Installation / Operation Instruction Manual

Page 33
Commercial
table 12
Flow and Head Requirements
Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L
Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L
gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet
150 19.0 39.4 14.3 24.1 11.4 16.3 9.5 11.9 8.1 9.0 7.1 7.2 6.3 5.9 5.7 4.9 5.2 4.2 4.8 3.6
210 26.7 28.1 20.0 15.6 16.0 9.9 13.4 6.9 11.3 4.9 9.9 3.7 8.9 3.0 8.0 2.4 7.3 2.0 6.7 1.6
285 36.0 29.6 27.0 19.1 22.0 13.9 18.0 10.2 15.0 7.7 13.0 6.2 12.0 5.4 10.8 4.6 9.8 4.0 9.0 3.5
399 50.5 33.8 39.0 22.8 31.0 16.0 25.0 11.5 22.0 9.5 19.0 7.6 16.8 6.3 15.2 5.4 13.8 4.6 12.6 4.0
500 63.5 35.6 48.0 22.2 38.0 14.9 32.0 11.1
27.0 8.3 24.0 6.8 21.1 5.5 19.0 4.6 17.3 3.9 15.8 3.4
600 75.9 48.3 58.0 30.5 46.0 20.6 38.0 14.9 33.0 11.7 29.0 9.4 25.3 7.5 22.8 6.3 20.7 5.3 19.0 4.6
750 95.0 64.5 72.0 38.0 58.0 25.0 48.0 17.5 41.0 13.0 36.0 10.1 31.7 7.9 28.5 6.5 25.9 5.4 23.8 4.6
850 108.0 56.6 81.0 34.8 65.0 23.9 54.0 17.4 46.0 13.3 41.0 10.9 35.9 8.7 32.3 7.3 29.4 6.2 26.9 5.3
Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L
lpm m lpm m lpm m lpm m lpm m lpm m lpm m lpm m lpm m lpm m
150 71.9 12.0 54.1 7.3 43.2 5.0 36.0 3.6 30.7 2.8 26.9 2.2 23.8 1.8 21.6 1.5 19.7 1.3
18.2 1.1
210 101.1 8.6 75.7 4.8 60.6 3.0 50.7 2.1 42.8 1.5 37.5 1.1 33.7 0.9 30.3 0.7 27.6 0.6 25.4 0.5
285 136.3 9.0 102.2 5.8 83.3 4.2 68.1 3.1 56.8 2.3 49.2 1.9 45.4 1.6 40.9 1.4 37.1 1.2 34.1 1.1
399 191.2 10.3 147.6 6.9 117.3 4.9 94.6 3.5 83.3 2.9 71.9 2.3 63.6 1.9 57.5 1.6 52.2 1.4 47.7 1.2
500 240.4 10.9 181.7 6.8 143.8 4.5 121.1 3.4 102.2 2.5 90.8 2.1 79.9 1.7 71.9 1.4 65.5 1.2 59.8 1.0
600 287.3 14.7 219.6 9.3 174.1 6.3 143.8 4.5 124.9 3.6 109.8 2.9 95.8 2.3 86.3 1.9 78.4 1.6 71.9 1.4
750 359.6 19.7 272.5 11.6 219.6 7.6 181.7 5.3 155.2 4.0 136.3 3.1 120.0 2.4 107.9 2.0 98.0 1.6 90.1 1.4
850 408.8 17.3 306.6 10.6 246.1 7.3 204.4 5.3 174.1 4.1 155.2 3.3 135.9 2.7 122.3 2.2 111.3 1.9 101.8 1.6
Table 13
Water Heater Minimum Head and Flow requirements
Flow H/L Temp Rise Flow H/L Temp Rise
gpm feet F lpm m C
150 15 26 19 150 56.8 7.9 10
199 22 20 17 199 83.3 6.1 9
285 30 22 18 285 113.6 6.7 10
399 45 28 17 399 170.3 8.5 9
500 52 26 18 500 196.8 7.9 10
600 52 26 22 600 196.8 7.9 12
750 60 27 24 750 227.1 8.2 13
850 67 25 24 850 253.6 7.6 13
Table 15
Size 150 199/210 285 399 500 600 750 850
Voltage 120V 120V 120V 120V 120V 120V 120V 120V
FLA 2.0 2.0 2.0 2.0 2.0 5.0 5.0 5.0
MCA 2.5 2.5 2.5 2.5 2.5 6.3 6.3 6.3
MOP 15 15 15 15 15 15 15 15
Size 150 210 285 399* 500* 600* 750* 850*
Voltage 120V 120V 120V 120V 120V 120V 120V 120V
FLA 3.8 4.0 5.6 11.3 11.3 11.8 11.8 11.8
MCA 4.8 5.0 7.0 14.1 14.1 14.8 14.8 14.8
MOP 15 15 15 25 25 25 25 25
Pump only (Boiler)* Separate Circuit
* Units 399 through 850 require separate electrical circuit when using supplied pump
table 16
Size 150 199/210 285 399 500 600 750 850
Voltage 120V 120V 120V 120V 120V 120V 120V 120V
FLA 2.0 2.0 2.0 2.0 2.0 5.0 5.0 5.0
MCA 2.5 2.5 2.5 2.5 2.5 6.3 6.3 6.3
MOP 15 15 15 15 15 15 15 15
Size 150 199 285 399* 500* 600* 750* 850*
Voltage 120V 120V 120V 120V 120V 120V 120V 120V
FLA 6.8 6.8 6.8 11.3 12.8 11.8 11.8 11.8
MCA 8.5 8.5 8.5 14.1 16.0 14.8 14.8 14.8
MOP 15 15 15 25 25 25 25 25
Pump only (Water Heater)* Separate Circuit
* Units 399 through 850 require separate electrical circuit when using supplied pump
Water Heater w/Pump
Water Heater (no pump)
Water Heater (no pump)
Boiler (no pump)
Boiler w/Pump
Boiler (no pump)
40
45
50
55
60
15
20
25
30
35
8
11
14
17
19
22
25
28
31
33
Commercial
table 12
Flow and Head Requirements
Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L
gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet
150 19.0 39.4 14.3 24.1 11.4 16.3 9.5 11.9 8.1 9.0 7.1 7.2 6.3 5.9 5.7 4.9 5.2 4.2 4.8 3.6
210 26.7 28.1 20.0 15.6 16.0 9.9 13.4 6.9 11.3 4.9 9.9 3.7 8.9 3.0 8.0 2.4 7.3 2.0 6.7 1.6
285 36.0 29.6 27.0 19.1 22.0 13.9 18.0 10.2 15.0 7.7 13.0 6.2 12.0 5.4 10.8 4.6 9.8 4.0 9.0 3.5
399 50.5 33.8 39.0 22.8 31.0 16.0 25.0 11.5 22.0 9.5
19.0 7.6 16.8 6.3 15.2 5.4 13.8 4.6 12.6 4.0
500 63.5 35.6 48.0 22.2 38.0 14.9 32.0 11.1
27.0 8.3
24.0 6.8 21.1 5.5 19.0 4.6 17.3 3.9 15.8 3.4
600 75.9 48.3 58.0 30.5 46.0 20.6 38.0 14.9 33.0 11.7
29.0 9.4 25.3 7.5 22.8 6.3 20.7 5.3 19.0 4.6
750 95.0 64.5 72.0 38.0 58.0 25.0 48.0 17.5 41.0 13.0
36.0 10.1 31.7 7.9 28.5 6.5 25.9 5.4 23.8 4.6
850 108.0 56.6 81.0 34.8 65.0 23.9 54.0 17.4 46.0 13.3
41.0 10.9 35.9 8.7 32.3 7.3 29.4 6.2 26.9 5.3
Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L
Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L
lpm m lpm m lpm m lpm m lpm m lpm m lpm m lpm m lpm m lpm m
150 71.9 12.0 54.1 7.3 43.2 5.0 36.0 3.6 30.7 2.8 26.9 2.2 23.8 1.8 21.6 1.5 19.7 1.3
18.2 1.1
210 101.1 8.6 75.7 4.8 60.6 3.0 50.7 2.1 42.8 1.5 37.5 1.1 33.7 0.9 30.3 0.7 27.6 0.6 25.4 0.5
285 136.3 9.0 102.2 5.8 83.3 4.2 68.1 3.1 56.8 2.3 49.2 1.9 45.4 1.6 40.9 1.4 37.1 1.2 34.1 1.1
399 191.2 10.3 147.6 6.9 117.3 4.9 94.6 3.5 83.3 2.9 71.9 2.3 63.6 1.9 57.5 1.6 52.2 1.4 47.7 1.2
500 240.4 10.9 181.7 6.8 143.8 4.5 121.1 3.4 102.2 2.5 90.8 2.1 79.9 1.7 71.9 1.4 65.5 1.2 59.8 1.0
600 287.3 14.7 219.6 9.3 174.1 6.3 143.8 4.5 124.9 3.6 109.8 2.9 95.8 2.3 86.3 1.9 78.4 1.6 71.9 1.4
750 359.6 19.7 272.5 11.6 219.6 7.6 181.7 5.3 155.2 4.0 136.3 3.1 120.0 2.4 107.9 2.0 98.0 1.6 90.1 1.4
850 408.8 17.3 306.6 10.6 246.1 7.3 204.4 5.3 174.1 4.1 155.2 3.3 135.9 2.7 122.3 2.2 111.3 1.9 101.8 1.6
Table 13
Water Heater Minimum Head and Flow requirements
Flow H/L Temp Rise Flow H/L Temp Rise
gpm feet F lpm m C
150 15 26 19 150 56.8 7.9 10
199 22 20 17 199 83.3 6.1 9
285 30 22 18 285 113.6 6.7 10
399 45 28 17 399 170.3 8.5 9
500 52 26 18 500 196.8 7.9 10
600 52 26 22 600 196.8 7.9 12
750 60 27 24 750 227.1 8.2 13
850 67 25 24 850 253.6 7.6 13
Table 15
Size 150 199/210 285 399 500 600 750 850
Voltage 120V 120V 120V 120V 120V 120V 120V 120V
FLA 2.0 2.0 2.0 2.0 2.0 5.0 5.0 5.0
MCA 2.5 2.5 2.5 2.5 2.5 6.3 6.3 6.3
MOP 15 15 15 15 15 15 15 15
Size 150 210 285 399* 500* 600* 750* 850*
Voltage 120V 120V 120V 120V 120V 120V 120V 120V
FLA 3.8 4.0 5.6 11.3 11.3 11.8 11.8 11.8
MCA 4.8 5.0 7.0 14.1 14.1 14.8 14.8 14.8
MOP 15 15 15 25 25 25 25 25
Pump only (Boiler)* Separate Circuit
* Units 399 through 850 require separate electrical circuit when using supplied pump
table 16
Size 150 199/210 285 399 500 600 750 850
Voltage 120V 120V 120V 120V 120V 120V 120V 120V
FLA 2.0 2.0 2.0 2.0 2.0 5.0 5.0 5.0
MCA 2.5 2.5 2.5 2.5 2.5 6.3 6.3 6.3
MOP 15 15 15 15 15 15 15 15
Size 150 199 285 399* 500* 600* 750* 850*
Voltage 120V 120V 120V 120V 120V 120V 120V 120V
FLA 6.8 6.8 6.8 11.3 12.8 11.8 11.8 11.8
MCA 8.5 8.5 8.5 14.1 16.0 14.8 14.8 14.8
MOP 15 15 15 25 25 25 25 25
Pump only (Water Heater)* Separate Circuit
* Units 399 through 850 require separate electrical circuit when using supplied pump
Water Heater w/Pump
Water Heater (no pump)
Water Heater (no pump)
Boiler (no pump)
Boiler w/Pump
Boiler (no pump)
40
45
50
55
60
15
20
25
30
35
8
11
14
17
19
22
25
28
31
33
Commercial
table 12
Flow and Head Requirements
Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L
gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet
150 19.0 39.4 14.3 24.1 11.4 16.3 9.5 11.9 8.1 9.0 7.1 7.2 6.3 5.9 5.7 4.9 5.2 4.2 4.8 3.6
210 26.7 28.1 20.0 15.6 16.0 9.9 13.4 6.9 11.3 4.9 9.9 3.7 8.9 3.0 8.0 2.4 7.3 2.0 6.7 1.6
285 36.0 29.6 27.0 19.1 22.0 13.9 18.0 10.2 15.0 7.7 13.0 6.2 12.0 5.4 10.8 4.6 9.8 4.0 9.0 3.5
399 50.5 33.8 39.0 22.8 31.0 16.0 25.0 11.5 22.0 9.5 19.0 7.6 16.8 6.3 15.2 5.4 13.8 4.6 12.6 4.0
500 63.5 35.6 48.0 22.2 38.0 14.9 32.0 11.1
27.0 8.3 24.0 6.8 21.1 5.5 19.0 4.6 17.3 3.9 15.8 3.4
600 75.9 48.3 58.0 30.5 46.0 20.6 38.0 14.9 33.0 11.7 29.0 9.4 25.3 7.5 22.8 6.3 20.7 5.3 19.0 4.6
750 95.0 64.5 72.0 38.0 58.0 25.0 48.0 17.5 41.0 13.0 36.0 10.1 31.7 7.9 28.5 6.5 25.9 5.4 23.8 4.6
850 108.0 56.6 81.0 34.8 65.0 23.9 54.0 17.4 46.0 13.3 41.0 10.9 35.9 8.7 32.3 7.3 29.4 6.2 26.9 5.3
Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L
lpm m lpm m lpm m lpm m lpm m lpm m lpm m lpm m lpm m lpm m
150 71.9 12.0 54.1 7.3 43.2 5.0 36.0 3.6 30.7 2.8 26.9 2.2 23.8 1.8 21.6 1.5 19.7 1.3
18.2 1.1
210 101.1 8.6 75.7 4.8 60.6 3.0 50.7 2.1 42.8 1.5 37.5 1.1 33.7 0.9 30.3 0.7 27.6 0.6 25.4 0.5
285 136.3 9.0 102.2 5.8 83.3 4.2 68.1 3.1 56.8 2.3 49.2 1.9 45.4 1.6 40.9 1.4 37.1 1.2 34.1 1.1
399 191.2 10.3 147.6 6.9 117.3 4.9 94.6 3.5 83.3 2.9
71.9 2.3 63.6 1.9 57.5 1.6 52.2 1.4 47.7 1.2
500 240.4 10.9 181.7 6.8 143.8 4.5 121.1 3.4 102.2 2.5
90.8 2.1 79.9 1.7 71.9 1.4 65.5 1.2 59.8 1.0
600 287.3 14.7 219.6 9.3 174.1 6.3 143.8 4.5 124.9 3.6
109.8 2.9 95.8 2.3 86.3 1.9 78.4 1.6 71.9 1.4
750 359.6 19.7 272.5 11.6 219.6 7.6 181.7 5.3 155.2 4.0
136.3 3.1 120.0 2.4 107.9 2.0 98.0 1.6 90.1 1.4
850 408.8 17.3 306.6 10.6 246.1 7.3 204.4 5.3 174.1 4.1
155.2 3.3 135.9 2.7 122.3 2.2 111.3 1.9 101.8 1.6
Table 13
Water Heater Minimum Head and Flow requirements
Flow H/L Temp Rise Flow H/L Temp Rise
gpm feet F lpm m C
150 15 26 19 150 56.8 7.9 10
199 22 20 17 199 83.3 6.1 9
285 30 22 18 285 113.6 6.7 10
399 45 28 17 399 170.3 8.5 9
500 52 26 18 500 196.8 7.9 10
600 52 26 22 600 196.8 7.9 12
750 60 27 24 750 227.1 8.2 13
850 67 25 24 850 253.6 7.6 13
Table 15
Size 150 199/210 285 399 500 600 750 850
Voltage 120V 120V 120V 120V 120V 120V 120V 120V
FLA 2.0 2.0 2.0 2.0 2.0 5.0 5.0 5.0
MCA 2.5 2.5 2.5 2.5 2.5 6.3 6.3 6.3
MOP 15 15 15 15 15 15 15 15
Size 150 210 285 399* 500* 600* 750* 850*
Voltage 120V 120V 120V 120V 120V 120V 120V 120V
FLA 3.8 4.0 5.6 11.3 11.3 11.8 11.8 11.8
MCA 4.8 5.0 7.0 14.1 14.1 14.8 14.8 14.8
MOP 15 15 15 25 25 25 25 25
Pump only (Boiler)* Separate Circuit
* Units 399 through 850 require separate electrical circuit when using supplied pump
table 16
Size 150 199/210 285 399 500 600 750 850
Voltage 120V 120V 120V 120V 120V 120V 120V 120V
FLA 2.0 2.0 2.0 2.0 2.0 5.0 5.0 5.0
MCA 2.5 2.5 2.5 2.5 2.5 6.3 6.3 6.3
MOP 15 15 15 15 15 15 15 15
Size 150 199 285 399* 500* 600* 750* 850*
Voltage 120V 120V 120V 120V 120V 120V 120V 120V
FLA 6.8 6.8 6.8 11.3 12.8 11.8 11.8 11.8
MCA 8.5 8.5 8.5 14.1 16.0 14.8 14.8 14.8
MOP 15 15 15 25 25 25 25 25
Pump only (Water Heater)* Separate Circuit
* Units 399 through 850 require separate electrical circuit when using supplied pump
Water Heater w/Pump
Water Heater (no pump)
Water Heater (no pump)
Boiler (no pump)
Boiler w/Pump
Boiler (no pump)
40
45
50
55
60
15
20
25
30
35
8
11
14
17
19
22
25
28
31
33
Table 14. Water Heater Flow and Head Requirements
5.B Water Heater Flow and Head Requirements
Commercial
table 12
Flow and Head Requirements
Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L
gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet gpm feet
150 19.0 39.4 14.3 24.1 11.4 16.3 9.5 11.9 8.1 9.0 7.1 7.2 6.3 5.9 5.7 4.9 5.2 4.2 4.8 3.6
210 26.7 28.1 20.0 15.6 16.0 9.9 13.4 6.9 11.3 4.9 9.9 3.7 8.9 3.0 8.0 2.4 7.3 2.0 6.7 1.6
285 36.0 29.6 27.0 19.1 22.0 13.9 18.0 10.2 15.0 7.7 13.0 6.2 12.0 5.4 10.8 4.6 9.8 4.0 9.0 3.5
399 50.5 33.8 39.0 22.8 31.0 16.0 25.0 11.5 22.0 9.5 19.0 7.6 16.8 6.3 15.2 5.4 13.8 4.6 12.6 4.0
500 63.5 35.6 48.0 22.2 38.0 14.9 32.0 11.1
27.0 8.3 24.0 6.8 21.1 5.5 19.0 4.6 17.3 3.9 15.8 3.4
600 75.9 48.3 58.0 30.5 46.0 20.6 38.0 14.9 33.0 11.7 29.0 9.4 25.3 7.5 22.8 6.3 20.7 5.3 19.0 4.6
750 95.0 64.5 72.0 38.0 58.0 25.0 48.0 17.5 41.0 13.0 36.0 10.1 31.7 7.9 28.5 6.5 25.9 5.4 23.8 4.6
850 108.0 56.6 81.0 34.8 65.0 23.9 54.0 17.4 46.0 13.3 41.0 10.9 35.9 8.7 32.3 7.3 29.4 6.2 26.9 5.3
Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L Flow H/L
lpm m lpm m lpm m lpm m lpm m lpm m lpm m lpm m lpm m lpm m
150 71.9 12.0 54.1 7.3 43.2 5.0 36.0 3.6 30.7 2.8 26.9 2.2 23.8 1.8 21.6 1.5 19.7 1.3
18.2 1.1
210 101.1 8.6 75.7 4.8 60.6 3.0 50.7 2.1 42.8 1.5 37.5 1.1 33.7 0.9 30.3 0.7 27.6 0.6 25.4 0.5
285 136.3 9.0 102.2 5.8 83.3 4.2 68.1 3.1 56.8 2.3 49.2 1.9 45.4 1.6 40.9 1.4 37.1 1.2 34.1 1.1
399 191.2 10.3 147.6 6.9 117.3 4.9 94.6 3.5 83.3 2.9 71.9 2.3 63.6 1.9 57.5 1.6 52.2 1.4 47.7 1.2
500 240.4 10.9 181.7 6.8 143.8 4.5 121.1 3.4 102.2 2.5 90.8 2.1 79.9 1.7 71.9 1.4 65.5 1.2 59.8 1.0
600 287.3 14.7 219.6 9.3 174.1 6.3 143.8 4.5 124.9 3.6 109.8 2.9 95.8 2.3 86.3 1.9 78.4 1.6 71.9 1.4
750 359.6 19.7 272.5 11.6 219.6 7.6 181.7 5.3 155.2 4.0 136.3 3.1 120.0 2.4 107.9 2.0 98.0 1.6 90.1 1.4
850 408.8 17.3 306.6
10.6 246.1 7.3 204.4 5.3 174.1 4.1 155.2 3.3 135.9 2.7 122.3 2.2 111.3 1.9 101.8 1.6
Table 13
Water Heater Minimum Head and Flow requirements
Flow H/L Temp Rise Flow H/L Temp Rise
gpm feet F lpm m C
150 15 26 19 150 56.8 7.9 10
199 22 20 17 199 83.3 6.1 9
285 30 22 18 285 113.6 6.7 10
399 45 28 17 399 170.3 8.5 9
500 52 26 18 500 196.8 7.9 10
600 52 26 22 600 196.8 7.9 12
750 60 27 24 750 227.1 8.2 13
850 67 25 24 850 253.6 7.6 13
Table 15
Size 150 199/210 285 399 500 600 750 850
Voltage 120V 120V 120V 120V 120V 120V 120V 120V
FLA 2.0 2.0 2.0 2.0 2.0 5.0 5.0 5.0
MCA 2.5 2.5 2.5 2.5 2.5 6.3 6.3 6.3
MOP 15 15 15 15 15 15 15 15
Size 150 210 285 399* 500* 600* 750* 850*
Voltage 120V 120V 120V 120V 120V 120V 120V 120V
FLA 3.8 4.0 5.6 11.3 11.3 11.8 11.8 11.8
MCA 4.8 5.0 7.0 14.1 14.1 14.8 14.8 14.8
MOP 15 15 15 25 25 25 25 25
Pump only (Boiler)* Separate Circuit
* Units 399 through 850 require separate electrical circuit when using supplied pump
table 16
Size 150 199/210 285 399 500 600 750 850
Voltage 120V 120V 120V 120V 120V 120V 120V 120V
FLA 2.0 2.0 2.0 2.0 2.0 5.0 5.0 5.0
MCA 2.5 2.5 2.5 2.5 2.5 6.3 6.3 6.3
MOP 15 15 15 15 15 15 15 15
Size 150 199 285 399* 500* 600* 750* 850*
Voltage 120V 120V 120V 120V 120V 120V 120V 120V
FLA 6.8 6.8 6.8 11.3 12.8 11.8 11.8 11.8
MCA 8.5 8.5 8.5 14.1 16.0 14.8 14.8 14.8
MOP 15 15 15 25 25 25 25 25
Pump only (Water Heater)* Separate Circuit
* Units 399 through 850 require separate electrical circuit when using supplied pump
Water Heater w/Pump
Water Heater (no pump)
Water Heater (no pump)
Boiler (no pump)
Boiler w/Pump
Boiler (no pump)
40
45
50
55
60
15
20
25
30
35
8
11
14
17
19
22
25
28
31
33
Brute HIGH EFFICIENCY COMMERCIAL BOILERS AND VOLUME WATER HEATERS