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2.
Product Specifications
SPECIFICATION DESCRIPTION
Maximum Number of Stages
Operating Temperature
Shipping Temperature Range
Setpoint Temperature Range
Humidification Setpoint Range
Dehumidification Setpoint Range
Indoor Temperature Display Range
Outdoor Temperature Display Range
Indoor Humidity Display Range
Heat (Single Stage/Multi-Stage)
Cool (Single Stage/Multi-Stage)
Thermostat Configuration Options
Single Stage 1 No Heat Pump (SS1)
Multi Stage 2 No Heat Pump (MS2)
Heat Pump 1
Single Stage Compressor Heat Pump (HP1)
Heat Pump 2
Two Stage or Two Compressor Heat Pump (HP2)
*On every application, 24VAC loads should be reviewed to be sure the indoor unit control power transformer is adequately sized.
3.
General Information
3.1
Overview
The 302 and 303 are programmable thermostats with 5" diagnoal,
blue backlit, touchscreen displays. The 303 features a built-
in humidity sensor that may be used to control a whole house
humidifier (HM) and cooling dehumidification (DHM).
3.2
Contents
— 1-Thermostat
— 1-Sub-base
— 2-Phillips slotted head mounting screws
— 2-Nylon Drywall Anchors
— 1-Installation Guide / User Guide
09/2020 11-HD17D1-1C-EN
Part No. 37-7775005
Product Models
ACONT302 and 303
Products
302/303
Size
4-9/16" x 5-13/16" x 1-3/16" (HxWxD)
Configurations
Heat Pump, Heat/Cool, Dual Fuel, Heat Only, Cooling Only
4 Stages Heat, 2 Stages Cooling
32°F to 105°F (0 to +41°C) / 90% RH Non Condensing
-40 to 150°F (-90 to +65°C)
Input Power (DC)
Two 1.5V AA Alkaline
Input Power (AC)
20-30 VACm NEC Class 11m 50/60 HZ
Terminal Load
1.5A per Terminal, 2.5A Maximum, all Terminals Combined
Wire Usage
18 AWG
System Modes
Auto, Heating, Cooling, Off, Emergency Heat
Fan Modes
Auto, On, Program
45°F to 99°F, (7 to 37°C)
5 to 50% (303 only)
40 TO 95% (303 only)
32°F to 99°F
-40°F to 140°F
0°F to 100°F
RATED DIFFERENTIALS
Fast
0.6°F
1.2°F
Heat Pump
1.2°F
Emer Heat
0.6°F
THERMOSTAT APPLICATION GUIDE
Gas, Oil, Electric, Heat Only, Cool Only or Heat/
Cool Systems, 2 or 3 wire Hydronic Zone (Hot
Water or Steam) Systems, 24 Volt or Millivolt
Single Stage Compressor Heat Pump Systems -
up to 2 Stages Aux./Emergency Heat
Two Stage or Two Compressor Heat Pump
systems - up to 2 Stages Aux./Emergency Heat
American Standard Silver 302 and 303 Touchscreen Thermostat
Thermostat Applications
3.3
Accessories
— Wired Remote Indoor Sensor ZZSENSAL0300AAA
— Wired Remote Outdoor Sensor BAYSEN30ATEMPAA
— Wall Cover Plate BAYCOVR300AA
Slow
1.5F
1.7°F
1.7°F
1.7°F
Maximum Stages Heat/Cool
1+1
2+2
3+1
4+2
3
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