TOTALINE P474-1035 - User Manual

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Summary

Programmable 5-2 Day Digital Thermostat

Normal Operation: Manual Mode

Manual Thermostat Operation

How to set heat/cool mode, fan, and temperature manually when the program switch is OFF.

Normal Operation: Programmed Mode

Programmed Operation

How to operate the thermostat using programmed settings when the program switch is RUN.

Time Period Programming Overview

Weekday Programming: Morning and Day

Weekday Programming: Day and Evening

Weekday Programming: Evening and Night

Weekend Programming: Morning and Day

Weekend Programming: Day and Evening

Weekend Programming: Evening and Night

Time Period Programming Completion

Battery Replacement: Procedure

Summary

Programmable 5-2 Day Digital Thermostat

Normal Operation: Manual Mode

Manual Thermostat Operation

How to set heat/cool mode, fan, and temperature manually when the program switch is OFF.

Normal Operation: Programmed Mode

Programmed Operation

How to operate the thermostat using programmed settings when the program switch is RUN.

Time Period Programming Overview

Weekday Programming: Morning and Day

Weekday Programming: Day and Evening

Weekday Programming: Evening and Night

Weekend Programming: Morning and Day

Weekend Programming: Day and Evening

Weekend Programming: Evening and Night

Time Period Programming Completion

Battery Replacement: Procedure

This document is the owner's manual for the Totaline Model P474-1035 Programmable 5-2 Day Digital Thermostat.

Function Description:

The Totaline P474-1035 is a single-stage heat/cool digital thermostat designed for residential and light commercial applications. It offers programmable 5-2 day scheduling, allowing separate programs for weekdays and weekends. The thermostat is compatible with most air conditioning and heating systems, including 1-stage electric cooling and gas heating, heat pumps (without auxiliary heat control), electric heat, hydronic heat, fan coils, and PTAC units with remote capabilities. It provides both manual and programmed operation modes. In manual mode, the user can set the desired temperature and fan operation (on or auto). In programmed mode, the thermostat follows a pre-set schedule for different time periods throughout the day. The device features a large, easy-to-read, backlit digital display for clear visibility of settings and current conditions.

Important Technical Specifications:

Model Number: P474-1035
Type: Programmable 5-2 Day Digital Thermostat
Stages: 1 Stage Heat/Cool
Compatibility: Single Stage Heat Pump Compatible (does not control auxiliary heat). Works with most Air Conditioning & Heating Systems including 1 Stage Electric Cooling & Gas Heating, Heat Pump, Electric, Hydronic Heat, Fan Coils and PTAC units with remote capabilities.
Power Source:
- Batteries required for 4-wire operation.
- No batteries needed for 5-wire operation (when connected to 24V power).
Battery Type: 2 Alkaline "AA" batteries.
Display: Large, easy-to-read, backlit digital display.
Deadband Adjustment: Adjustable from 1 to 6 degrees.
Cycles/Hour Adjustment: Adjustable from 2 to 6. Also includes "d=no limit (zoning)" and "dl=d+no compressor lockout" options.
Temperature Units: Selectable between degrees Celsius (C) or Fahrenheit (F).
Backlight: Option for backlight to be always on, or to turn off 8 seconds after a button press.
FCC Compliance: Complies with Part 15 of the FCC rules, subject to two conditions: (1) device may not cause harmful interference, and (2) device must accept any interference received.
Origin: Made in China.

Usage Features:

Controls:
- Mode Switch: Allows selection between Heat, Cool, or Off.
- Fan Switch: Allows selection between Fan On (continuous operation) or Fan Auto (fan runs only with a heat or cool demand).
- Up & Down Buttons: Used to adjust desired temperature, time, day, and program settings.
- Next Button: Used to advance through programming and advanced setup screens. Pressing and holding for 5 seconds (when clock is flashing in SET mode) enters advanced setup.
- Program Switch: Has three positions:
  - RUN: Activates the programmed schedule.
  - OFF: Disables programmed operation, allowing for manual heat or cool control.
  - SET: Used for setting the clock, day, and programming the time periods.
Display Indicators:
- Day of the week: MTuWThF for weekdays, SaSu for weekends.
- Heat/Cool indicators: Show current operating mode.
- Clock Display: Shows current time.
- Time Period Indicators: Indicate active program period (Morning, Day, Evening, Night).
- Desired Set Temperature Indicator: Shows the target temperature.
- Current Room Temperature Indicator: Shows the actual room temperature.
Programming:
- 5-2 day programming with separate schedules for weekdays and weekends.
- Four time periods per day: Morning, Day, Evening, Night.
- Programming involves setting start times and desired heat/cool setpoints for each period.
- Crucially, time periods must be programmed in chronological order to ensure proper operation.
Temporary Override: In programmed operation (RUN mode), adjusting the set temperature with the Up or Down buttons will temporarily override the schedule until the next programmed time period.
Advanced Setup: Accessible by the installer, this mode allows configuration of deadband, cycles per hour, backlight behavior, and temperature units (C/F).

Maintenance Features:

Battery Replacement:
- Requires 2 Alkaline "AA" batteries.
- Batteries must be replaced at least every 12 months, or when the "Lb" (Low Battery) code appears on the display.
- The "Lb" code (Fig. 1) indicates immediate battery replacement is necessary to avoid improper operation, especially in freezing temperatures where the thermostat might fail to turn on heat.
- For 5-wire installations (24V powered), batteries are optional but recommended to maintain clock settings during power interruptions.
Opening the Thermostat for Battery Replacement:
- The housing has two screwdriver slots at the top.
- Insert a small blade screwdriver into a slot and rotate 90 degrees to release the top snaps. Repeat for the other slot.
- Separate the housing halves by pulling the top forward until pins release, then lift the bottom out.
Warranty: One-year warranty from the date of original installation, covering defects in material and workmanship. Replacement parts are provided free of charge for the part itself, but labor and other costs are excluded. The warranty is void upon reinstallation and applies only to products in their original installation location. It limits implied warranties to the duration of the express warranty. The manufacturer is not responsible for normal maintenance, faulty installation, abuse, improper servicing, electrical issues, environmental damage, non-manufacturer parts, electricity/fuel costs, or consequential damages.