Part number 550-110-738/0703 g sa this manual must only be used by a qualified heating installer/service technician. Failure to comply could result in severe personal injury, death or substantial property damage. When calling or writing about the boiler— please have: • boiler model number from the b...
Gsa gas-fired steam boilers – boiler manual 2 part number 550-110-738/0703 installations must follow these codes: • local, state, provincial, and national codes, laws, regulations and ordinances. • national fuel gas code, ansi z223.1–latest edition. • standard for controls and safety devices for aut...
Gsa gas-fired steam boilers – boiler manual 3 part number 550-110-738/0703 clearances flooring and foundation do not install boiler on combustible flooring or carpeting even if a concrete or aerated foundation is used. Fire can result, causing severe personal injury, death or substantial property da...
Gsa gas-fired steam boilers – boiler manual 4 part number 550-110-738/0703 1 prepare boiler location continued failure to follow all instructions can result in flue gas spillage and carbon monoxide emissions, causing severe personal injury or death. When removing boiler from existing common vent sys...
Gsa gas-fired steam boilers – boiler manual 5 part number 550-110-738/0703 table 2 corrosive contaminants and likely locations to prevent potential of severe personal injury or death, check for products or areas listed below before installing boiler. If any of these contaminants are found: • remove ...
Gsa gas-fired steam boilers – boiler manual 6 part number 550-110-738/0703 air openings continued 2 prepare boiler placement and setup place boiler/crate near position 1. Leave boiler in crate and on pallet until installation site is ready. 2. Move entire crate and pallet next to selected location. ...
Gsa gas-fired steam boilers – boiler manual 7 part number 550-110-738/0703 2 prepare boiler continued pressure test continued draft diverter & spill switch draft diverter installation 1. Secure draft diverter to flue collector hood with sheet metal screws. See figure 16, items 1 and 9, on page 26. U...
Gsa gas-fired steam boilers – boiler manual 8 part number 550-110-738/0703 4. Read and apply the harness plug warning label (shown above) so that it is visible after installation 5. Plug damper harness receptacle into damper harness plug. Bypassing (jumpering) vent damper will cause flue products su...
Gsa gas-fired steam boilers – boiler manual 9 part number 550-110-738/0703 general 3 install piping 1. Pipe before installing controls. Connect return piping after jacket is attached. Connect supply piping before or after jacket is attached. Failure to properly pipe the boiler may result in improper...
Gsa gas-fired steam boilers – boiler manual 10 part number 550-110-738/0703 3 install piping continued modern steam boilers are designed to steam for less time than older, larger boilers. When replacing an older steam boiler the system condensate return time may be longer than the steaming time. Thi...
Gsa gas-fired steam boilers – boiler manual 11 part number 550-110-738/0703 4 install controls figure 9 float-type low water cutoff (when provided by others) float-type low water cutoff (when provided by others) 1. Install low water cutoff as shown in figure 9, below. See table 4 and figure 3 on pag...
Gsa gas-fired steam boilers – boiler manual 12 part number 550-110-738/0703 figure 10 gas supply piping table 8 pipe capacity for 0.60 specific gravity natural gas 5 install gas piping natural gas: 1. See table 8 for pipe length and diameter. Base on rated boiler input, found on page 31 (divide by 1...
Gsa gas-fired steam boilers – boiler manual 13 part number 550-110-738/0703 for your safety, turn off electrical power supply at service entrance panel before making any electrical connections to avoid possible electric shock hazard. Failure to do so can cause severe personal injury or death. Wiring...
Gsa gas-fired steam boilers – boiler manual 14 part number 550-110-738/0703 check for gas leaks before starting the boiler, and during initial operation, smell near the floor and around the boiler for gas odorant or any unusual odor. Do not proceed with start-up if there is any indication of a gas l...
Gsa gas-fired steam boilers – boiler manual 15 part number 550-110-738/0703 check burner flame — pilot burner proper pilot flame (see figure 12): 1. Blue flame. 2. Inner cone engulfing thermocouple. 3. Thermocouple glowing cherry red. Improper pilot flame: 1. Overfired — large flame lifting or blowi...
Gsa gas-fired steam boilers – boiler manual 16 part number 550-110-738/0703 boiler model _______________________________________________________________ series ____________ cp number _______________________________________ date installed _________________________________ measured btuh input ________...
Gsa gas-fired steam boilers – boiler manual 17 part number 550-110-738/0703 figure 14 wiring diagram — standing pilot system 9 sequence of operation follow all procedures given in this manual and “lighting instructions” when oper ating the boiler . F ailure to do so could result in se v ere personal...
Gsa gas-fired steam boilers – boiler manual 18 part number 550-110-738/0703 10 lighting instructions — gsa standing pilot boilers honeywell vr8200/vr8300 gas valve if you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life...
Gsa gas-fired steam boilers – boiler manual 19 part number 550-110-738/0703 10 lighting instructions — gsa-30 through gsa-50 robertshaw 7200 gas valve for your safety read before lighting if you do not follow these instructions exactly, a fire or explosion may result causing property damage, persona...
Gsa gas-fired steam boilers – boiler manual 20 part number 550-110-738/0703 follow the “service and maintenance” procedures given throughout this manual and in component literature shipped with the boiler. See “read this first!” on page 2. Failure to perform the service and maintenance could result ...
Gsa gas-fired steam boilers – boiler manual 21 part number 550-110-738/0703 the boiler should be inspected and started annually, at the beginning of the heating season, only by a qualified service technician. In addition, the maintenance and care of the boiler designated in table 9, page 20 and expl...
Gsa gas-fired steam boilers – boiler manual 22 part number 550-110-738/0703 11 service and maintenance continued gas piping 1. Sniff near floor and around boiler area for any indication of a gas leak. 2. Test gas piping using bubble test, per page 12 of this manual, if there is any indication of a l...
Gsa gas-fired steam boilers – boiler manual 23 part number 550-110-738/0703 ❏ ❏ ❏ ❏ ❏ check/test. . . . . . . . . . Boiler relief valve 1. After following the warning directions below, if the relief valve weeps or will not seat properly, replace the relief valve. Before testing, make certain dischar...
Gsa gas-fired steam boilers – boiler manual 24 part number 550-110-738/0703 12 troubleshooting verify proper operation after servicing. • see vent damper manufacturer’s instructions packed with vent damper for additional information. Failure to comply could result in severe personal injury, death or...
Gsa gas-fired steam boilers – boiler manual 25 part number 550-110-738/0703 is 24vac present across transformer terminals c & y? Is damper harness securely plugged in at both ends? Secure connections. Check for open thermostat, lwco, high limit, spill switch or rollout thermal fuse element contacts ...
Gsa gas-fired steam boilers – boiler manual 26 part number 550-110-738/0703 figure 16 section assembly, flue collector, draft diverter, vent damper and base assembly 13 replacement parts the boiler contains ceramic fiber and fiberglass materials. Use care when handling these materials per instructio...
Gsa gas-fired steam boilers – boiler manual 27 part number 550-110-738/0703 figure 17 jacket assembly 13 replacement parts continued the boiler contains ceramic fiber and fiberglass materials. Use care when handling these materials per instructions on page 32 of this manual. Failure to comply could ...
Gsa gas-fired steam boilers – boiler manual 28 part number 550-110-738/0703 figure 18 controls and trim 13 replacement parts continued.
Gsa gas-fired steam boilers – boiler manual 29 part number 550-110-738/0703 13 replacement parts continued figure 19 gas controls.
Gsa gas-fired steam boilers – boiler manual 30 part number 550-110-738/0703 figure 20 dimensional drawing — all dimensions in inches 14 dimensions boiler model number supply tapping (inches npt) return tapping (inches npt) gas connection & manifold size (note 2) (inches npt) “v” damper height (inche...
Gsa gas-fired steam boilers – boiler manual 31 part number 550-110-738/0703 15 ratings notes 1. Based on standard test procedures prescribed by the united states department of energy. 2. Net i=b=r ratings are based on net installed radiation of sufficient quantity for the requirements of the buildin...
Gsa gas-fired steam boilers – boiler manual 32 part number 550-110-738/0703 w-t 8201 w. Calumet rd. Milwaukee, wi 53223 handling ceramic fiber and fiberglass materials removal of combustion chamber lining or base panels the combustion chamber lining or base insulation panels in this product contain ...