Field Controls CAS-4JR Manual page 3

Table 1
TOTAL INPUT OF APPLIANCE
(BTU/hr)
50,000
60,000
70,000
80,000
90,000
100,000
110,000
300
280
260
240
220
200
180
160
140
120
100
80
60
40
20
0
50,000 60,000
MAXIMUM EQUIVALENT FEET OF DUCT PIPE
4" Pipe
230
160
105
70
40
25
15
CAS-4JR SIZING CHART
Max. equivalent length of 6" pipe
available when using the 4" CAS hood
Max. equivalent length of 4" pipe
available when using the 4" CAS hood
70,000 80,000
Input Firing Rate, BTU/hour
page 3 of 8
5" Pipe
300
300
300
214
122
76
46
90,000 100,000
P/N 46527900 Rev C 03/17
6" Pipe
300
300
300
300
300
180
80
110,000
Diagram A