Service and Parts Manual (2016, 2017, 2018, 2014, 2015, 2013, 2012)
Table Of Contents
- INTRODUCTION
- IMPORTANT SAFETY INFORMATION
- PERSONAL INJURY OR DEATH HAZARDS
- Operation of Equipment in During Construction
- Equipment Identification
- Model and Serial Number Location
- Model and Serial Number information is found on the Manufacturer’s DATA TAG, located on the front or top.
- Model Number Reference Guide
- SERIAL NUMBER REFERENCE GUIDE
- Chassis Specifications
- Small Chassis Dimensions
- Large Chassis Dimensions
- Electrical Data
- Electrical Requirements
- Electrical Ratings Table
- Supply Air Flow and Data
- ELECTRONIC CONTROL BOARD FEATURES
- Electronic Sequence of Operation
- Interface Connector Definitions
- Remote Wall Thermostat
- Remote Wall Thermostat Location
- Desk Control
- Auxiliary Fan Control
- Unit Heat Control Operation - Heat Pump With Electric Heat
- Refrigeration Sequence Of Operation
- Remove The Chassis
- Servicing / Chassis Quick Changeouts
- To Remove the Chassis from the Closet:
- Refrigerant Charging
- Undercharged Refrigerant Systems
- Overcharged Refrigerant Systems
- Restricted Refrigerant System
- Sealed System Method of Charging/ Repairs
- Checking External Static Pressure
- Explanation of charts
- Indoor Airflow Data
- Ductwork Preparation
- Fresh Air Door
- Checking Approximate Airflow
- Electric Heat Strips
- COMPONENT TESTING
- Hermetic Components Check
- Reversing Valve Description And Operation
- Testing The Reversing Valve Solenoid Coil
- Checking The Reversing Valve
- Touch Test Chart : To Service Reversing Valves
- Compressor Checks
- Compressor Replacement -Special Procedure in Case of Compressor Burnout
- Fan Motor
- Capacitors
- Heating Element and Limit Switch
- Drain Pan Valve
- Thermistor Resistence Values (This Table Applies to All Thermistors)
- Testing the Diagnostic Service Module
- Testing the Electronic Control Board
- ELECTRONIC CONTROL BOARD COMPONENTS IDENTIFICATION AND TESTING
- Error Codes and Alarm Status
- Electrical Troubleshooting Chart - Cooling
- 9K Btu, 12K Btu, & 18K Btu
- 24K Btu
- Electrical Troubleshooting Chart - Heat Pump
- Troubleshooting Chart - Cooling
- 9-18K VEA 208/230V
- 9-18K VHA 208/230V
- 9-18K VHA 265V
- 24K VEA 208/230V 2.5/3.4/5.0
- 24K VEA 208/230V 7.5/10.0
- 24K VHA 208/230V 2.5/3.4/5.0
- 24K VHA 208/230V 7.5/10
- 24K VHA 265V 2.5/3.4/5.0
- 24K VHA 265V 7.5/10.0
- VEA9K, VHA9K, VEA12K, VHA12K, VEA18K Figure 901
- AVAILABLE ACCESSORIES
- Thermostat - Rt6
- Thermostat - Rt6p
- Thermostat - WRT1
- Drain Pan
96 PB
Terminal Designator Descriptions
R – 24 VAC hot
C – 24 VAC common
O/B – Configurable
O – Cool active reversing valve
B – Heat active reversing valve
RT6P Output Chart
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
OFF
Configuration Mode
Press the up or down button to change settings within each screen.
Press the button to advance to the next screen.
To exit configuration mode, press the CONFIG switch for 1 second.
Pressing the
left
button will return you to the previous screen.
Down
button
Up
button
Left
button
Right
button
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:
CONFIG
Wiring Diagrams
Heat/Cool Systems
1. Verify the RT6P is in the OFF mode.
Press the SYS (left) button until o 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.
Heat pump with electric backup
Configuration 1
ST
Cool 1
ST
Heat 2
ND
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 dierent systems. The configuration directly aects the outputs.
Use the output chart to correctly configure and wire the thermostat to your system.
AVAILABLE ACCESSORIES
Thermostat - Rt6p