Product Overview

2
Specifications
Supply Voltage 24 VAC (+20/–15%), Class 2, or
14 to 35 VDC (for full output;
@ 9.1 VDC thermostat is fully
functional except that AO1
and AO2 max. output voltage
is reduced to about 5.3 VDC)
Supply Power 1 VA (VAC) or 0.5 W (VDC)
Temperature Sensor 10K ohm Type II thermistor
with ±0.36° F (±0.2° C) accuracy
Ext. Input (AI1) Analog Input (10K ohm pull-
up resistor for Type III therm-
istor as optional changeover
sensor—or a contact to initiate
setback)
Outputs (AO1/AO2) (Adjustable span) 0 to 12 VDC
(10K ohm max. load)
Output Limits/Span Minimum, maximum, and
auxiliary limits adjustable 0
to 12 VDC (defaults min. = 0,
max. = 12, aux. = 0)
Setpoint Range 55 to 85° F (13 to 30° C), with
default 74° (for cooling or 70°
for heating)
Changeover Adjustable from 55 to 85° F,
with 77° F default
Deadband M
inimum setpoint differential
adjustable 1 to 10° F (0.5 to
5.5° C), with default of 2° F
Proportional Band Adjustable from 1 to 10° F (0.5
to 5.5° C), with 2° F default
Integral Time 0 to 60 minutes; default seing
is 30; 0 = cancel integral action
Osets Room temperature oset
(adjustable ±5° F) and standby
setback oset (adjustable
1 to
10° F, default 2° F, does not
apply to morning warm-up)
Display Multifunctional LCD, 1.88 x
1.25 inches (48 x 32 mm) with
temperature continuously up-
dated (can be blanked); heat/
cool icons and other informa-
tion displayed when relevant
Connector Type Wire clamp terminals, 16 to 26
AWG
Weight 4.2 ounces (119 grams), in-
cluding backplate
Material Light almond or white ame-
resistant plastic
Mounting Thermostat secured to back-
plate by two concealed screws;
backplate mounts to vertical 2
x 4 inch standard handy box;
mounts to most other boxes
with an HMO-1161 wall plate
Approvals UL 873 Temperature Indicating
and Regulating Equipment;
FCC Class B, Part 15, Subpart
B and complies with Canadian
ICES-003 Class B; SASO PCP
Registration KSA R-103263;
CE compliant
Environmental Limits
Operating 32 to 140° F (0 to 49° C)
Humidity 0 to 95% RH, non-condensing
Shipping –40 to 160° F (–40 to 71° C)
~
T T
AI1
AO1
AO2
SET
POINT
A
C
B
D
E
A 3.25 in. 83 mm
B 0.88 in. 22 mm
C 5.16 in. 116 mm
D 3.25 in. 83 mm
E 0.15 in. dia. 3.81 mm dia.