Weil-McLain 550-110-260/02002 manual Service

Page 33

Boiler Manual

Figure 20 Ladder wiring diagram

 

 

 

Electrical shock hazard — can cause

Hot

Neutral

Gnd

severe injury or death. Disconnect

SERVICE

120 VAC

 

power before installing or servicing.

 

 

SWITCH

 

 

All contacts are shown without power

 

 

 

 

 

applied.

 

 

 

Legend for ladder wiring diagram

 

 

 

 

 

INDUCER MOTOR

 

120 VAC field wiring

 

CONTROL

 

Low voltage field wiring

 

MODULE

 

 

120 VAC

 

120 VAC factory wiring

 

 

HIGH

SECTION

 

Low voltage factory wiring

 

 

VOLTAGE

CIRCULATOR

 

High voltage spark ignition wiring

 

 

 

Ground connectors

PILOT

 

 

IGNITION

 

 

 

 

 

Table G: Gas valve terminals and anticipator settings

ELECTRODE

 

 

 

 

 

Gas valve

"A"

"B"

"C"

Anticipator

 

 

 

amps

 

 

 

 

 

 

 

 

 

 

Honeywell VR8204

MV/PV

MV

PV

0.6

 

 

 

Honeywell VR8304

MV/PV

MV

PV

0.8

 

 

 

White-Rodgers 36E

2

1

3

0.64

 

 

 

White-Rodgers 36C

2–4 *

1

3

0.7

 

 

 

* Terminals 2–4 are factory-jumpered on the

 

 

 

 

White-Rodgers 36C gas valve.

 

 

 

 

 

1. All wiring must be installed in accordance with:

 

 

 

A. U.S.A. — N.E.C. And any other national, state,

 

 

 

or local code requirements.

 

 

THERMOSTAT

B. Canada — C.S.A. C22.1 C.E.C. Part 1 and any

 

 

 

other national, provincial, or local code require-

 

 

 

ments.

 

 

 

 

 

 

 

2. Pilot lead wires are not field replaceable. Replace pi-

ROLLOUT

WATER TEMP

lot assembly if necessary.

 

 

 

 

 

 

TFE

LIMIT SWITCH

3. If any of the original wire as supplied with the ap-

 

 

 

pliance must be replaced, use minimum 105 °C

 

Additional

 

wire or equivalent. Exception — wires to a rollout

 

 

TFE must be 200 °C or equivalent.

 

 

limits (note 7)

 

4. Thermostat anticipator setting (single zone) — see

AIR PRESSURE

 

Table G for anticipator setting, depending on

 

which gas valve is installed in boiler.

 

SWITCH

 

5. For multiple zoning, use either zone valves or

 

 

 

circulators. Refer to the component manufac-

 

 

HIGH

turer's instructions and this manual for applica-

 

PILOT

VOLTAGE

tion and wiring suggestions.

 

 

 

 

6. Refer to control component instructions packed

 

FLAME

 

with the boiler for application information.

 

SENSOR

 

7. Wire any additional limit controls (low water cut-

 

 

 

off, additional high limit, etc.) in series with boiler

 

 

 

limit control as shown.

 

 

 

71033

 

 

120VAC

24 VAC

G Power

R Tstat–Circ

R Limit

R Press switch

R Flame

Control module

low voltage

section

PILOT GAS

VALVE

"C"

"A"

"B"

MAIN GAS

VALVE

See Table G

Part number 550-110-260/0200

33

Page 32 Page 34
Image 33
Page 32 Page 34
Contents Page ① Control module How it worksPage Contents Installer Please read before proceedingUser 1a Prepare boiler location codes & checklist Residential garage installation 1b Prepare boiler location clearancesFlooring and foundation Removing from existing vent 1c Prepare boiler location vent systemAir contamination 1d Prepare boiler location contaminationCGs combustion air options 1e Prepare boiler location air openingsSizing air openings for CGs installations Orifice replacement procedure 2a Prepare boiler placement & setupPlace boiler/crate near position Inspect orifices and burnersPerform hydrostatic pressure test 2b Prepare boiler pressure testPrepare boiler for test Fill and pressure test3a Water piping general information Expansion tank 3b Water piping single-zone systemDiaphragm-type or bladder-type expansion tank Figure Closed-type expansion tank FigureConverted gravity or steam systems 3c Water piping multiple zonesTypical piping multiple-zone installations 3d Water piping low temp systems Temperature gauges Valve adjustmentFor radiant heating or converted gravity systems Primary/secondary preferred bypass piping3e Water piping low temp systems Boiler-bypass alternate piping 3f Water piping low temp systems 3f system-bypass alternate piping 3g Water piping refrigeration systemPrevent chilled water from entering boiler Connecting gas supply piping to boiler Venting and combustion airGas piping Length Natural GasWiring connections Field wiringThermostat Junction Box furnished7a Start-up preparation Freeze protection when usedDetermine if water treatment is needed Check for gas leaks7b Start-up operate boiler 7a Start-up preparation7c Start-up if boiler doesn’t start Check burner flamesCheck for Installation and service certificate Check-out procedure checklistRaise room thermostat to call for heat 9a Operation sequenceSchematic wiring diagram 9b Operation wiring diagramsService 9c Operation lighting instructions For Your Safety Read Before OperatingService technician 10a Service and maintenance schedule10b Service & maintenance annual start-up Boiler heating surfaces Burners, base and inlet air boxCondensate drain system Inducer motor10b Service & maint. annual start-up Lever must be operated AT Least Boiler relief valveReview with owner Before troubleshooting 11a Troubleshooting procedureCheck pressure switch setting 11b Troubleshooting air pressure switchControl indicator lights lockout modes 11c Troubleshooting control moduleControl module connections Chart 1 Troubleshooting Power light status 11d Troubleshooting control module lightsChart 2 Tstat Circ & Power lights flashing Chart 3 Press Switch & Power lights flashing Chart 4 Flame & Power lights flashing Turn OFF Power to boiler at service switch or breaker Does blower motor operate? Verify Sequence of operation, , 12a Replacement parts Page Page Page Page Page Dimensional drawing 13a DimensionsDOE 13b RatingsRemoval of Combustion Chamber Lining or Base Panels Handling ceramic fiber and fiberglass materials

550-110-260/02002 specifications

Weil-McLain is a well-known manufacturer of high-quality heating systems and boiler solutions, and the 550-110-260/02002 model is a testament to the company's commitment to innovation and performance. This particular boiler is designed for commercial and residential applications, providing exceptional heating efficiency and reliability.

One of the standout features of the Weil-McLain 550-110-260/02002 is its robust construction. Built using durable materials, this boiler is engineered to withstand demanding environments while maintaining optimal performance. The unit boasts a high thermal efficiency rating, which translates to lower energy costs and reduced environmental impact. The advanced design ensures that fuel consumption is minimized while delivering consistent heat output.

The Weil-McLain 550-110-260/02002 utilizes a multi-stage burner that enhances combustion efficiency. This feature not only reduces emissions but also improves overall energy use, making it an environmentally friendly choice. The sophisticated control system allows for precise modulation of the burner, ensuring that the boiler operates at peak efficiency under various load conditions.

The boiler is equipped with a user-friendly digital control interface, providing operators with real-time monitoring and diagnostics. This allows for easy adjustments and troubleshooting, which helps to reduce maintenance downtime. The integrated safety features enhance the operational reliability of the unit, ensuring safe operation in any environment.

Another important characteristic of the Weil-McLain 550-110-260/02002 is its adaptability. It can be configured to work with various types of fuel including natural gas and propane, giving users the flexibility to choose the most cost-effective energy source. This versatility also helps to extend the lifespan of the boiler as it can be easily adapted to changing energy needs.

In conclusion, the Weil-McLain 550-110-260/02002 is a high-performance boiler that combines durability, efficiency, and advanced technology. With its robust construction, efficient burner system, and user-friendly controls, it stands out as a reliable heating solution for both commercial and residential applications. The commitment to quality and innovation makes this model a preferred choice for those seeking dependable heating systems. Whether for new installations or replacements, the Weil-McLain 550-110-260/02002 delivers exceptional performance and value.
Top Page Image Contents