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Carrier 30RQS140 User Manual

Carrier 30RQS140
56 pages
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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 30RQS140 Specifications

General IconGeneral
Model Number30RQS140
CategoryHeat Pump
Cooling Capacity140, 000 BTU/h
Compressor TypeScroll
RefrigerantR-410A
Phase3
Coefficient of Performance (COP)3.5

Summary

Introduction to Carrier Heat Pumps

Installation Safety Considerations

Safety checks and precautions before unit installation and startup.

Equipment Under Pressure

Information on equipment and components operating under pressure.

Maintenance Safety Guidelines

Safety guidelines for performing maintenance operations on the unit.

Repair Safety Considerations

Safety guidelines and precautions for repairing the unit.

Moving and Siting the Heat Pump Unit

Pre-System Start-Up Checks

Checklist of essential checks before the refrigeration system is started.

Installation Specifics for 30RQSY Units

Electrical Data for 30RQS and 30RQSY Units

Short-Circuit Stability Current (TN System)

Short-circuit stability current data for TN systems.

Compressor Usage and Electrical Data

Compressor usage and electrical data for standard units.

Application Data for Heat Pumps

Operating Range: Standard Units (Cooling Mode)

Operating ranges for standard units in cooling mode.

Operating Range: Standard Units (Heating Mode)

Operating ranges for standard units in heating mode.

Water Heat Exchanger Water Flow Rate

Recommended water flow rates for the heat exchanger.

Electrical Connection Procedures

Power Supply Requirements

Requirements and precautions for the unit's power supply.

Voltage Phase Imbalance Check

Guidelines for checking voltage phase imbalance.

Field Control Wiring Guidelines

Guidelines for field wiring of control circuits.

Water Connections and Operation

Frost Protection Measures

Measures and recommendations for frost protection.

Nominal System Water Flow Control

Variable Speed Pump: Pressure Differential Control

Pressure differential control for variable-speed hydronic pumps.

Variable Speed Pump: Temperature Difference Control

Temperature difference control for variable-speed hydronic pumps.

Heat Pump Start-Up Procedures

Preliminary Checks Before Start-Up

List of essential checks before the refrigeration system is started.

Actual Unit Start-Up Procedure

Procedure for the actual start-up of the heat pump.

Specific Details for 30RQSY Units with Fan Static Pressure

Partial Heat Reclaim Using Desuperheaters (Option 49)

Heat Reclaim Installation and Operation

Installation and operation of the heat reclaim option.

Desuperheater Operating Limits

Operating limits for the desuperheater option.

Brine Option (5B & 6B)

Frost Protection for Brine Systems

Measures and recommendations for frost protection in brine systems.

Standard Maintenance Procedures

Level 2 Maintenance Tasks

Monthly/annual maintenance requiring specific skills.

Level 3 (or Higher) Maintenance

Maintenance requiring expert skills and manufacturer approval.

Refrigerant Volume Check

How to check and adjust refrigerant volume.

Start-Up Checklist for Heat Pumps

Perform QUICK TEST Function

Performing the QUICK TEST function.

Final Heat Pump Start-Up

Final procedure to start up the heat pump.

Record Temperatures and Pressures

Recording operational temperatures and pressures.

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