24A34-2 [ETC]
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE;
| 型号： | 24A34-2 |
| 厂家： | 
ETC |
| 描述： | FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE |
| 文件： | 总5页 (文件大小：803K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
24A34 Series
Fan/Heat Sequencers
INSTALLATION INSTRUCTIONS
FAILURETO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL
INJURY AND/OR PROPERTY DAMAGE.
DESCRIPTION
The 24A34 Series Fan/Heat Sequencer gives the service tech-
nician a direct replacement for sequencing both fan and heat.
The terminal markings on the 24A34 sequencers are equivalent
to most other manufacturers’ types.
These sequencers may be wired in series, as shown in wiring
diagrams, to allow sequencing of one through seven element
furnaces.
CAUTION
!
To prevent electrical shock and/or equipment damage,
disconnect electric power to system, at main fuse or
circuit breaker box, until installation is complete.
Do not use on circuits exceeding specified voltage.
Higher voltage will damage control and could cause
shock or fire hazard.
SPECIFICATIONS
Electrical Ratings - Single Load Contact Ratings (All Models)
Resistive (Non-Inductive) Motor Ratings (Inductive)
VAC
120
240
480
Watts
3000
6000
6000
Amps
25.0
Full Load
14.0A
7.0A
Locked Rotor
Pilot Duty
125 VA
72.0A
42.0A
–
25.0
125 VA
12.5
–
480 VA
Electrical Ratings - Single Load Contact Ratings (All Models)
Timings – ON
Timings – OFF
Model
Number
Timings Switches M1-M2 M3-M4 M5-M6 M7-M8 M9-M10 M1-M2 M3-M4 M5-M6 M7-M8 M9-M10
40-110
–
–
–
–
–
–
–
24A34-1
24A34-2
1
1
1
1
2
2
4
1
1
1
2
2
3
4
5
1
1-20
–
–
–
–
30-90
–
–
–
–
–
–
–
–
–
–
1-30
–
–
40-110 40-110
–
–
1-20
–
1-20
–
24A34-3 ➀
24A34-4
♦
♦
–
–
1-30
1-110
1-30
–
–
30-90 30-90
♦
♦
1-110 1-110
–
–
1-110 1-110 1-110
–
24A34-5 ➀
24A34-6 ➀
24A34-14 ➀➁
24A34-15
♦
♦
1-110 1-110
1-110 1-110
♦
1-110 1-110 1-110 1-110
♦
♦
♦
1-160 1-160 1-160 1-160
1-160
–
1-160 1-160 1-160 1-160 1-160
♦
♦
75-95
–
–
–
1-60
–
–
–
–
TABLE NOTES:
➀ M1-M2 and M3-M4 are always first switches to turn ON and last to turn OFF. All other switches are random ON and random OFF
➁ 24A34-14 Switch contacts designated F1 - F2 instead of M1 - M2
♦ These contacts switch simultaneously
NOTE: Underwriters Laboratories requires a fan interlock circuit to insure the blower remains operating whenever more than one sequencer is used. The fan in-
terlock should be the M1 / M2 contacts of the second or third sequencer. All M1 / M2 contacts are wired to the blower motor so that any sequencer that is energized
will keep the blower ON.
PART NO. 37-4800C
Replaces 37-4800B
1050
www.white-rodgers.com
www.emersonclimate.com
WIRING DIAGRAMS
FAN DELAY OFF
FOR THREE ELEMENT FURNACES WITH
COMBINATION FAN & HEATER LOADS
WIRING
I
2
3
Normally close
Normally open
SINGLE-STAGE Room Thermostat
WIRING
H
H
M5
H
M6
H
To 3rd element
(One Timing)
24A34-15
ONE POLE
To 24vAC wall thermostat
To fan & 1st element
M1
M2
TWO POLE M3
H
M4
H
To 2nd element
FOR ONE ELEMENT FURNACES
(Two Timings)
24A34-5
COMBINATION Fan and Heater Loads
WIRING
M1
H
M2 To 1st element & fan
To 24 VAC wall thermostat
TWO-STAGE Room Thermostat Option
ONE POLE
H
WIRING
(One Timing)
24A34-1 / -2
M5
M6
M8
H
TWO POLE M7
To 3rd element
SEPARATE Fan and Heater Loads
H
To 24vAC wall thermostat
To fan & 1st element
WIRING
M1
M2
TWO POLE M3
H
M4
H
To 2nd element
M1
TWO POLE M3
H
M2 To fan
M4 To 1st element
H
To 24vAC wall thermostat
(Two Timings)
24A34-6
(One Timing)
24A34-3 / -4
FOR THREE ELEMENT FURNACES WITH
SEPARATE FAN & HEATER LOADS
FOR TWO ELEMENT FURNACES
SINGLE-STAGE Room Thermostat
COMBINATION Fan and Heater Loads
WIRING
WIRING
M1
TWO POLE M3
H
M2 To 1st element & fan
M4 To 2nd element
M5
M6
M8
H
To 2nd element
To 3rd element
To 24vAC wall thermostat
To fan
TWO POLE M7
H
To 24vAC wall thermostat
H
M1
M2
(One Timing)
24A34-3 / -4
TWO POLE M3
H
M4
H
To 1st element
(Two Timings)
24A34-5
SEPARATE Fan and Heater Loads
WIRING
M5
H
M6
H
To 2nd element or aux. contacts
TWO-STAGE Room Thermostat Option
ONE POLE
WIRING
M1
M2
To fan
M1
TWO POLE M3
H
M2 To fan interlock
M4 To 3rd element
TWO POLE M3
H
M4
H
To 1st element
To 24vAC wall thermostat
H
To W2 of 24vAC wall thermostat
(Two Timings)
24A34-5
(One Timing)
24A34-3 / -4
M5
M6
M8
H
To common of 24v transformer
To 2nd element
TWO POLE M7
H
To W1 of 24vAC wall thermostat
To fan
M1
M2
DOTTED LINE BETWEEN "H" TERMINAL
IS A FACTORY-INSTALLED JUMPER
TWO POLE M3
H
M4
H
To 1st element
(Two Timings)
24A34-6
2
WIRING DIAGRAMS
FOR FOUR ELEMENT FURNACES
FOR FIVE ELEMENT FURNACES
COMBINATION Fan and Heater Loads
COMBINATION Fan and Heater Loads
TWO-STAGE Room Thermostat Option After 3rd Element
SINGLE-STAGE Room Thermostat
WIRING
WIRING
M5
M6
M8
H
To 3rd element
To 5th element
M5
H
M6
H
ONE POLE
To W2 of 24vAC wall thermostat
TWO POLE M7
To 4th element
H
To 24vAC wall thermostat
To fan & 1st element
M1
M2
To fan interlock
To 4th element
M1
M2
TWO POLE M3
H
M4
H
TWO POLE M3
H
M4
H
To 2nd element
(Two Timings)
24A34-5
(Two Timings)
24A34-6
M5
M6
M8
H
To common of 24v transformer
To 3rd element
TWO POLE M7
TWO-STAGE Room Thermostat Option after 2nd Element
H
To W1 of 24vAC wall thermostat
To fan & 1st element
WIRING
M1
M2
M5
H
M6
H
To 4th element
TWO POLE M3
H
M4
H
To 2nd element
ONE POLE
To W2 of 24vAC wall thermostat
To fan interlock
M1
M2
(Two Timings)
24A34-6
TWO POLE M3
H
M4
H
To 3rd element
(Two Timings)
24A34-5
SEPARATE Fan and Heater Loads
TWO-STAGE Room Thermostat Option After 2nd Element
WIRING
To common of 24v transformer
To W1 of 24vAC wall thermostat
To fan & 1st element
M5
M6
H
ONE POLE
H
M1
M2
To 4th element
To 2nd element
M5
M6
M8
H
TWO POLE M3
H
M4
H
TWO POLE M7
To 5th element
To W2 of 24vAC wall thermostat
H
(Two Timings)
24A34-5
M1
M2
To fan interlock
To 3rd element
TWO POLE M3
H
M4
H
SEPARATE Fan and Heater Loads
(Two Timings)
24A34-6
TWO-STAGE Room Thermostat Option after 2nd Element
WIRING
M5
M6
M8
H
To common of 24v transformer
To 2nd element
TWO POLE M7
M5
H
M6
H
To 4th element
ONE POLE
H
To W1 of 24vAC wall thermostat
To fan
To W2 of 24vAC wall thermostat
M1
M2
M1
M2
To fan interlock
To 3rd element
TWO POLE M3
H
M4
H
To 1st element
TWO POLE M3
H
M4
H
(Two Timings)
24A34-6
(Two Timings)
24A34-5
M5
M6
M8
H
To common of 24v transformer
To 2nd element
TWO POLE M7
H
To W1 of 24vAC wall thermostat
To fan
M1
M2
TWO POLE M3
H
M4
H
To 1st element
(Two Timings)
24A34-6
DOTTED LINE BETWEEN "H" TERMINAL
IS A FACTORY-INSTALLED JUMPER
3
WIRING DIAGRAMS
FOR SIX ELEMENT FURNACES
FOR SEVEN ELEMENT FURNACES
COMBINATION Fan and Heater Loads
COMBINATION Fan and Heater Loads
TWO-STAGE Room Thermostat Option After 3rd or 5th Element
TWO-STAGE Room Thermostat Option After 3rd Element
WIRING
WIRING
M5
H
M6
H
To 7th element
M5
M6
M8
H
To 5th element
ONE POLE
To W2 of 24vAC wall thermostat
To fan interlock
TWO POLE M7
To 6th element
M1
M2
To W2 of 24vAC wall thermostat
H
TWO POLE M3
H
M4
H
To 6th element
M1
M2
To fan interlock
To 4th element
TWO POLE M3
H
M4
H
(Two Timings)
24A34-5
(Two Timings)
24A34-6
M5
M6
M8
H
To common of 24v transformer
To 5th element
TWO POLE M7
M5
M6
M8
H
To common of 24v transformer
To 3rd element
H
To W2 of 24vAC wall thermostat
To fan interlock
TWO POLE M7
M1
M2
H
To W1 of 24vAC wall thermostat
To fan & 1st element
TWO POLE M3
M4
H
To 4th element
M1
M2
H
TWO POLE M3
H
M4
H
To 2nd element
(Two Timings)
24A34-6
(Two Timings)
24A34-6
M5
M6
M8
H
To common of 24v transformer
To 3rd element
TWO POLE M7
H
To W1 of 24vAC wall thermostat
To fan & 1st element
SEPARATE Fan and Heater Loads
M1
M2
TWO-STAGE Room Thermostat Option After 2nd or 4th Element
TWO POLE M3
H
M4
H
To 2nd element
WIRING
M5
H
M6
H
To 6th element
(Two Timings)
24A34-6
ONE POLE
To W2 of 24vAC wall thermostat
To fan interlock
M1
M2
SEPARATE Fan and Heater Loads
TWO-STAGE Room Thermostat Option After 3rd or 5th Element
WIRING
TWO POLE M3
H
M4
H
To 5th element
(Two Timings)
24A34-6
M5
M6
M8
H
To 6th element
M5
M6
M8
H
To common of 24v transformer
To 4th element
TWO POLE M7
To 7th element
TWO POLE M7
H
To W2 of 24vAC wall thermostat
To fan interlock
H
To W2 of 24vAC wall thermostat
To fan interlock
M1
M2
M1
M2
TWO POLE M3
H
M4
H
To 5th element
TWO POLE M3
M4
H
To 3rd element
H
(Two Timings)
24A34-6
(Two Timings)
24A34-6
M5
M6
M8
H
To common of 24v transformer
To 4th element
M5
M6
M8
H
To common of 24v transformer
To 2nd element
TWO POLE M7
TWO POLE M7
H
To W2 of 24vAC wall thermostat
To fan interlock
H
To W1 of 24vAC wall thermostat
To fan
M1
M2
M1
M2
TWO POLE M3
H
M4
H
To 3rd element
TWO POLE M3
H
M4
H
To 1st element
(Two Timings)
24A34-6
(Two Timings)
24A34-6
M5
M6
M8
H
To common of 24v transformer
To 2nd element
TWO POLE M7
H
To W1 of 24vAC wall thermostat
To fan
DOTTED LINE BETWEEN "H" TERMINAL
IS A FACTORY-INSTALLED JUMPER
M1
M2
TWO POLE M3
H
M4
H
To 1st element
(Two Timings)
24A34-6
White-Rodgers is a division
of Emerson Electric Co.
The Emerson logo is a
trademark and service mark
of Emerson Electric Co.
www.white-rodgers.com
www.emersonclimate.com
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
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