Cooper & Hunter CH-IRT05NM - User Manual

Models:
CH-IRT05NM
CH-IRT08NM
CH-IRT15NM
Thank you for choosing Cooper&Hunter rooftop package units, please read this service manual
carefully before operation and retain it for future reference.
Owner`s manual
Rooftop package units
ROOFTOP PACKAGE UNITS

Summary

Safety Precautions

Product Introduction

Nominal Operating Condition

Details the standard operating conditions for cooling and heating.

Operating Range

Specifies the operational temperature ranges for different models.

Pre-installation Instruction

Checking Product Received

Instructions for verifying the product upon delivery and checking for damage.

Standard Accessory Parts

Lists and describes the standard accessory parts included with the unit.

Before Beginning Installation

Guidance on preparing for installation, tools, and materials.

Codes & Regulations

Emphasizes compliance with national and local installation codes.

Replacement Parts

Information on how to order replacement parts using model and serial numbers.

Installation Instructions

Physical Dimension

Provides diagrams and dimensions of the unit models.

General Information

Details unit specifications like capacity, model, refrigerant, and power supply.

Location

Principles for selecting an appropriate installation site for optimal performance.

Crane Way

Instructions and diagrams for safely lifting and handling the unit.

Installation Positions and Clearances

Specifies required clearances around the unit for installation and airflow.

Installation of Condensate Pipe

Details the proper installation of the condensate drain pipe, including angles and connections.

Electrical Installation

Electrical Date and Wire Sizing

Provides electrical specifications and guidance on wire gauge selection.

Connect Wiring to the Terminals

Instructions and cautions for connecting wiring to the unit's terminals.

Electrical Connections-Supply Voltage

Explains how to connect single-phase and three-phase power supply and low voltage wiring.

Wiring Diagram

Presents the schematic diagram for electrical connections of the unit.

Trial Run

Troubleshooting

Unit Function

Setting of Double Indoor Room Sensors

Explains how to configure the unit to use one of two indoor room sensors.

Checking of Outdoor Ambient Temperature

Describes how to check the outdoor ambient temperature via the wire controller.

Error Code Meaning

Maintenance

Cleaning the Air Filter

Guidance on how to clean the air filter for optimal performance.

Cleaning the Outdoor Heat Exchanger

Instructions for cleaning the outdoor heat exchanger regularly.

Maintenance at the Beginning of Operating Season

Checks to perform before starting the unit for the season.

Maintenance at the End of the Operational Season

Procedures for preparing the unit for long-term storage.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

This document is an owner's manual for Cooper&Hunter rooftop package units, specifically models CH-IRT05NM, CH-IRT08NM, and CH-IRT15NM. It provides essential information for the installation, operation, and maintenance of these air conditioning units.

Function Description:

The Cooper&Hunter rooftop packaged units are designed to provide a wide range of cooling and heating capacities, from 5 to 15 tons. These units are completely assembled, piped, and wired at the factory, ensuring a single-piece shipment and rigging. They are pressurized with a holding charge of Refrigerant-410a for storage and shipping. The compact design, attractive appearance, outstanding anti-rust cabinet, and quiet operation make them suitable for various applications, including manufactured or modular homes, offices, restaurants, and residences.

Important Technical Specifications:

• Models: CH-IRT05NM, CH-IRT08NM, CH-IRT15NM
• Capacity Range: 5 to 15 Ton (1 Ton = 12000 Btu/h = 3.517 kW)
• Refrigerant: R410A
• Function: Heat Pump
• Climate Type: T3
• Power Supply: 380-415V, 3Ph, 50/60Hz for all models.
• Nominal Operating Conditions (Cooling):
  • Outdoor: 35°C DB (Dry Bulb), 24°C WB (Wet Bulb)
  • Indoor: 27°C DB, 19°C WB
• Nominal Operating Conditions (Heating):
  • Outdoor: 7°C DB, 6°C WB
  • Indoor: 20°C DB, 15°C WB
• Operating Range (CH-IRT05NM):
  • Cooling: -5°C to 52°C DB (Outdoor)
  • Heating: -15°C to 24°C DB (Outdoor)
• Operating Range (CH-IRT08NM):
  • Cooling: 5°C to 52°C DB (Outdoor)
  • Heating: -15°C to 24°C DB (Outdoor)
• Operating Range (CH-IRT15NM):
  • Cooling: 5°C to 52°C DB (Outdoor)
  • Heating: 10°C to 24°C DB (Outdoor)
• Drain Connection Size: 3/4" (NPT) for all models.
• Electrical Data and Wire Sizing:
  • CH-IRT05NM:
    • Capability of Air Switch: 25A
    • Min. Sectional Area of Earth Wire: 4.0 mm²
    • Min. Sectional Area of Power Cord: 4.0 mm²
  • CH-IRT08NM:
    • Capability of Air Switch: 32A
    • Min. Sectional Area of Earth Wire: 6.0 mm²
    • Min. Sectional Area of Power Cord: 6.0 mm²
  • CH-IRT15NM:
    • Capability of Air Switch: 50A
    • Min. Sectional Area of Earth Wire: 10.0 mm²
    • Min. Sectional Area of Power Cord: 10.0 mm²
• Physical Dimensions (mm):
  • CH-IRT05NM: A=815, B=1750, C=1100, D=80, E=133, F=408, G=61, H=904, I=50, J=145, K=125, L=795, M=169
  • CH-IRT08NM: A=1225, B=2210, C=1450, D=75, E=134, F=670, G=100, H=1112, I=84, J=198, K=211, L=868, M=361
  • CH-IRT15NM: A=1245, B=2810, C=2240, D=90, E=144, F=592, G=43, H=1872, I=177, J=211, K=168, L=1900, M=168
• Installation Clearances (Minimum):
  • CH-IRT05NM: A=600mm (24in), B=1100mm (43in), C=860mm (34in), D=1100mm (43in), E=1100mm (43in)
  • CH-IRT08NM & CH-IRT15NM: A=1000mm (39in), B=1500mm (59in), C=1100mm (43in), D=1100mm (43in), E=1830mm (72in)

Usage Features:

• Wired Controller: The units are controlled via a wired controller, which is included as a standard accessory. This controller allows users to manage the unit's operation.
• Double Indoor Room Sensors: The rooftop packaged units feature two indoor room sensors. One is located at the air intake of the unit, and the other is inside the wired controller. Users can select which sensor to use based on engineering requirements.
• Outdoor Ambient Temperature Display: The wired controller can display the outdoor ambient temperature, offering convenience to users.
• Error Code Display: The unit provides error codes (e.g., E1 for Compressor high pressure protection, F3 for Outdoor ambient temperature sensor error) to help diagnose malfunctions. When connected to the wired controller, error codes are simultaneously shown on it. Some fan-related error codes (AL, AH, AA, A1, AF, AC, Ad, A0, UL, UP, AE, AJ, A6, A8, A9, An, AU, AP, Ar, U9) are displayed on the main board's "88" display.

Maintenance Features:

• Regular Checks: To prolong the unit's life, regular checks and maintenance by a qualified service person are recommended.
• Air Filter Cleaning: The air filter should be cleaned frequently, ideally once every two weeks, especially in dusty environments. It should not be disassembled during cleaning to avoid damage.
• Outdoor Heat Exchanger Cleaning: The outdoor heat exchanger requires regular cleaning, at least once every two months. Its surface can be cleaned with a vacuum cleaner or nylon brush, but water should not be used.
• Beginning of Operating Season Maintenance:
  • Check air inlet and outlet for blockages.
  • Verify the grounding wire is in good condition.
  • Confirm line connections are secure.
  • Check the drainage pipe for fluent condensate flow.
• End of Operational Season Maintenance:
  • Operate the unit for half a day on a clear weather day to dry its interior.
  • Disconnect the power supply if the unit will not be used for an extended period.
• Safety Precautions During Cleaning:
  • Always cut off all power supply before contacting line connecting equipment.
  • Only clean the unit after it is shut off and power is disconnected to prevent electrical shock or injury.
  • Do not use water to clean the unit to avoid electrical shock.
  • Ensure the air conditioner is firmly installed.

Cooper & Hunter CH-IRT05NM Specifications

General

Brand	Cooper & Hunter
Model	CH-IRT05NM
Category	Air Conditioner
Language	English