Installation, Start-Up, and
Operating Instructions
Part Number 33CSSP2-WC
IMPORTANT: Read entire instructions before starting
the installation.
SAFETY CONSIDERATIONS
Read and follow manufacturer instructions carefully. Fol-
low all local electrical codes during installation. All wiring
must conform to local and national electrical codes. Im-
proper wiring or installation may damage thermostat.
Recognize safety information. This is the safety alert sym-
bol
. When the safety alert symbol is present on equip-
ment or 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 sym-
bol. DANGER identifies the most serious hazards which will
result in severe personal injury or death. WARNING signi-
fies a hazard which could result in personal injury or death.
CAUTION is used to identify unsafe practices which would
result in minor personal injury or property damage.
GENERAL
The commercial, programmable thermostats are wall-
mounted, low-voltage thermostats which maintain room tem-
perature by controlling the operation of an HVAC (heating,
cooling and ventilation) system. Separate heating and cool-
ing set points and auto-changeover capability allow occu-
pied and unoccupied programming for energy savings.
All thermostats allow up to 4 time/temperature settings to
be programmed per 24-hour period. Each thermostat stores
programs for 3 different days (Saturday, Sunday, and Mon-
day through Friday). Batteries are not required. During power
interruption the internal NEVERLOST™ memory stores pro-
grammed schedules for an unlimited time while the clock
continues to run for at least 48 hours.
The thermostat can be configured to accept several
different equipment configurations, including heat pump
operation.
NOTE: The thermostat is not factory-configured for use in
heat pump applications. The advanced setup must be per-
formed to configure the thermostat for use with heat pump
units.
INSTALLATION
Select Thermostat Location —
The thermostat should
be mounted:
• approximately 5 ft from the floor
• close to or in a frequently used room, preferably on an
inside partitioning wall
• on a section of wall without pipes or ductwork
• where temperature operating limits are within 41 to 104 F
(5 to 40 C)
• where humidity operating range is within 0 to 95% rela-
tive humidity, non-condensing
The thermostat should NOT be mounted:
• close to a window, on an outside wall, or next to a door
leading to the outside
• where exposed to direct light and heat from a lamp, the
sun, a fireplace, or any other temperature-radiating object
which may cause a false reading
• close to or in direct airflow from supply registers or return-
air grilles
• in areas with poor air circulation (such as behind a door or
in an alcove)
Install Thermostat
Before installing thermostat, turn off all power to the
unit. There may be more than one power disconnect.
Electrical shock can cause injury or death.
1. Turn off all power to unit.
2. If an existing thermostat is being replaced:
a. Remove existing thermostat from the wall.
b. Disconnect wires from existing thermostat. Do not
allow wires to fall back into the wall. As each
wire is disconnected, record wire color and terminal
connection.
c. Discard or recycle old thermostat.
NOTE: Mercury is a hazardous waste and must be
disposed of properly.
3. Remove the thermostat cover from wall plate (mount-
ing base) to expose mounting holes. See Fig. 1.
WIRING
TERMINAL
BLOCK
HOLE FOR
WIRING
MOUNTING
HOLE
MOUNTING
HOLE
C
Y1
W2
G
R
W1
B
O
Y2
3 1/8"
3 1/8"
1"
Fig. 1 — Thermostat Mounting and Wiring
Debonair™
33CS
Commercial Programmable Thermostat
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 4
Tab 11a 13a
PC 111 Catalog No. 533-346 Printed in U.S.A. Form 33CS-31SI Pg 1 2-99 Replaces: New
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