Pro1 Technologies T905 Non-Programmable Thermostat Installational Manual

Contents hide

1 Pro1 Technologies T905 Non-Programmable Thermostat

1.1 Specifications

2 Installation Tips

3 Getting to know your thermostat

Pro1 Technologies T905 Non-Programmable Thermostat

Pro1 Technologies

P.O. Box 3377
Springfield, MO 65808-3377 Toll-Free: 888-776-1427
Web: www.pro1iaq.com
Hours of Operation: M-F 9 AM – 6 PM Eastern

Thermostat Application Guide

Description
Gas or Oil Heat	Yes
Electric Furnace	Yes
Heat Pump (No Aux. or Emergency Heat)	Yes
Heat Pump (With Aux. or Emergency Heat)	Yes
Multi-Stage Systems	Yes
Heat Only Systems	Yes
Heat Only Systems – Floor or Wall Furnace	Yes
Cool Only Systems	Yes
Millivolt Conventional Systems	Yes
Two Transformer Systems	No

Specifications

The display range of temperature …………….. 41˚F to 95˚F (5˚C to 35˚C)
The control range of temperature……………….44˚F to 90˚F (7˚C to 32˚C)
Load rating……………………………………………………..1 amp per terminal, 1.5 amp maximum all terminals combined
Swing (cycle rate or differential) ……………….. Heating is adjustable from 0.2˚ to 2.0˚
Cooling is adjustable from 0.2˚ to 2.0˚
Power source …………………………………………………18 to 30 VAC, NEC Class II, 50/60 Hz for hardwire
Battery power from 2 AA Alkaline batteries
Operating ambient …………………………………….. 32˚F to +105˚F (0˚C to +41˚C)
Operating humidity …………………………………… 90% non-condensing maximum
Dimensions of thermostat ………………………… 4.7”W x 4.4”H x 1.1”D

Power Type

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

A trained, experienced
the 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.

Installation Tips

Wall Locations

The thermostat should be installed approximately 4 to 5 feet above the floor. Select an area with average temperature and good air circulation.

Subbase Installation

Horizontal Mount
Vertical Mount

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.

Battery Installation
Battery installation is recommended even if the thermostat is hardwired (C terminal connected). When the thermostat is hardwired and batteries are installed, the thermostat will activate a compressor delay of 5 minutes when the thermostat detects a power outage from the hardwired power supply.

About The Badge

All of our thermostats use the same universal magnetic badge. Visit the company website to learn more about our free private label program. Gently slide a screwdriver into the bottom edge of the badge. Gently turn the screwdriver counter clockwise. The badge is held on by a magnet in the well of the battery door. The badge should pry off easily. DO NOT USE FORCE.

Getting to know your thermostat

LCD
Glow in the Dark Light Button Setpoint Buttons
Fan Button
System Button
Menu Button

Important
The low battery icon is displayed when the AA battery power is low. Whenever the thermostat detects low battery voltage from the AA batteries, the low battery icon will begin flashing on the screen for 21 days (if the batteries are not changed). If the batteries are not changed 22 days after the thermostat detects low battery voltage, the thermostat screen will only show the flashing battery icon until the buttons are pressed. If the batteries are not changed 43 days after the thermostat detects low battery voltage, the thermostat screen will only show the flashing battery icon until buttons are pressed and the set points will offset to 85°F/29°C in cooling and 55°F/13°C in heating. At this stage, set point changes can be made temporarily but, the set points will change back to defaulted values after a 4-hour period. The thermostat will continue to perform this low battery flashing, temperature offset condition until the internal voltage threshold is reached. When the thermostat internal voltage threshold is reached, all relays will be opened and the thermostat will become inoperable until new batteries are installed.

Days of the week and time
Indicates the current room temperature
Displays the user selectable setpoint temperature
Hold is displayed when thermostat program is permanently overridden.
System Operation Indicators: The compressor delay is active if these are flashing.
Programmable Time Periods: Residential uses 4 time periods – WAKE, RETURN, LEAVE and SLEEP.
Program Menu Options: Shows different options during programming.
Low Battery Indicator: Replace batteries when this indicator is shown.
Clean Display: Pressing CLEAN DISPLAY will allow 30 seconds to clean the display. The keys will be inoperable during this time. CLEAN will appear if your contractor has programmed a filter change reminder. Press and hold CLEAN when filter has been replaced to reset the filter change reminder timer.

Wiring

Caution: Electrical Hazard Failure to disconnect the power before beginning to install this product can cause electrical shock or equipment damage.

If you are replacing a thermostat, make note of the terminal connections on the thermostat that is being replaced. In some cases, the wiring connections will not be color coded. For example, the green wire may not be connected to the G terminal.
Loosen the terminal block screws. Insert wires then retighten terminal block screws.
Place non-flammable insulation into the wall opening to prevent drafts. All components of the control system and the thermostat installation must conform to Class II circuits per the NEC Code. Do not overtighten terminal block screws, as this can damage the terminal block. A damaged terminal block can keep the thermostat from fitting on the sub base correctly or cause system operation issues.

Terminal Designations

R	Transformer Power	Transformer Power
C	Transformer Common	Transformer Common
B	Changeover Valve Energized in HEAT	Energized in HEAT
O	Changeover Valve Energized in COOL	Energized in COOL
G	Fan Relay	Fan Relay
W/E	First Stage of Emergency HEAT	First Stage of HEAT
W2	Second Stage of HEAT/ EMERGENCY HEAT	Second Stage of HEAT
Y	First Stage of HEAT and COOL	First Stage of COOL

Wiring Tips

RH & RC Terminals For single transformer systems, leave the jumper wire in place between RH and RC. Remove jumper wire for two transformer systems.
Heat Pump Systems If wiring to a heat pump, use a small piece of wire (not supplied) to connect terminals W and Y.
RH Transformer power for heating
RC Transformer power for cooling
G Fan relay
Y Compressor relay

Wiring Diagrams

Power supply
Factory-installed jumper. Remove only when installing on 2-transformer systems.
Use either O or B terminals for changeover valve.
Use a small piece of wire (not supplied) to connect W and Y terminals.
Optional 24 VAC common connection when thermostat is used in battery power mode.

Technician Setup

Press MENU button
Press and hold TECHNICIAN SETUP button for 3 seconds. This 3 second delay is designed so that homeowners do not accidentally access the installer settings.
Configure the installer options as desired using the table below.
Use the or keys to change settings and the NEXT STEP or PREV STEP key to move from one step to another. Note: Only press DONE key when you want to exit the Technician Setup options.

Programming

Set Time

Press the MENU button
Press SET TIME
Day of the week will be flashing. Use the key to select the current day of the week.
Press Next Step.
The current hour is flashing. Use the key to select the current hour. When using 12-hour time, make sure the correct a.m. or p.m. choice is selected.
Press Next Step.
Minutes are now flashing. Use the key to select current minutes.
. Press DONE when completed

Set Program Schedule

Select HEAT or COOL with the system key. Note: You have to program heat and cool each seperately.
Press the MENU button (If menu does not appear first press RUN SCHED
Press SET SCHED. Note: Monday-Friday is displayed and the WAKE icon is shown. You are now programming the wake time period for the weekday setting.
Use the key to make your time selection for the weekday WAKE time period. If you want the fan to run continuously during this time period, select ON with the FAN key.
Then use the key to make your setpoint selection for the weekday wake period.
Press Next Step 7. Repeat steps 4 thru 6 for weekday LEAVE time period, RETURN time period, and SLEEP time period.

Saturday: Repeat steps 4 thru 6 for the Saturday WAKE time period, LEAVE time period, RETURN time period, and for the Saturday SLEEP time period.

Sunday: Repeat steps 4 thru 6 for the Sunday WAKE time period, LEAVE time period, RETURN time period, and for the Sunday SLEEP time period.

Weekday:

Select HEAT or COOL using the system key. Note: You have to pro gram heat and cool each separately.
press MENU
Press SET SCHED. Note: Monday is displayed and the WAKE icon is shown. You are now programming the WAKE time period for that day.
use the key to make your time selection for that day’s WAKE time period. Note: If you want the fan to run continuously during this time period, select ON with the FAN key.
Then use the key to make your setpoint selection for that day’s WAKE period.
Press Next Step.
Repeat steps 4 through 6 for that day’s LEAVE time period, RETURN time period, and that day’s SLEEP time period.

All of our programmable thermostats are shipped with an energy saving pre-program. Your thermostat can be programmed to have all the weekdays the same, a seperate program for Saturday, and a seperate program for Sunday. There are four time periods for each program (WAKE, LEAVE, RETURN, SLEEP