Owners Manual
Table Of Contents
- Introduction
- Applications
- Product Overview
- Chassis Features and Benefits
- Ordering Data - EZ Series 42
- Performance Data - EZ Series 42
- Ordering Data - EZ Series DR (DR.PTAC)
- Performance Data - EZ Series DR (DR.PTAC)
- Dr. PTAC Features
- Dr.PTAC information
- Dimensional drawings
- Options and Accessories
- Clearances and Projections
- Installation Instructions
- Wall Sleeve Installation Instructions
- Condensate Drain Kit
- Rear Grille Installation Instructions
- Subbase Assembly & Installation
- Chassis Installation
- Front Cover Installation & Removal
- Fresh Air Vent
- Maintenance
- Information for Heat Pump units
- Electrical Installation
- Wiring Diagram
- System Controls and Management
- Digital Control Panel
- Remote Thermostats
- Remote Thermostat Interface
- Control Board
- Temperature Limiting
- Error Codes
- Performance Specifications
- Warranty

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Performance Specifications (cont.)
G. Front Panel (supplied with chassis):
Front panel shall be constructed of a polymer mate-
rial to resist breakage and corrosion. It shall have
a front louvered surface with integrated air lters.
e air lters shall be easily accessible without
removing the front panel from the chassis.
H. Fresh Air Vent
e chassis shall have a manual adjustable fresh air
vent with a concealed manual control. e vent
control shall allow a maximum of up to 72-75 CFM
of fresh air to be drawn into the room when the
indoor fan is operating and the door is open.
I. Condensate Removal System
e chassis shall have a condensate removal system
consisting of a condensate suction port, to draw and
atomize condensate, and a slinger ring integrated
in the outdoor fan, to disperse condensate onto the
condenser coil to be evaporated.
Condensation accumulated during reverse cycle
heating must NOT be evaporated against the indoor
coil so as to prevent contamination of the indoor air
with pollutants and odors. Condensation must be
disposed of using a (external/internal) drain system
as shown on plans.
3.01 CONTROLS
All standard models shall be equipped with electrome-
chanical controls to simplify the serviceability of the unit.
A. Standard Controls
e chassis shall have standard controls, accessible.
e mode selection control shall provide OFF, FAN
ONLY, HEAT or COOL operations.
e temperature selection control shall be an
adjustable thermostat with upper and lower lim-
its.
B. Continuous Fan
All standard models shall have a continuous/ fan cycle
selector switch located behind the front panel. It shall
allow the selection of continuous fan operation for
maximum comfort or cycle operation (fan only runs
with cooling or heating operation) for maximum
energy savings.
C. Temperature Limiting
All standard models shall have Temperature Limiting
management built in to the system controls.
e temperature limiting controls allow a room
temperature set-point range to be established, to avoid
extreme temperature settings, to maximize energy
savings.
D. Emergency Heat
Emergency Heat Switch (Heat Pump Models Only),
upon failure of the compressor, shall automatically
disable the compressor in heating mode and only
allow the use of electric strip heater during heating
cycles. e Emergency Heat switch is active at all
outdoor ambient temperatures.
E. Thermostat
Wall thermostat chassis shall come from the factory
ready for wall thermostat installation, including a
blank out plate in place of the digital control panel.
Installation of harness and DIP switch required.
F. Fan Speed Control
Wall thermostat chassis (RC and RP models) shall
have a user-selectable fan speed control switch, on the
control panel, to optimize fan speed for maximum
comfort.










