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This manual covers the following models:

• T805

INSTALLATION MANUAL

A trained, experienced technician 
must install this product.

Carefully read these instructions. You 
could damage this product or cause a 
hazardous condition if you fail to follow 
these instructions.

Need Help?

For assistance with this product please 

visit http://www.pro1iaq.com or call Pro1 

Customer Care toll-free at 888-Pro1iaq 

(776-1427) during normal business hours 

(Mon-Fri 9 AM - 6 PM Eastern)

Installation Tips
Thermostat Quick Reference
Subbase Installation
Wiring
Wiring Diagrams
Technician Setup Menu 
Mounting and Battery Installation
Programming The Thermostat
Specifications

Table of Contents

Thermostat Applications Guide

Page

Battery Power
Hardwire (Common Wire)
Hardwire (Common Wire) with Battery Backup

Power Type

1

n

o

it

p

ir

c

s

e

D

Gas or Oil Heat
Electric Furnace
Heat Pump (No Aux. or Emergency Heat)
Heat Pump (with Aux. or Emergency Heat)
Multi-stage Systems
Heat Only Systems
Cool Only Systems
Millivolt

Yes
Yes
Yes

No
No

Yes
Yes
Yes

Rev. 0730

Una versión española de este 
manual puede ser descargada 
en www.pro1iaq.com

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11, 12, 13

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® U.S. Registered Trademark. Patents pending.
Copyright © 2006 Pro1 IAQ, Inc. All rights reserved.

Summary of Contents for True Comfort IIII

Page 1: ...Installation Wiring Wiring Diagrams Technician Setup Menu Mounting and Battery Installation Programming The Thermostat Specifications Table of Contents Thermostat Applications Guide Page Battery Powe...

Page 2: ...ld air ducts That are in direct sunlight With an outside wall behind the thermostat In areas that do not require conditioning Where there are dead spots or drafts in corners or behind doors Where ther...

Page 3: ...until the 5 minute delay has elapsed Days of the week and time Glow in the Dark Light Button 6 7 8 1 2 3 4 5 Low Battery Indicator Replace batteries when this indicator is shown Program Menu Options...

Page 4: ...Pro1 s products are mercury free However if the product you are replacing contains mercury dispose of it properly Your local waste management authority can give you instructions on recycling and prope...

Page 5: ...d or non shielded 18 22 gauge thermostat wire PRO1 Tips Wiring Terminal Designations If you are replacing a thermostat make note of the terminal connections on the thermostat that is being replaced In...

Page 6: ...C W G C L2 L1 HOT R HEAT RELAY FAN RELAY COMPRESSOR RELAY 6 2 1 FAN RELAY COMPRESSOR RELAY 6 2 HEAT RELAY FAN RELAY 6 2 Typical 1H 1C heat pump system C L2 L1 HOT R HEAT CHANGE OVER VALVE FAN RELAY CO...

Page 7: ...es and a larger swing setting will cause fewer cycles Keypad lockout allows you to configure the thermostat so that none or some of the keys do not function The heating swing setting is adjustable fro...

Page 8: ...he G terminal Fan Operation LCD Will Show Use the or key to select the minmum cool setpoint 44 F This feature allows you to set a minimum cool setpoint value The setpoint temperature cannot be lowerd...

Page 9: ...ol Heat Off Cool Off Heat Off Cool Auto Allows you to put your phone number in the display You can choose ON or OFF Tech Setup Steps Continued from the previous page Contractor Call Number Beep System...

Page 10: ...LATION Mount Thermostat Align the 4 tabs on the subbase with corresponding slots on the back of the thermostat then push gently until the thermostat snaps in place On the back of the thermostat insert...

Page 11: ...ng Use the or key to select the current day of the week Press NEXT STEP The current hour is flashing Use the or key to select the current hour When using 12 hour time make sure the correct a m or p m...

Page 12: ...ime period Note If you want the fan to run continuously during this time period select ON with the FAN key Press NEXT STEP The setpoint temperature is flashing Use the or key to make your setpoint sel...

Page 13: ...EXT STEP Repeat steps 4 thru 7 for Monday LEAVE time period for Monday RETURN time period and for Monday SLEEP time period PROGRAMMING THE THERMOSTAT 13 1 2 3 4 5 6 7 8 Repeat steps 4 thru 7 for the r...

Page 14: ...C to 32 C 1 amp per terminal 1 5 amp maximum all terminals combined 1 F Heating is adjustable from 0 4 F to 2 0 F Cooling is adjustable from 0 4 F to 2 0 F 18 to 30 VAC NEC Class II 50 60 Hz for hard...

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