White Rodgers 50A55-843 Universal Silicon Carbide Integrated Furnace Control 참조 가이드
50A55-843 Universal Cross Reference Chart
See other side for 50A50 replacement Cross Reference
Type Number
50A55-120
50A55-143
50A55-285
50A55-286
50A55-288
50A55-438
50A55-474,
-571
50A55-843
Pre-Purge
15
30
0
0
0
0
0
30
Trial for Ignition
4
4
4
7
4
4
4
4
Ignition Activation
Period
1
4
4
4
1
3
1
1
Retries
4 times
4 times
2 times
2 times
2 times
2 times
2 times
2 times
Valve Sequence
Period
12
20
12
21
12
12
12
12
Interpurge
15
60
60
15
60
60
60
60
Post-Purge
5
5
15
15
15
5
5
15
Lockout Time
150
678
272
272
300
269
300
300
Heat
Delay-to-Fan-On
45
15, 30,
45, 60
30
30
30
45
45
30, 45
Heat
Delay-to-Fan-Off
60, 90,
120, 180
60, 90,
120, 180
60, 90,
120, 180
60, 90,
120, 180
60, 90,
120, 180
60, 90,
120, 180
60, 100,
140, 180
60, 90,
120, 180
Cool
Delay-to-Fan-On
0
0
0
0
5
2
2
5
Cool
Delay-to-Fan-Off
0
45
45
45
45
0, 80
0,,80
45, 90
Air Cleaner
terminal
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Humidifier
terminal
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Replaces
*
All times are in seconds
*The Universal 50A55-843 control will replace all 50A50 and 50A55 models
1
Part No. 37-6376A
0204