Installation & Operation Manual (2019, 2020, 2022)
Table Of Contents
- Table of Contents
- Congratulations
- General Instructions
- WARNING
- WARNING
- Read Installation Operation Manual
- General Specifications
- Typical Unit Components and Dimensions
- Installation Checklist
- PTAC Installation Recommendations
- For proper PTAC unit performance and maximum opera
- For PTACs on the ground floor or anytime obstructi
- Wall Sleeve Installation Instructions (PDXWSA)
- WARNING
- Falling Object Hazard
- Alternate Wall Installations
- One-Piece Deep Wall Sleeve Installation (PDXWSEXT
- PXDR10 Drain Kit Installation Instructions (option
- Internal Drain
- FRONT VIEW
- Drain Tube Installation (See Figure 12)
- Cover Plate Installation
- DETAIL B
- PXGA Standard Grille Installation Instructions
- WARNING
- Falling Object Hazard
- Electrical Rating Tables
- All units are equipped with standard power cords.
- Electrical Shock Hazard
- Power Cord Information (230/208V models only)
- Electrical Wiring for 265 Volt Models
- Power Cord Installation
- To install the line voltage power leads and condu
- Electrical Shock Hazard
- Chassis Install Preparation
- Check to be sure the wall sleeve, extension (if us
- Suffocation Hazards
- CAUTION
- Unit Damage Hazard
- Chassis Installation
- Excessive Weight Hazard
- Friedrich PTAC Digital Control and Unit Features
- System Configuration
- Fresh Air Vent Control
- Adjusting Air
- Digital Control User Input Configuration
- Dip Switch Setting
- Dip Switches
- Digital Control Operation
- Heat Pump Models (PVH)
- Constant Fan
- Settings- Detailed Configurations
- Remote Control Thermostat Installation
- Install Thermostat
- The Thermostat should NOT be mounted:
- To control the unit with a wall mounted thermosta
- Thermostat Connections
- Electrical Shock Hazard
- Final Inspection & Start-up Checklist
- WARNING
- Basic Troubleshooting
- Error code and solutions
- Accessories
- PV-SERIES
30
Malfunction
Possible Reasons
Solution
Outlet temperature is not always
cooling/heating
Outlet temperature is not high enough when
heating by heat pump.
When outdoor ambient temp is low, the heat
pump will not be able to offer enough heat. Soon
after that, the E-heater will come on to heat.
Fan stops when cooling/heating.
It is normal when the CONSTANT FAN is OFF.
Youcan enable the CONSTANT FAN.
Outdoor is dripping water
Not install the drain pipe kit.
Install the drain pipe kit.
Indoor is dripping water
Wall sleeve is not installed correctly.
Install the wall sleeve according to the
installation manual.
Indoor coil freeze
Outdoor temperature is too low in cooling
mode.
When outdoor temperature is drop to 55°F（12.8℃）
or below, it will cause that indoor coil freeze. Open
the fresh air door, and running at fan mode.
Filter is dirty.
Clean the filter to recover the normal air flow
Error code and solutions
ERROR CODE
Meaning
Solutions
E1
Communication failure between indoor
unit and outdoor unit
Check the communication cables; make sure they are firmly connected. If
the cables are broken, replace them.
E2
Indoor Temp Sensor Open/short
Check the plug is firmly connected. If the sensor is broken, replace it.
E3
Indoor Coil Sensor Open/short
Check the plug is firmly connected. If the sensor is broken, replace it.
E4
1.
Indoor Air Outlet Sensor Open/Short
2.
Outlet Air Over Heat In Electric
Heating Mode
1.
Check the plug is firmly connected. If the sensor is broken, replace it.
2.
In E-Heating mode, check if any obstacles around the air path, remove
them. Make sure the air flow is not blocked.
E5
IPM(DC-INVERTER) Protection (Include
Heat sink Over Heat)
1.
Check the wiring of compressor to the IPM (U/V/W) terminals is
correctly connected. Wrong phase connection is not allowed.
2.
Remove obstacles in the air path that resists heat interchange.
E6
Outdoor Temp Sensor Open/Short
Check the plug is firmly connected. If the sensor is broken, replace it.
E7
Outdoor Coil Sensor Open/Short
Check the plug is firmly connected. If the sensor is broken, replace it.
EC
Compressor Fail Starting/DC-Inverter Fail
1. Check the DIP switch SW2 on the main board (3-position, in red color)
is correctly matched with the unit capacity, refer to the wiring diagram.
Make sure the compressor power cord is firmly and correctly connected.
EH
EEPROM Error
Check the EEPROM chip on the main board is firmly plugged. If still not
solve, replace the main board.
EF
Power Cord Error For 9KBTU, 30A Is
NOT Allowed
Change the power cord to 15A or 20A.
P1
Cooling/Heat Pump Over Load,
Outdoor/Indoor Coil Over Heat
Make sure indoor and outdoor unit vents are not blocked. Clear the air
filter and the condenser after a long time use.
P2
IPM Over Heat Or Over Current
Protection
1.
Make sure indoor and outdoor unit vents are not blocked.
2.
Check the DIP switch SW2 on the main board (3-position, in red color)
is correctly match with the unit capacity, refer to the wiring diagram.
3.
Make sure the compressor power cord is firmly and correctly connected.
P4
Compressor Discharge Over Heat
Protection
1.
Make sure indoor and outdoor unit vents are not blocked.
2.
Check the DIP switch SW2 on the main board (3-position, in red color)
is correctly match with the unit capacity, refer to the wiring diagram.
P7
DC Over/Under Voltage Protection
Make sure the power supply is within the requirement (AC208/230V -
10%+10%)