Friedrich PDE15R5SG, PDH15R5SG, PDH07R3SG, PDE09R3SG, PDE07R3SG User Manual

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Mode of Operation

Wiring Diagrams

Conﬁguration Mode Settings

RT6P

Electronic Thermostat

• 7 Day Programmable

• Auto Changeover

• 1-Stage Heat/1-Stage Cool Systems

• Conﬁgurable to: 2-stage heat pump

• Large Display With Backlight

• Selectable Fahrenheit or Celsius

Installation, Operation & Application Guide

Parts Diagram

Up button

Down button

YO/BGHGLCR W

RESET

CONFIG

Icon Descriptions

Speciﬁcations

Electrical rating:

• 24 VAC (18-30 VAC)

• 1 amp maximum per terminal

• 3 amp maximum total load

Temperature control range: 45°F to 90°F (7°C to 32°C) Accuracy: ± 1°F (± 0.5°C)

System conﬁgurations: 2-stage heat, 1-stage cool, heat pump, electric

Timing: Anti-short Cycle: 4 minutes (bypass anti-short cycle delay by returning to OFF mode

for 5 seconds)

Backlight Operation: 10 seconds

Terminations: R, C, GL, GH, O/B, Y, W

Important Safety Information

WARNING!

• This thermostat is for 24 VAC applications only; do not use on voltages over 30 VAC

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

• Do not use air conditioning when the outdoor temperature is below 50 degrees; this can damage

your A/C system and cause personal injuries

• Use this thermostat only as described in this manual

Package includes: RT6P thermostat on base, thermostat cover, wiring labels, screws and wall

Tools required for installation: Drill with 3/16” bit, hammer, screwdriver

Package Contents/Tools Required

anchors, Installation, Operation and Application Guide

RT6P is a 1-stage cool/2-stage heat thermostat. It functions with air conditioning, heat pumps, or electric heat systems. It is programmable for 7 days a week and has auto changeover capability.

The thermostat activates the heating appliance when the room temperature is below the set heat temperature (by the differential temperature). The RT6P will stop outputting when the call for heat has been satisﬁed. With heat pumps, the thermostat will not let the compressor come on for 4 minutes after it turns off to protect your compressor.

When the room temperature is greater than the set cool temperature (by the differential temperature), the cooling device is activated. The RT6P will stop outputting when the call for cooling is satisﬁed. The thermostat will not let the compressor come on for 4 minutes after it turns off to protect your compressor.

The RT6P has four possible operating modes: OFF, Heat, Cool and Heat/Cool mode. In off mode, the thermostat will not turn on heating or cooling devices. In heat mode, the thermostat controls the heating system. In the cool mode, the thermostat controls the cooling system. In the Heat/Cool mode, the thermostat controls the heating and cooling system

The manual fan can be turned on in all operating modes using the fan button.

In program mode, the thermostat will automatically be controlled by the set program. Program mode can function with heat mode, cool mode, or heat & cool mode. The clock display alternates with the set temperature display for heat & cool mode.

The program schedule can be overridden by changing the set temperature (up or down button). This puts the RT6P thermostat into a 2-hour temporary hold. After 2 hours, it will automatically return to the program schedule.

Button Functions

UP – Used to increase the set temperatures and to adjust

conﬁguration settings

DOWN – Used to decrease the set temperatures and to

adjust conﬁguration settings

SYS (left) – Used to change from OFF, HEAT, COOL

and HEAT/COOL modes

FAN (right) – Used to turn on and off the indoor fan

SYS (left) and FAN (right) – Used to enter and exit program operation

SYStem (left)

Up button

Down button

FAN (right)

To Remove Existing Thermostat

ELECTRICAL SHOCK HAZARD

the fuse or switching the appropriate circuit breaker to the OFF position before removing the existing thermostat.

1. Turn off power to the heating and cooling system by removing the fuse or switching the appropriate circuit breaker off.

2. Remove cover of old thermostat. This should expose the wires.

3. Label the existing wires with the enclosed wire labels before removing wires.

4. After labeling wires, remove wires from wire terminals.

5. Remove existing thermostat base from wall.

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

– Turn off power at the main service panel by removing

To Install Thermostat

ELECTRICAL SHOCK HAZARD

the fuse or switching the appropriate circuit breaker to the OFF position before removing the existing thermostat.

IMPORTANT:

Note: Mount the thermostat about ﬁve feet above the ﬂoor. Do not mount the thermostat on an

outside wall, in direct sunlight, behind a door, or in an area affected by a vent or duct.

1. Turn off power to the heating and cooling system by removing the fuse or switching the

appropriate circuit breaker off.

2. To remove cover, pull gently at the seam at the top.

3. Put thermostat base against the wall where you plan to mount it (Be sure wires will feed through

the wire opening in the base of the thermostat).

4. Mark the placement of the mounting holes.

5. Set thermostat base and cover away from working area.

6. Using a 3/16” drill bit, drill holes in the places you have marked for mounting.

7. Use a hammer to tap supplied anchors in mounting holes.

8. Align thermostat base with mounting holes and feed the control wires through slit in thermal

intrusion barrier and into wire opening.

9. Use supplied screws to mount thermostat base to wall.

10. Insert stripped, labeled wires in matching wire terminals.

CAUTION!: Be sure exposed portion of wires does not touch other wires.

11. Gently tug wire to be sure of proper connection. Double check that each wire is connected to the

proper terminal.

12. Turn on power to the system at the main service panel.

13. Conﬁgure thermostat to match the type of system you have.

14. Replace cover on thermostat by snapping it in place.

15. Test thermostat operation as described in “Testing the Thermostat”.

Thermostat installation must conform to local and national building and electrical codes & ordinances.

– Turn off power at the main service panel by removing

Heat/Cool Systems Heat pump with electric backup

Terminal Designator Descriptions

R – 24 VAC hot

C – 24 VAC common

O/B – Conﬁgurable

O – Cool active reversing valve

B – Heat active reversing valve

Y – 1st stage cool, 1st stage heat for heat pumps

W – 1st stage heat for non-heat pump systems, auxiliary heat for HP systems

GL – Low fan

GH – High fan

RT6P Output Chart

Conﬁguration 1ST Cool 1ST Heat 2ND Heat

ELC Y, G W, G, B N/A

HP ‘O’ conﬁg Y, G, O Y, G Y, W, G

HP ‘B’ conﬁg Y, G Y, G, B Y, G, B, W

The RT6P thermostat is conﬁgurable for different systems. The conﬁguration directly affects the outputs.

Use the output chart to correctly conﬁgure and wire the thermostat to your system.

Conﬁguration Mode

The conﬁguration mode is used to set the RT6P to match your heating/cooling system. The RT6P functions with heat pump, air conditioning, or electric heat systems.

Note:

Thermostat comes conﬁgured for 1-stage heat / 1-stage cooling for use with all heat/cool and single-stage heat pump models. For Friedrich PTHP models follow the instructions below to conﬁgure the thermostat for two-stage heat pump operation using the ‘O’ terminal.

To conﬁgure the RT6P, perform the following steps:

1. Verify the RT6P is in the OFF mode.

Press the SYS (left) button until off mode displays.

2. Remove the cover of the thermostat by gently pulling near one of the corners at the top of the thermostat.

3. Press the CONFIG button for 1 second while the RT6P is in OFF mode.

Press the up or down button to change settings within each screen.

Press the button to advance to the next screen.

Pressing the

To exit conﬁguration mode, press the CONFIG switch for 1 second.

left

button will return you to the previous screen.

CONFIG

Left

button

OFF

Right button

Up button

Down button

The setup screens for Conﬁguration Mode are as follows:

1. System – Set for heat pump, non-heat pump, reversing valve operation

System Setting Reversing Valve Setting

Heat Pump

Heat/Cool and Single-

Stage Heat Pump Only

Press the up or down button to select.

Press the right button to advance to the next screen.

2. Temperature Scale (F or C)

Choose Fahrenheit or Celsius.

Press the up or down button to select.

Press the

3. 1st Stage Temperature Differential (1°F to 5°F) (0.5°C to 2.5°C) Set the number of degrees between your “setpoint” temperature and your “turn on” temperature.

Press the up or down button to set differential value.

Press the right button to advance to the next screen.

4. 2nd Stage Temperature Differential (1°F to 5°F) (0.5°C to 2.5°C)

(For HP 0 and HP B only)

Set the number of degrees between when stage 1 turns on and

when stage 2 turns on.

Press the up or down button to set differential value.

Press the right button to advance to the next screen.

5. Staged Off Outputs (For HP 0 and HP B only)

Select whether the outputs for heating and cooling are staged off independently or are satisﬁed simultaneously.

1 = outputs staged off independently

0 = outputs off simultaneously

Press the up or down button to set.

Press the right button to advance to the next screen.

6. Deadband (1°F to 9°F) (1°C to 5°C)

Select the minimum difference between heat set point and cool

set point when in auto changeover mode.

Press the up or down button to set.

Press the right button to advance to the next screen.

7. Auxiliary Delay ON – (0-30 minutes) (For HP 0 and HP B only)

Set the delay time in minutes for auxiliary heat to be locked out

after a call for second stage. This extra savings feature is used to temporarily lock out auxiliary heat devices, allowing just heat pump to try to satisfy heat call.

Press the up or down button to set.

Press the right button to advance to the next screen.

8. Maximum Heat Setpoint (45°F to 90°F) (7°C to 32°C)

Adjust to control the maximum heat set temperature allowed.

Press the up or down button to select.

Press the right button to advance to the next screen.

9. Minimum Cool Setpoint (45°F to 90°F) (7°C to 32°C)

Adjust to control the minimum cool set temperature allowed.

Press the up or down button to select.

Press the right button to advance to the next screen.

10. Room Temperature Offset (+9°F to -9°F) (+4.5°C to -4.5°C)

Adjust to calibrate displayed room temperature to match actual

Note: When not set to 0, will display.

Press the up or down button to select.

Press the right button to advance to the next screen.

right

button to advance to the next screen.

room temperature.

HP ‘O’ O - Energized in Cooling

HP ‘B’ B - Energized in Heating

ELC N/A

Setting the Time and Day of the Week

The time and day of the week must be set for your program schedule to operate correctly.

1. Press the SYS (left) button until you are in the OFF mode.

2. Press and hold the PROG button (SYS (left) and FAN (right) buttons pressed simultaneously) in for 6 seconds.

3. Time displays (hour ﬂashing).

Press the up or down button to adjust the hour.

4. Press the FAN (right) button once to select minutes (minutes ﬂashing).

Press the up or down button to adjust the minutes.

5. Press the FAN (right) button once to select day of the week

(TODAY ﬂashing).

Press the up or down button to select current day of the week.

Note: At any time, press the SYS (left) button to return to the previous

screen or press the FAN (right) button to advance to the next screen.

Press the PROG button in for 2 seconds to lock values into memory and return to the OFF mode or press the FAN (right) button once to enter programming.

Programming

Program Overview

This programmable thermostat has four periods (MORN, DAY, EVE, NITE) that are customizable for each day of the week. Each period will have a start time, heat temperature, cool temperature and programmable fan option. The thermostat monitors the day and time, while maintaining the speciﬁc conditions you have chosen for each period in your program.

Setting the program schedule:

1. Press the SYS (left) button until you are in OFF mode.

2. Press and hold the PROG button (SYS and FAN buttons pressed simultaneously) for 6 seconds.

3. Press the FAN (right) button 3 times.

4. SUN thru SAT are blinking.

From this screen you have 2 options:

1. Press the FAN (right) button to begin programming all 7 days at one time, or

2. Press the

The screens are listed below.

button to see the other programming options.

Note: The days of the week shown on the display will be programmed simultaneously.

Screen 1 SUN MON TUE WED THU FRI SAT

Screen 2 MON TUE WED THU FRI

Screen 3 MON

Screen 4 TUE

Screen 5 WED

Screen 6 THU

Screen 7 FRI

Screen 8 SUN SAT

Screen 9 SAT

Screen 10 SUN

Programming (continued)

From any of the screens above, you can press the FAN (right) button to begin entering your program schedule. The days shown on the display will all be programmed simultaneously.

Once the FAN (right) button is pressed, MORN blinks.

Use the up or down button to select a different period (MORN, DAY, EVE, NITE).

Press FAN (right) button to advance to the next screen. Transition time hour blinks.

Use the up or down button to select a different hour.

Press FAN (right) button to advance to the next screen. Transition time minutes blink.

Use the up or down button to select different minutes.

Press FAN (right) button to advance to the next screen. Heat set temperature displays.

Use the up or down button to adjust the heat set temperature.

Press FAN (right) button to advance to the next screen. Cool set temperature displays.

Use the up or down button to adjust the cool set temperature.

Press FAN (right) button to advance to the next screen. Programmable fan screen displays.

Use the up or down button to select:

Choose: Off – Programmable fan disabled >OR< On – Indoor fan on continuously

Note: Programmable fan operates in Program mode only.

Repeat above steps to program the four periods per day.

When the program schedule is complete, press and hold the PROG button (SYS and FAN buttons pressed simultaneously) in for 2 seconds to return to the OFF mode.

Factory Preprogramming

The thermostat comes pre programmed with the following schedule:

MONDAY

thru

SUNDAY

MORN 6:00 AM DAY 8:00 AM EVE 6:00 PM NITE 10:00 PM

HEAT

COOL

FAN

70°F

78°F

Off

HEAT

COOL

FAN

62°F

85°F

Off

HEAT

COOL

FAN

70°F

78°F

Off

HEAT

COOL

FAN

62°F

82°F

Off

Personal Program Schedule

Use the following personal program schedule to record your settings:

MONDAY

TUESDAY

WEDNESDAY

THURSDAY

FRIDAY

MORN DAY EVE NITE

HEAT HEAT HEAT HEAT

COOL COOL COOL COOL

FAN FAN FAN FAN

MORN DAY EVE NITE

HEAT HEAT HEAT HEAT

COOL COOL COOL COOL

FAN FAN FAN FAN

MORN DAY EVE NITE

HEAT HEAT HEAT HEAT

COOL COOL COOL COOL

FAN FAN FAN FAN

MORN DAY EVE NITE

HEAT HEAT HEAT HEAT

COOL COOL COOL COOL

FAN FAN FAN FAN

MORN DAY EVE NITE

HEAT HEAT HEAT HEAT

COOL COOL COOL COOL

FAN FAN FAN FAN

Operating Modes

There are four possible operating modes for the RT6P. Off, Heat, Cool and Heat/Cool modes are accessed by pressing the SYS (left) button. The RT6P also lets you operate in any mode as a programmable thermostat.

OFF Mode

• In this mode, the thermostat will not turn on the heating or cooling devices

Note: The indoor fan can be turned on manually in every operating

mode by pressing the FAN (right) button. The word FAN shows on the display and the fan icon appears when the fan operates.

Heat Mode

• In this mode, the thermostat controls the heating system. When the heat outputs, the ﬂame icon appears on the display.

Note: For heat pumps, there is a four minute delay for your

compressor to restart after it has turned off. To bypass the compressor time delay, go to OFF mode for 5 seconds.

Cool Mode

• In this mode, the thermostat controls the cooling system. When the cooling outputs, the snowﬂake icon appears on the display.

Note: There is a four minute delay for your compressor to restart

after it has turned off. To bypass the compressor time delay, go to OFF mode for 5 seconds.

Cool and Heat Mode (Auto Changeover)

• In this mode, the thermostat controls the cooling and heating systems, automatically changing over from one to the other as needed.

• The timing display alternates with the set temperature every 10 seconds in the cool and heat mode.

Program Mode

• In this mode, the program function is on (PROG displays), and the thermostat will automatically be controlled by the set program schedule. Program mode can function with heat mode, cool mode, or heat & cool mode. The program schedule can be overridden by changing the set temperature (up or down button). After 2 hours, the program schedule will automatically be resumed. To manually return to the program schedule, press the PROG button twice.

PROG

Set Point Adjustment

Heat Set Point

• Use the SYS button to select Heat Mode. Press the up or down button to view the current heat set point larger on the display. When the large set point is displayed, the HEAT icon will blink. The up or down buttons can be used to adjust the set point. After 5 seconds of inactivity the screen will display the room temperature and the HEAT icon will not blink.

Cool Set Point

• Use the SYS button to select Cool Mode. Press the up or down button to view the current cool set point larger on the display. When the large set point is displayed, the COOL icon will blink. The up or down buttons can be used to adjust the set point. After 5 seconds of inactivity the screen will display the room temperature and the COOL icon will not blink.

Heat & Cool Set Points

• Use the SYS button to select Heat/Cool Mode. Press the up or down button to adjust the current set points. When the set points are displayed for adjustment, the ROOM temperature leaves the screen. The up or down buttons can be used to adjust the set points. After 5 seconds of inactivity, the screen will display the Heat and Cool set points and the room temperature.

HEAT icon

will blink.

COOL icon

will blink.

Testing the Thermostat

Once the thermostat is conﬁgured, it should be thoroughly tested.

 CAUTION!

Do not energize the air conditioning system when the outdoor temperature is below 50 degrees. It can result in equipment damage or personal injury.

Heat Test

1. Press SYS (left) button until heat mode is displayed.

2. Adjust the set temperature so it is 5 degrees above the room temperature.

3. Heat should come on within a few seconds.

4. Adjust the set temperature 2 degrees below the room temperature and the heat should turn off. There may be a fan delay on your system.

Note:

For heat pumps, there is a four-minute delay to protect your compressor after it turns off. To bypass the compressor time delay, go to OFF mode for 5 seconds.

Cool Test

1. Press SYS (left) button until cool mode is displayed.

2. Adjust set temperature so it is 5 degrees below room temperature.

3. A/C should come on within a few seconds.

4. Adjust the set temperature 2 degrees above the room temperature and

the A/C should turn off. There may be a fan delay on your system.

Note:

There is a four-minute time delay to protect the compressor after it turns off. To bypass the compressor time delay, go to OFF mode for 5 seconds.

Fan Test

1. Press FAN (right) button. Fan displays. Indoor fan turns ON.

2. Press FAN (right) button. Indoor fan turns OFF.

Troubleshooting

Symptom Remedy

No display Check for 24 VAC at thermostat; display is blank when 24

VAC is not present.

All thermostat buttons are inoperative

No response with ﬁrst button press

Thermostat turns on and off too frequently

Fan runs continuously Press FAN (right) button to turn fan off

Room temperature is not correct

Heat or Cool not coming on Verify wiring is correct, gently pull on each wire to verify

HEAT blinking In heat set point screen, this is normal operation

COOL blinking In cool set point screen, this is normal operation

Not following program schedule Verify time is correct, check am/pm, verify it is in program

“PROG” on display Press both SYS (left) and Fan (right) to enter or exit the

Problem not listed above Press Reset button once*

* Reset Button Function:

Verify 24 VAC is present; unit locks out when 24 VAC is not present

First button press activates backlight only

Adjust temperature differential (see Conﬁguration Mode Settings 3 & 4)

Calibrate thermostat (see Conﬁguration Mode Setting 10)

there is a good connection at terminal block

mode (PROG displays)

program mode

Display is refreshed, conﬁguration settings are unchanged.

SATURDAY

SUNDAY

MORN DAY EVE NITE

HEAT HEAT HEAT HEAT

COOL COOL COOL COOL

FAN FAN FAN FAN

MORN DAY EVE NITE

HEAT HEAT HEAT HEAT

COOL COOL COOL COOL

FAN FAN FAN FAN

Friedrich Air Conditioning Co.

10001 Reunion Place, Suite 500, San Antonio, TX 78216 P (210) 546-0500

http://www.friedrich.com

LIAF237-1