Islandaire EZ12 - User Manual

EZ Series GS
Direct Vent Gas-Fired PTAC
Perfect t for replacing existing gas heat PTAC units and for new
construction projects
Engineering Manual
MANUFACTURER OF QUALITY AIR CONDITIONING AND HEATING PRODUCTS
6140212 Rev. 071221
WARNING
If the information in these instructions is not followed
exactly, a re or explosion may result causing property
damage, personal injury, or loss of life.
Do not store or use gasoline or other ammable vapors and
liquids in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS:
•Do not try to light any appliance.
•Do not touch any electrical switch; do not use any phone
in your building.
•Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
•If you cannot reach your gas supplier, call the re
department.
Installation and service must be performed by a qualied
installer, service agency, or the gas supplier.
INSTALLER:
Leave this
manual with the
appliance.
CONSUMER:
Retain this
manual for future
reference.
Attention: This heater may be installed in the U.S. and Canada.

Summary

APPLICATIONS

RETROFIT;REPLACEMENT

Units designed for easy replacement of existing PTAC units.

PRODUCT OVERVIEW (EZGS)

QUIET OPERATION

Features contributing to reduced operating sound levels.

SAFETY FEATURES

Safety aspects like electronic hot surface ignition.

DURABLE CONSTRUCTION

Materials and build quality for longevity.

STANDARD CHASSIS FEATURES AND BENEFITS

SLIDE OUT CHASSIS

Ease of installation, service, and component access.

GAS HEAT EXCHANGER

Material and heating capability of the heat exchanger.

STANDARD CHASSIS FEATURES AND BENEFITS (cont.)

CONTROL PANEL OPTIONS

Digital touchpad and mechanical control interfaces.

ORDERING DATA

MODEL NOMENCLATURE

Breakdown of the model number coding system.

PERFORMANCE DATA

DIMENSIONAL DRAWINGS

MINIMUM OPERATIONAL CLEARANCES

Outdoor Clearances

Required minimum space around the unit exterior.

Clearances to Combustible Construction

Safety clearances for combustible materials.

OPTIONS AND ACCESSORIES

CONDENSATE DRAIN KIT

Purpose and installation of the condensate drain kit.

INSTALLATION INSTRUCTIONS

UNIT SPECIFICATIONS

Key technical specifications for the unit.

SAFETY INFORMATION

Critical safety precautions during installation.

SIDEWALL VENTING REQUIREMENTS

CANADA VENTING EXCEPTIONS

Specific sidewall venting regulations for Canada.

WALL SLEEVE INSTALLATION INSTRUCTIONS

FRAMING REQUIREMENTS

Structural requirements for wall opening framing.

CONDENSATE DRAIN KIT

EXTERNAL DRAIN INSTALLATION

CONDENSATE DRAIN KIT (cont.)

INTERNAL DRAIN INSTALLATION

CHASSIS INSTALLATION

CHASSIS INSTALLATION STEPS

Procedures for installing the chassis into the wall sleeve.

GAS CONNECTIONS

GAS PIPE SPECIFICATIONS

FRESH AIR VENT AND LATERAL DUCT KIT (cont.)

INSTALLING LATERAL DUCT

MAINTENANCE

ROUTINE MAINTENANCE SCHEDULE

Regular maintenance tasks for the unit.

LIGHTING, OPERATING & SHUT DOWN

OPERATING SAFETY INFORMATION

Critical safety precautions during operation.

OPERATING AND SHUT DOWN PROCEDURES

Procedures for normal operation and shutdown.

WIRING DIAGRAMS

SYSTEM CONTROLS AND MANAGEMENT

REMOTE CONTROL OPERATION

DIGITAL CONTROL PANEL FEATURES

Key features of the built-in digital control panel.

MECHANICAL CONTROL PANEL FEATURES

SYSTEM CONTROLS AND MANAGEMENT (cont.)

SYSTEM MANAGEMENT SOFTWARE

MECHANICAL CONTROL PANEL OPERATION

ROOM FREEZE PREVENTION

COOLING MODE OPERATION

COMPRESSOR HIGH TEMPERATURE PROTECTION

Safety feature for compressor overheating.

HEAT MODE OPERATION

COMPRESSOR LOW TEMPERATURE PROTECTION

DIAGNOSTIC SOFTWARE

Self-diagnostic capabilities and error reporting.

SYSTEM CONTROLS AND MANAGEMENT (cont.)

DIGITAL CONTROL PANEL OPERATION

Detailed operation of the digital control panel.

REMOTE THERMOSTAT INTERFACE

THERMOSTAT TERMINAL CONNECTIONS

Description of various terminal connections for thermostats.

CONTROL BOARD (cont.)

DIP SWITCH SETTINGS

Configuration options using DIP switches.

TEMPERATURE LIMITING

SET TEMPERATURE LIMITING

ERROR CODES

CONTROL PANEL DISPLAY DIAGNOSTICS

How the unit panel displays error codes.

PERFORMANCE SPECIFICATIONS (cont.)

5.0 GENERAL REQUIREMENTS

PERFORMANCE SPECIFICATIONS (cont.)

4.01 GAS FURNACE OPERATION

Detailed operation of the gas heating system.

TYPICAL WARRANTY

Islandaire EZ12 Specifications

General

Brand	Islandaire
Model	EZ12
Category	Gas Heater
Language	English