Dometic VARC series - User Manual

VARC Chiller Control
Operations Manual
Dometic Group Marine Division
Rev. 20170511
L-3499 English
P/N 338208
COPYRIGHT © 2011-2017 Dometic Group Marine Division. All Rights Reserved.
No part of this publication may be reproduced, translated, stored in a retrieval system, or transmitted in any form or by any means
electronic, mechanical, photocopying, recording or otherwise without prior written consent by Dometic Corporation. Every
precaution has been taken in the preparation of this manual to insure its accuracy. However, Dometic Corporation assumes no
responsibility for errors and omission. Neither is any liability assumed for damages resulting from the use of this product and
information contained herein.

Summary

PGD1 and PLDPRO Navigation Controls

Touchscreen Navigation Overview

Main Page Icons Overview

Describes the six main navigation icons on the touchscreen.

General System Overview and Inputs

Digital Inputs and Safety

Covers digital inputs, safety inputs, flow, and pressure limit functions.

Analog Inputs and Pressure Transducers

Relay Output Functions

System Overview and Startup

System Power-up and Startup

Covers initial power-on, MODBUS, startup modes, and checks.

Setpoints and Run Modes

Cooling and Heating Setpoints

Defines adjustable setpoint ranges for cooling and heating.

Compressor Staging and Run Modes

Operational Modes

Pump Operation Details

Cooling and Heating Mode Operations

Details system behavior during cooling and heating cycles.

Main Menu Navigation Tree

Electrical Specifications and Installation

Electrical Specifications Overview

Lists voltage, phase, current, and frequency ratings.

Appendix I: Touchscreen Navigation

Main Page and Chiller Enable Screens

Chiller Summary Screen Details

Alarms Management

Active Alarms Display

Explains how active alarms are shown and reset.

Alarm History Access

Describes how to view past alarms and their details.

Alarm Help and Troubleshooting

Accessing Alarm Causes and Solutions

Details how to find probable causes and troubleshooting steps.

Remote Access Functions

Remote Support and Enable Configuration

Explains how to enable and use remote support.

Remote Configuration Settings

Configuring Remote Login Options

Appendix II: PGD1 & PRO Display Navigation Tree

Program and Technician Settings

Service Settings and Control Loops

Factory Configuration Options

Factory Settings: Compressor and Alarms

EVO Configuration Details

Power + n1 Configuration

Regulation Parameters

I;O Configuration Details

Analog, Digital, and Relay Output Configuration

Appendix III: Multistage Setup

Initial Wiring for Multistage Systems

Describes the initial wiring connections for multistage units.

Basic Wiring Diagram

Diagram for Pump, Stage, and Communication Wiring

Illustrates connections for pumps, stages, and communication.

Networking Setup - Part 1

Technician Password and Stage Addressing

Details entering the technician password and setting stage addresses.

Networking Setup - Part 2

Setting Display and I;O Board Addresses

Explains how to set device addresses for stages.

Networking Setup - Part 3

Configuring Number of Stages

Details setting the total number of stages in the system.

Appendix IV: Configuration & Setup

Setting Time and Date on the System

Provides steps to configure the system's date and time.

Enabling Electric Heat Function

HMI Setup: Uploading Program

Installing New Software via USB

Touch Screen Connection Guide

Activating Maintenance Mode (PGD1)

Enabling Maintenance Mode via PGD1 Display

Step-by-step guide for PGD1 display.

Maintenance Mode Configuration

Service Password and Stage Disable

Details password entry and stage disabling for maintenance.

Enabling Maintenance Mode via Touchscreen

Accessing Maintenance Mode via Chiller Summary

Describes using the Chiller Summary screen to enter maintenance mode.

Maintenance Mode Operation

Chiller Control and Stage Disabling

Explains how to enable maintenance and disable individual stages.

Appendix V: Alarm Table

Alarm Descriptions and Corrective Actions

Lists alarms, their triggers, and troubleshooting steps.

Additional Alarms and Power+ Faults

Covers more alarms and Power+ related faults.

Power+ Alarms and Drive Faults

Details specific Power+ alarms and drive issues.

Appendix VI: Default Parameters

Default Cooling, Heating, and Compressor Settings

Lists default setpoints and compressor parameters.

Default Alarm Setups and Configuration Menu

Lists default alarm settings and menu units.

Appendix VII: I;O Table and Wiring Diagram

I;O Table for Inputs and Outputs

Details analog and digital I/O assignments.

VARC Standard Wiring Diagram

Electrical Connections Diagram

Provides a detailed schematic of electrical connections.

Dometic VARC series Specifications

General

Brand	Dometic
Model	VARC series
Category	Chiller
Language	English