Application of 51 Feeders | PB Heat 211A specs

INSTALL CONTROLS AND TRIM




	-1/8"(638mm)
mm) 25

C
	D
C
A	B
	B

H

Normal Water Line

C

G

C

A

F

J

36"(914	10-3/8" (264mm)
	10-7/8"(276mm)

6-11/16"

(170 mm)

2" (51 mm)

3/4" (19 mm)

12-7/8"

(327 mm)

40-1/2"	E
40-1/2"
(1029 mm)
	C

Control Center Line

Feeder Closing Level (Mark on Casting)

Burner Cut-Off Level is 1-1/2" (38 mm) Below

Center Line on 51-2 and 51-S-2 Controls [2-3/4" (70 mm) Below Normal Water Line]

D D

4-1/8"

(105 mm)

8-1/8"

(206 mm)

A B

Install 1" Blowoff Valve

Boiler Foundation

APPLICATION OF 51 FEEDERS

Models 211A-04 thru 211A-23

One 51-2 Feeder/Cutoff

Models 211A-24 thru 211A-39

One 51-S-2 Feeder/Cutoff

Models 211A-40 and Larger

Two 51-2 Feeder/Cutoffs

Consult Factory for proper application of feeders. Always use a pump control and boiler feed system instead when possible.

SUGGESTED FITTINGS LIST

A1" Cross

B1" Ground Joint Union

C1" Plug

D1" x 3" (76 mm) long Nipple

E1" x 5-1/2" (140 mm) long Nipple

F1" x 8" (203 mm) long Nipple

G1" x 8-1/4" (210 mm) long Nipple

H1" x 19-1/2" (495 mm) long Nipple

J3" x 1" Bushing

The connected fittings shown on this drawing are to be supplied by the installer.

Figure 8.6: Optional Feeder/Low Water Cut-Off, Type 51-2

36

Image 38

PB Heat 211A manual Application of 51 Feeders

Contents

Series 211A Table of Contents Controls Using this ManualFollow the Piping Guidelines Special Attention Boxes Combustible Construction Clearances PreinstallationAccessibility Clearances AIR for Combustion and Ventilation 21 ft Required Volume other =Required Volume fan = 15 ft Btu/hr 22 cm 2 per 2000 W of total rated Input for all appliances in the space. See Mechanical Combustion Air Supply Chimney or VentWhere Combustion Air Ducts Combined vent breeching Exterior VentsVent Sizing Water Quality and MAKE-UP Boiler SettingInstallation Survey Boiler Foundation Layout Crate Items Base AssemblyAssemble the Base Install the Pilot Burners For 211A-04 through 211A-08 Only Base Front and Back Panel Crates Model Overall Length Typical Gas Manifold and Pilot Line Assembly Burners Total Natural Gas Only Propane Gas Only Model NumberPilots Placing the Sections Place the Boiler SectionsPreparation Assembling Sections on Base Hydrostatic Test the Boiler Align Sections Vertically Install the Flue Collector Do not tighten yet Boiler Position Return Piping Pipe the BoilerSupply Piping Pipe the Boiler Equalizers Multiple Boiler InstallationsBoiler Header End Risers Model Size Piping Multiple Boilers, Typical, Gravity Return Systems Prepare the Parts Install the Jacket & Draft HoodApply Cleanout Cover Plates Apply Jacket END Assemblies Apply Plates and Labels Apply Lower END PanelsApply Jacket TOP Panels Top Panel GG-6024 Carton Contents Sub-Assembly Part Number Quantity Jacket Assembly Sequence Carton Numbers and Locations 13C Connect GAS Piping Install GAS TrainInstall Vent and Bleed Piping Connect Pilot GAS Tubing Install GAS Supply Piping Test GAS Supply Piping Pipe Length 4 Pipe 2 Pipe Specific Gravity Multiply Capacity by Install Blowdown Valves Install Controls and TrimInstall Safety Valves Install LOW Water CUT-OFFS Install Pressure Controls Pressure Control Piping Fittings Included with Boiler Standard Float Type COntrol, Model 67PE2 Optional Float Type Pump Control/Low Water Cut-Off, Model Application of 51 Feeders Install Control Wiring Wire the BoilerConnect Supply Wiring Prepare Remaining Controls Typical Wiring Standard Controls Low Voltage Gas Valves Typical Wiring Standard Controls 120-Volt Gas Valves Starting the Boiler Meter reading. Rate, Btu/Hr = F x H x Clean the BoilerCheck Boiler Controls Pilot Flame Failure Lighting Instructions TypicalTo Light the Boiler To Shut Down the Boiler Operation & Maintenance Placing Boiler in Operation Pilot and Burner Flames Weekly Maintenance Monthly MaintenanceAnnual Maintenance Daily Maintenance Troubleshooting Service Tips Problem Possible Cause Suggested Remedy Correct Piping Boiler Ratings & Dimensions Boiler Rating Information Boiler Ratings & Dimensions Chart continues on Series 211A Steam Boiler Dimensions Series 211A Steam Boiler Dimensions Repair Parts Series 211A Description Part Selection Information Stock Code Base Front Panel Cover Plate 26 660 mm Wide Base Panel Boiler Assembly Base Assembly Page Series 211A