Crown Boiler 32-2090WN User manual

Brand: Crown Boiler

Model: 32-2090WN

Category: Water heaters & boilers

Type: User manual

D E S I G N E D T O L E A D

Tel: (215) 535-8900 • Fax: (215) 535-9736 • www.crownboiler.com

Manufacturer of Hydronic Heating Products

P.O. Box 14818 3633 I. Street

Philadelphia, PA 19134

Series 32

Gas-Fired Natural Draft Steam or Water Boilers

INSTALLATION AND OPERATING INSTRUCTIONS

These instructions must be affixed on or adjacent to the boiler.

WARNING: Improper installation,

adjustment, alteration, service or

maintenance can cause property

damage, injury, or loss of life. For

assistance or additional information,

consult a qualified installer, service

agency or the gas supplier. Read

these instructions carefully before

installing.

Table of Contents

I. Product Description 1

II. Specifications 2

III. Before Installing 7

IV. Locating the Boiler 7

V. Knockdown Boiler Assembly Instructions 10

VI. Air for Combustion & Ventilation 19

VII. Venting 23

VIII. Steam Boiler Piping & Trim Installation 27

A. Heating System Piping 27

B. Indirect Water Heater Piping 36

IX. Water Boiler Piping 37

A. Heating System Piping 37

B. Tankless Heater Piping 42

X. Gas Piping 44

XI. Control System Wiring 45

A. Standard Steam / Water 45

B. CSD-1 Steam / Water 46

XII. Start-Up & Checkout 50

XIII. Service & Maintenance 56

XIV. Parts & Cartons Contents 58

I Product Description

The Series 32 boilers are low pressure cast iron gas fired steam or hot water boilers designed for use in commercial heating

applications. These boilers are Category I draft diverter equipped appliances, which must be vented by natural draft using a

lined masonry or listed metal chimney system. An adequate supply of air for combustion, ventilation and dilution of flue gases

must be available in the boiler room. This boiler is intended for use with natural gas only.

The Series 32 may be used on low pressure steam heating systems or forced hot water heating systems and is intended for

installation in “closed” systems only. Hot water Series 32 boilers are available with up to two optional tankless heaters for

domestic hot water generation.

Figure 1: Base Model - General Configuration

II Specifications

Table 1A: Dimensional Data

Jacket

Overall

Len

'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"

32-475W(S)N 36 3/4 12 ----- -----18 3/827 3/16-----1

32-570W(S)N 42 1/4 10 10 ----16 5/16 ----12 15/1632 5/8----2-

32-665W(S)N 47 5/8 10 12 ----19 1/16 ----15 11/1638 1/16----11

32-760W(S)N 53 1/8 12 12 ----21 3/4 ----15 11/1643 1/2-----2

32-855W(S)N 58 1/2 12 12 ----24 7/16 ----18 3/848 15/16 -----2

32-950W(S)N 64 12 12 ----27 3/16 ----18 3/854 3/8-----2

32-1045W(S)N 69 3/8 10 12 12 - - - 19 1/16 21 3/4 - - - 15 11/16 27 3/16 32 5/8 - - - 1 2

32-1140W(S)N 74 7/8 12 12 12 - - - 21 3/4 21 3/4 - - - 15 11/16 32 5/8 32 5/8 - - - - 3

32-1235W(S)N 80 1/4 10 12 12 - - - 21 3/4 27 3/16 - - - 18 3/8 32 5/8 38 1/16 - - - 1 2

32-1330W(S)N 85 3/4 12 12 12 - - - 24 7/16 27 3/16 - - - 18 3/8 38 1/16 38 1/16 - - - - 3

32-1425W(S)N 91 1/8 12 12 12 - - - 27 1/4 27 3/16 - - - 18 3/8 38 1/16 43 1/2 - - - - 3

32-1520W(S)N 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

32-1615W(S)N 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

32-1710W(S)N 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

32-1805W(S)N 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

32-1900W(S)N 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

32-1995W(S)N 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

32-2090W(S)N 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

32-2185W(S)N 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

32-2280W(S)N 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

32-2375W(S)N 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

32-2470W(S)N 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

32-2565W(S)N 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

32-2660W(S)N 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

32-2755W(S)N 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

32-2850W(S)N 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

Table 1B: Specifications

Water

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

32-475W(S)N 6 475 380 1188 285 330 80-1/2 28.58 39.80

11.4

32-570W(S)N 7 570 456 1425 342 397 80-1/2 32.65 45.47

13.6

32-665W(S)N 8 665 532 1663 399 463 80-1/2 36.72 51.14

15.9

32-760W(S)N 9 760 608 1900 456 529 80-1/2 40.79 56.81

18.2

32-855W(S)N 10 855 684 2138 513 595 80-1/2 44.86 62.48

20.4

32-950W(S)N 11 950 760 2376 570 661 80-1/2 48.93 68.15

22.7

32-1045W(S)N 12 1045 836 2613 627 727 80-1/2 53.00 73.82

25.0

32-1140W(S)N 13 1140 912 2851 684 793 80-1/2 57.07 79.49

27.2

32-1235W(S)N 14 1235 988 3088 741 859 80-1/2 61.14 85.16

29.5

32-1330W(S)N 15 1330 1064 3326 798 925 80-1/2 65.21 90.83

31.8

32-1425W(S)N 16 1425 1140 3563 855 991 80-1/2 69.28 96.50

34.1

32-1520W(S)N 17 1520 1216 3801 912 1057 80-1/2 73.35 102.17

36.3

32-1615W(S)N 18 1615 1292 4050 972 1123 80-1/2 77.42 107.84

38.6

32-1710W(S)N 19 1710 1368 4312 1035 1190 80-1/2 81.49 113.51

40.9

32-1805W(S)N 20 1805 1444 4575 1098 1256 80-1/2 85.56 119.18

43.1

32-1900W(S)N 21 1900 1520 4839 1161 1322 80-1/2 89.63 124.85

45.4

32-1995W(S)N 22 1995 1596 5102 1225 1388 80-1/2 93.70 130.52

47.7

32-2090W(S)N 23 2090 1672 5366 1288 1454 80-1/2 97.77 136.19

49.9

32-2185W(S)N 24 2185 1748 5628 1351 1520 80-1/2 101.84 141.86

52.2

32-2280W(S)N 25 2280 1824 5890 1414 1586 80-1/2 105.91 147.53

54.5

32-2375W(S)N 26 2375 1900 6143 1474 1652 80-1/2 109.98 153.20

56.8

32-2470W(S)N 27 2470 1976 6392 1534 1718 80-1/2 114.05 158.87

59.0

32-2565W(S)N 28 2565 2052 6638 1593 1784 80-1/2 118.12 164.54

61.3

32-2660W(S)N 29 2660 2128 6884 1652 1850 80-1/2 122.19 170.21

63.6

32-2755W(S)N 30 2755 2204 7130 1711 1917 80-1/2 126.26 175.88

65.8

32-2850W(S)N 31 2850 2280 7376 1770 1983 80-1/2 130.33 181.55

68.1

INPUT

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

I=B=R NET RATING

St eam

WATER

VOL.

BHP

OUTPUT

2. Water Volume Total (Water Boiler).

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

BASIC BOILER

MODEL

NUMBER

SECTIONS

WATER

VOL.

NATURAL GAS ONLY

HEATING

CAPACITY

Combustion

Effy. %

Figure 2a: Series 32 Steam Boilers - Arrangement Of Steam Riser Connections, Draft Hoods And Base Assemblies

Figure 2b: Series 32 Water Boilers - Arrangement Of Water Supply Connections, Draft Hoods And Base Assemblies

III Before Installing

1) Safe, reliable operation of this boiler depends upon installation by a professional heating contractor in strict

accordance with this manual and the requirements of the authority having jurisdiction.

• In the absence of an authority having jurisdiction, installation must be in accordance with this manual and the latest

edition of the National Fuel Gas Code, ANSI Z223.1.

• Where required by the authority having jurisdiction, this installation must conform to the latest edition of the

Standard for Controls and Safety Devices for Automatically Fired Boilers (ANSI/ASME CSD-1)

2) Make sure that a properly sized chimney is available and is in good condition. Consult the authority having

jurisdiction, Part VII of this manual, and the National Fuel Gas Code for additional information on venting

requirements.

3) Make sure that the boiler is correctly sized.

4) This boiler is designed and listed for use with natural gas only.

5) Boilers installed at altitudes above 2000 ft. require different main burner orifice than those at sea level. Make sure that

the boiler is configured for use at the correct altitude.

6) If this boiler was received as a knockdown boiler, follow the instructions in Section V to assemble the boiler.

IV Locating the Boiler

1) Minimum required boiler room volumes are shown in Table 2. To find the volume of the boiler room calculate:

Boiler Room Volume (ft

) = Length (ft) x Width (ft) x Height (ft)

If the height is greater than 8 ft for the room height, use 8 ft for the height in the above equation.

2) Observe the minimum clearances as shown in Table 3. These clearances apply to all combustible construction, as well as

noncombustible walls, ceilings and doors. Also see Figure 3.

3) This boiler must be installed on a non-combustible floor. A concrete pad is not sufficient to protect combustible

flooring.

4) The boiler must be installed on a hard level surface.

5) Do not install this boiler in a location where gasoline or other flammable vapors or liquids will be stored or used. Do

not install this boiler in an area where large amounts of airborne dust will be present, such as a workshop.

WARNING

All Series 32 boilers must be installed in rooms that are large in comparison with the size of

the equipment and must be installed with the clearances listed in Table 2. Such a room will

have a volume equal to at least 16 times the total volume of the boiler.

WARNING

This Product Must be Installed By A Licensed Plumber Or Gas Fitter when Installed Within

The Commonwealth Of Massachusetts.

If This Boiler is Equipped With a Tankless Heater, Tankless Heater Piping Must be Installed

by a Licensed Plumber When Boiler is Installed Within the Commonwealth of Massachusetts.

Table 2: Minimum Room Volumes Based On Sixteen Times Boiler Volume By Model Size

Boiler

Model

Over All

Length

Jacket

Over All

Depth

Jacket

Over All

Height

Floor To

Top Of

Jacket

Boiler

Volume

(Ft3)

Minimum

Room

Volume

(Ft3)

32-475 36 3/4 32 1/4 46 5/8 32.0 511.7

32-570 42 1/4 32 1/4 46 5/8 36.7 587.4

32-665 47 5/8 32 1/4 46 5/8 41.4 663.1

32-760 53 1/8 32 1/4 46 5/8 46.2 738.8

32-855 58 1/2 32 1/4 46 5/8 50.9 814.5

32-950 64 32 1/4 46 5/8 55.6 890.2

32-1045 69 3/8 32 1/4 46 5/8 60.4 965.9

32-1140 74 7/8 32 1/4 46 5/8 65.1 1041.6

32-1235 80 1/4 32 1/4 46 5/8 69.8 1117.3

32-1330 85 3/4 32 1/4 46 5/8 74.6 1193.0

32-1425 91 1/8 32 1/4 46 5/8 79.3 1268.7

32-1520 96 5/8 32 1/4 46 5/8 84.0 1344.4

32-1615 102 32 1/4 46 5/8 88.8 1420.1

32-1710 107 1/2 32 1/4 46 5/8 93.5 1495.8

32-1805 112 7/8 32 1/4 46 5/8 98.2 1571.5

32-1900 118 3/8 32 1/4 46 5/8 103.0 1647.2

32-1995 123 3/4 32 1/4 46 5/8 107.7 1722.9

32-2090 129 1/4 32 1/4 46 5/8 112.4 1798.6

32-2185 134 5/8 32 1/4 46 5/8 117.1 1874.3

32-2280 140 1/8 32 1/4 46 5/8 121.9 1950.1

32-2375 145 1/2 32 1/4 46 5/8 126.6 2025.8

32-2470 151 32 1/4 46 5/8 131.3 2101.5

32-2565 156 3/8 32 1/4 46 5/8 136.1 2177.2

32-2660 161 7/8 32 1/4 46 5/8 140.8 2252.9

32-2755 167 1/4 32 1/4 46 5/8 145.5 2328.6

32-2850 172 3/4 32 1/4 46 5/8 150.3 2404.3

Figure 3: Clearances To Combustible Construction

6) The boiler should be located as close to the chimney as possible.

7) Do not install this boiler directly on a surface that may get wet. Raise the boiler on a pad.

Clearances Required For Removal Of Tankless Heater

T-1 T-2 T-3

Left Side 24" 18" (Controls) 27" 32" 42"

Right Side 24" 18" (Controls) 27" 32" 42"

Front 24" 36" (Cleaning-Burner Removal) -------- -------- --------

Rear 24" 36" (Cleaning) -------- -------- --------

Top 24" --------------------- -------- -------- --------

Minimum Clearance - Jacket

To Combustible Or Non-

Combustible Construction

Service Clearance To Non-

Combustible Construction

Table 3: Minimum Clearances to Combustibles

V Knockdown Boiler Assembly Instructions

A. Prior To Assembly

1) Thoroughly inspect the cast iron heat exchanger sections for any shipping damage, i.e. cracks in the castings, broken lugs

or punctures due to mishandling.

2) Do not use a damaged heat exchanger section. Replace it with an undamaged heat exchanger section.

3) Keep the base in the shipping carton until it is time to perform the assembly. This keeps foreign material from contami-

nating the burners or creating other hazards. Do not use the base assembly if there are any signs of visible damage.

4) Review all of the installation requirements in this installation manual.

5) Verify that all needed components are on hand. A complete list of all sections and cartons that should be on hand,

along with their contents, can be found in the Parts Section. A summary of the cartons and their contents is shown

below. All boilers except the 32-475 use multiple base modules and therefore require multiple Base Cartons and

Intermediate Cartons. All boilers larger than the 32-855 require multiple Section Joiner Cartons. Some parts, such as

jacket screws and jacket mounting brackets are packed in both the Base Carton and the Base Side Panel Carton.

B. Base Assembly

1) Each base module is tested and shipped assembled.

a. All boilers are assembled using base modules with inputs of 285, 380 and 475 MBH

b. The model 475 boiler requires only a single base module. All other boiler combinations require multiple

base module subassemblies. See Figure 2 for the proper order of assembly.

c. Join Base Sub-assemblies together. Use (4) 3/8”-16 x 3/4” screws, nuts and washers to attach subassemblies. (See

Figure 4)

d. Assemble the base in the location where the boiler is to be installed. Refer to Sections III and IV in this

manual for additional information on placement.

e. Once the base modules are assembled, install the base end panels. These base end panels must be installed

prior to assembling the sections.

f. The base must be level in both directions and supported under all feet. Shim and grout under base if

necessary.

g. Verify that the front and sides of the base are square.

h. Place cardboard covering over the top of the burners to protect them during the assembly of the boiler

sections.

PACKAGE

JACKET SIDE PANEL CARTON

TANKLESS HEATER CARTON

POP SAFETY OR RELIEF VALVE

FITTINGS FOR MOUNTING POP SAFETY OR RELIEF VALVE

WARRANTY

PUSHNIPPLE GAUGE

RATING PLATE

SEALANT FOR SEALING HEAT EXCHANGER TO BASE

TANKLESS COIL OPENING COVER PLATES AND HARDWARE

SSORTED FITTINGS

INSTALLATION M ANUAL

USER'S M ANUAL

TANKLESS HEATER (IF USED)

LEFT AND RIGHT SIDE JACKET PANELS

LIMIT CONTROLS

GAUGE

LOW WATER CUT-OFF (CSD-1 BOILERS ONLY)

TANKLESS COIL OPENING COVER PLATES AND HARDWARE

SSORTED FITTINGS

LIMIT CONTROLS

GAUGE

LOW WATER CUT-OFFS

PUSHNIPPLE LUBRICANT

SECTION SEALING COMPOUND

BASE SIDE PANELS

BRACKETS AND HARDWARE FOR ATTACHING JACKET AND FLUE COLLECTOR TO SIDES OF BOILER

WATER TRIM CARTON

STEAM TRIM CARTON

BOILER CARTON

SUM MARY OF CONTENTS

BASE MODULE

BRACKETS AND HARDWARE FOR ATTACHING JACKET AND FLUE COLLECTOR

FRONT, TOP, REAR JACKET PANELS

FLUE COLLECTOR

PUSHNIPPLES

TIE ROD HARDWARE

BASE CARTON

INTERMEDIATE CARTON

SECTION JOINER CARTON

BASE SIDE PANEL CARTON

Figure 4: Multiple Base Assembly

C. Section Assembly

1) Clean the boiler sections inside and out to remove dirt due to shipping and handling.

2) Clean all nipples and nipple ports with kerosene immediately prior to section assembly.

3) Set the left end section on the base so that the locating lugs on the bottom of the section go inside the front and

rear base panels. Left end sections are identified by “LEH” cast on the section. Right end sections are identified

by “REH” cast on the section.

4) Apply the Loctite 592 lubricant/sealant furnished to two nipples and the nipple ports in the left section.

5) Start each nipple by hand in the nipple port and bump carefully with a wooden block to set. As this is done, check

the nipple frequently with the nipple gauge to verify that the nipple is square in the port and not cocked (see

Figure 5). Continue to bump the nipple until the nipple gauge just touches the ground surface as measured in two

directions 90 degrees apart.

6) Apply the “joint sealer” to all ground surfaces on the left end section.

7) Carefully join the first intermediate section with the left end section. Bump lightly to secure.

8) Install 5/8" nuts and washers on one end of each of three 9 ¾” tie rods. Install one of these tie rods in each of the

three bosses in the left and intermediate section. Lubricate the other end of each of these tie rods with heavy oil or

grease. Install 5/8" nuts and washers on the lubricated ends. Finger tighten.

9) Draw the two sections together slowly and evenly, tightening each tie rod a little at a time so that the sections are

evenly spaced. KEEP THE NIPPLES ALIGNED WITH THE NIPPLE PORTS – DO NOT DRAW UP THE

SECTIONS IF THE NIPPLES ARE COCKED. Continue drawing up the sections in this manner until the

ground surfaces on each section are touching.

10) Repeat Steps (4-9) to assemble the remaining sections. After approximately five sections have been drawn

together, use a pinch bar to insert the wood wedges supplied under the last intermediate section to raise it above

the base. This will make it easier to assemble subsequent sections, particularly the right end section. As each

section is drawn up, move the wedges under that section.

11) After all sections have been drawn up, verify that the bottom lugs on the left end section are still against the left

end base panel. Using a pinch bar, remove the wood wedges and carefully lower the right end of the assembled

block onto the base.

12) Install four block anchors using 3/8 x 2" cap screws, nuts and washers (Figure 6).

13) Loosen all tie rod nuts so that they are finger tight.

CAUTION

Seating the nipples in accordance with the above instructions will make drawing the sections

together easier and assure water tight joints.

CAUTION

Some boilers use intermediate sections with supply tappings. When these sections are used, it is

critical that they are located in the correct position. When assembling the sections refer to

Figure 2 to verify that they are assembled in the correct order.

Figure 6: Assembly Of Sections

Figure 5: Use Of Nipple Gauge

14) Install the tankless coil/s and/or cover plates using the gaskets and 3/8 x 7/8 bolts and washers provided (see

Figure 7).

15) Test assembled block for leaks. Unless local codes have other requirements, use the following procedure:

a) Run a hose from the water service to one of the lower tappings. Install a ball or gate valve in one of the

tappings on the top of the block and connect the other end of this valve to a drain. Install a gauge in any

other convenient tapping. Plug all remaining unused tappings (See Figure 8).

b) Fill the boiler until a steady stream of water is observed going down the drain.

c) Slowly close the valve until the pressure in the boiler reads between 10 and 50 psi. DO NOT EXCEED.

d) Carefully examine all parts of the boiler block assembly for leaks.

e) Drain the boiler and remove all plugs from tappings that will be used for connections and trim (see

Piping Sections in this manual).

16) Use the supplied Resbond sealant to seal the joint between the assembled block and the base.

17) Inspect the joints between the sections for any areas that are not flue gas tight. Seal any areas found with the

remaining Resbond sealant.

Figure 8: Testing Boiler Assembly For Leaks

Figure 7: Tankless Heater Installation

D. Draft Hood Installation

1) The model 32-475 requires only one draft hood. All other boilers require multiple draft hoods. WHEN MUL-

TIPLE HOODS ARE USED THEY MUST BE ARRANGED SO THAT EACH HOOD IS OVER A COR-

RESPONDING SIZED BASE MODULE.

2) Use the 1" x ½” Cerablanket strips provided to seal the draft hoods to the block assembly. To do this, lay the strips

along the top of the block in the locations that will be under the edges of the draft hood (see Figure 9). Overlap

the Cerablanket strips at the corners.

3) Install the rear panel support brackets using #10 x ½ sheet metal screws (Figure 3).

4) On the left end section, insert a 5/8 x 4 threaded stud through the available hole in the top rear tie rod lug. Use a 5/

8 nut and washer on each side of the lug to attach this stud, making sure that the stud is approximately centered on

the lug (See Figure 10). In the same manner, install 5/8 x 4" studs on the right end section and on all intermediate

sections that span the joint between base modules.

5) Place the left-most draft hood on the boiler. Insert two 5/16 x 3 carriage bolts through the holes in the lip on the

front of the hood with the head of the bolts on the underside of this lip. Thread a 5/16 washer and brass wing nuts

on each of these bolts. Slip the bolt heads into the pockets on the top of the intermediate sections (Figure 11).

Tighten just sufficiently enough to hold the hood in place.

6) Hang a rear tie rod channel bracket on the 4" stud installed in the left end section (Figure 12a).

7) Facing the rear of the boiler, find the square mounting holes underneath the draft hood. Drop a 5/16 x 5" carriage

bolt through this hole and through the hole in the rear tie rod channel bracket. Loosely secure with a wing nut and

washer (Figure 12b). Install a second rear tie rod channel bracket on the other side of the draft hood.

8) Using a plumb bob, adjust the rear tie rod channel brackets so the jacket mounting holes in the rear tie rod channel

brackets line up with the holes in the jacket rear panel support brackets on the base modules.

9) Tighten the 5/16 wing nuts on the front and back of the draft hood.

10) Repeat Steps 5-9 to install the remaining draft hoods.

NOTE

Installation of the draft hoods will be easier if one person supports the rear of the hood while

another installs the carriage bolts, nuts and washers.

CAUTION

Before tightening the draft hood hold-down nuts, make sure the gasketing is properly located

under the draft hood. Recheck the positioning of the gaskets after tightening the nuts and make

adjustments as necessary.

Figure 9: Draft Hood Gasket Installation Figure 10: Hardware Arrangement for Rear Tie

Rod Mounting Bracket Installation

Figure 12b: Rear Attachment Of Draft Hood

Figure 11: Front Attachment Of Draft Hood Figure 12a: Mounting Rear Tie Rod Channel

Bracket

NOTE

Before installing the jacket, make sure to plug any tappings which are not going to be used. Also make sure that no

tappings are plugged which will be needed later for piping the boiler. See Sections VIII and IX for piping and trim

installation.

D. Jacket Assembly Instructions

1) On the left and right side base panels attach the jacket side panel zee bracket and the jacket top support

bracket end angle with #10 x 1/2” sheet metal screws as shown in Figure 13.

2) Jacket top support brackets are required at the joints between base modules and at each end of the base

assembly. Attach the jacket top support brackets to the base front panel(s) with #10 x 1/2” sheet metel

screws as shown in Figure 13. Also fasten the jacket top support brackets located on each end of the

assembly to the jacket top support bracket end angles using #10 x 1/2” sheet metal screws.

3) Remove the appropriate knockouts from the side jacket panels.

4) Hang the left hand jacket side panel assembly in the slot of the jacket top support bracket and over the rear

brackets of the boiler assembly. Fasten the jacket side panel to the jacket side panel zee bracket, the jacket

rear panel support bracket, the rear tie rod channel bracket and the jacket top support bracket using

#10 x 1/2” sheet metal screws.

5) Repeat the instructions in step 3 to install the right side panel.

6) Attach the jacket rear panel assembly(s) to the jacket rear panel support brackets and the tie rod channel

brackets using #10 x 1/2” sheet metal screws.

7) Before installing the jacket top panel(s) locate the position of any intermediate supply risers and remove the

appropriate knockouts.

8) Install the jacket top panel(s) by placing the left and right flanges of the jacket top panel(s) in the slots of the

jacket top support brackets and attach using #10 x 1/2” sheet metal screws.

9) Attach the door knobs to the removable jacket front panel(s) with 8-32 x 1/2” machine screws.

10) Hang the jacket front panel(s) over the front flange of the jacket top panel while making sure the bottom of

the door drops into the slots in the gas manifold bracket.

Figure 13: Jacket Mounting Bracket Arrangement

Figure 14: Exploded View Of Jacket Assembly

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Crown Boiler 32-2090WN User manual

Brand: Crown Boiler

Model: 32-2090WN

Category: Water heaters & boilers

Type: User manual

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Crown Boiler 32-2090WN User manual

Crown Boiler 32-2090WN User manual

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