Robertshaw 9555 - Manual

Application
The Robertshaw 9555 is a multi-stage auto changeover thermostat
designed to control 24 VAC gas or electric two-stage heating and two-
stage cooling systems. The 9555 requires the use of a common wire.
Features
• Multi-stage control
• Auto changeover [deadband adjustable from 2°F to 8°F (1.0°C - 4.5°C)]
• Large back lit display
• Adjustable 1 ST and 2 ND stage temperature differential
• Compressor short cycle protection
• Adjustable fan delay on cooling
• LED indication of system status
• Zone system compatible as a master thermostat
• Battery-free EEPROM memory retention
• Optional temperature limiting settings
• Fahrenheit/Celsius display option
• Gas/electric operation
• Adjustable from 45°F to 90°F (7°C - 32°C)
• Quick wire terminal block
1
9555
ELECTRIC
E
GAS
G
®
NeW
2 Heat / 2 Cool
with Auto Changeover
User's Manual
Quick Start
Installation
W
A R R A N T Y
2
TW
O YEAR
DELUXE
NON-PROGRAMMABLE
THERMOSTAT
110-975D
110-975D En.qxd 5/13/03 2:43 PM Page 1 (Black plate)