Friedrich RT7P - Programmable Thermostat Installation And Operation Manual

Introduction

The Friedrich RT7P is a programmable electronic thermostat, which can be used with the following heating/cooling applications:

• Single Stage Heat - Cool PTAC Units
• Singe Stage Heat Pump PTAC Units with or without Electric Heat

Parts Diagram

Included in Package

• Thermostat
• J-Box mounting plate/ decorative trim plate
• J-box mounting screws
• Dry wall anchors and mounting screws
• Wiring labels

Installer Button Codes

Specifications

• Input Voltage: 19 to 30 VAC
• Output Rating: Max. 1.5A per terminal (3A total)
• Temperature Control: 45°F to 90°F (7°C to 32°C)
• Temperature Accuracy: ± 1°F (± 0.5°C)

Safety Information

• This thermostat is for LOW voltage applications only.
• Turn OFF electricity to all heating and cooling components.
• All wiring must conform to applicable local and national building and electrical codes and ordinances.

Installing the Thermostat

• If painting or construction is still ongoing, cover the thermostat completely or wait until work is complete before mounting thermostat.
• Mount the thermostat on an inside wall about five feet above the floor in an area that has good circulation but is not directly affected by a vent or duct.
• Ensure power is switched OFF at the PTAC unit

Mounting directly on wall with trim plate

• Use a flat head screw driver to separate the front and back housing of the thermostat
  
• If new mounting holes are needed, mark the placement of the new mounting holes through the thermostat base. Using a 3/16" drill bit, drill the holes you have marked and insert the supplied wall anchors.
  
• Feed the wires through the hole in the back housing of the thermostat and then screw the back housing to the wall
  
• Feed the wires through the back housing of the thermostat and then snap the back housing to the trim plate
• Your thermostat base should now be securely fixed to the wall
  

• Using the WIRING DIAGRAMS section, wire each terminal on the thermostat base. Ensure that the bare end is fully seated into the connector, then tighten securely. Pull gently on wires to ensure they are secure.
• Important: For Heat Pump systems additional configuration steps are necessary. View the WIRING DIAGRAMS: Heat Pump section for details.
• If using battery power, insert 2xAA brand name alkaline batteries now. If thermostat is wired with a c-wire, then AA batteries are not required for normal operation. If programming mode is used, AA batteries can provide real time clock back-up during power outages. Important: Alkaline batteries must be replaced once every 2 years regardless battery level. Failure to replace batteries can lead to battery acid leakage and product failure.
• Return the thermostat front cabinet to its base by hooking the top first and then gently swinging the bottom of the thermostat into place.
• Restore power back to heating and cooling components and thermostat.
• See INSTALLER SETTINGS MENU section, to adjust the required settings needed for each system type.
  

WIRING DIAGRAM: Heat Pump

Note 1: Make the following Installer Settings for Heat Pump units

Note 2: When configured for Heat Pump operation, the "Y" terminal will be called for during both cooling and first-stage heating operation. Do not connect any wires to the "W1" terminal.

Note 3: The "W2" terminal is used to call for Electric/ Auxiliary heat. If your Heat Pump PTAC does not have Electric heat, then the "W2" terminal should not be used and Installer Settings menu 10 (Aux. Stage Offset) should be set to "OFF".

Note 4: For PTAC units with only one fan speed (single "G" fan wire), use the "GL" terminal for wiring and Installer Settings menu 12 (High Fan) must be set to "OFF".

WIRING DIAGRAM: Heat - Cool

Note 1: If connecting to a Cool only PTAC unit, the W1 and W2 wire terminals will not be used and Installer Settings menu 03 (Available Modes) should be set to "04: Cool Only"

Note 2: For PTAC units with only one fan speed (single "G" fan wire), use the "GL" terminal for wiring and Installer Settings menu Item 12 (High Fan) must be set to "OFF".

INSTALLER SETTINGS

HOW TO ENTER

• Set thermostat to OFF mode
• Hold UP + FAN for 5 seconds

HOW TO NAVIGATE

• Press UP or DOWN to change setting value
• Press MODE to save setting value and proceed to next setting option
• Press FAN to return to previous setting option

HOW TO EXIT

• Press MODE until last setting page (99) has been saved or leave thermostat with no button press for 60 seconds
• Note: You must press MODE to save each setting value

NORMAL OPERATION

CHANGING MODE

• Press MODE button to initiate mode selection menu
• Press MODE button until desired system mode is blinking. After 2 seconds of no button press desired mode is selected

CHANGING SET TEMPERATURE

• Ensure thermostat is in correct system mode (Heat, Cool or Auto)
• Press UP or DOWN button. New set temperature will be displayed in large digits. After 2 seconds of no button press new set temperature is selected
• If Programming mode is OFF, then new set temperature will be held indefinitely. If programming mode is ON (see below), then new set temperature will be held until next scheduled set-point change

CHANGING FAN SPEED

• Press FAN button to initiate fan speed selection menu
• Press FAN until desired fan mode is selected. After 2 seconds of no button press desired fan mode is selected
  • AUTO: fan operates as needed during a call for heating or cooling activation only.
  • LOW: fan operates continuously in low speed. Heat/Cool will turn on/off in background as needed.
  • HIGH: fan operates continuously in high speed. Heat/Cool will turn on/off in background as needed.

SETTING A KEYPAD / FRONT PANEL LOCKOUT

• While in any normal operating mode except OFF, a keypad lockout can be introduced which will prevent any mode change, fan change or temperature adjustment from being made by the user. Even when locked, any button press will illuminate the display backlight.
• To activate (and deactivate) the keypad lockout, set thermostat to heat, cool or auto mode then hold FAN + UP buttons for 5 seconds. When the keypad is locked, a padlock will appear in the lower left corner of the display.

SET CLOCK AND TEMPERATURE PROGRAM SCHEDULE

• NOTE: After 60 seconds with no button presses thermostat will exit the settings menu
• Set thermostat to OFF mode and hold MODE + UP buttons for 5 seconds. From this point you have the following options • Set thermostat real-time clock
• Set a heat schedule
• Set a cool schedule
• Use UP or DOWN buttons until desired section is blinking. Press MODE to enter selection.
• To exit press FAN or select "Exit" and press MODE

ADJUSTING THE REAL-TIME CLOCK

• Once the real-time clock menu has been selected use the UP or DOWN buttons to set each variable. MODE will save value and proceed to next variable. FAN will return to prior variable.
• By default, the thermostat will automatically adjust the clock for Daylight Savings. This can be disabled by changing the Auto Daylight Savings (setting 16) option in the installer menu

ADJUSTING THE HEAT OR COOL TEMPERATURE PROGRAM

• NOTE: Each period ends at the start time of the next upcoming period.
• NOTE: If configured to use only 2 periods, only DAY and NIGHT will be used, and the MORN and EVEN periods will not be used or visible. If you use 1 period and 7 day programming, then thermostat will reset to the desired set temperature at the same time each day.
• Once either HEAT or COOL programming sections has been selected, choose which day[s] to schedule together (i.e. all weekdays together, or each day separately). Use the UP or DOWN buttons to scroll through the blinking days and press the MODE to select each day with a indicator dot. Press FAN to deselect any previously selected day. Once all desired days are selected, move blinking selection to "SCHED" and press the MODE button to proceed.
• Adjust the start time of the first period using UP or DOWN buttons and press the MODE button. Press the UP or DOWN buttons to set the desired temperature for the first period. Press the MODE button to continue to the next period.
• Repeat until all periods have been set. Thermostat will return to day selection page.
• If all desired days have been scheduled select "EXIT" and press MODE. Otherwise use the UP and DOWN buttons to move blinking selection to desired days and press MODE to select day[s] for scheduling.

ENTERING EMERGENCY HEAT MODE (HP UNITS ONLY)

• While in HEAT mode, press DOWN + MODE for 5 seconds. The thermostat will show HEAT with "E" to confirm Emergency Heat mode. This will use only the W2 terminal as the heating source and will not call for compressor heating.
• To return to normal heating mode, set thermostat to HEAT mode, press and hold BOTH the MODE and DOWN buttons for at least 5 seconds until the screen changes. The "E" will disappear and only show "HEAT" to confirm regular Heat mode.

Friedrich Air Conditioning Co.
10001 Reunion Pl Suite 500,
San Antonio, TX 78216 1-877-599-5665
www.friedrich.com