Installation Instructions

WARNING

1. Disconnect power supply before making wiring connections or working on this equipment. Follow all applicable safety procedures to prevent accidental power up. Failure to do so can result in injury or death from electrical shock or moving parts and may cause equipment damage.
2. All appliances must be wired strictly in accordance with the wiring diagram furnished with the appliance. Any wiring different from the wiring diagram could result in a hazard to persons and property.
3. All wiring must be done with a wiring material having a temperature rating of at least 105°C.

IMPORTANT

1. The use of this manual is specifically intended for a qualified installation and service agency. A qualified installation and service agency must perform all installation and service of these appliances.
2. Modine manuals may contain excerpts from component supplier literature adapted for Modine products. Any accompanying component supplier literature is for general information.

Application

The Emerson 1F95-1280 is a mercury-free thermostat with damper control and an automatic heat/cool changeover option, allowing users to maintain comfortable temperatures. Seven-day programming enhances heating or cooling efficiency.

Features

The Room Programmable Thermostat includes:

• Automatic or manual fan operation.
• Automatic or manual heat/cool switching capabilities.
• Celsius or Fahrenheit temperature display.
• Copy Feature for fast programming.
• Temperature override (for temporary or continuous override).
• Automatic daylight savings setting.
• Total or partial (limited temperature range) keypad lockout with combination.
• Built-in Short Cycle equipment protection setting.
• Occupied/Unoccupied damper control.

Specifications

Contents

• Thermostat (body and base)
• 2 "AA" Alkaline batteries
• 2 mounting screws
• 2 plastic screw anchors

Installation

1. Pull the thermostat body off of the thermostat base.
   Caution: Forcing or prying on the thermostat will cause damage to the unit.
2. Place the base over the hole in the wall and mark the mounting hole locations using the base as a template. Refer to Figure 2.1 for mounting hole locations on the base.
3. Move the base out of the way. Drill mounting holes. Use plastic screw anchors (included in the installation kit) as needed.
4. Fasten the base to the wall using the mounting holes shown in Figure 2.1 and two mounting screws (included in the installation kit). Leveling is for appearance only and will not affect thermostat operation.
5. Connect wires to the terminal block on the base using the appropriate wiring schematic. For duct furnaces, see Figure 2.2. For system units, refer to the job-specific wiring diagram provided with the unit.
6. Push excess wire into the wall and plug the hole with a fire-resistant material (such as fiberglass insulation) to prevent drafts from affecting thermostat operation.
7. Carefully align the thermostat with the base and snap into place.

Wiring

Installation of wiring must conform with local building codes, or in the absence of local codes, with the National Electric Code ANSI/NFPA 70 - Latest Edition. The unit must be electrically grounded in conformance with this code. In Canada, wiring must comply with CSA C22.1, Part 1, Electrical Code.

Wiring Diagram Selection

• For duct furnaces (non-factory supplied blower): refer to Figure 2.2 for wiring.
• For system units (factory supplied blower): refer to the job-specific unit wiring diagram provided with the unit.
• For deviations to these wiring diagrams or the job-specific wiring diagrams: consult the factory.

Battery Location

(2) "AA" alkaline batteries are included in the thermostat at the factory with a battery tag to prevent power drainage. Remove the battery tag to engage the batteries.

Power Stealing Switches

The Power Stealing Switches (see Figure 2.1) should be left in the "On" position to run the thermostat off of the 24-volt transformer with a battery backup.

Configuration Menu Settings

1. From the main screen, select "Menu". Hold down "Installer Config" until it enters the installer menu.
2. On the top right of the screen, the screen number is displayed. To change the screen, use the temperature arrows on the right side of the screen. To change the settings, use the arrows on the top left.
3. Confirm the following settings are selected:
   a. SCREEN #1 - SET TO "MS2"
   b. SCREEN #2 - SET TO "ELE"
   c. SCREEN #37 - SET TO "OFF"
4. Save the settings and return to the main screen by using the "Run Schedule" selection in the lower right-hand corner.

Diagrams

Figure 1.1: Room Programmable Thermostat
This figure shows the front view of the Emerson 1F95-1280 thermostat. The display shows the current time (12:00 PM), day (Thu), and set temperature (70°F). System mode is set to 'Heat' and Fan mode is set to 'Auto'. There are '+' and '-' buttons for temperature adjustment, and a 'Menu' button. The Modine logo is at the bottom.

Figure 2.1: Thermostat Base and Rear View
This figure shows two views of the thermostat base. The top view shows the rear of the thermostat with mounting holes and the terminal block. The bottom view shows the inside of the thermostat with the battery compartment containing two AA batteries and the Power Stealing Switches.

Figure 2.2: Wiring Diagram
This diagram illustrates the wiring connections for the thermostat. It shows terminals labeled W2, Y2, W1, Y1, G, R, 24V(C), O, and B. Lines indicate connections to external components, with dashed lines representing field wiring and solid lines representing internal connections. Labels like "DENOTES DUCT FURNACE TERMINAL" and "DOTTED LINES REFER TO FIELD WIRING" provide context.