PEERLESS SERIES 211A Manuale di istruzioni

211A

Boilers – Steam

Series

Gas

Installation,

Operation &

Maintenance

Manual

USING THIS MANUAL 1

A. FOLLOW THE PIPING GUIDELINES . . . . . . .1

B. CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . .1

C. SPECIAL ATTENTION BOXES . . . . . . . . . . . .1

1. PREINSTALLATION 2

A. ACCESSIBILITY CLEARANCES . . . . . . . . . . .2

B. COMBUSTIBLE CONSTRUCTION

CLEARANCES . . . . . . . . . . . . . . . . . . . . . . . .2

C. AIR FOR COMBUSTION & VENTILATION . . .2

D. CHIMNEY OR VENT . . . . . . . . . . . . . . . . . . . .5

E. BOILER SETTING . . . . . . . . . . . . . . . . . . . . . .7

F. WATER QUALITY AND MAKE-UP . . . . . . . . .7

G. INSTALLATION SURVEY . . . . . . . . . . . . . . . .7

2. ASSEMBLE THE BASE 9

A. BASE ASSEMBLY . . . . . . . . . . . . . . . . . . . . .9

B. INSTALL THE PILOT BURNERS . . . . . . . . . .10

3. PLACE THE BOILER SECTIONS 14

A. PREPARATION . . . . . . . . . . . . . . . . . . . . . . .14

B. PLACING THE SECTIONS . . . . . . . . . . . . . .14

C. HYDROSTATIC TEST THE BOILER . . . . . . .16

4. INSTALL THE FLUE COLLECTOR 17

5. PIPE THE BOILER 19

A. PREPARATION . . . . . . . . . . . . . . . . . . . . . . .19

B. SUPPLY PIPING . . . . . . . . . . . . . . . . . . . . . .19

C. RETURN PIPING . . . . . . . . . . . . . . . . . . . . . .19

D. MULTIPLE BOILER INSTALLATIONS . . . . . .21

6. INSTALL THE JACKET & DRAFT HOOD 23

A. PREPARE THE PARTS . . . . . . . . . . . . . . . . .23

B. APPLY CLEANOUT COVER PLATES . . . . . .23

C. APPLY JACKET END ASSEMBLIES . . . . . .23

D. 211A-04 THROUGH 211A-08 ONLY . . . . . .23

E. 211A-09 AND LARGER ONLY . . . . . . . . . . .23

F. APPLY JACKET TOP PANELS . . . . . . . . . . .24

G. APPLY LOWER END PANELS . . . . . . . . . . .24

H. APPLY PLATES AND LABELS . . . . . . . . . . .24

7. CONNECT GAS PIPING 29

A. INSTALL GAS TRAIN . . . . . . . . . . . . . . . . .29

B. CONNECT PILOT GAS TUBING . . . . . . . . . .29

C. INSTALL VENT AND BLEED PIPING . . . . . .29

D. INSTALL GAS SUPPLY PIPING . . . . . . . . . .30

E. TEST GAS SUPPLY PIPING . . . . . . . . . . . . .30

8. INSTALL CONTROLS AND TRIM 32

A. INSTALL SAFETY VALVE(S) . . . . . . . . . . . .32

B. INSTALL BLOWDOWN VALVES . . . . . . . . .32

C. INSTALL LOW WATER CUT-OFF(S) . . . . . .32

D. INSTALL PRESSURE CONTROLS . . . . . . . .32

9. WIRE THE BOILER 37

A. CONNECT SUPPLY WIRING . . . . . . . . . . . .37

B. PREPARE REMAINING CONTROLS . . . . . .37

C. INSTALL CONTROL WIRING . . . . . . . . . . . .37

10. STARTING THE BOILER 40

A. CHECK THE PIPING . . . . . . . . . . . . . . . . . . .40

B. FILL THE BOILER . . . . . . . . . . . . . . . . . . . . .40

C. STUDY LIGHTING INSTRUCTIONS . . . . . . .40

D. RUN PILOT CHECK-OUT . . . . . . . . . . . . . . .40

E. CHECK MAIN BURNER SYSTEM . . . . . . . .40

F. CHECK BOILER CONTROLS . . . . . . . . . . . .41

G. CLEAN THE BOILER . . . . . . . . . . . . . . . . . . .41

11. LIGHTING INSTRUCTIONS - TYPICAL 42

A. TO LIGHT THE BOILER . . . . . . . . . . . . . . . .42

B. TO SHUT DOWN THE BOILER . . . . . . . . . .42

C. PILOT FLAME FAILURE . . . . . . . . . . . . . . . .42

12. OPERATION & MAINTENANCE 43

A. PLACING BOILER IN OPERATION . . . . . . . .44

B. TO SHUT DOWN THE BOILER . . . . . . . . . .45

C. ANNUAL MAINTENANCE . . . . . . . . . . . . . .45

D. MONTHLY MAINTENANCE . . . . . . . . . . . . .45

E. WEEKLY MAINTENANCE . . . . . . . . . . . . . .45

F. DAILY MAINTENANCE . . . . . . . . . . . . . . . . .45

13. TROUBLESHOOTING - SERVICE TIPS 46

14. BOILER RATINGS & DIMENSIONS 48

15. REPAIR PARTS - SERIES 211A 52

TABLE OF CONTENTS

USING THIS MANUAL

A. FOLLOW THE PIPING GUIDELINES

1. We have provided suggested piping diagrams which

will cover most applications of this boiler.

2. Follow these guidelines to make sure the boiler will

operate correctly.

B. CONTROLS

1. This manual provides wiring diagrams and lighting

instructions for standard systems only.

2. Use the Lighting Instructions and Wiring Diagrams

provided with the boiler to make sure they represent

the controls provided.

C. SPECIAL ATTENTION BOXES

1. Throughout this manual you will see special

attention boxes intended to supplement the

instructions and make special notice of potential

hazards. These categories mean, in the judgment of

PB Heat, LLC:

USING THIS MANUAL

Indicates special attention is needed, but not directly

related to potential personal injury or property

damage.

NOTICE

Indicates a condition or hazard which will or can

cause minor personal injury or property damage.

CAUTION

DANGER

Indicates a condition or hazard which will cause

severe personal injury, death or major property

damage.

Indicates a condition or hazard which may cause

severe personal injury, death or major property

damage.

WARNING

PREINSTALLATION

A. ACCESSIBILITY CLEARANCES

1. The following recommendations allow for reasonable

access to the boiler. Local codes or special

conditions may require greater clearances.

a. For servicing the boiler: provide 48" (1219 mm)

between the control manifold and adjacent wall

or other appliance.

b. For access to draft hood or passage to access the

boiler control manifold(s): provide 48" (1219 mm)

between the side of the boiler and adjacent wall or

other appliance.

c. See Figure 1.1. Clearances with an “S” are

minimum clearances for service accessibility.

B. COMBUSTIBLE CONSTRUCTION

CLEARANCES

1. This boiler is design certified for the following

clearances to combustible construction.

•24" (610 mm) between the front, top, sides and

rear of the jacket.

•6" (152 mm) from steam and hot water pipes

•6" (152 mm) from vent connector

•See Figure 1.1. Clearances with a “C” indicate

minimum clearances from combustible

construction.

C. AIR FOR COMBUSTION AND

VENTILATION

1. Adequate combustion air and ventilation air must be

provided for this appliance in accordance with the

section of the National Fuel Gas Code entitled, “Air

for Combustion and Ventilation” or applicable

provisions of the local building code. Subsections 2

through 8 as follows are based on the National Fuel

Gas Code requirements.

1. PREINSTALLATION

The equipment shall be installed with those installation requirements of the authority having jurisdiction or, in the

absence of such requirements, to the current edition of the

National Fuel Gas Code

, ANSI Z223.1/NFPA 54 and/or

CAN/CGA B149 Installation Codes.

Where required by the authority having jurisdiction, the installation must conform to

American Society of

Mechanical Engineers Safety Code for Controls and Safety Devices for Automatically Fired Boilers,

ASME CSD-1.

NOTICE

Read these instructions carefully before beginning the installation.

Study the control folder and consult drawings.

A shipping list is enclosed with each boiler, listing the items packed at the factory. Check the list as you unpack parts. If any parts

are missing or damaged, report the problem to the delivering carrier immediately.

Figure 1.1: Clearance Requirements

PREINSTALLATION

2. Required Combustion Air Volume: The total required

volume of indoor air is to be the sum of the required

volumes for all appliances located within the space.

Rooms communicating directly with the space in

which the appliances are installed and through

combustion air openings sized as indicated in

Subsection 3 are considered part of the required

volume. The required volume of indoor air is to be

determined by one of two methods.

a. Standard Method: The minimum required

volume of indoor air (room volume) shall be 50

cubic feet per 1000 BTU/Hr (4.8 m3/kW). This

method is to be used if the air infiltration rate is

unknown or if the rate of air infiltration is known

to be greater than 0.6 air changes per hour. As

an option, this method may be used if the air

infiltration rate is known to be between 0.6 and

0.4 air changes per hour. If the air infiltration rate

is known to be below 0.4 then the Known Air

Infiltration Rate Method must be used. If the

building in which this appliance is to be installed

is unusually tight, PB Heat recommends that the

air infiltration rate be determined.

b. Known Air Infiltration Rate Method:

Where the air infiltration rate of a structure is

known, the minimum required volume of indoor

air for appliances other than fan assisted and

for the Series 211A Boiler shall be determined

as follows:

where:

Iother = Input of appliances other than fan

assisted in Btu/hr

ACH = air change per hour (percent of the

volume of the space exchanged per

hour, expressed as a decimal)

For fan assisted appliances, calculate the required

volume of air using the following equation:

Ifan = Input of the fan assisted appliances in

Btu/hr

Note: These calculations are not to be used for

infiltration rates greater than 0.60 ACH.

3. Indoor Air Opening Size and Location: Openings

connecting indoor spaces shall be sized and located

as follows:

a. Combining spaces on the same floor:

Provide two permanent openings communicating

with additional spaces that have a minimum free

area of 1 in2per 1000 Btu/hr (22 cm2per 1000 W)

of the total input rating of all gas fired equipment

but not less than 100 in2(645 cm2). One

opening is to begin within 12 inches (305 mm)

from the top of the space and the other is to

begin within 12 inches (305 mm) from the floor.

The minimum dimension of either of these

openings shall be 3 inches (76 mm). See Figure

1.2 for an illustration of this arrangement.

b. Combining spaces on different floors:

Provide one or more permanent openings

communicating with additional spaces that have

a total minimum free area of 2 in2per 1000

Btu/hr (44 cm2per 1000 W) of total input rating

of all equipment. See Figure 1.3 for an

illustration of this arrangement.

4. Outdoor Combustion Air: Outdoor combustion air is

to be provided through one or two permanent

openings. The minimum dimension of these air

openings is 3 inches (76 mm).

a. Two Permanent Opening Method: Provide

two permanent openings. One opening is to

begin within 12 inches (305 mm) of the top of

the space and the other is to begin within 12

inches (305 mm) of the floor. The openings are

to communicate directly or by ducts with the

outdoors or with spaces that freely communicate

with the outdoors. The size of the openings shall

be determined as follows:

21 ft3Iother

ACH 1000Btu/hr

Required Volumeother =

⎛

⎜

⎝

⎛

⎜

⎝

Figure 1.2: Air Openings – All Air from Indoors

on the Same Floor

Figure 1.3: Air Openings – All Air from Indoors

on Different Floors

15 ft3Ifan

ACH 1000Btu/hr

Required Volumefan =⎛

⎜

⎝

⎛

⎜

⎝

i. Where communicating directly or through

vertical ducts with the outdoors each opening

shall have a minimum free area of 1 in2per

4000 Btu/hr (22 cm2per 4000 W) of total

input rating for all equipment in the space.

See Figure 1.4 for openings directly

communicating with the outdoors or Figure

1.5 for openings connected by ducts to the

outdoors.

ii. Where communicating with the outdoors

through horizontal ducts, each opening shall

have a minimum free area of 1 in2per 2000

Btu/hr (22 cm2per 2000 W) of total rated

input for all appliances in the space. See

Figure 1.6.

b. One Permanent Opening Method: Provide

one permanent opening beginning within 12

inches (305 mm) of the top of the space. The

opening shall communicate directly with the

outdoors, communicate through a vertical or

horizontal duct, or communicate with a space

that freely communicates with the outdoors.

The opening shall have a minimum free area of

1 in2per 3000 Btu/hr of total rated input for all

appliances in the space and not less than the

sum of the cross-sectional areas of all vent

connectors in the space. The gas-fired equipment

shall have clearances of at least 1 inch (25 mm)

from the sides and back and 6 inches (150 mm)

from the front of the appliance. See Figure 1.7

for this arrangement.

Figure 1.4: Air Openings – All Air Directly from

Outdoors

Figure 1.5: Air Openings – All Air from Outdoors

through Vertical Ducts

Figure 1.6: Air Openings – All Air from Outdoors

through Horizontal Ducts

Figure 1.7: Air Openings – All Air from Outdoors

through One Opening

PREINSTALLATION

5. Combination Indoor and Outdoor Combustion Air: If

the required volume of indoor air exceeds the

available indoor air volume, outdoor air openings or

ducts may be used to supplement the available

indoor air provided:

a. The size and location of the indoor openings

comply with Subsection 3.

b. The outdoor openings are to be located in

accordance with Subsection 4.

c. The size of the outdoor openings are to be sized

as follows:

where:

Areq = minimum area of outdoor openings.

Afull = full size of outdoor openings calculated

in accordance with Subsection 4.

Vavail=available indoor air volume

Vreq = required indoor air volume

6. Engineered Installations: Engineered combustion air

installations shall provide an adequate supply of

combustion, ventilation, and dilution air and shall be

approved by the authority having jurisdiction.

7. Mechanical Combustion Air Supply:

a. In installations where all combustion air is

provided by a mechanical air supply system, the

combustion air shall be supplied from the

outdoors at the minimum rate of 0.35 ft3/min per

1000 Btu/hr (0.034 m3/min per 1000 W) of the

total rated input of all appliances in the space.

b. In installations where exhaust fans are installed,

additional air shall be provided to replace the

exhaust air.

c. Each of the appliances served shall be

interlocked to the mechanical air supply to

prevent main burner operation when the

mechanical air supply system is not in operation.

d. In buildings where the combustion air is provided

by the mechanical ventilation system, the system

shall provide the specified combustion air rate in

addition to the required ventilation air.

8. Louvers & Grills:

a. The required size of openings for combustion,

ventilation, and dilution air shall be based on the

net free area of each opening.

i. Where the free area through a louver or grille

is known, it shall be used in calculating the

opening size required to provide the free area

specified.

ii. Where the free area through a louver or grille

is not known, it shall be assumed that wooden

louvers will have 25% free area and metal

louvers and grilles will have 75% free area.

iii. Nonmotorized dampers shall be fixed in the

open position.

b. Motorized dampers shall be interlocked with the

equipment so that they are proven in the full

open position prior to ignition and during

operation of the main burner.

i. The interlock shall prevent the main burner

from igniting if the damper fails to open

during burner startup.

ii. The interlock shall shut down the burner if

the damper closes during burner operation.

9. Combustion Air Ducts

a. Ducts shall be constructed of galvanized steel or

an equivalent corrosion- resistant material.

b. Ducts shall terminate in an unobstructed space,

allowing free movement of combustion air to the

appliances.

c. Ducts shall serve a single space.

d. Ducts shall not serve both upper and lower

combustion air openings where both such

openings are used. The separation between ducts

serving upper and lower combustion air

openings shall be maintained to the source of

combustion air.

e. Ducts shall not be screened where terminating in

an attic space.

f. Horizontal upper combustion air ducts shall not

slope downward toward the source of the

combustion air.

g. The remaining space surrounding a chimney

liner, gas vent, special gas vent, or plastic piping

installed within a masonry, metal, or factory

built chimney shall not be used to supply

combustion air.

h. Combustion air intake openings located on the

exterior of buildings shall have the lowest side of

the combustion air intake opening at least 12

inches (305 mm) above grade.

D. CHIMNEY OR VENT

1. Inspect the existing chimney or vent system. Make

sure it is in good condition. Inspect chimney liner

and repair or replace if necessary.

2. The vent system and installation must be in

accordance with the current edition of the National

Fuel Gas Code, ANSI Z223.1/NFPA 54, under

“Venting of Equipment”, or CAN/CGA B149,

Installation codes, under “Venting Systems and Air

Supply for Appliances”, or applicable provisions of

the local building codes.

PREINSTALLATION

Vavail

1 – Vreq

Areq = Afull

⎛

⎜

⎝

⎛

⎜

⎝

PREINSTALLATION

3. Chimney/Vent Operation: The vent system must be

sized and installed to provide the draft needed to

remove all combustion products. If the vent system

does not provide enough draft, combustion products

will spill into the building from the draft hood relief

opening. If spillage of combustion products occurs,

check the vent system, the combustion and

ventilation openings and make sure the boiler room

is never under negative pressure.

4. Exterior Vents

a. If the vent is outside, make sure it is insulated

sufficiently to ensure adequate draft.

5. Vent Sizing:

a. Individual vents: Use vent piping the same

diameter as the boiler vent connection. The

minimum height is 10 feet (305 cm) above the

bottom of the draft hood (relief opening). The

vent must also extend above the roof or any

obstructions as outlined in the current edition of

the National Fuel Gas Code, ANSI Z223.1/NFPA

54 and/or CAN/CGA B149, Installation Codes or

as required by local codes.

b. Combined vent breeching:

•The recommended sizing in Section 14, Boiler

Ratings & Dimensions, in this Manual is based

on a minimum chimney or vent height of 20

feet (610 cm) and a maximum horizontal run

of 6 feet (183 cm) to the chimney with no

more than one 90-degree standard elbow.

•The minimum area of the chimney serving

two or more appliances must be at least the

area of the largest chimney connector plus

50% of the total area of all other appliance

connectors.

•The vent connector must be single wall steel

or Type B double wall vent pipe. The vent

connector must be Type B double wall if it is

located in or passes through cold areas. The

vent connector must extend into, but not

beyond, the inside wall of the chimney.

6. Vent Connection to Boiler (Figure 1.8):

a. Provide at least a 3 foot (91 cm) rise in the vent

connection on the boiler.

b. The vent system should provide a draft of at least

0.02" w.c. (5 Pa) measured at the vent

connections.

c. Support the weight of the vent system

independently of the boiler draft hood. The draft

hood is not designed to carry structural loading.

d. Provide support of the vent connector

(breeching) at maximum 12 foot (366 cm)

intervals to prevent sagging and to provide a

minimum upward slope of 1/4" per foot (21 mm

per meter).

e. Do not connect the vent for this boiler into any

vent system which operates with positive

pressure.

f. Use Type B double-wall pipe for vents which run

through unheated spaces.

7. Removing an existing boiler from a common vent:

At the time for removal of an existing boiler, the

following steps shall be followed with each appliance

connected to the common venting system placed in

operation, while the other appliances remaining

connected to the common venting system are not in

operation.

a. Seal any unused openings in the common

venting system.

b. Visually inspect the venting system for proper size

and horizontal pitch and determine there is no

blockage or restriction, leakage, corrosion and

other deficiencies which could cause an unsafe

condition.

c. Insofar as is practical, close all building doors

and windows and all doors between the space in

which the appliances remaining connected to the

common venting system are located and other

spaces of the building. Turn on clothes dryers

and any appliance not connected to the common

venting system. Turn on any exhaust fans, such

as range hoods and bathroom exhausts, so they

will operate at maximum speed. Do not operate

a summer exhaust fan. Close fireplace dampers.

d. Place in operation the appliance being inspected.

Follow the lighting instructions. Adjust the

thermostat so appliance will operate continuously.

e. Test for spillage at the draft hood relief opening

after 5 minutes of main burner operation. Use

the flame of a match or candle, or smoke from a

cigarette, cigar or pipe.

Failure to provide adequate venting can result in

severe property damage, personal injury or death.

WARNING

Figure 1.8: Vent Connection

PREINSTALLATION

f. After it has been determined that each appliance

remaining connected to the common venting

system properly vents when tested as outlined

above, return doors, windows, exhaust fans,

fireplace dampers and any other gas-burning

appliance to their previous condition of use.

g. Any improper operation of the common venting

system should be corrected so the installation

conforms with the current edition of the National

Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or

CAN/CGA B149, Installation Codes. When

resizing any portion of the common venting

system, the common venting system should be

resized to approach the minimum size as

determined using the appropriate tables located

in the chapter Sizing of Category I Venting

Systems in the current edition of the National

Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or

CAN/CGA B149, Installation Codes.

E. BOILER SETTING

1. Provide a good, level foundation for the boiler with

the minimum dimensions given in Figure 1.9 and

Table 1.1. The flooring and structural support system

must be suitable for the operating weight of the

boiler and any connected piping.

2. Do not operate the boiler until the foundation, if new

concrete, has thoroughly cured. The high

temperature under the burners could cause major

damage to the concrete if it still contains moisture.

3. If the boiler is installed in a penthouse or if wiring of

any sort is run underneath the boiler foundation,

construct the foundation with provision for airflow

underneath between the main floor and the top of

the boiler foundation.

a. Concrete block aligned with the openings

connected continuously would serve this

purpose, for example.

b. If the foundation must be a concrete slab, use an

air cell high temperature insulating board, at least

1/2 inch (13 mm) thick, with aluminum backing,

aluminum side up. One-half inch (13 mm) Hi

Temp millboard with aluminum backing would

be acceptable as well. Place the insulating board

on the slab inside the base.

F. WATER QUALITY AND MAKE-UP

1. Check the system to make sure there are no leaks or

overfilling problems which might cause excessive

make-up water to be added. Make-up water causes

liming in the boiler and brings in oxygen. Oxygen

can cause severe damage to the boiler through

oxygen corrosion pitting.

2. Clean the boiler as described in this manual. Poor

water quality will cause foaming, priming and

overfilling of the system. Too much sediment in the

water will cause build-up in the boiler and could

result in cracked sections due to overheating.

3. If the condensate return time lag is too long, this

boiler may not work correctly with gravity return or

with a condensate return unit. Long time lags will

cause make-up water to be added to the boiler,

resulting in flooding of the boiler, carryover to the

system and excessive make-up water addition. You

will need to install a boiler feed system to prevent

problems in such cases.

4. Do not use chemicals or substances in the

boiler or system which contain petroleum or its

derivatives. This will damage the boiler seals.

G. INSTALLATION SURVEY

For new and existing installations, a Steam Installation

Survey is available from PB Heat. The survey will

provide information on how a steam boiler works with

your specific system and will provide an overview of

steam system operation in general.

You can also use this survey to locate system problems

which will have to be corrected. To obtain copies of the

Steam Installation Survey, contact your PB Heat

representative or download from PeerlessBoilers.com.

Figure 1.9: Foundation Layout

Do not install this boiler on carpeting or any

combustible flooring. A significant fire hazard could

result, with potential for property damage, personal

injury or death.

WARNING

PREINSTALLATION

Table 1.1: Boiler Foundation Layout

Boiler Boiler Base Length Jacket Length Foundation Length

Model inches mm inches mm inches mm

211A-04 22-1/2 572 28-1/8 714 40-1/8 1,019

211A-05 28-1/8 714 33-3/4 857 45-3/4 1,162

211A-06 33-3/4 857 39-3/8 1,000 51-3/8 1,305

211A-07 39-3/8 1,000 45 1,143 57 1,448

211A-08 45 1,143 50-5/8 1,286 62-5/8 1,591

211A-09 50-5/8 1,286 56-1/4 1,429 68-1/4 1,734

211A-10 56-1/4 1,429 61-7/8 1,572 73-7/8 1,876

211A-11 61-7/8 1,572 67-1/2 1,714 79-1/2 2,019

211A-12 67-1/2 1,714 73-1/8 1,857 85-1/8 2,162

211A-13 73-1/8 1,857 78-3/4 2,000 90-3/4 2,305

211A-14 78-3/4 2,000 84-3/8 2,143 96-3/8 2,448

211A-15 84-3/8 2,143 90 2,286 102 2,591

211A-16 90 2,286 95-5/8 2,429 107-5/8 2,734

211A-17 95-5/8 2,429 101-1/4 2,572 113-1/4 2,877

211A-18 101-1/4 2,572 106-7/8 2,715 118-7/8 3,019

211A-19 106-7/8 2,715 112-1/2 2,857 124-1/2 3,162

211A-20 112-1/2 2,857 118-1/8 3,000 130-1/8 3,305

211A-21 118-1/8 3,000 123-3/4 3,143 135-3/4 3,448

211A-22 123-3/4 3,143 129-3/8 3,286 141-3/8 3,591

211A-23 129-3/8 3,286 135 3,429 147 3,734

211A-24 135 3,429 140-5/8 3,572 152-5/8 3,877

211A-25 140-5/8 3,572 146-1/4 3,715 158-1/4 4,020

211A-26 146-1/4 3,715 151-7/8 3,858 163-7/8 4,162

211A-27 151-7/8 3,858 157-1/2 4,000 169-1/2 4,305

211A-28 157-1/2 4,000 163-1/8 4,143 175-1/8 4,448

211A-29 163-1/8 4,143 168-3/4 4,286 180-7/8 4,594

211A-30 168-3/4 4,286 174-3/8 4,429 186-3/8 4,734

211A-31 174-3/8 4,429 180 4,572 192 4,877

211A-32 180 4,572 185-5/8 4,715 197-5/8 5,020

211A-33 185-5/8 4,715 191-1/4 4,858 203-1/4 5,163

211A-34 191-1/4 4,858 196-7/8 5,001 208-7/8 5,305

211A-35 196-7/8 5,001 202-1/2 5,143 214-1/2 5,448

211A-36 202-1/2 5,143 208-1/8 5,286 220-1/8 5,591

211A-37 208-1/8 5,286 213-3/4 5,429 225-3/4 5,734

211A-38 213-3/4 5,429 219-3/8 5,572 231-3/8 5,877

211A-39 219-3/8 5,572 225 5,715 237 6,020

211A-40 225 5,715 230-5/8 5,858 242-5/8 6,163

211A-41 230-5/8 5,858 236-1/4 6,001 248-1/4 6,306

211A-42 236-1/4 6,001 241-7/8 6,144 253-7/8 6,448

211A-43 241-7/8 6,144 247-1/2 6,286 259-1/2 6,591

211A-44 247-1/2 6,286 253-1/8 6,429 265-1/8 6,734

211A-45 253-1/8 6,429 258-3/4 6,572 270-3/4 6,877

211A-46 258-3/4 6,572 264-3/8 6,715 276-3/8 7,020

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