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Carrier 30RQS078 User Manual

Carrier 30RQS078
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INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS
Reversible Air-to-Water Heat Pumps
30RQS/30RQSY 039-160 “A”
Original instructions
Nominal cooling capacity 40-160 kW
50 Hz
Touch Pilot Junior
For the operation of the control please refer to the
Touch Pilot Junior Control manual for the 30RB/30RQ 017-160 series
30RQS
30RQSY

Table of Contents

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Carrier 30RQS078 Specifications

General IconGeneral
Model Number30RQS078
CategoryHeat Pump
Refrigerant TypeR-410A
Compressor TypeScroll
Operating Voltage Range187-253V
Phase3
Cooling Capacity232 kW
Heating Capacity78000 BTU/h
Voltage208-230V

Summary

Introduction to Carrier Touch Pilot Junior Units

Equipment Receipt and Verification

Procedure for verifying unit delivery, checking for damage, and confirming specifications.

Installation Safety Considerations

Essential safety precautions to be taken before and during unit installation.

Maintenance Safety Considerations

Safety guidelines for performing maintenance operations on the unit.

Repair Safety Considerations

Safety precautions and procedures for carrying out repairs on the unit.

Moving and Siting the Unit

Unit Moving Procedures

Guidelines and safety precautions for physically moving the unit.

Optimal Unit Siting Recommendations

Recommendations for selecting an appropriate and safe location for unit installation.

Pre-Start System Checks

Final checks and verifications required before initiating the unit's operation.

Dimensions and Clearances

Electrical Data for 30RQS and 30RQSY Units

Application Data Overview

Operating Range: Standard Units (Cooling Mode)

Defines the operational limits for standard units during cooling mode.

Operating Range: Standard Units (Heating Mode)

Defines the operational limits for standard units during heating mode.

Electrical Connection Procedures

Power Supply Requirements

Guidelines for connecting the unit's power supply.

Recommended Wire Sections

Guidance on selecting appropriate wire sections for electrical connections.

Field Control Wiring Instructions

Instructions for connecting the field control wiring to the unit.

Power Supply Considerations

Specifics about the unit's power supply requirements and connections.

Water Connections and Precautions

Operating Precautions for Water Connections

Precautions and recommendations for water circuit connections and fluid compatibility.

Frost Protection for Hydronic Systems

Measures and procedures for protecting the unit's hydronic circuit from frost.

Nominal System Water Flow Control

Variable-Speed Pump: Pressure Differential Control

Flow control for variable-speed pumps based on pressure differential.

Variable-Speed Pump: Temperature Difference Control

Flow control for variable-speed pumps based on temperature difference.

Unit Start-Up Procedures

Preliminary Checks Before Start-Up

Essential checks to perform before initiating the unit start-up.

Actual Unit Start-Up Process

Procedures and important notes for the actual unit start-up process.

Major System Components

Compressor Details

Details on the hermetic scroll compressors used in the units.

Refrigerant Type

Specifies the type of refrigerant used in the 30RQS/RQSY units.

Partial Heat Reclaim Using Desuperheaters (Option 49)

Heat Reclaim Installation and Operation

Instructions for installing and operating the heat reclaim system with desuperheaters.

Brine Option (5B & 6B)

Frost Protection for Brine Options

Frost protection measures for brine options.

Standard Maintenance Procedures

Level 1 Maintenance Tasks

Simple, routine maintenance tasks that can be performed weekly.

Refrigerant Volume Check

How to check and adjust the refrigerant volume for optimal operation.

Start-Up Checklist for Heat Pumps

Preliminary Equipment Check

A checklist for verifying the condition and installation of the unit's equipment.

Unit Start-Up Conditions

Specific checks and conditions to be met before starting the unit.

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