Lennox Carel pGD1 User manual

1LNX74-543.3
THIS MANUAL IS THE PROPERTY OF THE OWNER.
PLEASE LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB.
Application
The pGD1 is a remote user interface for the Carel controller
that is available to be used on all model "DLV" Packaged
Ventilation/Dedicated Outside Air System (DOAS) Units.
The interface allows a user to access the Carel controller
remotely for setpoint changes and to view the operational
status of the equipment. The interface features an LED
backlit graphic display and buttons for excellent visibility. Also
included is a buzzer to indicate alarm conditions. The interface
can be used as a handheld device or can be wall mounted.
Two common uses for the pGD1:
• When servicing the unit, depending on factors such as unit
size or roof curb height, the unit mounted controller may
require a ladder to access. Having the ability to navigate
through the controller menus from roof level may be easier
with this device.
• Maintenance personnel may wish to have the pGD1
mounted in an equipment control room.
Note: The pGD1 does not have temperature/humidity control
capabilities. It is only meant as an interface to the Carel
controller menu structure remotely. For space temperature/
humidity sensing/control, please refer to the literature for the
Carel pAD.
August, 2021
INSTALLATION INSTRUCTIONS
Carel pGD1 Digital Display/Interface Module
Packaged Ventilation/Dedicated Outside Air System (DOAS)
model DLV
LNX74-543.3
5H0816770002
1. The use of this manual is specifically intended
for a qualified installation and service agency.
All installation and service of these kits must be
performed by a qualified installation and service
agency.
2. These instructions must also be used in
conjunction with the Installation and Service
Manual originally shipped with the unit, in addition
to any other accompanying component supplier
literature.
IMPORTANT
Figure 1.1 - Carel pGD1 Display/Interface Module
Model Number: PGD1000WX0
Power Supply Input: 24 Vac (powered from unit controller)
Operating
Conditions:
• -4°F to 140°F
• 10 to 85% Relative Humidity
(non-condensing)
Index of Protection: IP40 (NEMA Type 1)
Maximum Wired
Distance:
100 feet using RJ12 cable
Dimensions: 6.14” W x 1.22” D x 3.23” H
WARNING
1. Disconnect power supply before making wiring
connections to prevent electrical shock and
equipment damage.
2. All units must be wired strictly in accordance with
wiring diagram furnished with the unit. Any wiring
different from the wiring diagram could result in a
hazard to persons and property.
3. All wiring must be done with a wiring material
having a temperature rating of at least 105°C.

2LNX74-543.3
Carel pGD1 Digital Display/Interface Module
MOUNTING
HOLES
RJ12 CABLE
CONNECTION
Figure 2.1 – Exploded View of pGD1 Interface Module
2. Attach the back to a standard 2” x 4” electrical box mounted
sideways. Use the round-head screws supplied through
the mounting holes on the back of the interface module as
shown in Figure 2.1.
3. Connect one end of an RJ12 cable (not to exceed 100 feet
in length) to the back connection on the pGD1 (see Figure
2.2). For the connection at the unit mounted controller,
refer to the section "Wiring Connection at Unit Controller".
Note: If the distance between the pGD1 and the Carel
controller exceeds 100 feet, refer to the appropriate Carel
literature for further information.
4. Attach the pGD1 controller to the back that was mounted
in Step 2 using the flush-head screws supplied in the
packaging and then install the front trim plate.
5. Proceed to section "Wiring Connection at Unit Controller".
Handheld Installation
For handheld use of the pGD1 interface, follow the steps below,
otherwise proceed to the section "Wall Installation".
1. If the pGD1 interface is to be used as a hand-held device,
connect one end of an RJ12 cable (not to exceed 100 feet
in length) to the back connection on the pGD1 (see Figure
2.1). For the connection at the unit mounted controller, refer
to the section "Wiring Connection at Unit Controller".
Note: If the distance between the pGD1 and the Carel
controller exceeds 100 feet, refer to the appropriate Carel
literature for further information.
2. Proceed to section "Wiring Connection at Unit Controller".
Wall Installation
For wall mounting of the pGD1 interface, follow the steps below,
otherwise proceed to the section "Handheld Installation".
1. If the pGD1 interface is to be used as a hand-held device,
remove the back of the interface module and front trim plate
as shown in Figure 2.1.
Figure 2.2 - Optional External Data Port
Wiring Connection at Unit Controller
The wiring of the pGD1 interface to the unit must be within 100
feet. If the distance exceeds 100 feet, refer to the appropriate
Carel literature for further information.
The wiring of the pGD1 interface to the unit controller varies by
unit model and configuration as follows:
• Direct to Unit Controller: The RJ12 cable is to be
connected to the J10 connection on the unit mounted
controller. Applies to all units.
• Units with External Data Port Option: Some units are
equipped with an external data port option on the exterior
of the cabinet as shown in Figure 2.2. The RJ12 cable is to
be connected to the data port connection. Applies only to B
and C-Cabinet units that include the option.

3LNX74-543.3
Carel pGD1 Digital Display/Interface Module
Button Features
The pGD1 has 6 buttons for control. Refer to Figure 3.1 for the
buttons and their functions:
Figure 3.1 – pGD1 Button Features
ALARM: Press once to indicate information
regarding active alarms (red if active alarms).
Press twice to reset any active manual-reset
alarms.
PRG: Press to select the main navigation menu.
ESC: Press to return to the main display screen
showing unit status.
UP: Press to either:
• Scroll through the various display screens,
providing the cursor is in the top left position.
• Increase the value of a set point adjustment.
ENTER: Press to confirm any set point
adjustments and move the cursor to the next
available set point.
DOWN: Press to either:
• Scroll through the various display screens,
providing the cursor is in the top left position.
• Decrease the value of a set point adjustment.
For detailed instructions on the how to use the pGD1, please
refer to the latest revision of the Controls Manual that shipped
with the unit.
Note: In most cases, the unit controller will automatically
recognize the pGD1 when connected. If the pGD1 is not
recognized, refer to the section "Addressing the pGD1 in the
Carel Controller" on the next page.
Addressing the pGD1 in the Carel Controller
Once the pGD1 is connected to the Carel controller, the
controller should automatically detect the pGD1. If it doesn't,
the address must be set as follows:
1. Press and hold down the UP+DOWN+ENTER buttons
simultaneously until “Display Address” screen is shown.
The address settings should be:
• Display: 32
• I/O Board: 1 (for PCO3, 5, or OEM+) or 2 (for PCOxs)
2. If the settings are not as shown, press the ENTER button
to go to the “Terminal Config” screen as follows:
3. Press the ENTER button again. The display will show the
terminal configuration screen, similar to the following:
4. Press the ENTER button until the cursor is underneath the
Trm1 setting. Press the UP or DOWN buttons to change
the value to 32.
5. Press the ENTER button until the cursor is underneath
Pr or Sh. Press the UP or DOWN buttons to change the
value to Pr for units without Energy Recovery (Model Digit
7=A, C, D, F, or R) or Sh for units with a Energy Recovery
(Model Digit 7=B or E).
6. Press the ENTER button until the cursor is underneath
No. Press the UP or DOWN buttons to change the value
to Yes and press the ENTER button to complete the
programming.

Lennox Industries, Inc. • P.O. Box 799900 • Dallas, TX 75379-9900 • Phone: 1.800.4LENNOX (1.800.453.6669)
www.lennoxcommercial.com
© Lennox Industries, Inc. 2021
Lennox Industries, Inc. has a continuous product improvement program and
reserves the right to change design and specifications without notice.