Installation & Operation Manual (2019, 2020, 2022)

26
Remote Control Thermostat
Installation
Install Thermostat
1. Approximately 5 ft from the floor.
2. Close to or in a frequently used room,preferably on an inside wall.
3. On a section of wall without pipes or ductwork.
The Thermostat should NOT be mounted:
1. Close to a window, on an outside wall, or next to a door leading
outside.
2. Where it can be exposed to direct sunlight or heat, such as the sun,
a lamp,fireplace or any other temperature radiating object which
may cause a false reading.
3. Close to or in the direct airflow of supply registers and/or return
air grilles.
4. Any areas with poor air circulation, such as a corner,behind a
door,or an alcove.
Remote Thermostat and
Low Voltage Control
Connections
RemoteThermostat
All Friedrich PV model PTAC units are factory configured to be controlled
by either the chassis mounted Smart Center or a 24V remote wall mounted
thermostat.The thermostat may be auto or manual changeover as long as
the control configuration matches that of the PTAC unit.
NOTE: All PV models require a single stage cool, dual stage heat
thermostat with an B reversing valve control.The Friedrich RT6
thermostat can be configured for either model.
To control the unit with a wall mounted thermostat
follow the steps below:
1. Unplug the unit before doing any work
2. Remove the low voltage terminal block from the unit.
3. Connect the corresponding terminals from the wall thermostat to
the terminal block
4. Plug the terminal block on the unitk.
5. Restore power to the unit.
6.
Under OFF mode, set menu NO.'d1' to “r”, details refer to the
previous section "Settings- Detailed Configurations" on page 25.
7. The unit is now controlled by the wall thermostat only.
8.
If the accessory escutcheon kit (PDXRTA) is to be used, install
it over the existing control panel.
NOTE:The unit control panel no longer controls the unit. To restore the control
panel, set menu NO.'d1' back to "P", details refer to the previous section "Settings-
Detailed Configurations" on page 2 .
ThermostatConnections
R = 24V Power from Unit
Y = Call for Cooling
W = Call for Heating
B = Reversing Valve Energized in Heating Mode
GL = Call for Low Fan
GH = Call for High Fan
C = Common Ground
*If only one G terminal is present on thermostat connect to GL for low
speed fan or to GH for high speed fan operation.
Figure 30
Control board with optional PDXRTB escutcheon kit
installed
FRP030