Bradford White IGI-180R-10 Service Manual

13, II - SPECIFICATIONS (cont.) DIP SWITCH SETTINGS Combustion Blower Dip Switch Settings for Vent Length Compensation Under 22 Feet (6.7 m): To assure optimum efficiency and reduced noise levels, the combustion blower switch has two dip switch settings. Dip switch number 1 (top dip switch) is sh…

54, IX - FLUSHING PROCEDURE FOR LIME SCALE REMOVAL FROM HEAT EXCHANGER The amount of calcium carbonate (lime) released from water is in direct proportion to water temperature and usage. The higher the water temperature or water usage and the harder the water (more dissolved calcium carbo…

43, Unable to adjust hot water temperature 1) Is the water temperature thermistor operating normally ? 2) Is the change over solenoid (SV1) normal ? 43 a. # Disconnect the connector B5, and measure the resistance between the white wires, see below for resistance readings. Thermistor resistance…

36, Bradford White IGI-180R-10 VI - TROUBLESHOOTING (cont.) Troubleshooting Procedure Unit’s wiring diagram can be found on page 29. Appliance fails to operate (even remote control fails to operate). 1) Is the fuse blown 2) Is the main transformer normal? Check fuse. a. Disconnect unit from power supply. b. # Measure…

44, 44 a. # Disconnect the modulating valve festoon C2 terminals and measure the resistance at the terminals. Normal: 67 ~ 81 Ω If normal, check b. Faulty: Replace gas valve. (Service Procedure IGI-9, page 52) b. Re-connect terminal C2 and measure voltage across the pink ~ pink wires when the un…

9, 9 II - SPECIFICATIONS - GENERAL Model type RESIDENTIAL COMMERCIAL Type of appliance Temperature controlled continuous flow gas hot water system Operation With / without remote controls, mounted in kitchen, bathroom, etc. Exhaust system Direct Vent - Forced combustion Maximum/Mi…