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Robertshaw 8600 PROGRAMMABLE THERMOSTAT

Robertshaw- 8600- PROGRAMMABLE -THERMOSTAT -pro

Application

The Robertshaw 8425 is a multi-stage thermostat designed to control 24 VAC heat pump systems.

Features

WARNING:

Recycling Thermostat

If this thermostat REPLACES a thermostat that contains mercury, DO NOT discard the old thermostat in the regular trash. Mercury is harmful to humans and the environment. For this reason, do not open, break, or crush the mercury cell. If mercury leaks from a damaged cell, DO NOT touch or handle mercury with bare hands. Use protective, non-absorbent gloves to place mercury into a sealable container. Fill the container with sand or another absorbent material and seal the container completely. Return the mercury or mercury products, in a sealed container, to Invensys Controls Americas or a local recycling center for proper disposal. If you have any questions, call Robertshaw technical support at 1-800-445-8299

Step 1: Replacing Existing Thermostat

Old Terminal New Label Description
R, V-VR or VR-R R 24VAC, return
Y, Y1, M Y1 Compressor relay (Stage 1)
O or R O Reversing valve (cool active)
B B Reversing valve (heat active)
F or G G Fan control relay
Y2 Y2 2nd stage cooling circuit
W2, W-U or E W2/E 2nd stage heating control or emergency heating for heat pumps
C, X or B C 24 VAC, transformer common side
L or X L System monitor
W or W1 W1 1st stage heat – non heat pump

Installing Item 8600 Thermostat

Wiring Diagrams Robertshaw- 8600- PROGRAMMABLE -THERMOSTAT -5 Robertshaw- 8600- PROGRAMMABLE -THERMOSTAT -6 Robertshaw- 8600- PROGRAMMABLE -THERMOSTAT -7

Testing the Thermostat

Programming GuideRobertshaw- 8600- PROGRAMMABLE -THERMOSTAT -8

SETTING TIME OF DAY AND

DAY OF WEEK

PROGRAMMING YOUR THERMOSTAT

Customizing the Thermostat

System

Fan

Temperature Differential
The temperature differential for 1st stage is factory set at 1.0°F (.5°C). This means that whenever the room temperature changes by one degree Fahrenheit from the temperature setting, the system will turn on. If the system turns on too often, increase the temperature differential. NOTE: The temperature differential for 2nd stage is factory set at 2.0°F (1.0°C)
Changing Fahrenheit (°F) to Celsius (°C), the Temperature Differential, and the Filter Monitor

Begin Programmed Operation

Temporary Program Hold

Vacation Hold

Check Filter Reset

Once the filter timer has expired CHECK FILTER will turn on and stay on. To clear the message and reset the timer:
Backlit Display
This thermostat is equipped with a backlight to make night time temperature adjustments quick and easy. Press the button to activate the backlight. The backlight will turn off after about 10 seconds of inactivity
Reset
To reset the thermostat press the RESET button located above the upper left corner of the display

Troubleshooting

Symptom Remedy
Thermostat does not turn on system. Check wiring (see Installation section).
Thermostat turns system on and off too frequently. Increase temperature differential (see Changing the Temperature Differential section).
System fan does not operate properly. Move Electric/Gas switch to either gas or electric, to match system (see Installation section).
Thermostat does not display proper room temperature. Check F/C (Fahrenheit/Celsius) setting. See Changing Fahrenheit(F) to Celsius (C).
If problems with thermostat cannot be resolved, call:

Warranty

Two-Year Limited Warranty
Invensys Controls Americas warrants to the original contractor installer, or to the original consumer user, each new Robertshaw thermostat 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 warranty and our liability does not apply to batteries or merchandise that has been damaged by misuse, neglect, mishandling, alterations, improper installation, or use in a way other than in accordance with Invensys Controls Americas recommendations and instructions. Invensys Controls Americas agrees to repair or replace at its option any thermostat under warranty provided it is returned within the warranty period, postage prepaid, with proof of the date of purchase. Cost of thermostat removal or reinstallation is not the responsibility of Invensys Controls Americas. Repair or replacement as provided under this warranty is the exclusive remedy of the consumer. Invensys Controls Americas shall not be liable for any incidental or consequential damages for breach of any express or implied warranty on this product, or under any other theory of liability. Except to the extent prohibited by applicable law, any implied warranty of merchantability or fitness for a particular purpose on this product is limited to the duration of this warranty. Some states do not allow the exclusion or limitation of incidental or consequential damages, or allow limitations on how long an implied warranty lasts, so the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state
For warranty returns, send thermostat, shipping prepaid to:
Controls Americas

REFERENCE

DOWNLOAD MANUAL

Robertshaw 8600 PROGRAMMABLE THERMOSTAT User Manual

Robertshaw-LOGO

Robertshaw 8600 PROGRAMMABLE THERMOSTAT User Manual

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