246653-YTG-E-0108
Johnson Controls Unitary Products
15
FIGURE 1 - HOT WATER PIPING CROSS-SEC-
TION
TABLE 12: STATIC RESISTANCE HOT WATER COIL
(1 ROW, 40 TON)
CFM
8000
11000
14000
20000
A
IR
P
RESSURE
D
ROP
1 R
OW
0.11
0.19
0.29
0.52
A
IR
P
RESSURE
D
ROP
2 R
OW
0.23
0.39
0.58
1.06
HOT WATER
COIL
CONDENSING
SECTION
INLET (2")
OUTLET (2")
C
L
2.55"
8.38"
2.25"
11.88"
26"
15.8"
88.75"
HEAT SECTION
COMPARTMENT
(1 OR 2 ROW)
OUTSIDE OF
BASE RAIL
TABLE 13: HOT WATER COIL (1 ROW 40 TON)
1
1.
Based on 60°F entering air temperature, 2.00” maximum pres-
sure drop across the hot water coil.
GPM
CFM
C
APACITY
(MBH)
AT
E
NTERING
W
ATER
T
EMPERATURE
140 °F
160 °F
180 °F
200 °F
10
8000
102
128.8
155.8
182.9
11000
114
144.1
174.4
205.1
14000
123.2
155.9
188.8
222.1
17000
130.6
165.4
200.4
235.8
20000
136.8
173.3
210.1
247.3
20
8000
116.8
147
177.2
207.7
11000
133.2
167.7
202.3
237.2
14000
146.2
184.2
222.4
260.8
17000
157
197.9
239
280.5
20000
166.2
209.6
253.2
297.3
30
8000
122.8
154.3
185.8
217.5
11000
141.2
177.4
213.8
250.3
14000
155.9
196.1
236.4
276.9
17000
168.3
211.8
255.4
299.3
20000
179.1
225.3
271.8
318.6
40
8000
126.1
158.2
190.5
222.8
11000
145.6
182.7
220
257.5
14000
161.4
202.6
244.1
285.8
17000
174.7
219.5
264.5
309.7
20000
186.3
234.2
282.3
330.6
