Installation Guide for Copeland 1E30N-910 Vertical Snap Action Thermostat

Quick Guide

This guide provides instructions for installing and operating the Copeland 1E30N-910 vertical snap action thermostat. Before beginning, ensure you have the necessary tools and have disconnected power to the heating system to prevent electrical shock or equipment damage. The most critical adjustments include proper wiring according to the terminal cross-reference and setting the heat anticipator to match your furnace's current rating.

Preparations

Before starting the installation, ensure you have the following tools available:

• Power drill
• Flat blade screwdriver
• Wire cutter/stripper

Removing Old Thermostat

To remove your existing thermostat:

1. Disconnect electrical power to the system at the main fuse or circuit breaker.
2. Remove the cover (may be snap-on or hinge type).
3. Remove the base by unscrewing the mounting screws.
4. Label each wire with the terminal designation as you remove it from the old subbase.

Mounting and Wiring

Warning: Do not short out terminals on the gas valve or primary control to test. Short or incorrect wiring will damage the thermostat and could cause personal injury or property damage.

1. Remove the base from the subbase or wallplate.
2. Mount the subbase or wallplate to the wall using the provided screws.
3. Attach wires to the appropriate terminals.
4. Gently push excess wire back into the wall opening and plug the hole with fire-resistant material (such as fiberglass insulation) to prevent drafts from affecting thermostat operation.
5. Mount the thermostat base to the subbase or wallplate using the three captive screws.

Setting Heat Anticipator

The heat anticipator must be set to match the current rating stamped on your main heating control.

• Move the pointer counterclockwise to lengthen heating system cycles.
• Move the pointer clockwise to shorten heating system cycles.
• Adjustments should not be greater than 1/2 marking at a time.
• For millivolt operation, rotate the contact arm to the Millivolt Link.

Operation

After power is turned on, use the system switch to select heating or to turn the heating system off.

Specifications

• Switch Rating: 24 VAC (30 VAC max.)
• Heating: 0.15 to 1.2 Amps
• Anticipator Rating: Adjustable from 0.15 to 1.2 Amps
• Temperature Range: 50°F to 90°F (10°C to 32°C)
• Operating Humidity Range: 0 – 90% noncondensing

Troubleshooting

If you experience issues, check the following:

• No Heat/No Fan: Check for a blown fuse, tripped circuit breaker, or if the furnace power switch is OFF. Ensure the furnace blower compartment door is properly installed.
• Intermittent Heat: Check for a furnace lock-out condition.
• Heat or Fan Runs Constantly: Check for a short in the wiring or thermostat. Ensure wires are neatly looped under terminals.
• Thermostat Setting and Thermometer Disagree: The thermometer can be adjusted using a standard slotted screwdriver on the pointer screw inside the front cover.