ICP NAC248AKA1 User Manual

INSTALLATION INSTRUCTIONS
Split System
Performance Line
AC & HP Condensers
These instructions must be read and understood completely before attempting installation.
Installation / Startup Information & Warranty
Installation or repairs made by unqualified
persons can result in hazards to you and others.
Installation MUST conform with local building
codes or, in the absence of local codes, with the
the National Electrical Code NFPA 70/ANSI
C1-1999 or current edition and Canadian
Electrical Code Part 1 CSA C.22.1.
The information contained in this manual is
intended for use by a qualified service technician
familiar with safety procedures and equipped
with the proper tools and test instruments.
Failure to carefully read and follow all instruc-
tions in this manual can result in equipment
malfunction, property damage, personal injury
and/or death.
After uncrating unit, inspect thoroughly for hidden damage.
If damage is found, notify the transportation company im-
mediately and file a concealed damage claim.
Locating The Outdoor Unit:
CAUTION
Improper installation, adjustment, alteration, service or
maintenance can void the warranty.
The weight of the condensing unit requires caution and
proper handling procedures when lifting or moving to avoid
personal injury. Use care to avoid contact with sharp or
pointed edges.
Safety Precautions
1. Always wear safety eye wear and work gloves when
installing equipment.
2. Never assume electrical power isdisconnected. Check
with meter and disconnect.
3. Keep hands out of fan areas when power is connected
to equipment.
4. R-22 causes frost-bite burns.
5. R-22 is toxic when burned.
NOTE TO INSTALLING DEALER: The Owners Instruc-
tions and Warranty are to be given to the owner or promi-
nently displayed near the indoor Furnace/Air Handler Unit.
Check local codes covering zoning, noise, platforms.
If practical, avoid locating next to fresh air intakes, vent or
bedroom windows. Noise may carry into the openings and
disturb people inside.
Placement of the unit should be in a well drained area or
unit must be supported high enough so runoff will not enter
the unit.
Do not locate where heat, lint or exhaust fumes will be dis-
charged on unit (as from dryer vents).
Roof top installations are acceptable providing the roof will
support the unit and provisions are made for water drain-
age and the noise or vibration through the structure.
Do not install the unit in a recessed or confined area where
recirculation of discharge air may occur.
Heat Pumps Only: The top surface of platform must be
above average winter snow levels to prevent coil blockage.
421 01 3002 01
Nov., 2003

ICP NAC248AKA1 Specifications

General

Category	Air Conditioner
Seasonal Energy Efficiency Ratio (SEER)	16
Refrigerant	R410A
Model	NAC248AKA1
Heating Seasonal Performance Factor (HSPF)	9.0
Power Supply	208-230V/60Hz/1Ph
Cooling Capacity	24000 BTU/h
Heating Capacity	24000 BTU/h

Summary

Installation / Startup Information & Warranty

Safety Precautions

Essential safety rules to follow during installation and operation of the unit.

Locating The Outdoor Unit

Guidelines for selecting an appropriate and safe location for the outdoor unit.

Clearances

Specifies required minimum distances around the unit for proper operation and servicing.

Unit Support

Details methods and materials for properly supporting the outdoor unit.

Ground Level Installation

Recommendations for supporting units placed on the ground.

Roof Top Installation

Guidelines for installing units on rooftops, including structural considerations.

Installing Refrigerant Lines

Component Matches

Importance of using approved system components for compatibility and performance.

Restrictor Orifice

Information on the restrictor orifice and its role in system performance.

Refrigeration Line Sets

Proper types of tubing and handling for refrigerant line installations.

Installation Instructions For Condensing Units That Are Higher Than Evaporator

Specific guidance for installations where the condenser is elevated above the evaporator.

Brazing Connections

Recommended procedures and safety precautions for brazing refrigerant lines.

Evacuating, And Charging Instructions

Recommended Method Of Evacuating A System

Step-by-step guide for properly evacuating the system using a vacuum pump.

Valve Actuation: Service Valves

Instructions on how to operate and secure service valves on the unit.

REFRIGERATION PIPING & CHARGING

Electrical Wiring

Instructions for safe and correct electrical connections to the unit.

Grounding

Requirements for properly grounding the unit for safety and code compliance.

Wiring Connections

Details on making line voltage and low voltage connections.

Control Box Access

How to safely access the unit's control box for wiring or adjustments.

Heat Pump Control Box

Overview of the heat pump's control box and its components.

A/C Condenser Typical Low Voltage Connections

Diagram showing typical low voltage wiring for A/C systems.

Heat Pump Typical Low Voltage Control Connections

Diagram illustrating low voltage control wiring for heat pump systems.

Start-Up Procedure

Final Refrigeration Charge Adjustment

Guidance on adjusting refrigerant charge for optimal system performance.

Airflow

Importance of establishing correct airflow for system adjustments and performance.

To Check System Refrigerant Charge (Superheat Method), Cooling Only

Procedure for checking and adjusting refrigerant charge using the superheat method.

Heating Checkout (Heat Pump Only)

To Check System Refrigerant Charge (Heating Mode)

Procedure for checking refrigerant charge in heating mode for optimal performance.

Defrost System (Heat Pump Only)

Explanation of the electronic defrost system and its operational parameters.

Maintenance

Defrost Control Time Interval Adjustment

How to adjust the defrost cycle frequency for heat pump operation.

Condensate Drain

Instructions for maintaining the condensate drain to ensure proper drainage.

Cleanliness

Tips for keeping the outdoor unit clean for better efficiency and longevity.

LIMITED WARRANTY CERTIFICATE

GENERAL TERMS

General conditions, limitations, and coverage provided under the product warranty.

ADDITIONAL TERMS FOR RESIDENTIAL APPLICATIONS ONLY

Specific warranty terms and exclusions applicable to residential installations.