HVAC CONTROLS
Line Voltage Thermostats
Line Voltage Thermostats
■
Mount to standard 2 x 4" vertical box
For use with fan coils, fans, contactors, circu-
lator motors, motor starters, and valves. All
units UL Listed except No. 4NE56. All are CSA
Certified except Nos. 4NE56 and 2E503.
HEAT ONLY
No. 2E477 has locking case to prevent tamper-
ing. No. 4PU48 has positive Off position.
HEATING/COOLING FAN COIL
Provide control of one or two line voltage valves.
3-speed fan control. No. 2E858 features auto-
matic changeover heating to cooling; No. 1N172
features manual changeover heating to cooling.
COOL ONLY
Single line break type thermostat is for cooling
only. UL Listed.
HEATING/COOLING
THERMOSTAT AND HUMIDISTAT/DEHUMIDISTAT
No. 2E517 includes removable locking cover.
No. 4NE56 features a 44°F frost protection
setting. Nos. 2E734 and 3TZ43 feature two dial
stops for locking dial setting. No. 2E503 is UL
and C-UL Listed.
Features sensor Type NTC thermistor for
temperature, and resistive sensor for humidity.
LCD display. Includes screws and mounting
plate. Adjustment range 30 to 90% with a +/-
2% differential.
No. 1TKF9
Switch
Control
Diff.
Pilot
Dimensions (In.)
Mfr.
Item
No.
$
Shpg.
Wt.
Type Range (°F) (°F) Duty (VA)
H
W
D
Brand
Model
Each
Heat Only Thermostats
DPST
SPST
SPST
SPST
50 to 90
50 to 90
55 to 85
55 to 95
3
0
2
2
—
125
—
43⁄4
5
6
23⁄4
31⁄4
23⁄4
23⁄4
23⁄4
23⁄4
21⁄2
21⁄2
Dayton
Invensys
White-Rodgers
White-Rodgers
—
801
152-9
152-10
0.8
0.6
1.8
1.8
4PU48
1TKF9
2E369
2E477
16.64
11.09
106.20
125.15
ꢀ
ꢀ
—
6
Cool Only Thermostat
SPST 50 to 90
Heating/Cooling Thermostats
1TKG1
16.65
0
125
5
31⁄4
23⁄4
Invensys
803
0.6
No. 2E158
SPDT
SPDT
SPDT
SPDT
SPDT
SPDT
SPDT
50 to 90 2h/4c
0 to 120
44 to 86
—
125
125
—
125
125
—
43⁄4
5
23⁄4
31⁄8
215⁄16
3
23⁄4 Columbus Electric ETD-5S-6S
0.5
1.0
0.5
0.9
0.7
0.7
1.8
2E158
2E517
4NE56
2E503
2E734
3TZ43
2E997
16.77
94.75
59.65
87.70
58.95
86.00
117.75
1
2
15⁄8
11⁄2
Honeywell
Honeywell
T6051A1016
T651A3018
T26T3E
1A10-651
1A16-51
179-1
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
41⁄2
411⁄16
51⁄8
51⁄8
6
40 to 90 3h/3.5c
27⁄8 Johnson Controls
55 to 90
36 to 90
55 to 95
1.5
1.5
3
27⁄8
27⁄8
23⁄4
21⁄8
21⁄8
21⁄2
White-Rodgers
White-Rodgers
White-Rodgers
Heating/Cooling Fan Coil Thermostats
(2) SPST 40 to 90
(2) SPST 40 to 90
+/- 2
+/- 2
—
—
100
—
41⁄4
41⁄4
35⁄8
35⁄8
11⁄4
11⁄4
Dayton
Dayton
Honeywell
Honeywell
White-Rodgers
—
—
0.3
0.3
0.7
0.7
1.1
1UHE3
1UHE4
1RZY7
2E858
1N172
26.50
26.50
81.30
115.00
91.50
SPST
SPDT
SPDT
50 to 90 +/-1.36
55 to 95
36 to 90
311⁄16
45⁄8
43⁄16
415⁄16
41⁄2
17⁄16
15⁄16
21⁄4
T6575C1001
T4039M1004
1A11-2
ꢀ
ꢀ
ꢀ
—
1.5
No. 1UHG9
—
41⁄2
Thermostat and Humidistat/Dehumidistat
1UHG9
2E735
53.25
34.75
(2) SPST 41 to 95
+/-1
—
41⁄4
35⁄8
11⁄4
Dayton
—
ꢀ
0.3
0.4
Subbase
Heating-Cooling Subbase for use with Nos. 2E734 and 3TZ43
White-Rodgers
S29-21
Electric Heat Line Voltage Thermostats
■
NO. 4CZ52
Mount to standard 2 x 4" vertical box
Controls both fan-forced and baseboard electric
heaters. Thermoplastic mounting base and two
6" copper lead wires.
For precise control of resistive-rated electric
heating equipment. All units are UL Listed;
Nos. 6WY23 and 6WY24 are C-UL Listed.
All are CSA Certified.
NO. 6WY24
Features 7-day programming with easy, push-
button adjustment. Large LCD shows time, day,
and actual temperature. 3 preset temperature
buttons: normal, economy, and vacation or
extended absence. Features early-start switch,
On/Off switch, and backlight button.
NO. 4CZ53
Patented CoolSwitch™ technology reduces wear
on contacts and provides longer thermostat life.
5 to 7 cycles per hour. Includes two 6" copper
lead wires.
NOS. 2E831 AND 2E832
NO. 6WY23
Bimetal sensor element and long-lasting Micro
Switch™ mechanism. Thermostats include ther-
mometer and locking cover. No. 2E832 has
Positive Off position.
Shows actual temperature on large LCD. Heating
indicator confirms at a glance that the heat is
on. Backlight button and On/Off switch.
No. 6WY24
No. 4PU49
Resistive
Control
Thermostat
Type
Switch
Sensor
Type
Contact Ratings
Range Differential
Dimensions (In.)
Mfr.
Item
No.
$
Shpg.
Wt.
Type
120V (A)
240V (A)
(°F)
(Deg. F)
Color
H
W
D
Brand
Model
Each
Bimetal Operated
5+1+1 Programmable
Electronic
SPST
Bimetal
22
15
15
15
22
—
—
—
50 to 90
41 to 95
41 to 95
50 to 90
3
White
White
White
White
43⁄4
41⁄4
41⁄4
41⁄4
23⁄4
35⁄8
35⁄8
35⁄8
23⁄4
11⁄4
11⁄4
11⁄4
Dayton
Dayton
Dayton
Dayton
—
—
—
—
0.7
0.3
0.3
0.3
4PU49
1UHG4
1UHG1
1UHE8
20.01
45.00
62.50
22.50
SPST NTC Thermistor
SPST NTC Thermistor
SPST NTC Thermistor
+/- 1
+/- 1
+/- 2
ꢀ
ꢀ
Electronic
Vapor-filled dual-
4CZ52
23.51
Analog
SPST
22
22
50 to 80
+/- 2
White
41⁄2
27⁄8
25⁄8
Honeywell
T4398A1021
0.6
diaphragm
43⁄4
47⁄8
47⁄8
31⁄8
23⁄4
23⁄4
25⁄8
7/8
7/8
Honeywell
Honeywell
Honeywell
Honeywell
T4800A1015
TL7235A1003
TL8230A1003
T498A1778
ꢀ
ꢀ
ꢀ
0.7
0.8
0.8
0.5
4CZ53
6WY23
6WY24
2E831
59.85
54.55
59.80
30.55
Analog
SPST
Thermistor
Thermistor
Thermistor
Bimetal
—
—
—
22
16
15
15
22
50 to 80
40 to 86
40 to 86
40 to 80
+/- 1
+/- 1
+/- 1
+/- 3
White
White
White
Digital Nonprogrammable DPST
Digital Programmable DPST
Electric Heat, Slide Action SPST
Beige 417⁄32 229⁄32 115⁄16
Brushed
2E832
36.65
Electric Heat, Slide Action DPST
Bimetal
22
22
40 to 85
+/- 3
417⁄32 229⁄32 115⁄16
Honeywell
T498B1512
0.5
Gold
41⁄2
41⁄2
23⁄4
23⁄4
11⁄4 White-Rodgers 1A65-641
11⁄4 White-Rodgers 1A66-641
0.6
0.6
4E036
4E037
29.45
39.20
Electric Heat, Slide Action SPST
Electric Heat, Slide Action DPST
Bimetal
Bimetal
22
22
22
22
40 to 85
40 to 85
+/- 1
+/- 1
Beige
Beige
(*) Double pole disconnect with "Off" position which mechanically breaks both sides of line.
3820