Installation Instructions
Issue Date June 16, 2003
© 2003 Johnson Controls, Inc.
1
Part No. 24-7664-2543, Rev. —
www.johnsoncontrols.com
A419ABG-3C Electronic Temperature Control
Application
IMPORTANT:
Use this A419ABG-3C Electronic
Temperature Control only as an operating control.
Where failure or malfunction of the A419ABG-3C
Electronic Temperature Control could lead to
personal injury or property damage to the controlled
equipment or other property, additional precautions
must be designed into the system. Incorporate and
maintain other devices such as supervisory or alarm
systems or safety or limit controls intended to warn
of, or protect against, failure or malfunction of the
A419ABG-3C Electronic Temperature Control.
The A419 Electronic Temperature Control is a
single-stage, electronic temperature control. Pre-wired
cords with plug and receptacle ends are provided for
quick and simple installation.
The control features a lockable, three-button touchpad
for setup and adjustment and a Liquid Crystal Display
(LCD) which displays the sensed temperature and
other control functions. A front panel Light-Emitting
Diode (LED) indicates the output relay status. The
control has a setpoint range of -30 to 212°F
(-34 to 100°C) and is available in 120 VAC models.
See the
Technical Specifications
section.
The A419 control has heating and cooling modes with
adjustable setpoint and differential, an adjustable
anti-short cycle delay, and a temperature offset
(setback) function. The control provides remote
sensing capability, and electronic accuracy in a
Type NEMA 1 high-impact plastic enclosure suitable
for surface or DIN rail mounting. The temperature
sensor supplied with the control is interchangeable
with compatible Johnson Controls/PENN® A99
temperature sensors.
FCC Compliance
This equipment has been tested and found to comply
with the limits for a Class A digital device pursuant to
Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful
interference when the equipment is operated in a
commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the
instruction manual, may cause harmful interference to
radio communications. Operation of this equipment in
a residential area is likely to cause harmful
interference, in which case the user will be required to
correct the interference at his/her own expense.
Canadian DOC Compliance
This digital apparatus does not exceed the Class A
limits for radio noise emissions from digital apparatus
set out in the Radio Interference Regulations of the
Canadian Department of Communications.
Installation
Refer to the following guidelines, procedures and
illustrations when installing an A419 control.
Parts Included
Pre-wired cords with plug and receptacle ends are
provided for quick and simple installation.
Each A419 control includes a Johnson Controls/PENN
A99 temperature sensor. The sensor may be removed
and replaced with any compatible Johnson Controls®
A99 temperature sensor, or the wire leads on the
sensor may be extended.
See the
Mounting
and
Wiring
sections for additional
guidelines and restrictions when mounting and wiring
the control.
