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Dometic PGD1 - User Manual

Dometic PGD1
48 pages
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MARINE
CONTROL UNITS
L-3499 | Form No. 338208 20200323 | ©2020 Dometic Corporation
WARNING
Cancer and Reproductive Harm
www.P65Warnings.ca.gov
VARC MODELS
EN
VARC Chiller Controls
Installation and Operation Instructions ....2
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Dometic PGD1 Specifications

General IconGeneral
BrandDometic
ModelPGD1
CategoryControl Unit
LanguageEnglish

Summary

General Information

Product Description

Details the VARC's PID loop control, EEV, and internal grounding for precise operation.

VARC Control Application

PGD1 LCD Display

LCD Buttons

Touch Screen

Inputs and Outputs

Analog Inputs

Lists and describes analog inputs like temperature and pressure sensors.

Digital Inputs

Digital Relay Outputs

Default Parameters

Specifications

Installation and Setup

Initial Wiring

Provides instructions and warnings for wiring sea water and chilled water pumps.

Multi-stage Wiring

Touch Screen Connection

Firmware Verification

Networking

Configuring Display Addresses

VARC Standard Wiring Diagram

Operation

Operational Modes

Explains main modes: Cool, Heat, Electric Heat, Econo, and Maintenance for system control.

Pump Operation

Current Power Limiting

Powerup and Startup

Normal Stage Startup

Details the staged startup process with time delays and capacity demand.

Operating the Touch Screen

Selecting Econo Mode

Viewing Chiller Status for Each Stage

Monitoring Refrigerant and Chilled Water Circuits

Viewing Active Alarms and Downloading Alarm History

Operating the LCD Screen

Understanding the Display Screens

Explains parameters displayed on the Main screen for monitoring system status and modes.

Adjusting Setpoints

Enabling Electric Heat

Viewing Alarms for Each Stage

LCD Screen Menu Maps

Service Settings

Manual Management

Stage Address

Stage Disable

Factory Settings

Initialization

Alarm Setup

EVO Configuration

Custom

Regulation

Display Address

Maintenance Mode

Accessing Maintenance Mode from the LCD Screen

Step-by-step guide to access maintenance mode via the LCD interface.

Accessing Maintenance Mode from the Touch Screen

Step-by-step guide to access maintenance mode via the touch screen interface.

Troubleshooting

Alarms

Explains the alarm retry logic and system shutdown procedures before an alarm is generated.

Envelope Zone Status Descriptions

Disposal

Warranty Information

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