T1- -PAC
T1- -PHP
LEGACY LINE- - RNC
PROGRAMMABLE THERMOSTATS
Legacy Line- -RNC Series Programmable Thermostat
NOTE: Read the entire instruction manual before starting the
installation
TABLE OF CONTENTS
SAFETY CONSIDERATIONS
INTRODUCTION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLATION CONSIDERATIONS
INSTALLATION
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Step 1 — Thermostat Location
Step 2 — Install Thermostat
Step 3 — Set Thermostat Configuration
Step 4 — Understand Thermostat Operation
Step 5 — Check Thermostat Operation
WIRING DIAGRAMS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SAFETY CONSIDERATIONS
Read and follow manufacturer instructions carefully. Follow all
local electrical codes during installation. All wiring must conform
to local and national electrical codes. Improper wiring or
installation may damage thermostat.
Recognize safety information. This is the safety- -alert symbol
When you see this symbol on the equipment and in the instruction
manual, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, and
CAUTION. These words are used with the safety- -alert symbol.
DANGER identifies the most serious hazards which will result in
severe personal injury or death. WARNING signifies a hazard
Installation Instructions
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .
which could result in personal injury or death. CAUTION is used
to identify unsafe practices which may result in minor personal
injury or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability, or
operation.
There are two Legacy Line- -RNC Series programmable thermostat
models, one for AC applications and one for HP applications. Both
are dual powered, operating from either 24VAC or two alkaline
AA batteries. Configuration and program schedules are stored in
non- -volatile memory, preserving this information during power
loss and battery removal. Features include simplified 5/2
programming, large backlit display, and modern styling.
The AC model provides one stage of heating and one stage of
cooling.
The HP model provides two stages of heating and one stage of
cooling.
A07109
INSTALLATION CONSIDERATIONS
AC Operation
For 24VAC operation, both the R and C wires must be connected
to the 24VAC power source. Batteries are not needed.
Battery Operation
PAGE
When batteries are used, the common (C) connection is not needed,
saving a wire, and eliminating 24VAC operation. The thermostat
1
continues to operate in the event of a power failure. Battery life is
1
one year. A "low battery" reminder tells the homeowner when it is
1
time to replace the batteries. When connected without the common
1
wire, the thermostat will not operate without batteries. Continuous
backlighting is not available.
1
Both Battery and AC Operation
2
If both batteries and 24VAC operation are used (batteries installed
2
and the common wire connected), and indefinite clock operation
2
are provided, the battery will be used only during AC power loss,
extending battery life to nearly its shelf life.
3
A jumper has to be properly set for backlight operation. J2 should
4
be set in the "AC" position when the thermostat is operated from
24VAC. J2 should be set in the "BAT" position when the
thermostat is operated from batteries. The thermostat will continue
to operate if J2 is not in the correct position or not connected.
However, the backlight will not operate.
Step 1 — Thermostat Location
.
Thermostat should be mounted:
Approximately 5 ft (1.5m) from floor.
S
Close to or in a frequently used room, preferably on an
S
inside partitioning wall.
On a section of wall without pipes or duct work.
S
INTRODUCTION
INSTALLATION