4
PREFACE
The goal of this manual is to give a broad overview of the main
functions of the Touch Pilot Junior (TPJ) control system used
to control and monitor the operation of the following units:
• 30WG / 61WG units (cooling or heating)
• 30WGA condenserless units (cooling)
Instructions in this manual are given as a guide to good practice
in the installation, start-up and operation of the control system.
This document does not contain full service procedures for
the correct operation of the equipment.
strongly recommended to ensure optimal operation of the
equipment and the optimization of all available functionalities.
Note that this document may refer to optional components
and certain functions, options or accessories may not be
IMPORTANT: All screenshots of the user interface provided
in this manual include text in English. After changing the
language of the system, all labels will be in the language
selected by the user.
Please read all instructions prior to proceeding with any
work. Pay attention to all safety warnings.
The information provided herein is solely for the purpose of
allowing customers to operate and service the equipment
purpose without the prior consent of the Manufacturer.
Abbreviations
In this manual, the refrigerant circuits are called circuit A
and circuit B. Compressors in circuit A are labelled A1, A2
and A3. Those in circuit B are B1 and B2.
30WG, 30WGA (20-140) and 61WG (20-90) units have only
one circuit with one, two, or three compressors (A1, A2, A3).
30WG, 30WGA (150-190) units have two circuits with two
compressors per circuit (A1, A2, B1, B2).
The following abbreviations are used frequently:
BMS Building Management System
CCN Carrier Comfort Network
DGT Discharge Gas Temperature
DHW Domestic Hot Water
EWT Entering Water Temperature
EXV Electronic Expansion Valve
FC Free Cooling
HDC Heating Device Control
HSM Heating System Manager
LED Light Emitting Diode
LEN Internal communication bus linking the controller and
the boards
LWT Leaving Water Temperature
OAT Outdoor Air Temperature
SHC Space Heating Control
SST Saturated Suction Temperature
TPJ Touch Pilot Junior
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