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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. 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 32
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. 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.
HEATING/COOLING
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. 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.
■
Mount to standard 2 x 4" vertical box
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.
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.
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.
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.
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.
NOS. 2E831 AND 2E832
Bimetal sensor element and long-lasting Micro
Switch
™
mechanism. Thermostats include ther-
mometer and locking cover. No. 2E832 has
Positive Off position.