CROWN_BOILER_LITERATURE.pdf

Heat exchanger constructed and tested in accordance with

ASME Section IV standard.

CROWN Series 32 boilers are designed for the special heating needs of businesses, institutions, apartments and other commercial buildings Series 32 boilers are equipped with proven con-trols and safety features to optimize opera-tion. With built-in draft hoods, they will fit under low ceilings. Control options make them the best choice for a wide variety of installations.

Wide range of sizes The Series 32 boilers can supply heating loads from 475 to 2,850 MBH input.

Domestic hot water can be provided by an optional tankless coil water heater on water boilers only. The steam boilers are tapped for Mega-Stor or Maxi-Therm indirect water heaters.

The hot water boiler has a maximum allowable working pressure of 50 PSI. The steam boiler has a maximum allowable working pressure of 15 PSI. Both have combustion efficiencies of

80.5 percent, meeting the requirements of

ASHRAE 90.1.

Durable materials Heat exchanger sections for the Series 32 boiler are constructed of cast iron that transfers heat quickly and efficiently. The burners are long lasting stainless steel, and designed for quiet, trouble free operation.

For optimum efficiency, the heating surfaces and vertical flues in the heat exchangers are cast with pins to increase the surface area.

This design gets the maximum heat from every BTU of fuel while keeping draft losses low.

Cast iron push nipples – which are used to assemble the heat exchanger sections – resist corrosion from petroleum-based chemicals including corrosion inhibitors, pump lubricants and antifreeze, and won’t break down from contact with flue gases.

Cast iron push nipples expand and contract at the same rate as the sections they join, so the entire assembly will remain water tight.

Modular design The Series 32 has a compact design which uses preassembled and tested base modules.

These modules have individual gas trains with a residential style combination gas valve and ignition control for simplicity and redundancy.

These base modules are combined to provide the appropriate input.

Heat exchanger sections are shipped unassembled, which makes them easier to han-dle, get through narrow doorways and assem-ble. The sections can be ordered factory assembled.

Products that serve customers well Like all

CROWN

boilers, the Series 32 design draws upon years of experience providing products that serve our customers well. The Series 32 joins an extensive lineup of boilers that heat homes and businesses with chimneys and those that require through the wall venting or sealed combustion. CROWN’s line provides hot water or steam, fueled by gas or oil. And all CROWN products are backed by competitive warranties and by outstanding technical support.

Standard Equipment For Natural Gas only Sections unassembled; end section tapped for use with optional tankless coil (water only) Base and gas train fully assembled and tested before shipment Water Trim: 30 PSI relief valve (50 PSI optional); pres-sure temperature gauge, L4006A high limit control Steam Trim: 15 PSI safety valve, steam gauge, gauge glass set, pressure limit control, #67 LWCO

Tankless Coil Model Number

For Use In Boilers

Continuous Draw Coil Ratings

40° - 140° Rise with 200°F Boiler

Temperature

Pressure Drop Through Coil

(psi)

Minimum Number of Sections

Required Per Coil

Clearance Requirement For

Coil Removal

T-1 All Sizes 4.5 GPM 8.8 5 27"

T-2 All Sizes 5.0 GPM 18.0 6 32"

T-3 32-665 & Larger 6.0 GPM 1.2 8 42"

All Series 32 boilers are furnished with left and right heater end sections. It is possible to install a heater in both ends provided the number of sections in the boiler in not less than the sum of the number of sections required for each heater as indicated in the table. Example: T2 + T3 = 6 + 8 = 14 section or larger boiler.

Data for Optional Tankless Coil Water Heater

Optional Equipment CSD-1 compliant control system Factory assembled sections Selection of LWCO, feeders and limit controls available Mega-Stor or Maxi-Therm indirect water heater

Features A. Built-in draft hood enables installation under low ceilings.

B. High performance tankless coil available on water boilers for domestic hot water.

C. Stainless steel burners assure long life and resist corrosion.

D. Gas controls meet full requirements of ANSI Z21.13. Gas train constructed of simple, residential style combination gas valves.

E. Supply tappings at top for ease of system piping.

A

B

C

D

E

Jacket Overall Length

'A' 'B'

Dia.

'C' Dia.

'D' Dia.

'E' Dia.

'F' Dia.

'G' Dia.

'H' 'J' 'K' 'L' 'M' 'N' 'P' 'R' 'S' 'T' 'U' 10" 12"

32-475 36 3/4 12 - - - - - - - - - - 18 3/8 27 3/16 - - - - - 1

32-570 42 1/4 10 10 - - - - 16 5/16 - - - - 12 15/16 32 5/8 - - - - 2 -

32-665 47 5/8 10 12 - - - - 19 1/16 - - - - 15 11/16 38 1/16 - - - - 1 1

32-760 53 1/8 12 12 - - - - 21 3/4 - - - - 15 11/16 43 1/2 - - - - - 2

32-855 58 1/2 12 12 - - - - 24 7/16 - - - - 18 3/8 48 15/16 - - - - - 2

32-950 64 12 12 - - - - 27 3/16 - - - - 18 3/8 54 3/8 - - - - - 2

32-1045 69 3/8 10 12 12 - - - 19 1/16 21 3/4 - - - 15 11/16 27 3/16 32 5/8 - - - 1 2

32-1140 74 7/8 12 12 12 - - - 21 3/4 21 3/4 - - - 15 11/16 32 5/8 32 5/8 - - - - 3

32-1235 80 1/4 10 12 12 - - - 21 3/4 27 3/16 - - - 18 3/8 32 5/8 38 1/16 - - - 1 2

32-1330 85 3/4 12 12 12 - - - 24 7/16 27 3/16 - - - 18 3/8 38 1/16 38 1/16 - - - - 3

32-1425 91 1/8 12 12 12 - - - 27 1/4 27 3/16 - - - 18 3/8 38 1/16 43 1/2 - - - - 3

32-1520 96 5/8 12 12 12 12 - - 21 3/4 21 3/4 21 3/4 - - 15 11/16 43 1/2 43 1/2 - - - - 4

32-1615 102 10 12 12 12 - - 19 1/16 24 7/16 27 3/16 - - 18 3/8 32 5/8 32 5/8 27 3/16 - - 1 3

32-1710 107 1/2 12 12 12 12 - - 21 3/4 24 7/16 27 3/16 - - 18 3/8 32 5/8 38 1/16 27 3/16 - - - 4

32-1805 112 7/8 12 12 12 12 - - 24 7/16 27 1/4 27 3/16 - - 18 3/8 32 5/8 32 5/8 38 1/16 - - - 4

32-1900 118 3/8 12 12 12 12 - - 27 1/4 27 1/4 27 3/16 - - 18 3/8 32 5/8 38 1/16 38 1/16 - - - 4

32-1995 123 3/4 10 10 12 12 12 - 16 5/16 21 3/4 27 3/16 27 3/16 - 18 3/8 38 1/16 38 1/16 38 1/16 - - 2 3

32-2090 129 1/4 12 12 12 12 12 - 21 3/4 21 3/4 24 7/16 27 3/16 - 18 3/8 32 5/8 32 5/8 27 3/16 27 3/16 - - 5

32-2185 134 5/8 12 12 12 12 12 - 21 3/4 24 7/16 27 3/16 27 3/16 - 18 3/8 38 1/16 32 5/8 27 3/16 27 3/16 - - 5

32-2280 140 1/8 12 12 12 12 12 - 24 7/16 27 3/16 27 3/16 27 3/16 - 18 3/8 32 5/8 32 5/8 32 5/8 32 5/8 - - 5

32-2375 145 1/2 12 12 12 12 12 - 27 3/16 27 3/16 27 3/16 27 3/16 - 18 3/8 32 5/8 32 5/8 32 5/8 38 1/16 - - 5

32-2470 151 10 10 12 12 12 12 16 5/16 21 3/4 27 3/16 27 3/16 27 3/16 18 3/8 32 5/8 32 5/8 38 1/16 38 1/16 - 2 4

32-2565 156 3/8 10 12 12 12 12 12 19 1/16 24 7/16 27 3/16 27 3/16 27 3/16 18 3/8 38 1/16 32 5/8 38 1/16 38 1/16 - 1 5

32-2660 161 7/8 12 12 12 12 12 12 21 3/4 24 7/16 27 3/16 27 3/16 27 3/16 18 3/8 32 5/8 32 5/8 32 5/8 27 3/16 27 3/16 - 6

32-2755 167 1/4 12 12 12 12 12 12 24 7/16 27 3/16 27 3/16 27 3/16 27 3/16 18 3/8 32 5/8 32 5/8 32 5/8 32 5/8 27 3/16 - 6

32-2850 172 3/4 12 12 12 12 12 12 27 3/16 27 3/16 27 3/16 27 3/16 27 3/16 18 3/8 32 5/8 32 5/8 32 5/8 32 5/8 32 5/8 - 6

1. All Dimensions Are Approximate.

Flue Outlet No. & Size

Boiler Model Number

Top Supply Location

Drafthood Size & Location

Dimensions (inches): When ordering specify water or steam

(BOTH SIDES)

3" RETURN TAPPING

5 1/2

24 1/4

4 3/4 4 3/4

'A'

' H ' ' J ' ' K ' ' L ' ' M ' ' N '

' B ' ' D ' ' E '' C ' ' F ' ' G '

' P ' ' R ' ' S ' ' T ' ' U ' 8 3/4

42 5/8

49 1/8

46 5/8

54 1/4

12 1/4

14 7/8

3" SUPPLY TAPPINGS

TANKLESS HEATER

OPENING (BOTH SIDES)

32 1/4 7 3/4

TOP VIEW

FRONT VIEWLEFT SIDE VIEW RIGHT SIDE VIEW

General Configuration of the Base Model

(See Manual If Required) Bypass Line

Gauge

Limit

Limit Manual Reset

Cut-Off Low Water

Valve Drain System

From

Valve Throttling

Valve Throttling

Line Cold Water

Expansion Tank

Circulator

Air Vent

Fill Valve

To System

Isolation Valve

Valve Isolation

Relief Valve

Recommended Hot Water Boiler Piping

Hot Water Boiler Supply and Return Pipe Sizes

Supply Supply Water Return Return Water Boiler Header Riser Connections Header Connections Model Size (in) Quantity Size (in) Size (in) Quantity Size (in)

32-475 2 1 2 2 1 2 32-570 2 1 2 2 1 2 32-665 2 1/2 1 2 1/2 2 1/2 1 2 1/2 32-760 2 1/2 1 2 1/2 2 1/2 1 2 1/2 32-855 2 1/2 1 2 1/2 2 1/2 1 2 1/2 32-950 3 1 3 3 1 3 32-1045 3 1 3 3 1 3 32-1140 3 1 3 3 1 3 32-1235 3 1 3 3 1 3 32-1330 3 1 3 3 1 3 32-1425 3 1 3 3 1 3 32-1520 3 2 2 1/2 3 2 2 1/2 32-1615 3 2 2 1/2 3 2 2 1/2 32-1710 3 2 2 1/2 3 2 2 1/2 32-1805 3 2 2 1/2 3 2 2 1/2 32-1900 3 2 3 3 2 3 32-1995 4 2 3 4 2 3 32-2090 4 2 3 4 2 3 32-2185 4 2 3 4 2 3 32-2280 4 2 3 4 2 3 32-2375 4 2 3 4 2 3 32-2470 4 2 3 4 2 3 32-2565 4 2 3 4 2 3 32-2660 4 2 3 4 2 3 32-2755 4 2 3 4 2 3 32-2850 4 2 3 4 2 3

Note: 1.The pipe sizes listed above are nominal trade sizes for Schedule 40 pipe.

CLOSE OR

SHOULDER

D

E

TEE

E

GATE VALVE

NIPPLE ONLY

HEADER - MINIMUM 24"

ABOVE NORMAL WATER LINE

GLOBE

VALVE

GATE

VALVE

D

D

C

C

C

A

RISER

A

SUPPLY MAIN(S) TO BE TAKEN OFF TOP OF

HEADER VERTICALLY OR AT A 45° ANGLE

PIPE DISCHARGE TO

A SAFE LOCATION

MAKE-UP

FROM SYSTEM

DOWN TO BOILER

PREFERRED PIPING

ALTERNATE PIPING

CONNECTION

E

E

E

E

E

EQUALIZER

RETURN

CLEAN-OUT PLUG

TEE WITH

WET RETURN - PITCH

PROVIDE DRAIN VALVE FOR

FLUSHING BOILER AND SYSTEM

WATER"Y" HARTFORD RETURN

C A

A

TO SYSTEM

TO SYSTEM

B

A

SUPPLY

24" MIN

SUPPLY

ARISER

ARISER

N.W.L.

LINE

FLOOR

36 1/2"

KEEP BOILER

FILLED TO NORMAL

WATER LINE

2"

BOILER

FRONT OF

STEAM SUPPLY MAIN(S) - SLOPE DOWN FROM HIGH POINT

ABOVE BOILER AND DRIP END(S) INTO WET RETURN -

LOW POINT OF SUPPLY MAIN(S) TO BE NOT LESS THAN

28" ABOVE NORMAL WATER LINE.

INSTALL SAFETY VALVE

ON SIDE OPPOSITE TRIM

Three Supply Connections;

Gravity Return

Minimum Pipe Sizes

Minimum Pipe Sizes

FOR A GIVEN SIZE BOILER IN THIS RANGE.

USING THE LARGEST PIPE DIAMETER AS INDICATED IN B

TO FABRICATE THE ENTIRE LENGTH OF THE STEAM HEADER

NOTE: FOR BOILER MODELS 1045 THRU 1520 IT IS PERMISSIBLE

2" 2-1/2"

6" 4" 3"

32-152032-142532-133032-123532-114032-1045 A B

D C

E

5"

3" 3" 3" 3" 3"

2-1/2" 2"

5" 5" 5" 5" 2-1/2"2-1/2"2-1/2"2-1/2"

2"2"2"2"

4" 4" 4" 4" 4"

STEAM SUPPLY MAIN(S) - SLOPE DOWN

FROM HIGH POINT ABOVE BOILER AND

DRIP END(S) INTO WET RETURN - LOW

POINT OF SUPPLY MAIN(S) TO BE NOT LESS

THAN 28" ABOVE NORMAL WATER LINE

A

A

A

A

A

B

B B

C

D

D D

C

D

2"

24" MIN

36-1/2"

N.W.L.

FLOOR

LINE

RISER*

RISER

SUPPLY

FRONT OF

BOILER

KEEP BOILER

FILLED TO NORMAL

WATER LINE

HEADER - MINIMUM 24"

ABOVE NORMAL WATER LINE

SUPPLY MAIN(S) TO BE TAKEN OFF TOP OF

HEADER VERTICALLY OR AT A 45∞ ANGLE

PIPE DISCHARGE TO

A SAFE LOCATION

RETURN

"Y"

TEE

GATE VALVE

MAKE-UP

HARTFORD RETURN

PREFERRED PIPING

WET RETURN - PITCH

DOWN TO BOILER

CLOSE OR

SHOULDER

NIPPLE ONLY

PROVIDE DRAIN VALVE FOR

FLUSHING BOILER AND SYSTEMCLEAN-OUT PLUG

TEE WITH

TO SYSTEM

EQUALIZER

FROM SYSTEM

WATER

C

B

D

GLOBE

VALVE

GATE

VALVE

D

D

ALTERNATE PIPING

CONNECTION

INSTALL SAFETY VALVE

ON SIDE OPPOSITE TRIM

* SECOND SUPPLY RISER OPTIONAL

2"2"

2-1/2"

5"

3"

2-1/2"

4"

3"

2"

2-1/2" 4"

3"

2"

2-1/2" 4"

3"

1-1/2"

2"

4"

3"3"

1-1/2"

2"

3"

C

D

B

A

32-475* 32-570 32-665 32-760 32-855 32-950

Recommended Steam Boiler Piping

One or Two Supply Connections;

Gravity Return

Minimum Pipe Sizes

NOTE: FOR BOILER MODELS 1615 THRU 2850 IT IS PERMISSIBLE TO FABRICATE THE ENTIRE LENGTH OF THE STEAM HEADER USING THE LARGEST PIPE DIAMETER AS INDICATED IN C, D OR E FOR A GIVEN SIZE BOILER IN THIS RANGE.

2"

6"

2"

1615*

2-1/2"

6"

4"

3"

6"

2-1/2"

1710*

6"

4"

3"

6"

2-1/2"

1805*

3"

6"

4"

3"

6"

2-1/2"

1900*

3"

6"

4"

3"

6"

2-1/2"

1995*

3"

6"

4"

3"

6"

2-1/2"

2090*

3"

6"

4"

3"

8"

2-1/2"

2185**

3"

8"

6"

4"

3"

8"

2-1/2"

2280**

3"

8"

6"

4"

3"

8"

2-1/2"

2375**

3"

8"

6"

4"

3"

8"8"8"8"8"F

4"4"4"4"3"G

3"3"

6"6"6"6"

2850***2755***2565** 2660***2470**

3"

4"4"

3"3"

4"4"

3"3"

4"

6"C

B

A

8"

8"

H 2-1/2" 3" 3"

8"8"-

8"8"8"8"

-E

D

* FOUR SUPPLY RISERS REQUIRED ** FIVE SUPPLY RISERS REQUIRED *** SIX SUPPLY RISERS REQUIRED

A

RISER

RISER

RISER

RISER

SUPPLY

SUPPLY

SUPPLY

A

A

A

A

A

A

A

A

SUPPLY

SUPPLY

A

D

C

B

A

F F

E F

SUPPLY MAIN(S) TO BE TAKEN OFF TOP

OF HEADER VERTICALLY OR AT A 45° ANGLE

ABOVE NORMAL WATER LINE

HEADER - MINIMUM 24"

F

TO SYSTEM

RISERA

CONNECTION

ALTERNATE PIPING

H

H

VALVE

GATE

VALVE

GLOBE

H

G

WATER

FROM SYSTEM

EQUALIZER

TEE WITH

CLEAN-OUT PLUG

FLUSHING BOILER AND SYSTEM

PROVIDE DRAIN VALVE FOR

NIPPLE ONLY

SHOULDER

CLOSE OR

DOWN TO BOILER

WET RETURN - PITCH

PREFERRED PIPING

HARTFORD RETURNMAKE-UP

GATE VALVE

TEE

"Y"

RETURN

PIPE DISCHARGE TO

A SAFE LOCATION

WATER LINE

FILLED TO NORMAL

KEEP BOILER

BOILER

FRONT OF

RISER

LINE

FLOOR

N.W.L.

36-1/2"

24" MIN

2"

H

G

HH

H

G

A

PIPE

DISCHARGE

TO A SAFE

LOCATION

INSTALL SAFETY VALVE ON SIDE

OPPOSITE TRIM (2280 & SMALLER)

STEAM SUPPLY MAIN(S) - SLOPE DOWN FROM

HIGH POINT ABOVE BOILER AND DRIP END(S)

INTO WET RETURN - LOW POINT OF SUPPLY

MAIN(S) TO BE NOT LESS THAN 28" ABOVE

NORMAL WATER LINE.

INSTALL SAFETY VALVE AT THIS LOCATION

FOR BOILER MODELS 2375 & HIGHER.

Recommended Steam Boiler Piping

Four, Five or Six Supply Connections;

Gravity Return

Since 1949, homeowners have depended on us for quality, value and service 3633 I Street, P. O. Box 14818 Philadelphia, PA 19134 Phone: (215) 535-8900 Fax: (215) 535-9736 Visit us on the web: www.crownboiler.com

S32-11/07 (10M) R-1

PN980535

Water

(MBH) (MBH) (Sq. ft) (MBH) (MBH) (Gal) (Gal)

32-475 6 475 380 1188 285 330 80.5 28.58 39.80 11.4

32-570 7 570 456 1425 342 397 80.5 32.65 45.47 13.6

32-665 8 665 532 1663 399 463 80.5 36.72 51.14 15.9

32-760 9 760 608 1900 456 529 80.5 40.79 56.81 18.2

32-855 10 855 684 2138 513 595 80.5 44.86 62.48 20.4

32-950 11 950 760 2376 570 661 80.5 48.93 68.15 22.7

32-1045 12 1045 836 2613 627 727 80.5 53.00 73.82 25.0

32-1140 13 1140 912 2851 684 793 80.5 57.07 79.49 27.2

32-1235 14 1235 988 3088 741 859 80.5 61.14 85.16 29.5

32-1330 15 1330 1064 3326 798 925 80.5 65.21 90.83 31.8

32-1425 16 1425 1140 3563 855 991 80.5 69.28 96.50 34.1

32-1520 17 1520 1216 3801 912 1057 80.5 73.35 102.17 36.3

32-1615 18 1615 1292 4050 972 1123 80.5 77.42 107.84 38.6

32-1710 19 1710 1368 4312 1035 1190 80.5 81.49 113.51 40.9

32-1805 20 1805 1444 4575 1098 1256 80.5 85.56 119.18 43.1

32-1900 21 1900 1520 4839 1161 1322 80.5 89.63 124.85 45.4

32-1995 22 1995 1596 5102 1225 1388 80.5 93.70 130.52 47.7

32-2090 23 2090 1672 5366 1288 1454 80.5 97.77 136.19 49.9

32-2185 24 2185 1748 5628 1351 1520 80.5 101.84 141.86 52.2

32-2280 25 2280 1824 5890 1414 1586 80.5 105.91 147.53 54.5

32-2375 26 2375 1900 6143 1474 1652 80.5 109.98 153.20 56.8

32-2470 27 2470 1976 6392 1534 1718 80.5 114.05 158.87 59.0

32-2565 28 2565 2052 6638 1593 1784 80.5 118.12 164.54 61.3

32-2660 29 2660 2128 6884 1652 1850 80.5 122.19 170.21 63.6

32-2755 30 2755 2204 7130 1711 1917 80.5 126.26 175.88 65.8

32-2850 31 2850 2280 7376 1770 1983 80.5 130.33 181.55 68.1

WATER

VOL. 2 BHP

OUTPUT3

1. Water Volume Total To Normal Water Line (Steam Boiler).

2. Water Volume Total (Water Boiler).

3. Ratings Based on 33,475 Btuh Per Boiler Horsepower

BASIC

BOILER

MODEL

NUMBER

OF

SECTIONS

WATER

VOL. 1

NATURAL GAS ONLY

HEATING

CAPACITY

Combustion Efficiency

INPUT

I=B=R NET RATING

Steam STEAM WATER

SHIPPING

WEIGHT

(APPROX)

Specifications: When ordering specify water or steam

Not for installation on combustible flooring