White Rodgers 1F95-0680 Installation, Wiring Connections, Remove Old Thermostat, Battery Location

INSTALLATION

!WARNING

Thermostat installation and all components of the control system shall conform to Class II circuits per the NEC code.

Remove Old Thermostat

Before removing wires from old thermostat, mark wires for terminal identifi cation so the proper connections will be made to the new thermostat.

Installing New Thermostat

1.Pull the thermostat body off the thermostat base. Forcing or prying on the thermostat will cause damage to the unit.

2.Place base over hole in wall and mark mounting hole locations on wall using base as a template.

3.Move base out of the way. Drill mounting holes. If you are using existing mounting holes and the holes drilled are too large and do not allow you to tighten base snug- ly, use plastic screw anchors to secure the base.

4.Fasten base snugly to wall using mounting holes shown in Figure 1 and two mounting screws. Leveling is for appearance only and will not affect thermostat operation.

5.Connect wires to terminal block on base using appropriate wiring schematic.

6.Push excess wire into wall and plug hole with a fi re re- sistant material (such as fi berglass insulation) to prevent drafts from affecting thermostat operation.

7.Carefully line the thermostat up with the base and snap into place.

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.

To replace batteries, set system to OFF, remove thermostat from wall and install the batteries in the rear along the top of the thermostat (see Figure 1). For best results, use a premi- um brand "AA" alkaline battery such as Duracell® or Ener- gizer®. If the home is going to be unoccupied for an extended

period (over 3 months) and is displayed, the batteries should be replaced before leaving.

Power Stealing Switch

This thermostat is designed for 24 VAC power to be hard- wired via a common connection to the C terminal with battery back-up. The thermostat also has the capability to be battery powered with the battery power supplemented by Power Stealing to extend the battery life. Powered only by the two "AA" batteries the expected battery life is about one year. With battery power supplemented by the Power Stealing circuits the battery life can be extended up to fi ve years. The supplemental power is derived from the Heating (W) and/or Cooling (Y) circuits. The thermostat will utilize either one or both of these circuits to supplement the battery power. The thermostat "steals" power from these circuits when the circuit is not active (calling for heating or cooling).

The Power Stealing switches are defaulted to the ON position. If the thermostat is hardwired with "C" common connection, both switches should be moved to the OFF position. If the thermostat is battery powered and the heating or cooling sys- tem does not cycle, indicating the system is not compatible, the switch for the circuit, heating or cooling, experiencing the incompatibility should be moved to the OFF position.

Figure 1 – Thermostat Base Multi-Stage 1F95-0680

Mounting	Mounting
Hole	Hole
Place Level	Place Level
across Mounting Tabs	across Mounting Tabs
(for appearance only)	(for appearance only)
Rear view of thermostat
	2 "AA" Batteries
	Power Stealing
	Switches

WIRING CONNECTIONS

Refer to equipment manufacturers' instructions for specifi c system wiring information. After wiring, see CONFIGURA- TION section for proper thermostat confi guration.

Wiring diagrams shown are for typical systems and describe the thermostat terminal functions.

	TERMINAL DESIGNATION DESCRIPTIONS
Terminal Designation	Description
O/B	Changeover valve for heat pump energized constantly in cooling and off/heating
Y2	2nd Stage Compressor
Y	Compressor Relay
G	Fan Relay
RC	Power for Cooling
RH	Power for Heating
C	Common wire from secondary side of cooling (Optional). Required for fault indication, continuous back-
	light operation or remote temperature sensor operation 6 Powered closed 3rd wire for 3-wire zone valve
W/E	Heat Relay/Emergency Heat Relay (Stage 1) (3rd Stage Heat in HP2)
W2	2nd Stage Heat (4th Stage Heat in HP2)
-	Common (DC) for wired remote temperature sensor
S	Frequency signal from remote temperature sensor
+	Power (DC) to remote temperature sensor
A1	Output energized in occupied (Morn, Day, and Eve periods)
L	Compressor diagnostic indicator for systems with diagnostic connection typically found on Heat pump
	systems or with Copeland's Comfort Alert

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