White Rodgers 4PU49 Leaflet
3820
HVAC CONTROLS
Line Voltage Thermostats
No.
6WY24
No.
4PU49
No.
2E158
No.
1UHG9
No.
1TKF9
■
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.
lator motors, motor starters, and valves. All
units UL Listed except No.
4NE56
. All are CSA
Certified except Nos.
4NE56
and
2E503
.
Note: For amp ratings, see www.grainger.com.
Line Voltage Thermostats
Switch
Control
Diff.
Pilot
Dimensions (In.)
Mfr.
Item
$
Shpg.
Type
Range (°F)
(°F)
Duty (VA)
H
W
D
Brand
Model
No.
Each
Wt.
Heat Only Thermostats
DPST
50 to 90
3
—
4
3
⁄
4
2
3
⁄
4
2
3
⁄
4
Dayton
—
4PU48
16.64
0.8
SPST
50 to 90
0
125
5
3
1
⁄
4
2
3
⁄
4
Invensys
801
1TKF9
11.09
0.6
SPST
55 to 85
2
—
6
2
3
⁄
4
2
1
⁄
2
White-Rodgers
152-9
2E369
106.20
1.8
SPST
55 to 95
2
—
6
2
3
⁄
4
2
1
⁄
2
White-Rodgers
152-10
2E477
125.15
1.8
Cool Only Thermostat
SPST
50 to 90
0
125
5
3
1
⁄
4
2
3
⁄
4
Invensys
803
1TKG1
16.65
0.6
Heating/Cooling Thermostats
SPDT
50 to 90
2h/4c
—
4
3
⁄
4
2
3
⁄
4
2
3
⁄
4
Columbus Electric
ETD-5S-6S
2E158
16.77
0.5
SPDT
0 to 120
1
125
5
3
1
⁄
8
1
5
⁄
8
Honeywell
T6051A1016
2E517
94.75
1.0
SPDT
44 to 86
2
125
4
1
⁄
2
2
15
⁄
16
1
1
⁄
2
Honeywell
T651A3018
4NE56
59.65
0.5
SPDT
40 to 90
3h/3.5c
—
4
11
⁄
16
3
2
7
⁄
8
Johnson Controls
T26T3E
2E503
87.70
0.9
SPDT
55 to 90
1.5
125
5
1
⁄
8
2
7
⁄
8
2
1
⁄
8
White-Rodgers
1A10-651
2E734
58.95
0.7
SPDT
36 to 90
1.5
125
5
1
⁄
8
2
7
⁄
8
2
1
⁄
8
White-Rodgers
1A16-51
3TZ43
86.00
0.7
SPDT
55 to 95
3
—
6
2
3
⁄
4
2
1
⁄
2
White-Rodgers
179-1
2E997
117.75
1.8
Heating/Cooling Fan Coil Thermostats
(2) SPST
40 to 90
+/- 2
—
4
1
⁄
4
3
5
⁄
8
1
1
⁄
4
Dayton
—
1UHE3
26.50
0.3
(2) SPST
40 to 90
+/- 2
—
4
1
⁄
4
3
5
⁄
8
1
1
⁄
4
Dayton
—
1UHE4
26.50
0.3
SPST
50 to 90
+/-1.36
100
3
11
⁄
16
4
3
⁄
16
1
7
⁄
16
Honeywell
T6575C1001
1RZY7
81.30
0.7
SPDT
55 to 95
—
—
4
5
⁄
8
4
15
⁄
16
1
5
⁄
16
Honeywell
T4039M1004
2E858
115.00
0.7
SPDT
36 to 90
1.5
—
4
1
⁄
2
4
1
⁄
2
2
1
⁄
4
White-Rodgers
1A11-2
1N172
91.50
1.1
Thermostat and Humidistat/Dehumidistat
(2) SPST
41 to 95
+/-1
—
4
1
⁄
4
3
5
⁄
8
1
1
⁄
4
Dayton
—
1UHG9
53.25
0.3
Subbase
Heating-Cooling Subbase for use with Nos.
2E734
and
3TZ43
White-Rodgers
S29-21
2E735
34.75
0.4
HEAT ONLY
No.
No.
2E477
has locking case to prevent tamper-
ing. No.
4PU48
has positive Off position.
COOL ONLY
Single line break type thermostat is for cooling
only. UL Listed.
Single line break type thermostat is for cooling
only. UL Listed.
HEATING/COOLING
No.
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.
HEATING/COOLING FAN COIL
Provide control of one or two line voltage valves.
3-speed fan control. No.
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.
THERMOSTAT AND HUMIDISTAT/DEHUMIDISTAT
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.
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.
■
Mount to standard 2 x 4" vertical box
For precise control of resistive-rated electric
heating equipment. All units are UL Listed;
Nos.
heating equipment. All units are UL Listed;
Nos.
6WY23
and
6WY24
are C-UL Listed.
All are CSA Certified.
Electric Heat Line Voltage Thermostats
Resistive Control
Thermostat
Switch
Sensor
Contact Ratings
Range
Differential
Dimensions (In.)
Mfr.
Item
$
Shpg.
Type
Type
Type
120V (A)
240V (A)
(°F)
(Deg. F)
Color
H
W
D
Brand
Model
No.
Each
Wt.
Bimetal Operated
SPST
Bimetal
22
22
50 to 90
3
White
4
3
⁄
4
2
3
⁄
4
2
3
⁄
4
Dayton
—
4PU49
20.01
0.7
5+1+1 Programmable
SPST
NTC Thermistor
15
—
41 to 95
+/- 1
White
4
1
⁄
4
3
5
⁄
8
1
1
⁄
4
Dayton
—
1UHG4
45.00
0.3
Electronic
SPST
NTC Thermistor
15
—
41 to 95
+/- 1
White
4
1
⁄
4
3
5
⁄
8
1
1
⁄
4
Dayton
—
1UHG1
62.50
0.3
Electronic
SPST
NTC Thermistor
15
—
50 to 90
+/- 2
White
4
1
⁄
4
3
5
⁄
8
1
1
⁄
4
Dayton
—
1UHE8
22.50
0.3
Analog
SPST
Vapor-filled dual-
diaphragm
22
22
50 to 80
+/- 2
White
4
1
⁄
2
2
7
⁄
8
2
5
⁄
8
Honeywell
T4398A1021
4CZ52
23.51
0.6
Analog
SPST
Thermistor
—
16
50 to 80
+/- 1
White
4
3
⁄
4
3
1
⁄
8
2
5
⁄
8
Honeywell
T4800A1015
4CZ53
59.85
0.7
Digital Nonprogrammable
DPST
Thermistor
—
15
40 to 86
+/- 1
White
4
7
⁄
8
2
3
⁄
4
7/8
Honeywell
TL7235A1003
6WY23
54.55
0.8
Digital Programmable
DPST
Thermistor
—
15
40 to 86
+/- 1
White
4
7
⁄
8
2
3
⁄
4
7/8
Honeywell
TL8230A1003
6WY24
59.80
0.8
Electric Heat, Slide Action
SPST
Bimetal
22
22
40 to 80
+/- 3
Beige
4
17
⁄
32
2
29
⁄
32
1
15
⁄
16
Honeywell
T498A1778
2E831
30.55
0.5
Electric Heat, Slide Action
DPST
Bimetal
22
22
40 to 85
+/- 3
Brushed
Gold
4
17
⁄
32
2
29
⁄
32
1
15
⁄
16
Honeywell
T498B1512
2E832
36.65
0.5
Electric Heat, Slide Action
SPST
Bimetal
22
22
40 to 85
+/- 1
Beige
4
1
⁄
2
2
3
⁄
4
1
1
⁄
4
White-Rodgers
1A65-641
4E036
29.45
0.6
Electric Heat, Slide Action
DPST
Bimetal
22
22
40 to 85
+/- 1
Beige
4
1
⁄
2
2
3
⁄
4
1
1
⁄
4
White-Rodgers
1A66-641
4E037
39.20
0.6
(*) Double pole disconnect with "Off" position which mechanically breaks both sides of line.
NO.
4CZ52
Controls both fan-forced and baseboard electric
heaters. Thermoplastic mounting base and two
6" copper lead wires.
heaters. Thermoplastic mounting base and two
6" copper lead wires.
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.
5 to 7 cycles per hour. Includes two 6" copper
lead wires.
NO.
6WY23
Shows actual temperature on large LCD. Heating
indicator confirms at a glance that the heat is
on. Backlight button and On/Off switch.
indicator confirms at a glance that the heat is
on. Backlight button and On/Off switch.
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.
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.
NOS.
2E831
AND
2E832
Bimetal sensor element and long-lasting Micro
Switch
Switch
™
mechanism. Thermostats include ther-
mometer and locking cover. No.
2E832
has
Positive Off position.