Coleman ECHELON AC21 Series - User Manual

TECHNICAL GUIDE
ECHELON
TM
SERIES
SPLIT SYSTEM
AIR CONDITIONERS
20 SEER – R-410A – 1 PHASE
2 THRU 5 NOMINAL TONS
MODELS: AC21B24 THRU 60
Due to continuous product improvement, specifications
are subject to change without notice.
Visit us on the web at
www.simplygettingthejobdone.com and
www.colemanac.com
Additional rating information can be found at
www.ahridirectory.org
WARRANTY SUMMARY*
Extended 10-Years limited parts warranty.
Extended Lifetime limited compressor warranty.
Extended parts and compressor warranties require online
registration within 90 days of purchase for replacement or
closing for new home construction.
*Does not apply to 3-Phase models, or Internet sales.
See Limited Warranty certificate in User's Information Manual for details.
FOR INSTALLATION IN ALL US REGIONS AND CANADA
Installation Allowed

5443702-CTG-C-0919
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
DESCRIPTION
The Echelon™ Series AC21 variable capacity air conditioners
are the outdoor section of a high efficiency communicating cool-
ing system. They are designed as part of a matched system
using an AVV air handler or variable speed communicating fur-
nace with a CM coil. Both the matched CM coil and AVV air
handler have factory mounted EEVs. The CM coils with factory
mounted EEVs can also be matched with the variable speed
MVC modular air handlers.
FEATURES
• Superior Coil Protection – An easily removable two-piece
steel extruded louver coil guard protects the tube-in-fin coil
from debris and physical damage while making access for
coil cleaning quick and simple.
• Environmentally Friendly Refrigerant – The next genera-
tion refrigerant R-410A delivers environmentally friendly per-
formance with zero ozone depletion.
• Durable Finish – A high quality powder paint finish rated at
1000 hrs. salt spray provides the ultimate protection from
corrosion and harmful UV rays, ensuring a long-lasting, high
quality appearance.
• Charge View™ – A built-in touch screen instantly displays
the system overall condition, including the system pressures
and refrigerant charge without the need to attach additional
gauges or sensors.
• WhisperDrive™ System – Features a combination of engi-
neered, sound-neutralizing attributes such as a swept-wing
fan blade, composite base pan, multi-density compressor
cloak and variable capacity operation to reduce sound levels
to that of a mere conversation.
• ECM Fan Motor – Dynamically adjusts speed in sync with
the compressor demand to keep heat exchange in balance
while minimizing power consumption and sound.
• Swept Wing Fan – A design adapted from aerospace engi-
neering provides whisper-quiet operation by allowing air to
flow smoothly and efficiently across the fan surface and
edges.
• Composite Base Pan – The strong and durable composite
base pan is corrosion resistant while adding strength,
absorbing sound, and reducing vibration.
• High-Efficiency Outdoor Coil – An aluminum fin and cop-
per tube outdoor coil provide easy cleaning, low restriction to
airflow and efficient heat exchange.
• Factory Installed Filter Drier – The liquid line filter drier
removes debris and moisture which can be harmful to the
system.
• Climate Connect™ – provides pre-configured operating
profiles the installing contractor can select during set-up to
fine tune the system's operation for either Humid, Dry, or
Normal climates. Additional fine-tune adjustments are
always available to provide a custom comfort solution.
• Easy Service Access – A large electrical box cover, inde-
pendent Charge View access, and a swing open electrical
box provide superior full corner access to the inside of the
unit for maintenance or service.
• System Protection – Each system contains high and low
pressure transducers which constantly monitor system per-
formance and can alert the consumer or contractor system
concerns or alerts.
• EEV Controls – All indoor coils, whether in the cased CM
coil or in the AVV air handler, have factory installed EEVs
(Electronic Expansion Valves).

Summary

Echelon AC21 Series Overview

Echelon AC21 Series Product Description

Details the Echelon™ Series AC21 variable capacity air conditioners as part of a communicating cooling system.

Key Features of Echelon AC21 Series

Covers features like Superior Coil Protection, Durable Finish, Charge View, WhisperDrive, ECM Fan Motor, etc.

Advanced Capabilities of Echelon AC21

Highlights communications, variable capacity, Wi-Fi thermostat interface, and premium warranty.

Technical Specifications and Identification

Echelon AC21 Model Nomenclature Guide

Explains the coding system used for Echelon AC21 model numbers, including product type, brand, and series.

Echelon AC21 Physical and Electrical Specifications

Provides detailed specifications such as voltage, ampacity, compressor, fan motor, coil, and weight.

Echelon AC21 Dimensions and Refrigerant Connections

Details the physical dimensions and refrigerant service valve sizes for each model.

System Application and Operation

Echelon AC21 System Charge for Matched Units

Provides guidance on refrigerant system charge for various outdoor and indoor unit combinations.

Echelon AC21 Operating Limitations and Conditions

Outlines minimum/maximum operating temperatures and line length limitations for optimal performance.

Echelon AC21 Unit Reduced Capacity Conditions

Explains conditions like inverter temp, over/under current, voltage, and high altitude affecting capacity.

Installation and Wiring

Typical Installation Guidelines for Echelon AC21

Covers overhead clearance, unit placement, and basic installation considerations.

Echelon AC21 Field and Control Wiring

Illustrates power and control wiring for connecting the outdoor unit to the thermostat and indoor unit.

Echelon AC21 Installation Clearances

Details minimum clearances between units and from walls for proper airflow and service access.

Cooling Performance Data

Echelon AC21 2-Ton Cooling Performance Data

Presents detailed cooling performance metrics for 2-ton models across various temperature conditions.

Echelon AC21 3-Ton Cooling Performance Data

Presents detailed cooling performance metrics for 3-ton models across various temperature conditions.

Echelon AC21 4-Ton Cooling Performance Data

Presents detailed cooling performance metrics for 4-ton models across various temperature conditions.

Echelon AC21 5-Ton Cooling Performance Data

Presents detailed cooling performance metrics for 5-ton models across various temperature conditions.

System Capacities, Accessories, and Support

Echelon AC21 Capacity with Modular Air Handlers

Provides cooling capacity ratings for Echelon AC21 units when matched with single-piece and modular air handlers.

Echelon AC21 Capacity with High Efficiency Furnaces

Details cooling capacity for Echelon AC21 systems paired with high efficiency motor furnaces.

Echelon AC21 Cooling Sound Power Ratings

Lists octave band sound power levels for high and low stage cooling operations.

Echelon AC21 Product Warranties

Outlines the limited lifetime compressor warranty and limited 5-year parts warranty.

Overview

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

The Coleman Echelon™ Series AC21 variable capacity air conditioners are outdoor units designed for high-efficiency communicating cooling systems. They are intended to be part of a matched system, utilizing an AVV air handler or a variable speed communicating furnace with a CM coil. Both the matched CM coil and AVV air handler come with factory-mounted Electronic Expansion Valves (EEVs). Additionally, CM coils with factory-mounted EEVs can be paired with variable speed MVC modular air handlers.

Function Description

These units provide cooling for residential and light commercial applications. They operate as part of a communicating system, allowing for precise control and optimization of cooling performance. The variable capacity inverter-controlled scroll compressor continuously monitors and dynamically adjusts system capacity to meet comfort demands. The system is designed for high efficiency, achieving up to 20 SEER.

Important Technical Specifications

• Models: AC21B24 thru 60 (2 to 5 nominal tons)
• SEER Rating: 20 SEER
• Refrigerant: R-410A (environmentally friendly with zero ozone depletion)
• Phase: 1 Phase
• Unit Supply Voltage: 208-230V, 1 Phase, 60Hz
• Normal Voltage Range: 187 to 252V
• Minimum Circuit Ampacity: Ranges from 17.4A (2-ton) to 33.9A (5-ton)
• Max. Overcurrent Device Amps: Ranges from 30A (2-ton) to 50A (5-ton)
• Compressor Type: Scroll, inverter-controlled
• Fan Motor Type: ECM (Electronically Commutated Motor)
• Fan Diameter: 24 inches (2-3 ton), 26 inches (4-5 ton)
• Liquid Line Set OD (Field Installed): 3/8 inch for all models
• Vapor Line Set OD (Field Installed): 3/4 inch (2-3 ton), 7/8 inch (4-5 ton)
• Unit Charge (Lbs. - Oz.): Ranges from 7-8 (2-ton) to 15-1 (5-ton)
• Operating Weight: Ranges from 194 lbs (2-ton) to 270 lbs (5-ton)
• Dimensions (A x B x C):
  • AC21B2421S/AC21B3621S: 40-1/4" H x 35-1/2" W x 32" D
  • AC21B4821S: 43-1/4" H x 38-1/4" W x 34-1/2" D
  • AC21B6021S: 46-1/2" H x 38-1/4" W x 34-1/2" D
• Maximum Allowable Equivalent Line Length: 80 feet
• Operating Temperature Range: 35°F to 125°F (cooling operation)
• Sound Power Levels (dBA):
  • High Stage: 69-74 dBA
  • Low Stage: 53-60 dBA
• Certifications: CSA to UL 1995 / CSA 22.2, ANSI/AHRI Standard 210/240, ENERGY STAR, ISO 9001 certified facility. Florida Building Code certified for ground and rooftop mounted applications.

Usage Features

• Communications Capable: Requires only three thermostat wires between indoor and outdoor units. The system self-commissions on start-up and allows status checks via the outdoor unit, thermostat, or remotely via a designated app.
• Charge View™: A built-in touch screen displays system condition, pressures, and refrigerant charge, eliminating the need for external gauges or sensors.
• WhisperDrive™ System: Incorporates a swept-wing fan blade, composite base pan, multi-density compressor cloak, and variable capacity operation to achieve low sound levels.
• ECM Fan Motor: Dynamically adjusts speed to balance heat exchange, minimize power consumption, and reduce sound.
• Swept Wing Fan: Aerospace-engineered design for whisper-quiet operation and efficient airflow.
• Composite Base Pan: Corrosion-resistant, strong, and durable, also absorbing sound and reducing vibration.
• High-Efficiency Outdoor Coil: Aluminum fin and copper tube coil for easy cleaning, low airflow restriction, and efficient heat exchange.
• Climate Connect™: Pre-configured operating profiles (Humid, Dry, Normal) can be selected during setup, with additional fine-tune adjustments available for custom comfort.
• System Protection: High and low pressure transducers constantly monitor system performance and alert users to concerns.
• High Altitude Protection: Automatically reduces compressor and outdoor fan speeds at altitudes above 6,500 ft / 2,000 m to protect the system.
• Low Ambient Protection: Automatically adjusts to maintain cooling operation down to 35°F (2°C) by reducing capacity or cycling off.
• Inverter Temperature Protection: Reduces compressor speed if excessive inverter temperatures are sensed, returning to normal operation when conditions improve.
• Over / Under Current Protection: Reduces compressor speed if low or high current conditions are sensed, returning to normal operation when conditions improve.
• Over / Under Voltage Protection: Reduces compressor speed if low or high supply voltage conditions are experienced, returning to normal operation when conditions improve.
• Thermostat: Requires Coleman Hx™ Touchscreen Thermostats for advanced, communicating, variable capacity designs. It is recommended to connect the thermostat to Wi-Fi for software updates to optimize performance.

Maintenance Features

• Superior Coil Protection: Easily removable two-piece steel extruded louver coil guards protect the coil from debris and physical damage, simplifying coil cleaning.
• Durable Finish: High-quality powder paint finish (rated at 1000 hrs. salt spray) provides protection against corrosion and UV rays.
• Factory Installed Filter Drier: Liquid line filter drier removes debris and moisture, enhancing system reliability.
• Easy Service Access: Features a large electrical box cover, independent Charge View access, and a swing-open electrical box for full corner access to the unit's interior, facilitating maintenance and compressor removal.
• Removable Fan Guard: Can be removed independently of the top for interior access without damaging the coil.
• Removable Stamped Steel Coil Guards: Two independently removable guards for exterior coil access.
• Separate Electrical Controls Compartment: Accessed without disturbing unit airflow.
• Removable Blockoff Panels: Provide interior unit access through the side.
• Touch-up Paint (S1-5130153**):** Color-matched aerosol paint for touching up unit chassis and panels.

Warranty Summary

• Extended 10-Years Limited Parts Warranty: Requires online registration within 90 days of purchase or new home construction closing.
• Extended Lifetime Limited Compressor Warranty: Requires online registration within 90 days of purchase or new home construction closing.
• Note: Warranties do not apply to 3-Phase models or Internet sales.

Coleman ECHELON AC21 Series Specifications