FAN/LIMIT
FAN AND LIMIT CONTROLS FOR
UNIVERSAL REPLACEMENT
WARM AIR
CONTROLS
Single Element Type for Applications with Narrow Space Limitations.
Regulates Fan or Blower Operation & Acts as High Limit Safety Control
FEATURES
•
•
•
•
•
Slotted mounting holes for easy installation.
Long terminal screws for wiring — Junctions can be made on terminal block.
Dial has individual pointers for fan cut-in and cut-out settings.
Removable solid copper jumper between fan and limit switches.
Summer fan switch for ventilation without changing control settings. Has same fan
and limit switch mechanism.
FURNACE
5D51-35
SPECIFICATIONS
Agency . . . . . . . . . . . . . . . . . . . . . . . . . . .
U.L. recognized and C.S.A. certified
Dimensions. . . . . . . . . . . . . . . . . . . . . . . . 2.9”W x 4.3”H x .6”D
Switch
Action
Close on Rise
Open on Rise
Full
Electrical
Rating
HT
See page 46
Model
Number
5D51-35
5D51-90
5D51-78
Element
Length
5”
8”
”
Description
Fan
Limit
Range
Differential
50 to 265°F
Adjustable
(0 to 29°C) 5°F minimum
00 to 300°F
Fixed 25°F
(38 to 49°C)
Motor Rating
(Full Load)
120 VAC
240 VAC
Valves and
Relays
24 VAC
0.3-12v DC
14.0A
0.0A
7.0A
6.0A
5.6A
6.0A
—
.0A
HTV
See page 46
BOARD MOUNT LIMIT CONTROLS
/
2
”
Bimetal Disc with Ranges for Your System Needs
FEATURES
• Proven reliability in a compact, versatile, cost-effective design.
• Provides high-speed contact separation.
• OEM replacement for competitive models.
?
Model
Number
3L09-1
3L09-2
3L09-3
3L09-4
3L09-5
3L09-6
3L09-7
3L09-8
3L09-9
3L09-10
3L09-11
3L09-12
3L09-13
3L09-14
2
2
2
2
2
2
2
2
2
2
2
2
A
C
C
B
A
B
C
B
B
B
A
B
40/00
70/30
40/0
50/30
60/40
70/30
75/45
80/60
90/70
200/60
20/70
220/80
240/20
250/20
TECHNICAL HELP
Dimension drawings and specifications
. . . . . . . . . . . . . . . . . . See pages 287-289
Figure Construction Opens/
(pages
(pages
Closes
Length TOD
287-289)
287-289)
(°F)
(in inches) Type
.87
.87
3.2
3.2
3.2
3.2
3.2
3.2
3.2
3.2
3.2
3.2
3.2
3.2
36T
36T
36T
36T
36T
36T
36T
36T
36T
36T
36T
36T
36T
36T
TOD
Style
62700
62708
6270
62703
62706
6270
627
6274
6275
6278
6279
62722
62723
62725
Model
Number
3L09-15
3L09-16
3L09-17
3L09-18
3L09-19
3L09-20
3L09-21
3L09-22
3L09-23
3L09-24
3L09-25
3L09-26
3L09-27
3L09-28
Figure Construction Opens/
(pages
(pages
Closes
Length TOD
287-289)
287-289)
(°F)
(in inches) Type
2
3
3
3
3
3
4
4
4
4
4
5
5
6
A
A
A
B
B
B
A
A
A
B
B
260/230
50/30
250/225
55/25
75/45
240/20
50/30
60/40
70/50
90/70
200/80
80/60
220/200
20/80
3.2
3.2
3.2
7.2
7.2
7.2
3.2
3.2
3.2
3.2
3.2
.87
.87
3.2
36T
36T
36T
36T
36T
36T
36T
36T
36T
36T
36T
36T
36T
36T
TOD
Style
62727
62704
62726
62705
6272
62724
62702
62707
62709
6276
6277
6273
6272
62720
88
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