COOL OR HEAT MODE

,

A BUILT

-

IN DELAY KEEPS THE COM

-

PRESSOR FROM TURNING ON FOR ABOUT

BREAK

5

MINUTES

. T

HIS PROTECTS THE COMPRESSOR

. N

O ADDITIONAL TIME DELAY RELAY

(

DELAY ON

)

IS NECESSARY

. T

O OVERRIDE THE

5-

MINUTE DELAY FOR INSTALLATION

,

PRESS

RESET. T

HIS WILL ERASE THE DELAY AS WELL

AS ALL PROGRAMMING

.

COOL-OFF-HEAT-EM

3. Put the COOL-OFF-HEAT-EM switch into the OFF position. The air conditioning system should turn off. The fan may continue to run for a short period of time.

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

COOL-OFF-HEAT-EM

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 on the fan delay built into the furnace.

COOL-OFF-HEAT-EM 6. Put the COOL-OFF-HEAT-EM switch into the OFF position. The heating system should turn off. Once again, the fan may have a delay.

AUTO - ON

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

AUTO - ON

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

7

Step 4: Customizing Your Thermostat

◆ Set Time of Day, Day of Week,

Temperature Differential,

Residual Cooling

1. Press SET and PROG/MAN.

Release simultaneously.

SET PROG/MAN

PROG

MAN

AUX CHECK EMER

SET PROG/MAN COOL-OFF-HEAT-EM AUTO - ON

Press or

2. Press to change time of day.

Press

SET P

3. Press to change day of week.

Press

1=MO

2=TU

3=WE

4=TH

SET P 5=FR

6=SA to change 1st stage temperature differential.

7=SU

NOTE: T HE TEMPERATURE DIFFERENTIAL IS FACTORY PRESET AT 1°. T HIS MEANS THAT

WHENEVER THE ROOM TEMPERATURE CHANGES BY ONE FULL DEGREE FROM THE TEMPERA -

TURE SETTING , THE SYSTEM WILL TURN ON . I F THE SYSTEM TURNS ON TOO OFTEN ,

INCREASE THE TEMPERATURE DIFFERENTIAL .

4. Press

SET P

Press to change 2nd stage temperature differential.

NOTE: T HE SECOND STAGE TEMPERATURE DIFFERENTIAL IS FACTORY PRESET AT 2°.

5. Press Press

SET P to change residual cooling.

NOTE: T HE RESIDUAL COOL FEATURE WILL KEEP THE SYSTEM FAN ON FOR AN

ADDITIONAL 30, 60, OR 90 SECONDS AFTER THE COMPRESSOR CYCLES OFF IN COOL

MODE . T HE RESIDUAL COOL FEATURE CAN BE SET ONLY IN THE COOL MODE .

8

◆ Changing Fahrenheit (F) to Celsius (C)

Press and hold SET.

Press

SET P

Release both simultaneously.

◆ Energy Efficient Recovery (EER™)

The Energy Efficient Recovery (EER™) feature looks ahead up to 2 hours prior to the end of the setback (or set-up) period to begin monitoring performance and calculating when to turn on your system. It also determines whether the auxiliary heat or cool stages should be activated prior to setpoint time to meet your chosen setpoint temperature. The thermostat will indicate EER in the display when this program feature is active. The EER™ feature will lockout the auxiliary stages until 20 minutes prior to upcoming setpoint time to utilize the most energy efficient first stage. The auxiliary stages of heating and cooling will be available during this lock-out period to maintain the setpoint temperature should the system not be able to keep up with the heating or cooling demand.

Step 5: Setting the Program

This Robertshaw thermostat is preprogrammed with the following

E

NERGY

S

TAR

® settings for the greatest energy savings.

Setting Time Heat Setpoint

Temperature

Cool Setpoint

Temperature

MORN

DAY

EVE

NITE

6:00 a.m.

8:00 a.m.

5:00 p.m.

10:00 p.m.

70°F

62°F

70°F

62°F

78°F

85°F

78°F

82°F

These settings can be customized using the following QuickSet™ or daily programming guides.

9

◆ QuickSet™ Programming Mode

QuickSet™ will program all 7 days of the week with the same program.

PROG

MAN

AUX CHECK EMER

SET PROG/MAN COOL-OFF-HEAT-EM AUTO - ON

COOL-OFF-HEAT-EM

1. Place COOL-OFF-HEAT-EM in COOL or HEAT position.

SET P

2. Press and hold SET. Press the button.

Release simultaneously.

3. The MORN indicator should be blinking. Program the time of day and the temperature as outlined in the Setting Daily Program section.

◆ Setting Daily Programming

1. Place COOL-OFF-HEAT-EM in COOL position.

COOL-OFF-HEAT-EM

PROG

MAN

AUX CHECK EMER

SET PROG/MAN COOL-OFF-HEAT-EM AUTO - ON

SET PR

2. Press SET button. The display will show a number from 1 to 7. This number represents the day of the week to be programmed. If programming individual days, press the day of the week to program.

3. Press SET. Press or to change

MORN time.

4. Press SET.

PROG

MAN

AUX CHECK EMER

SET PROG/MAN COOL-OFF-HEAT-EM AUTO - ON

SET PR

5. Press or to change

MORN temperature.

6. Repeat steps 2-5 for DAY, EVE, and NITE.

7. Repeat steps 2-6 above to program any other day of the week.

8. Shift COOL-OFF-HEAT-EM to HEAT position.

9. Repeat steps 2-6 to program HEAT (winter) settings.

10

COOL-OFF-HEAT-EM

◆ Begin Programmed Operation

1. Place AUTO-ON into AUTO.

PROG

MAN

AUX CHECK EMER

SET PROG/MAN COOL-OFF-HEAT-EM AUTO - ON

AUTO - ON

COOL-OFF-HEAT-EM

SUMMER

2. Place COOL-OFF-HEAT-EM into COOL or HEAT, depending on the season.

3. Press PROG/MAN button until indicator is in PROG position.

COOL-OFF-HEAT-EM

WINTER

ET PROG/MAN C

PROG

MAN

AUX CHECK EMER

SET PROG/MAN COOL-OFF-HEAT-EM AUTO - ON

PROG

MAN

NOTE: O

NCE THE THERMOSTAT TURNS THE SYSTEM OFF WHILE IN THE COOL OR HEAT MODE

,

A BUILT

-

IN DELAY KEEPS THE COMPRESSOR FROM TURN

-

ING ON FOR ABOUT

5

MINUTES

. T

HIS PROTECTS THE COMPRESSOR

. N

O ADDITIONAL TIME DELAY RELAY

(

DELAY ON BREAK

)

IS NECESSARY

. T

O OVERRIDE

THE

5-

MINUTE DELAY FOR INSTALLATION

,

PRESS

RESET. T

HIS WILL ERASE THE DELAY AS WELL AS ALL PROGRAMMING

.

◆ Temporary Program Override

To temporarily increase or decrease temperature:

Press or .

PROG

MAN

AUX CHECK EMER

SET PROG/MAN COOL-OFF-HEAT-EM AUTO - ON

The thermostat will automatically return to the program at the next scheduled setting change or after four hours.

11

◆ Manual Operation

1. Press PROG/MAN until indicator is in MAN position.

PROG

MAN

AUX CHECK EMER

SET PROG/MAN COOL-OFF-HEAT-EM AUTO - ON

T PROG/MAN

PROG

MAN

2. Press or to temperature settings.

◆ Reset

To reset the thermostat to factory preprogrammed conditions, press the RESET button located beneath the lower left corner of the display.

RESET BUTTON

C L R

AM

PM

PROG

MAN

MORN DAY EVE NITE EER

CHANGE SET PROG/MAN

E

G

O

B

COOL OFF HEAT EM FAN AUTO ON

12

◆ 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 8).

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

Thermostat turns on and off too frequently.

SYMPTOM REMEDY

Thermostat does not turn on system.

Check wiring.

(See Installing Model 9620

Thermostat)

Check fuse. Replace with 3 amp fuse if fuse has opened. Five minute compressor short cycle protection maybe in effect. Press

RESET to override. NOTE: This will erase programming.

Increase temperature differential.

(See Customizing Your Thermostat)

Replace batteries.

Display is blank, flashing, or constant LO BAT.

Time shown on display is not the current time of day.

Thermostat does not follow program.

Thermostat does not advance day of week.

Change time of day setting.

(See Customizing Your Thermostat)

Thermostat in MANUAL mode.

(See Customizing Your Thermostat)

Thermostat may not have been programmed in HEAT or COOL position. Verify program.

Check AM/PM indicators at time of day and programmed time changes. (See Customizing Your

Thermostat)

Verify program and day of week is correct. (See Customizing Your

Thermostat)

To view or change day of week use method on page 5.

If problems with thermostats cannot be resolved, call:

Technical Support: (800) 445-8299

Monday-Friday 7:30-5:30 CST

13

Five-Year Limited Warranty

Maple Chase Company warrants to the original contractor installer, or to the original consumer user, each new Robertshaw 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 does not cover batteries, damage caused by batteries, damage resulting from improper installation, alteration, misuse or abuse of the thermostat occurring after the date of purchase.

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.

For warranty returns, send thermostat, shipping prepaid to:

Uni-Line North America

Warranty Claims Department

515 S. Promenade

Corona, CA 91719

Maple Chase Company

2820 Thatcher Road

Downers Grove, Illinois 60515

United States of America

14