American Standard ACONT401AN21MA Installer's Manual

Installer's Guide
Premium
ACONT401AN21MA
2 Heat (Gas, Oil* or Elec) / 1 Cool / Heat Pump
(Factory set for 2H/1C gas applications)
Electronic Non-Programmable
3 - 9 Wire Hookup (2 for outdoor sensor)
ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
Note: Read the entire instruction manual before starting the
installation.
Contents
Introduction ........................................................................ 1
Application .......................................................................... 1
Product Specifications ...................................................... 1
Installation .......................................................................... 2
Mounting and Wiring .......................................................... 2
SETUP ................................................................................. 3
Checkout ............................................................................. 4
Troubleshooting ................................................................. 6
Features .............................................................................. 7

Introduction

ACONT401AN21MA is a digital non-programmable 2Heat/1
Cool/Heat Pump/Heat-Cool wall mounted low voltage
(24VAC) Comfort Control with backlit LCD and keypad. It
maintains room temperature by controlling the operation of
heating, cooling and heat pump systems. The Comfort
Control is easily configured for heat pump or cooling only and
gas or electric heat applications via the user friendly In-
staller Setup menu. The Comfort Control features include
separate heating and cooling setpoints, selectable auto or
manual changeover, adjustable energy saving mode, adjust-
able filter reminder, outdoor temperature sensing, LitePort
technology for extended system diagnostics and fault notifica-
tion. Setup selections and diagnostics are stored indefinitely
in the Comfort Controls nonvolatile memory eliminating the
need for battery backup.
Safety Considerations
Read the following manufacturer instructions carefully.
Follow all local codes during installation. All wiring must
conform to local and national electrical codes. Improper
wiring or installation may damage comfort control.
Recognize safety information. This is the safety alert symbol
▲
!
. When you see this symbol on the equipment and in the
instruction manual, be alert to the potential for personal
injury.
Understand the signal words DANGER, WARNING and
CAUTION. These words are used with the safety-alert
symbol. DANGER identifies the most serious hazards which
will result in severe personal injury or death. WARNING
signifies a hazard which could result in personal injury or
death. CAUTION is used to identify unsafe practices which
could result in minor personal injury or product and prop-
erty damage.
$
Filter/OD

Application

Heat Pump or A/C
1 Stage Heat Pump**, 1 Stage Aux Heat.
1 Stage Heat Pump**, 0 Stage Aux Heat.
1 Stage Cool, 2 Stage Heat (Gas, Electric or Oil*).
1 Stage Cool, 1 Stage Heat (Gas, Electric or Oil*).
1 Stage Cool, 0 Stage Heat.
0 Stage Cool, 2 Stage Heat (Gas, Electric or Oil*).
0 Stage Cool, 1 Stage Heat (Gas, Electric or Oil*).
* Requires external relay for oil furnace applications.
** External TAYPLUS103A required for dual fuel applica-
tions.
BAYSEN01ATEMPA required for outdoor temperature
sensing and display
SYSTEM MODE: Heat, Cool, Auto, Emergency Heat and Off
FAN MODE: Auto or On

Product Specifications

- Power Source: 20-30VAC, Class II, 50/60Hz.
- Cooling setpoint temperature range: 65F - 90F,
18.0C - 33.0C, 1F and 0.5C resolution.
- Heating setpoint temperature range: 40F- 85F,
5.0C - 30.0C, 1F and 0.5C resolution.
- Default set points: 68F, 20.0C Heat, 78F, 25.5C Cool
- Storage Range: -40F to 140F, 5% - 90% RH non-
condensing.
- Operating Temperature range: 32F - 110F, 5 - 90% RH
non-condensing.
- Outdoor Temperature Display Range: -40F - 140F.
- Minimum Cycle Off Time Delay: Cooling - 5 minutes,
Heating - 1 minute.
- Use minimum 18 gauge NEC approved control
wiring.
11-HD03D2-3
Fan Mode
FIG
Fig. 5
Fig. 5
Fig. 3
Fig. 4
Fig. 4
Fig. 3
Fig. 4