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103698-04 - 10/14

Price - $5.00

INSTALLATION, OPERATING AND

SERVICE INSTRUCTIONS FOR

Series 2

®

Gas - Fired Boiler

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9700609

9700609

Summary of Contents for B series 2

Page 1: ...i t a e h r u o y l l a c r e l i o b o t s r i a p e r r o e c i v r e s r o F l e b a L g n i t a R n o n w o h s s a r e b m u N l a i r e S d n a r e b m u N l e d o M r e l i o B e d i v o r p r...

Page 2: ...ct to be installed by a Licensed Plumber or Gas Fitter The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or to important...

Page 3: ...should be installed on the heating system to prevent damage if the boiler is inoperative This boiler contains very hot water under high pressure Do not unscrew any pipe fittings nor attempt to disconn...

Page 4: ...Parts 39 AppendixA Figures 56 Appendix B Tables 58 The Series 2 boilers are low pressure cast iron gas fired hot water boilers designed for use in closed hot water heating systems These boilers are Ca...

Page 5: ...1 2 9 1 4 6 48 1 2 9 3 4 5 1 4 1 2 4 7 6 dia 354 206 29 3 4 21 3 4 10 7 8 6 48 1 2 9 3 4 5 1 4 1 2 5 5 6 dia 414 207 33 25 12 1 2 7 50 1 8 10 3 8 6 5 8 3 4 6 2 7 dia 458 208 36 1 4 28 1 4 14 1 8 7 50...

Page 6: ...t etc DANGER Do not install boiler where gasoline or other flammable vapors or liquids or sources of hydrocarbons i e bleaches cleaners chemicals sprays paint removers fabric softeners etc are used or...

Page 7: ...ir infiltration through cracks around windows and doors vi For boiler located in building of unusually tight construction provide outdoor air through two permanent openings which communicate directly...

Page 8: ...for natural gas shall be such as to provide the required supply of gas without undue loss of pressure between meter and the boiler Gas supply piping should be sized in accordance with the Tables 2 3 a...

Page 9: ...large volume or excessive radiation where low boiler water temperatures may be encountered i e converted gravity circulation system etc Install a pipe tee at the boiler return along with a second tee...

Page 10: ...10 IV Boiler Water Piping continued Figure 5 Recommended Water Piping for Zone Valve Zoned Heating Systems...

Page 11: ...11 IV Boiler Water Piping continued Figure 6 Recommended Water Piping for Circulator Zoned Heating Systems...

Page 12: ...ff is required to protect a gas fired hot water boiler when any connected heat distributor radiation is installed below the top of the hot water boiler i e baseboard on the same floor level as the boi...

Page 13: ...Water Piping continued Figure 9 Recommended Auxiliary Limit Location C Optional Auxiliary Limit Installation 1 Some jurisdictions may require the use of an Auxiliary Limit control with a hot water bo...

Page 14: ...the draft hood skirt by locating the center tooth with the 10 sheet metal screw on the outside and the other two teeth inside the draft hood skirt See Figure 10 4 Slide the mounting bracket up tight a...

Page 15: ...ovided 4 x 3 vent reducer into vent damper outlet then install vent connector from reducer outlet to chimney 2 All other sizes Install vent connector from vent damper outlet to chimney 3 Install vent...

Page 16: ...nte montante est d au moins 1 4 po par pied 21 mm m entre la chaudi re et l vent 10 Support horizontal portions of venting system to prevent sagging Use pipe straps brackets or hangers spaced 4 ft 1 2...

Page 17: ...senter des risques V Venting continued 3 Dans la mesure du possible fermer toutes les portes et les fen tres du b timent et toutes les portes entre l espace o les appareils toujours raccord s au syst...

Page 18: ...cal circuit must be run from the main electrical service with an over current device disconnect in the circuit A service switch is recommended and may be required by some local jurisdictions When inst...

Page 19: ...19 Figure 13 Connection Wiring Diagram Intelligent Hydronic Control VI Electrical continued...

Page 20: ...20 Figure 14 Ladder Wiring Diagram Intelligent Hydronic Control VI Electrical continued...

Page 21: ...21 Figure 15 Wiring Schematic Zone Valves Figure 16 Wiring Schematic Zone Circulators VI Electrical continued...

Page 22: ...At completion open all zone valves i Close hose bib continue filling the system until the pressure gauge reads 12 psi Close fill valve Note If make up water line is equipped with pressure reducing val...

Page 23: ...23 Figure 19 Operating Instructions VR8204 and VR8304 Gas Valves VII Start up and Checkout continued...

Page 24: ...t Adjust regulator on Gas Valve so that manifold pressure is three and a half 3 inches water column Turning Regulator Adjusting Screw Clockwise increases pressure Counterclockwise rotation decreases p...

Page 25: ...nne Start boiler refer to instructions on damper to determine if damper is in the full open position I CHECK IGNITION SYSTEM SAFETY SHUT OFF DEVICE Remove 3 wire plug from gas valve If burners do not...

Page 26: ...atus information to help determine the cause of the problem Table 6 provides a list of boiler status codes that are reported Refer to the Troubleshooting Section for more information C Using Display T...

Page 27: ...s the below listed values This list is also available on the control cover Status Code Displayed in STA Mode 1 Standby 4 Prepurge 6 Spark 7 Flame Proving 8 Running 10 Retry Recycle Delay 13 Soft Locko...

Page 28: ...water flow to the priority zone after the call for heat ends The Circulator Overrun Time is adjustable between 0 through 10 minutes 4 Circulator Pre purge Time When the boiler is warm boiler water te...

Page 29: ...d Heating Zone When there is no IWH the DHW Circulator output may be configured to control a second heating zone This is particularly helpful when the home uses only two heating zones The control repl...

Page 30: ...respirator 2 Long sleeved loose fitting clothing 3 Gloves 4 Eye Protection Take steps to assure adequate ventilation Wash all exposed body areas gently with soap and water after contact Wash work clo...

Page 31: ...ccumulation of soot To obtain access to flueways 1 Remove vent pipe damper blocked vent switch and draft hood 2 Remove sheet metal screws securing Jacket Top Panel lift panel and rotate about relief v...

Page 32: ...ll out switch wires gas valve wires and pilot lead 4 Check main burner and Pilot flames see procedure in Section VII Start up and Checkout paragraphs D and E E Check all controls and damper operation...

Page 33: ...t bracket 3 To adjust or check spark gap between electrode and hood on Honeywell Q3481B pilot a Use round wire gauge to check spark gap b Spark gap should be 1 8 inch for optimum performance 4 Reinsta...

Page 34: ...e replacing a component try to rule out all other possible causes 5 When checking voltage across wiring harness pins be careful not to insert the meter probes into the pins Doing so may damage the pin...

Page 35: ...c is present unplug the vent damper harness from control With wire harness unplugged check for 24Vac between P6 5 on Control and ground If voltage present replace the control If voltage not present fa...

Page 36: ...llow the recommendations in Section I Figure 1 and Section V Venting Check Flame Rollout Switch in the event of excessive blockage of the boiler section flue passageways is developed the flame rollout...

Page 37: ...ng for recommended corrective action Flame sensed during post purge before gas valve signaled open Check the gas valve for proper operation Replace gas valve is problem persists Hard Lockout When a ha...

Page 38: ...low check the following 24 volts across PV and MV PV at gas valve if voltage ok replace defective gas valve Check for break in wiring harness to gas valve 24 volts across control connector P5 2 and P5...

Page 39: ...ntrols 54 Draft Hood and Vent Damper 55 All Series 2 Repair Parts may be obtained through your local U S Boiler Company Wholesale distributor Should you require assistance in locating a U S Boiler Com...

Page 40: ...40 Section Assembly and Canopy Group XI Repair Parts continued...

Page 41: ...tinued Key No Description Part No Quantity 202 202X 203 204 205 206 207 208 209 210 2 Canopy Group 2A Canopy Assembly 61117022 1 611170300 1 611170302 1 611170402 1 611170502 1 611170602 1 611170702 1...

Page 42: ...0391 1 204 718600491 1 205 718600591 1 206 718600691 1 207 718600791 1 208 718600891 1 209 718600991 1 210 718601091 1 Key No Description Boiler Size Part No Qty 3 Base Assembly Continued 3B Base Wrap...

Page 43: ...37 1 204 71806047 1 205 71806057 1 206 71806067 1 207 71806077 1 208 718600806 1 209 718600906 1 210 718601006 1 Key No Description Boiler Size Part No Qty 3 Base Assembly Continued 3E Base Leg Assemb...

Page 44: ...44 Manifold and Main Burners 1 Inch Main Burners XI Repair Parts continued...

Page 45: ...2 2 2 2 Screw Machine Philips Head w Captive Lockwasher 10 32 x 1 4 Electronic Ignition 80860874 1 1 1 1 1 1 1 1 1 1 4F Screw Self Tapping Philips Pan Head 1 4 20 x 1 2 80860700 4 4 4 4 4 4 4 4 4 4 4B...

Page 46: ...arts continued Key No Description Part No Quantity 203 202X 204 205 206 207 208 209 210 4 40 MM Main Burners Only 4A Main Burner 8236135 1 1 2 3 4 5 6 7 8 4B 40 MM Main Burner with Pilot Bracket 4B Ma...

Page 47: ...41 822729 N A 2 3 40 822728 4 5 6 7 8 9 4D 40 MM Main Burner Orifices LP Gas 5001 9000 Ft USA Only 4D 54 822734 N A 2 53 822722 3 4 5 6 7 8 9 4D 40 MM Main Burner Orifices Natural Gas 2001 4500 Ft Ca...

Page 48: ...60161 1 1 1 1 5G Ground Wire Assembly 103776 01 1 1 1 1 1 1 1 1 1 1 5H Compression Fitting 1 4 OD x 1 4 CC Honeywell 386449 1 B 8236109 1 1 1 1 1 1 1 1 1 1 5 Pilot Burner and Gas Valve LP Gas 5A Pilot...

Page 49: ...t Assembly Complete 6 Jacket Assembly Complete 604170254 1 604170354 1 1 604170454 1 604170554 1 604170654 1 604170754 1 604170854 1 604170954 1 604171054 1 6 Jacket Assembly 6A Jacket Wrap Around Pan...

Page 50: ...50 XI Repair Parts continued Jacket Assembly...

Page 51: ...33 1 604170733 1 604170833 1 604170933 1 604171033 1 6D Jacket Front Removable Door 604170242 1 604170342 1 1 604170442 1 604170542 1 604170642 1 604170742 1 604170842 1 604170942 1 604171042 1 6E Jac...

Page 52: ...52 Water Trim XI Repair Parts continued...

Page 53: ...6170 1 8B Gasket Taco 00 Series 806602006 2 9 Miscellaneous Circulator Hardware 9A Flange 1 1 4 NPT 806602013 2 9B Screw Cap Hex Head 7 16 14 x 1 1 2 80861301 4 9C Nut Hex 7 16 14 80860406 4 10 Limit...

Page 54: ...Flame Rollout Switch 80160044 1 13B Flame Rollout Switch Mounting Bracket All Models Except 202 7186018 1 14 Blocked Vent Switch Replacement Assembly 6016058 1 15A Intelligent Hydronic Control Honeyw...

Page 55: ...202 202X 203 204 205 206 207 208 209 210 16 Draft Hood Carton 16 Draft Hood 8116067 1 1 1 8111702 1 8111703 1 1 8111704 1 1 8111705 1 1 17 Vent Damper 17 4 102284 01 1 1 1 5 102284 02 1 6 102284 03 1...

Page 56: ...nstallation Figure 12 16 Typical Vent Installation Section VI Electrical Figure 13 19 Connection Diagram Schematic Intelligent Hydronic Control Figure 14 20 Ladder Diagram Schematic Intelligent Hydron...

Page 57: ...pair Parts N A 40 Section Assembly Canopy Group N A 42 Base Assembly N A 44 Maniflold Main Burners 1 inch Main Burners N A 46 Manifold Main Burners 40mm Main Burners N A 48 Pilot Burner Gas Valve N A...

Page 58: ...r Pre purge Time example PP_ 2 minutes Table 8 29 DHW Terminal function dh_ Selection Domestic Hot Water Demand Parameter dh_ dh Table 9 29 DHW Terminal Function dh_ Selection Zone Request Parameter d...

Page 59: ...59...

Page 60: ...60 U S Boiler Company Inc P O Box 3020 Lancaster PA 17604 1 888 432 8887 www usboiler net...

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