CODE OPTIONS CSD-1 STANDARD KN-6 - Dual Fuel Category II or Category IV Appliance (see Installation and Operation Manual for venting information) SKN-6DF-4 71 17/32 1817 35 1/8 892 32 1/16 814 12 9/16 319 25 635 2X 1 1/32 26 8 1/32 204 18 21/32 474 32 15/16 837 14 29/32 378 15 1/8 384 CONDENSATE DRAIN 3/4 HOSE BARB 1 NPT L.P. INLET 1 NPT N.G. INLET WIRING CONNECTIONS 3 5/32 80 9 11/16 246 44 9/16 1132 3 5/32 80 TOP VIEW ASUB-31_D 2 1/2 64 20 508 25 635 1 3/4 44 4X 5/8 16 BOTTOM VIEW ASUB-31_D 3 7/32 82 12 1/2 318 17 11/32 441 21 13/16 554 21 5/8 549 9 1/8 232 20 1/2 521 46 15/16 1192 13 1/4 336 64 13/32 1636 3 NPT BOILER OUTLET 3 NPT BOILER INLET BOILER DRAIN VALVE 4 FLUE OUTLET 6 AIR INLET FRONT VIEW ASUB-31_D SIDE VIEW ASUB-31_D REAR VIEW ASUB-31_D NOTES: 1. SYMBOL INDICATES CENTER OF GRAVITY. 2. DIMENSIONS ARE NOMINAL AND SUBJECT TO MANUFACTURING VARIATION AND SHOULD NOT BE USED FOR "ROUGHING IN". 3. ALL DIMENSIONS ARE INCHES [mm].
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CODE OPTIONS
CSD-1 STANDARDKN-6 - Dual FuelCategory II or Category IV Appliance
(see Installation and Operation Manual for venting information)
SKN-6DF-4
71 17/321817
35 1/8892
32 1/16814
12 9/16319
25635
2X 1 1/3226
8 1/32204
18 21/32474
32 15/16837
14 29/32378
15 1/8384
CONDENSATE DRAIN3/4 HOSE BARB
1 NPTL.P. INLET
1 NPTN.G. INLET
WIRINGCONNECTIONS
3 5/3280
9 11/16246
44 9/161132
3 5/3280
TOP VIEWASUB-31_D
2 1/264
20508
25635
1 3/444
4X 5/816
BOTTOM VIEWASUB-31_D
3 7/3282
12 1/2
318
17 11/32441
21 13/16554
21 5/8549
9 1/8232
20 1/2521
46 15/161192
13 1/4336
64 13/321636
3 NPTBOILER OUTLET
3 NPTBOILER INLET
BOILERDRAINVALVE
4FLUE OUTLET
6 AIR INLET
FRONT VIEWASUB-31_D
SIDE VIEWASUB-31_D
REAR VIEWASUB-31_D
NOTES: 1. SYMBOL INDICATES CENTER OF GRAVITY. 2. DIMENSIONS ARE NOMINAL AND SUBJECT TO MANUFACTURING VARIATION AND SHOULD NOT BE USED FOR "ROUGHING IN".3. ALL DIMENSIONS ARE INCHES [mm].
REP FIRM
SUBMITTED BY
JOB NAME
ARCHITECT
ENGINEER
CONTRACTOR
DATE
KN-6 - Dual FuelCategory II or Category IV Appliance
(see Installation and Operation Manual for venting information)
A Division of Mestek, Inc.Westfield, MA 01085(413) 564-5515
A.G.A. CERTIFIED RATINGS & CAPACITIESFuel Type Natural/LP Gas Boiler FLA 13.1 A*
Input BTU/hr. 600 MBH / 176 KW Min. Gas Pressure Required 3" W.C.
Output BTU/hr. 540 MBH / 158 KW Max. Gas Pressure Allowed 14" W.C.
Boiler HP 16.3 Water Volume 7.9 gal.
Electrical Requirements 120VAC/ 60 hz/ 1PH Operating Weight 1150 lbs. / 522 kg.
SCCR Rating 5kA
BOILER TRIM & CONTROLSMain Gas Valve Dungs MBC Air Switch Huba
Firing Valve 1" Apollo Flow Sensor SIKA
Ignition Control Honeywell RM7895C Blocked Flue Switch Cleveland NS2
Operating Control HeatNet® Blower Motor Ametek
High Limit Honeywell L4006E L.W.C.O. 800
Main Ball Valve 1" Apollo Relief Valve 30, 50, 75 & 100 PSI
Pilot Cock 1/4" Conbraco Pilot Regulator Maxitrol RV12LT
A.S.M.E.ASME Sect IV Fire Side Htg Surface 21.18 Sq. Ft. / 1.97 Sq. M. Design Data 100 PSI & 250°F
ASME Sect IV Water Side Htg Surface 21.32 Sq. Ft. / 1.98 Sq. M.
CV. GPM (1PSID) 62
TEMPERATURE RISE / PRESSURE DROP (Based on Full Input)20°F / 11.1°C 40°F / 22.2°C 60°F / 33.3°C 80°F / 44.4°C 100°F / 55.5°C
Flow RatePressure
DropFlow Rate
Pressure Drop
Flow RatePressure
DropFlow Rate
Pressure Drop
Flow RatePressure
Drop
GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa
54.0 3.40 1.75 5.20 27.0 1.70 .44 1.30 18.0 1.10 .19 .60 13.5 .90 .11 .30 10.8 .70 .07 .20
SKN-6DF-4
Flow GPM Temp. Rise** (°F) Vent Length (Equiv. Ft.) Air Inlet Length (Equiv. Ft.)
Min Max Min Max Min Max Min Max
10.8 54.0 20 100 6 120 0 120
**Min/Max delta t reflects boiler operation at full input. For applications requiring operation above/below these parameters please consult factory.
*Add circulator amps.
CODE OPTIONS
CSD-1 STANDARDKN-10 - Dual FuelCategory II or Category IV Appliance
(see Installation and Operation Manual for venting information)
SKN-10DF-4
35 1/8892
12 1/2317
25635
32 3/32815
71 17/321817
2X 13/1620
8 1/32204
18 21/32474
14 23/32
373
18 15/32469
CONDENSATE DRAIN3/4 HOSE BARB
1 NPTL.P. INLET
1 NPTN.G. INLET
WIRINGCONNECTIONS
3 5/3280
3 5/3280
52 1/321321
TOP VIEWASUB-30_D
20508
1 3/444
32 1/8816
2 1/264
4X 5/816
BOTTOM VIEWASUB-30_D
9 1/8232
20 1/2521
46 15/161192
21 5/8549
3 7/3282
12 1/2318
17 11/32441
21 13/16554
64 13/321636
13 1/4336
3 NPTBOILER OUTLET
3 NPTBOILER INLET
BOILERDRAINVALVE
4FLUE OUTLET
6 AIR INLET
FRONT VIEWASUB-30_C
SIDE VIEWASUB-30_D
REAR VIEWASUB-30_D
NOTES:
1. SYMBOL INDICATES CENTER OF GRAVITY. 2. DIMENSIONS ARE NOMINAL AND SUBJECT TO MANUFACTURING VARIATION AND SHOULD NOT BE USED FOR "ROUGHING IN". 3. ALL DIMENSIONS ARE INCHES [mm].
REP FIRM
SUBMITTED BY
JOB NAME
ARCHITECT
ENGINEER
CONTRACTOR
DATE
KN-10 - Dual FuelCategory II or Category IV Appliance
(see Installation and Operation Manual for venting information)
A Division of Mestek, Inc.Westfield, MA 01085(413) 564-5515
A.G.A. CERTIFIED RATINGS & CAPACITIESFuel Type Natural/LP Gas Boiler FLA 13.1 A*
Input BTU/hr. 1000 MBH / 293 KW Min. Gas Pressure Required 3" W.C.
Output BTU/hr. 900 MBH / 264 KW Max. Gas Pressure Allowed 14" W.C.
Boiler HP 26.9 Water Volume 11.9 gal.
Electrical Requirements 120VAC/ 60 hz/ 1PH Operating Weight 1557 lbs. / 707 kg.
SCCR Rating 5kA
BOILER TRIM & CONTROLSMain Gas Valve Dungs MBC Air Switch Huba
Firing Valve 1 1/4" Apollo Flow Sensor SIKA
Ignition Control Honeywell RM7895C Blocked Flue Switch Cleveland NS2
Operating Control HeatNet® Blower Motor Ametek
High Limit Honeywell L4006E L.W.C.O. 800
Main Ball Valve 1 1/4" Apollo Relief Valve 30, 50, 75 & 100 PSI
Pilot Cock 1/4" Conbraco Pilot Regulator Maxitrol RV12LT
A.S.M.E.ASME Sect IV Fire Side Htg Surface 34.48 Sq. Ft. / 3.20 Sq. M. Design Data 100 PSI & 250°F
ASME Sect IV Water Side Htg Surface 35.54 Sq. Ft. / 3.30 Sq. M.
CV. GPM (1PSID) 100
TEMPERATURE RISE / PRESSURE DROP (Based on Full Input)20°F / 11.1°C 40°F / 22.2°C 60°F / 33.3°C 80°F / 44.4°C 100°F / 55.5°C
Flow RatePressure
DropFlow Rate
Pressure Drop
Flow RatePressure
DropFlow Rate
Pressure Drop
Flow RatePressure
Drop
GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa
90.0 5.70 1.87 5.60 45.0 2.80 .47 1.40 30.0 1.90 .21 .60 22.5 1.40 .12 .30 18.0 1.10 .07 .20
SKN-10DF-4
Flow GPM Temp. Rise** (°F) Vent Length (Equiv. Ft.) Air Inlet Length (Equiv. Ft.)
Min Max Min Max Min Max Min Max
18.0 90.0 20 100 6 120*** 0 120
**Min/Max delta t reflects boiler operation at full input. For applications requiring operation above/below these parameters please consult factory.***A maximum equivalent length of 80 ft. utilizing 4" vent diameter and 120 ft. utilizing 5" vent diameter.
*Add circulator amps.
CODE OPTIONS
CSD-1 STANDARDKN-16 - Dual FuelCategory II or Category IV Appliance
(see Installation and Operation Manual for venting information)
SKN-16DF-4
32 3/8822
12 1/2316
25635
34 31/32888
71 3/81813
7 7/16189
18 7/8480
1 7/3231
23581
CONDENSATE DRAIN3/4 HOSE BARB
1 1/2 NPTL.P. INLET
1 1/2 NPTN.G. INLET
WIRINGCONNECTIONS
61 7/321555
2 25/3270
2 25/3270
TOP VIEWASUB-29_D
2 1/264
20508
1 3/444
43 1/41099
4X 5/816
BOTTOM VIEWASUB-29_D
21 13/16554
46 15/161192
20 1/2521
9 1/8232
21 5/8549
3 7/3282
12 1/2318
17 11/32441
9 15/32241
65 7/321657
3 NPTBOILEROUTLET
3 NPTBOILER INLET
BOILERDRAINVALVE
6FLUEOUTLET
8 AIR INLET
NOTES:
1. SYMBOL INDICATES CENTER OF GRAVITY.
2. DIMENSIONS ARE NOMINAL AND SUBJECT TO MANUFACTURING VARIATION AND SHOULD NOT BE USED FOR "ROUGHING IN".
3. ALL DIMENSIONS ARE INCHES [mm].
SIDE VIEWASUB-29_D
REAR VIEWASUB-29_D
FRONT VIEWASUB-29_D
REP FIRM
SUBMITTED BY
JOB NAME
ARCHITECT
ENGINEER
CONTRACTOR
DATE
KN-16 - Dual FuelCategory II or Category IV Appliance
(see Installation and Operation Manual for venting information)
A Division of Mestek, Inc.Westfield, MA 01085(413) 564-5515
A.G.A. CERTIFIED RATINGS & CAPACITIESFuel Type Natural/LP Gas Boiler FLA 13.1 A*
Input BTU/hr. 1600 MBH / 469 KW Min. Gas Pressure Required 3" W.C.
Output BTU/hr. 1440 MBH / 422 KW Max. Gas Pressure Allowed 14" W.C.
Boiler HP 43.0 Water Volume 17.9 gal.
Electrical Requirements 230VAC/60 hz/1PH (with neutral) Operating Weight 2360 lbs. / 1070 kg.
SCCR Rating 5kA
BOILER TRIM & CONTROLSMain Gas Valve Dungs MBC Air Switch Huba
Firing Valve 1-1/2" Apollo Flow Sensor SIKA
Ignition Control Honeywell RM7895C Blocked Flue Switch Cleveland NS2
Operating Control HeatNet® Blower Motor Ametek
High Limit Honeywell L4006E L.W.C.O. 800
Main Ball Valve 1-1/2" Apollo Relief Valve 30, 50, 75 & 100 PSI
Pilot Cock 1/4" Conbraco Pilot Regulator Maxitrol RV12LT
A.S.M.E.ASME Sect IV Fire Side Htg Surface 54.43 Sq. Ft. / 5.06 Sq. M. Design Data 100 PSI & 250°F
ASME Sect IV Water Side Htg Surface 56.86 Sq. Ft. / 5.28 Sq. M.
CV. GPM (1PSID) 140
TEMPERATURE RISE / PRESSURE DROP (Based on Full Input)20°F / 11.1°C 40°F / 22.2°C 60°F / 33.3°C 80°F / 44.4°C 100°F / 55.5°C
Flow RatePressure
DropFlow Rate
Pressure Drop
Flow RatePressure
DropFlow Rate
Pressure Drop
Flow RatePressure
Drop
GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa
144.1 9.10 2.44 7.30 72.0 4.50 .61 1.80 48.0 3.00 .27 .80 36.0 2.30 .15 .50 28.8 1.80 .10 .30
SKN-16DF-4
Flow GPM Temp. Rise** (°F) Vent Length (Equiv. Ft.) Air Inlet Length (Equiv. Ft.)
Min Max Min Max Min Max Min Max
28.8 144.1 20 100 6 120 0 120
**Min/Max delta t reflects boiler operation at full input. For applications requiring operation above/below these parameters please consult factory.
*Add circulator amps.
CODE OPTIONS
CSD-1 STANDARDKN-20 - Dual FuelCategory II or Category IV Appliance
(see Installation and Operation Manual for venting information)
SKN-20DF-4
34 29/32886
12 13/32315
25635
32 13/32823
71 29/321826
2X 125
7 15/16202
19 13/32493
26 1/4667
CONDENSATE DRAIN3/4 HOSE BARB
1 1/2 NPTL.P. INLET
1 1/2 NPTN.G. INLET
WIRINGCONNECTIONS
68 11/161744
2 25/3270
2 25/3270
TOP VIEWASUB-28_D
50 3/81280
1 3/444
20508
2 1/264
4X 5/816
BOTTOM VIEWASUB-28_D
9 1/8232
20 1/2521
46 15/161192
21 5/8549
3 7/3282
12 1/2318
17 11/32441
21 13/16554
9 3/8238
65 23/321670
3 NPTBOILEROUTLET
3 NPTBOILER INLET
BOILERDRAINVALVE
6FLUEOUTLET
8 AIR INLET
NOTES:
1. SYMBOL INDICATES CENTER OF GRAVITY.
2. DIMENSIONS ARE NOMINAL AND SUBJECT TO MANUFACTURING VARIATION AND SHOULD NOT BE USED FOR "ROUGHING IN".
3. ALL DIMENSIONS ARE INCHES [mm].
FRONT VIEWASUB-28_D
SIDE VIEWASUB-28_D
REAR VIEWASUB-28_D
REP FIRM
SUBMITTED BY
JOB NAME
ARCHITECT
ENGINEER
CONTRACTOR
DATE
KN-20 - Dual FuelCategory II or Category IV Appliance
(see Installation and Operation Manual for venting information)
A Division of Mestek, Inc.Westfield, MA 01085(413) 564-5515
A.G.A. CERTIFIED RATINGS & CAPACITIESFuel Type Natural/LP Gas Boiler FLA 13.1 A*
Input BTU/hr. 1999 MBH / 586 KW Min. Gas Pressure Required 3" W.C.
Output BTU/hr. 1799 MBH / 527 KW Max. Gas Pressure Allowed 14" W.C.
Boiler HP 53.7 Water Volume 21.9 gal.
Electrical Requirements 230VAC/60 hz/1PH (with neutral) Operating Weight 2714 lbs. / 1232 kg.
SCCR Rating 5kA
BOILER TRIM & CONTROLSMain Gas Valve Dungs MBC Air Switch Huba
Firing Valve 1-1/2" Apollo Flow Sensor SIKA
Ignition Control Honeywell RM7895C Blocked Flue Switch Cleveland NS2
Operating Control HeatNet® Blower Motor Ametek
High Limit Honeywell L4006E L.W.C.O. 800
Main Ball Valve 1-1/2" Apollo Relief Valve 30, 50, 75 & 100 PSI
Pilot Cock 1/4" Conbraco Pilot Regulator Maxitrol RV12LT
A.S.M.E.ASME Sect IV Fire Side Htg Surface 67.72 Sq. Ft. / 6.29 Sq. M. Design Data 100 PSI & 250°F
ASME Sect IV Water Side Htg Surface 71.08 Sq. Ft. / 6.60 Sq. M.
CV. GPM (1PSID) 161
TEMPERATURE RISE / PRESSURE DROP (Based on Full Input)20°F / 11.1°C 40°F / 22.2°C 60°F / 33.3°C 80°F / 44.4°C 100°F / 55.5°C
Flow RatePressure
DropFlow Rate
Pressure Drop
Flow RatePressure
DropFlow Rate
Pressure Drop
Flow RatePressure
Drop
GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa
180.0 11.40 2.88 8.60 90.0 5.70 .72 2.20 60.0 3.80 .32 1.00 45.0 2.80 .18 .50 36.0 2.30 .12 .30
SKN-20DF-4
Flow GPM Temp. Rise** (°F) Vent Length (Equiv. Ft.) Air Inlet Length (Equiv. Ft.)
Min Max Min Max Min Max Min Max
36.0 180.0 20 100 6 120 0 120
**Min/Max delta t reflects boiler operation at full input. For applications requiring operation above/below these parameters please consult factory.
*Add circulator amps.
CODE OPTIONS
CSD-1 STANDARDKN-26 - Dual FuelCategory II or Category IV Appliance
(see Installation and Operation Manual for venting information)
SKN-26DF-6
34 9/32871
71 29/321826
25635
32809
12 1/2314
2X 126 7 15/16
202
19 13/32493
802032
32 13/32823
CONDENSATE DRAIN3/4 HOSE BARB
1 1/2 NPTL.P. INLET
1 1/2 NPTN.G. INLET
WIRINGCONNECTIONS
6 31/32177
6 31/32177
TOP VIEWASUB-27_E
2 1/264
20508
62 5/161583
1 3/444
4X 5/816
BOTTOM VIEWASUB-27_E
9 1/8232
20 1/2521
46 1/161170
21 5/8549
3 27/3298
12 1/2318
17 11/32441
21 7/32539
8 AIR INLET 9 3/8238
65 23/321670
4" ANSI FLANGEBOILER OUTLET
4" ANSI FLANGEBOILER INLET
BOILERDRAINVALVE
8FLUE OUTLET
NOTES:
1. SYMBOL INDICATES CENTER OF GRAVITY.
2. DIMENSIONS ARE NOMINAL AND SUBJECT TO MANUFACTURING VARIATION AND SHOULD NOT BE USED FOR "ROUGHING IN".
3. ALL DIMENSIONS ARE INCHES [mm].
FRONT VIEWASUB-27_E
SIDE VIEWASUB-27_E
REAR VIEWASUB-27_E
REP FIRM
SUBMITTED BY
JOB NAME
ARCHITECT
ENGINEER
CONTRACTOR
DATE
KN-26 - Dual FuelCategory II or Category IV Appliance
(see Installation and Operation Manual for venting information)
A Division of Mestek, Inc.Westfield, MA 01085(413) 564-5515
A.G.A. CERTIFIED RATINGS & CAPACITIESFuel Type Natural/LP Gas Boiler FLA 10.7 A*
Input BTU/hr. 2600 MBH / 762 KW Min. Gas Pressure Required 3" W.C.
Output BTU/hr. 2340 MBH / 686 KW Max. Gas Pressure Allowed 14" W.C.
Boiler HP 70 Water Volume 27.7 gal.
Electrical Requirements 230VAC/60 hz/3PH Operating Weight 3425 lbs. / 1555 kg.
SCCR Rating 5kA
BOILER TRIM & CONTROLSMain Gas Valve Dungs MBC Air Switch Huba
Firing Valve 1-1/2" Apollo Flow Sensor SIKA
Ignition Control Honeywell RM7895C Blocked Flue Switch Cleveland NS2
Operating Control HeatNet® Blower Motor Ametek
High Limit (Manual Reset) Honeywell L4006E L.W.C.O. 800
High Limit (Auto Reset) Honeywell L4006A Relief Valve 30, 50, 75 & 100 PSI
Main Ball Valve 1-1/2" Apollo Pilot Regulator Maxitrol RV12LT
Pilot Cock 1/4" Conbraco
A.S.M.E.ASME Sect IV Fire Side Htg Surface 87.69 Sq. Ft. / 8.15 Sq. M. Design Data 100 PSI & 250°F
ASME Sect IV Water Side Htg Surface 92.41 Sq. Ft. / 8.59 Sq. M.
CV. GPM (1PSID) 222
TEMPERATURE RISE / PRESSURE DROP (Based on Full Input)20°F / 11.1°C 40°F / 22.2°C 60°F / 33.3°C 80°F / 44.4°C 100°F / 55.5°C
Flow RatePressure
DropFlow Rate
Pressure Drop
Flow RatePressure
DropFlow Rate
Pressure Drop
Flow RatePressure
Drop
GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa
234.1 14.80 2.57 7.70 117.0 7.40 .64 1.90 78.0 4.90 .29 .90 58.5 3.70 .16 .50 46.8 3.00 .10 .30
SKN-26DF-6
Flow GPM Temp. Rise** (°F) Vent Length (Equiv. Ft.) Air Inlet Length (Equiv. Ft.)
Min Max Min Max Min Max Min Max
46.8 234.1 20 100 6 120 0 120
**Min/Max delta t reflects boiler operation at full input. For applications requiring operation above/below these parameters please consult factory.
*Add circulator amps.
CODE OPTIONS
CSD-1 STANDARDKN-30 - Dual FuelCategory II or Category IV Appliance
(see Installation and Operation Manual for venting information)
SKN-30DF-6
71 29/321826
25635
12 1/2314
32809
34 9/32871
19 13/32493
7 15/16202
2X 1 1/3226
36916
CONDENSATE DRAIN3/4 HOSE BARB
1 1/2 NPTL.P. INLET
1 1/2 NPTN.G. INLET
WIRINGCONNECTIONS
6 31/32177
87 9/322217
6 31/32177
TOP VIEWASUB-26_E
1 3/444
69 11/161770
20508
2 1/264
4X 5/816
BOTTOM VIEWASUB-26_E
21 5/8549
3 27/3298
12 1/2318
17 11/32441
21 7/32539
9 1/8232
20 1/2521
46 1/161170
65 23/321670
9 3/8238
4" ANSI FLANGEBOILER OUTLET
4" ANSI FLANGEBOILER INLET
BOILERDRAINVALVE
8FLUE OUTLET
8 AIR INLET
NOTES:
1. SYMBOL INDICATES CENTER OF GRAVITY.
2. DIMENSIONS ARE NOMINAL AND SUBJECT TO MANUFACTURING VARIATION AND SHOULD NOT BE USED FOR "ROUGHING IN".
3. ALL DIMENSIONS ARE INCHES [mm].
FRONT VIEWASUB-26_E
SIDE VIEWASUB-26_E
REAR VIEWASUB-26_E
REP FIRM
SUBMITTED BY
JOB NAME
ARCHITECT
ENGINEER
CONTRACTOR
DATE
KN-30 - Dual FuelCategory II or Category IV Appliance
(see Installation and Operation Manual for venting information)
A Division of Mestek, Inc.Westfield, MA 01085(413) 564-5515
A.G.A. CERTIFIED RATINGS & CAPACITIESFuel Type Natural/LP Gas Boiler FLA 10.7 A*
Input BTU/hr. 3000 MBH / 879 KW Min. Gas Pressure Required 3" W.C.
Output BTU/hr. 2700 MBH / 791 KW Max. Gas Pressure Allowed 14" W.C.
Boiler HP 80.7 Water Volume 31.7 gal.
Electrical Requirements 230VAC/60 hz/3PH Operating Weight 3850 lbs. / 1748 kg.
SCCR Rating 5kA
BOILER TRIM & CONTROLSMain Gas Valve Dungs MBC Air Switch Huba
Firing Valve 1-1/2" Apollo Flow Sensor SIKA
Ignition Control Honeywell RM7895C Blocked Flue Switch Cleveland NS2
Operating Control HeatNet® Blower Motor Ametek
High Limit (Manual Reset) Honeywell L4006E L.W.C.O. 800
High Limit (Auto Reset) Honeywell L4006A Relief Valve 30, 50, 75 & 100 PSI
Main Ball Valve 1-1/2" Apollo Pilot Regulator Maxitrol RV12LT
Pilot Cock 1/4" Conbraco
A.S.M.E.ASME Sect IV Fire Side Htg Surface 100.98 Sq. Ft. / 9.38 Sq. M. Design Data 100 PSI & 250°F
ASME Sect IV Water Side Htg Surface 106.63 Sq. Ft. / 9.91 Sq. M.
CV. GPM (1PSID) 246
TEMPERATURE RISE / PRESSURE DROP (Based on Full Input)20°F / 11.1°C 40°F / 22.2°C 60°F / 33.3°C 80°F / 44.4°C 100°F / 55.5°C
Flow RatePressure
DropFlow Rate
Pressure Drop
Flow RatePressure
DropFlow Rate
Pressure Drop
Flow RatePressure
Drop
GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa
270.1 17.0 2.78 8.30 135.1 8.50 .70 2.10 90.0 5.70 .31 .90 67.5 4.30 .17 .50 54.0 3.40 .11 .30
SKN-30DF-6
Flow GPM Temp. Rise** (°F) Vent Length (Equiv. Ft.) Air Inlet Length (Equiv. Ft.)
Min Max Min Max Min Max Min Max
54.4 270.1 20 100 6 120 0 120
**Min/Max delta t reflects boiler operation at full input. For applications requiring operation above/below these parameters please consult factory.
*Add circulator amps.
CODE OPTIONS
CSD-1 STANDARDKN-40 - Dual FuelCategory II or Category IV Appliance
(see Installation and Operation Manual for venting information)
SKN-40DF-2
73 15/321866
34 3/8873
30 15/16786
25635
12 13/32315
3 3/3278
7 25/32198
14 11/16373
16 13/16427
3 11/3285
41 9/161056
CONDENSATE DRAIN3/4 HOSE BARB
1 1/2 NPTL.P. INLET
2 NPTN.G. INLET
WIRINGCONNECTIONS
7 5/16186
7 5/16186
107 7/322724
TOP VIEWASUB-00039_B
1 3/444
84 3/42153
2 1/264
20508
4X 5/816
BOTTOM VIEWASUB-00039_B
9 1/8232
11 3/4299
21 13/32544
21 3/8543
66 5/161684
45 27/321165
21 7/32539
17 11/32441
12 1/2318
3 27/3298
4" ANSI FLANGEBOILER OUTLET
4" ANSI FLANGEBOILER INLET
BOILERDRAINVALVE
12 AIR INLET
10 FLUEOUTLET
NOTES:
1. SYMBOL INDICATES CENTER OF GRAVITY.
2. DIMENSIONS ARE NOMINAL AND SUBJECT TO MANUFACTURING VARIATION AND SHOULD NOT BE USED FOR "ROUGHING IN".
3. ALL DIMENSIONS ARE INCHES [mm].
FRONT VIEWASUB-00039_B
SIDE VIEWASUB-00039_B
REAR VIEWASUB-00039_B
REP FIRM
SUBMITTED BY
JOB NAME
ARCHITECT
ENGINEER
CONTRACTOR
DATE
KN-40 - Dual FuelCategory II or Category IV Appliance
(see Installation and Operation Manual for venting information)
A Division of Mestek, Inc.Westfield, MA 01085(413) 564-5515
A.G.A. CERTIFIED RATINGS & CAPACITIESFuel Type Natural/LP Gas Boiler FLA 14.9 A*
Input BTU/hr. 4000 MBH / 1172 KW Min. Gas Pressure Required 3" W.C.
Output BTU/hr. 3540 MBH / 1037 KW Max. Gas Pressure Allowed 14" W.C.
Boiler HP 105.8 Water Volume 41.6 gal.
Electrical Requirements 230VAC/60 hz/3PH Operating Weight 4627 lbs. / 2101 kg.
SCCR Rating 5kA
BOILER TRIM & CONTROLSMain Gas Valve Dungs MBC Air Switch Huba
Firing Valve 2" Apollo Flow Sensor SIKA
Ignition Control Honeywell RM7895C Blocked Flue Switch Cleveland NS2
Operating Control HeatNet® Blower Motor Ametek
High Limit (Manual Reset) Honeywell L4006E L.W.C.O. 800
High Limit (Auto Reset) Honeywell L4006A Relief Valve 30, 50, 75 & 100 PSI
Main Ball Valve 2" Apollo Pilot Regulator Maxitrol RV12LT
Pilot Cock 1/4" Conbraco
A.S.M.E.ASME Sect IV Fire Side Htg Surface 134.23 Sq. Ft. / 12.47 Sq. M. Design Data 100 PSI & 250°F
ASME Sect IV Water Side Htg Surface 142.17 Sq. Ft. / 13.21 Sq. M.
CV. GPM (1PSID) 271
TEMPERATURE RISE / PRESSURE DROP (Based on Full Input)20°F / 11.1°C 40°F / 22.2°C 60°F / 33.3°C 80°F / 44.4°C 100°F / 55.5°C
Flow RatePressure
DropFlow Rate
Pressure Drop
Flow RatePressure
DropFlow Rate
Pressure Drop
Flow RatePressure
Drop
GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa GPM L/s Ft kPa
354.1 22.3 3.94 11.8 177.1 11.2 .99 2.90 118.0 7.40 .44 1.30 88.5 5.60 .25 .70 70.8 4.50 .16 .50
SKN-40DF-2
Flow GPM Temp. Rise** (°F) Vent Length (Equiv. Ft.) Air Inlet Length (Equiv. Ft.)
Min Max Min Max Min Max Min Max
70.8 354.1 20 100 6 100 0 100
**Min/Max delta t reflects boiler operation at full input. For applications requiring operation above/below these parameters please consult factory.
*Add circulator amps.
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