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110-975D En.qxd
NeW
110-975D
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
• 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
5/13/03
2:43 PM
®
ST
and 2
ND
stage temperature differential
1
Page 1
9555
G
GAS
2 Heat / 2 Cool
with Auto Changeover
User's Manual
Quick Start
Installation
(Black plate)
DELUXE
NON-PROGRAMMABLE
THERMOSTAT
E
ELECTRIC
2
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Table of Contents
Related Manuals for Robertshaw 9555
Summary of Contents for Robertshaw 9555
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Page 1: Quick Start
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)] •... -
Page 2: Step 1: Replacing Existing Thermostat
110-975D En.qxd 5/13/03 2:43 PM Page 2 (Black plate) IMPORTANT SAFETY INFORMATION WARNING: • Always turn off power at the main power source by unscrewing fuse or switching circuit breaker to the off position before installing, removing, cleaning, or servicing thermostat. •... -
Page 3: Installing
(Black plate) • If you have any questions about cross referencing the old terminal to the new label, reference your equipment installation manual, a licensed contractor, or call Robertshaw Technical Support at (800) 445-8299. 4. Remove existing thermostat base from wall. - Page 4 110-975D En.qxd 5/13/03 2:43 PM Page 4 (Black plate) 4. Remove the cover using a coin or screwdriver (Figure 3). Set aside. Figure 3 5. Place thermostat against the wall at desired location. Make sure wires will feed through opening (Figure 4) on base of thermostat. 6.
- Page 5 13. Make sure wire connections are secure. 14. Push access wire back through opening. Figure 5 Wiring Diagrams for 9555 9555 WIRING SAMPLE #1 Typical 1 heat / 1 cool system 9555 WIRING SAMPLE #2 Typical 1 stage heat / 2 stage cool system...
- Page 6 110-975D En.qxd 5/13/03 2:43 PM Page 6 (Black plate) TERMINAL LEGEND - 9555 TERM EQUIPMENT TO CONNECT REQ? TERMINAL FUNCTION 24VAC common connection For input of 24VAC common side of transformer 24VAC hot connection For input of 24VAC hot side...
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Page 7: Step 3: Testing The Thermostat
110-975D En.qxd 5/13/03 2:43 PM Page 7 (Black plate) Cut the J3 jumper to enable temperature limiting Figure 7 17. Replace thermostat cover by snapping into place. 18. Turn on power to system. Test thermostat as described in the fol- lowing section. - Page 8 110-975D En.qxd 5/13/03 2:43 PM Page 8 (Black plate) 3. Put the AUTO-HEAT-OFF-COOL switch into the OFF position. The air conditioning system should turn off. 4. Put the AUTO-HEAT-OFF-COOL switch into the HEAT position. 5. Press the button until the temperature setting is at least 3 degrees above room temperature.
- Page 9 110-975D En.qxd 5/13/03 2:43 PM Page 9 (Black plate) Step 4: Customizing the Thermostat Settings System Cool: The thermostat controls the cooling. Off: The heating and cooling systems are off. Heat: The thermostat controls the heat. AUTO: The thermostat automatically selects heat or cool depending on the temperature.
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Page 10: Led Indicators
LED Indicators The Robertshaw 9555 uses three LED indicators (in addition to icons on the LCD display) to indicate functionality of the thermostat. When illumi- nated, the right orange LED indicates that the thermostat is calling for heat. -
Page 11: Reset
110-975D En.qxd 5/13/03 2:43 PM Page 11 (Black plate) Backlit Display This thermostat is equipped with a backlight to make nighttime tempera- ture adjustments quick and easy. Press the button to activate the backlight. The backlight will turn off after about 15 seconds of inactivity. Reset To reset the thermostat to factory preprogrammed conditions, press the RESET button located beneath the lower left corner... -
Page 12: Two-Year Limited Warranty
Climate Controls Americas warrants to the original contractor installer, or to the original consumer user, each new Robertshaw thermo- stat to be free from defects in materials and workmanship under normal use and service for a period of two (2) years from date of purchase. This...