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INSTALLATION
WIRING AND MOUNTING
▲
1. To avoid electrical shock or damage to equipment,
!
disconnect power before installing this thermostat.
2. Position the three switches on back of thermostat, according
to the HVAC system being controlled and the power source.
3. Connect electrical:
• If using a mounting plate: Pull the wires out of the middle
hold of the mounting plate and adjust the plate on the wall
or junction box.
• Loosen screw terminals, insert wires into the appropriate
terminals, then re-tighten screws.
• Cap off all unused wires. All connections must be located in
the outlet box.
Conventional System Terminal Designations:
Terminal
Input/ Output
C
Input
G
Output
H2
Output
H1
Output
C1
Output
C2
Output
R
Input
Heat Pump System Terminal Designations:
Terminal
Input/ Output Description
C
Input
G
Output
E
Output
B/O
Output
Y1
Output
Y2
Output
R
Input
4. The thermostat mounts to a horizontal or vertical 2x4
junction box with the use of an accessory mounting plate, or
may be mounted directly to the wall:
• Place the 2 wall anchors into the wall.
• Fasten the thermostat with the screws provided through the
2 mounting holes. One mounting hole is accessible through
© COPYRIGHT 2009 PECO, INC. ALL RIGHTS RESERVED.
Description
Unswitched Side, 24 VAC
Fan
Stage 2 Heat
Stage 1 Heat
Stage 1 Cool
Stage 2 Cool
Switched Side, 24 VAC
Unswitched Side, 24 VAC
Fan
Auxillary or Emergency Heat
Reversing Valve
Compressor Stage 1, Heat 1 or Cool 1
Compressor Stage 2, Heat 2 or Cool 2
Switched Side, 24 VAC
the battery compartment (located under the front cover of
thermostat).
5. Place two AA alkaline batteries into the battery compartment
(located under the front cover of thermostat).
Note: In these instructions, the term "Normal Mode" refers
to the default thermostat display (i.e. when the user is not
performing any operations). The default display shows
current time, current room temperature, day of week,
event, system mode, and program selection. Pressing the
button always takes the thermostat to Normal Mode
Example of a "Normal Mode" Display
THERMOSTAT CONFIGURATION / SERVICE MENU
The installer must configure the thermostat to match the
installed heating/cooling system. The Service Menu allows the
installer to modify configuration variables that are not normally
accessed by the end user. The configuration variables are
identified by Menu Number, as listed in the "Service Menu
Functions" table.
Accessing the Service Menu
1. From the Normal Mode thermostat display, simultaneously
press the ▲ and ▼ buttons, and hold down for 5 seconds.
This takes you into the Service Menu and menu item number
"1" will be flashing.
2. Push PROG to scroll to the Service Menu item number to
be configured.
3. Push ▲ or ▼ buttons to configure the selected menu
item. The service menu number is always shown in the small
digits; selection values are shown in the larger digits or other
icons as appropriate.
Example of a "Service Menu" Display
FAN ON
P/N 69535 3220-2151 REV 0 PAGE 2
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